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OPERATING LOCATION - A DTICSELEC" -r7

USAFETAC JUL 0Air Weather Service (MAC)

CDHREVISED UNIFORM SUMMARY OFCo __ j SURFACE WEATHER OBSERVATIONS

1.LArTSBURGH AFB NY MSCII 726225

N 44 39 W 073 28 ELEV 235 FT KPBG'

PARTS A - F HOURS SUMMARIZED 0000 - 2300 LST

PERIOD OF RECORD:HOURLY OBSERVATIONS: JAN 78 - DEC 87

th_ ou SUl ARY OF DAY DATA: JAN 56 - DEC 87

"Approved for public release; 27 MAY 1988Distribut.ion Unlimited" FEDERAL BUILDING

ASHEVILLE, N.C. 28801 - 2723

-o 0 )

REPORT DOCUMENTATION PACE

la. Report Security Classification: UNCLASSIFIED

3. Distribution/Availability of Report: Approved for public release; Distribution

unlimited.

4. Performing Organization Report Number: USAFETAC/DS-88/023.

5. Monitoring Organization Report Number: USAFETAC/DS-88/023.

6a. Name of Performing Organization: USAFETAC/OL-A6b. Office Symbol:6c. Address: Federal Building, Asheville, NC 28801-2723.

11 Title: (RUSSWO) PLATTSBURGH AFB NY.

12 Personal Author(s):

13a Type of Report: Data Summary13b Time Covered: Jan 56-Dec 87.

14 Date of Report: May 1988

15 Page Count: 312

17 COSATI Codes: Field--04, Group--02

18 Subject Terms: *climatology; *weather; meteorological conditions; winds;precipitation; temperature; visibility; barometric pressure; relative humiditv; sky cover;psychrometric data; ceiling; Revised Unitorm Summary of Surface Weather Observations(RUSSWO); Plattsburgh AFB NY; New York; USNY 726225.

19 Abstract: A six-part statistical data summary of surface weather observationsfor: Plattsburgh AFB NY. Summary consists of: PART A, Weather Conditions andAtmospheric Phenomena; PART B, Precipitation; PART C, Surface Winds; PART D, Ceiling andVisibility; PART E, Psychrometric Summaries; PART F, Pressure Summaries. See USAFETAC/TN-83/001 (ADA132186), An Aid for Using the Revised Uniform Summary of Surface WeatherObservations (RUSSWO) for complete description of contents and instructions for use.

20 Distribution/Availability of Abstract: Same as report.

21 Abstract Security Classification: UNCLASSIFIED.

22a lName of Responsible Individual: Marianne L. Cavanau.h22b Telephone: (618)256-262522c Office Symbol: USAFETAC/LDD

DD FORM 1473UNCLASSIFIED

REVIEW AND APPROVAL STATEMENT

USAFETAC/DS-88/023 (RUSSWO) Plattsburgh AFB NY May 1988 is approved for publicrelease. There is no objection to unlimited distribution of this document tothe public at large, or by the Defense Technical Information Center (DTIC) tothe National Technical Information Service (NTIS).

This document has been reviewed and is approved for publication.

FOR THE COMMANDER

• /2

WALTER S. BURGMANNScientific and Technical Information Program Manager

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CSTAtION NAME: PLATOSSUAGH 3r02 NY

STATION NUMPEq: 72622$ CAIlL IQ) 0'[3 G

PERTUD Or RECORD: HO)URS SUJMPARI?7,D: 1LC-23G0 1ST

HOURLY OI3SER-iATTONS: JAN 7g - DEC %37

SUMMAR~Y Or fAT DAtA: JAN 56 - DEC 67

MOE 17ONVERSOON LST TO IlT: -5

1101-: DUE TO ADVANCED Aln! MORE THUTO)UDII QUALTITY ASSJAOIC! POOCPU-JTVL$ EMPtOTET AT USAEETAC/OL-A. tINOP CHANGE S TO

THE DATA APN STATISTICAL VALUO'S F:4911 Prn pIOUSL.Y PtlfLISHrT0 RUjSSAGS, "AT OCCI'P.

aktfma i.L 1

LL-AIUSAFrTAC/MAL/AWS rFVIS[n UNIIrORM SUMMARY uF SURFACt WEATHER OBSERVATIONSASHEVILLE !JC 2813-I

IFOUCLY Ob!LRVATIONS: ALL RECcRr OR RECOFr SPECIAL O.SERPATIUNS rECORDED ON THE AWS FORMS IDIIOA Al SCHEDULED HOURLYINTERVALS.

SUMMARY OF DAY DATA (DAILY OeSEVATIGNS: DATA COMPILED FROM ALL AVAILABLE OPSERVATIONS WHICH INCLUCES HOURLYOPSERVATIONS ANO DAILY DATA kFCOROEU IN COLUMNS 66-T, AWS FORMS ID/SOB.

LESCRIPTION OF SLMMARIES: PRECEDING EACH PART OF THIL RUSSwO IS A BRIEF DISCUSSION OF ItME SUMMARY INCLULING THEMANNEr OF PRESLNTATICN.

STANDARD '-iOUR TIME GROUPS: IN ALL SbMMARIES SHOWING DIURNAL VARIAIIONS, WE SU 'APIZE DATA USING THEFOLLOWING EIGHI 3-HOUR TIME PERIODS IN LOCAL STANDARD lIME: 0DDO-O20. '070-nS0 . 0600-RO-D, 090L-l100,I700-IO0, ISCU-1700, IeOfJZUOG, 2105-230C IST.

kOR A OETAILEU tESCRIPTILN OF EACH SUMmARY WITH EXAMPLES AND EXERCISES ON ITS USAGE, SEE USAF(TAC/TN-A3-COI "ANAID FOR USING THE REVISrn UNIFORM SUMMARY OF SURFACE WEATHER CBSERVATIONS" (RUSSWO).

lABLE OF CONTENTS:

STATION HISTORY

PART A: WEATHE CONDITIONS AND ATMOSPHERIC PHENOMENA SUM4AIES

PART 8: PRECIPITATION. SNOWFALL, AND SNOW DEPTH SUMMAPTE

PART C: SURFACE WIND SUMMARIES

PART 0: CEILING VERSUS VTSIBILII AND SKY COVER SUMMARIES

PART r: TEMPERATURE AND RELATIVE HU1MIDITY SUMMARIES

PART F: PRESSURE SUMMARIES

Y4SYSC NUMBER: THIS NUME[R IS THE AIR WEATHER SERVICE MASTER STATION CATALOG N'IMREQ. THIS NUMNER IS COlPrI'ED OFTHE WHO NUMBER WITH THE ADDITION CF A SUFFIX 10 THROUGH 01. IN CAtES WHERF THFRE iS NO DESIGNATED WMO NUMBER,A S-DIGIT NUMFk IS CREATEn IN AGREEMCNT WIT- WhO PULES PLUS A SIXTH DIGIT. THESE NUMPEPS ArE ALSC REFER&EO IC- --AS UATSAV OR USAFETAC NUMBERS WHICH UNIQUELY IDEFITIFY MOVE THAN 1bCC REPORIlNG STATIONS WORLD WIlL.

--L-

LATITUDI( LONGTUDOE IELO [LEV (FT) CALL S(GN R

726225 Plattsburgh AFR New York N 44 39 W 073 28 235 PBr

STATION LOCATION AND INSTRUMENTATION HISTORYNUMBER TYPE AT THIS LOCATION ELEVATION ABOVE NSL BUS

Of CEOCfAPHICAL LOCATION i NAME OF LATITUDE LONGITUDE PCRLOCATIO STATION FROiM TO FIELD (T) T ARO DAI

1 Plattsburgh AFB New York AFB Mar 56 Dec 70 N 44 39 W 073 27 245 165 24

2 Same Same Jan 71 Feb 78 Same W 073 28 235 Same 24

3 Same Same Mar 78 Dec 82 Same Same Same Same 24

4 Same Same Jan 83 Dec 83 Same Same S Sa]e 24

5 Same Same Jan 84 Dec 87 Same Same Same Same 24

NUMBER DATE SURFACE WIND EOUIPNEIT INFOINATIONOF TYPE oREMARKS, ADDITIONAL EQUIPMENT, OR REASON FOR CHANCE

LOCATION CHANCE LOCATION TYP E Of NETOPEER HNOADTRANSMIITTER REfCORER[ C ROUND

1 Mar 56 Located about 150 ft SW of Obser-vers room in base ops bldg. AN/GMQ-I N/A 13 ft

2 Mar 57 Located 3/8 of a mile WSW of theweather station. AN/GMQ-I RO-2 Same

3 Mar 59 Located 1/2 of a mile WNW of theweather station. Same Same Same

4 Mar 60 Located 3/8 of a mile WNW of theweather station. Same Same Same

5 Aug 61 Same Same Same 21 ft6 Mar 64 1. Located 1S miles NW of the

weather station. AN/GMQ-l Ro-2 13 ft2. Located 3/4 mile SW of the AN/GMQ-l Sameweather station.

USAFETAC o 0-19 (OL A) ppfVtOUS (SITIONS Of TUIS FORM ARE ORSOLFTF. CONTINUED ON NEVERSE SIDE

am& ,-- . , h.%. - .- - , -- -AN.- - - -- - - - - -~ - - -

NUISEN DATE SURFACE WINO EQUIPOENT INFORNATIONOF OF TYPE OF TYPE OF H ABOVE RENARKS. ADDITIO8AL EOUIPIENT. OR REASON FOR CHANCE

TiN COANCE LOCATION TRANSNITTED RECORDER CROUND

7 Mar 69 1. Same AN/GMQ-l] RO-362 Same2. Same Same Same

8 Oct 70 1. Located 300 ft E of centerline AN/GMQ-2( Same Sameof rnwy 35.2. Located 750 ft E of centerline Same Sameof rnwy 17.

9 Feb 78 1. same Same Same Same2. Same Same Same

10 Dec 82 1. Same Same Same Same2. Same Same Same

11 Dec 83 1. Sae Sam Same Sa,2. Same Same Sam

12 Dec 87 1. Same Same Same Same2. Same Same Same

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......__ _ .... .-

WE ATHER CONDJI 1 NS AND A TMOSPHE RIC PHE NOMENA SUMMA I E S

.1AER CONDITTIONS SUMMARY:

1 . A PERCENTAGE FREQUFNCY OCCURRENCE SUMMARY Of V&PIOUS ATMOSPHERIC pMCRWU'E,:s AMC OBSTRUCtION.S TO VISION.

2. OTAA BAsED ON HOURLY URSENVATIORS.

I. su'THApiz7D by THE STANnAPO 3-HOUR TIMlE GROUPS BlY MONTH, MONYR4LY AfND ANNUALLY ILL YEARS COMATNIDI.

ATMOSP1HFRIC PHENOMENA SIUMMARY:

A. A PERCENTAGE FREQUFEY OF DAYS SUMMARY OF VAPIOUS RT.*OSPHERIC "S.FNOMFNA AN() OBIPUCrIO'JsTo VIiTOTJ.

2. D)ATA BASED ON SUMMARY OF LIRY DATA.

C 3. SUMMARIZED BY MONTH WITH ALL HOURS PNO ALL YEARS C0MPINED.

c

LEE TN IT ONS:

THUNDERSYORMS.- LL REPORTED THUNOERSTORMS. YORNALOBES AN) WATERSPOU)TS.

f4ATIN AND/OR DRIZZLE: ALL REPOPYDO RAIN AND DR DRI'ZLE FALLINf, TO 'HE GROUND PUT NOT FREEZING.

FFE,-ING RAIN ANDI/Ok FrEEZINb DRIZZLE (GLAZE$: ALL RLPORT'u FREI7/NG RAIN OR FPFEZ ING DRIZZLE.

SNC. AND/OR SLEEY. SN06 INCLUOTNC SNOW PELLETS AND GRAINS. ICE CRYSTALS AND PrELETS 'SLELTI.

HAIL: ALL REPORTED HAIL.

ALL TRECIPI IATTOI: TV41S CAIEtDORY 1NCLITOES ALL "SRSENAT IONS REPORT 7NG PPFCI PTT]TCi PAICAUSE MORE THAN ON[E TPLOF PrECIPITAYTON MAY APPEAR IN N S1TILLE OT.sERVATIUTJ, THE SUM "F TMC PrPrENYY'IES IN THE 1INTIVItUAL ('ILUMNAS MATEXCEED THE PE TCETITArES IN IMTS CULIUMN.

F Or: ALL AEPO-YCO FO-G. TCE FuG AND1 GkOuU FO6.

SMORE AND/OR HAZE: ALL REPORTED) VICIFE, HAZE AND ANY COMRINATION TH[PEOF.

BLC-11-IG ShTh: ALL lqEPnETED GLOwING, SNjOw INCLJ!)IN [,PIRTTNfj WI-EN I-rIpTfTE.

OUST AND/OX SAND: ALL kFPORYLO OUST. SONS. ELOATNC, DUST. 'ILOWING NINttr tN, A'!Y CDNT'INATIDN THEREOF.THE ATMOSPHERIC PPENO"LNA SUMPYSPY ("AVG .TTI INCtLj"ES ONLY THOSE REPEATS WHEN, THE PHENOMEN.AAISItlILITY LESS TPA% S/F MILE! I" METEP5I.

ALL 03STRUCTIONS YO VISION: INCLUDES fLL IErGrT OF OPTlYRILTIPN' TO VISION (FCC THRU [lIST/SANDIANDO EICRANG SPRAY . BCAU!.L POPE TITA N ONE I-HE NUMCNA PrR 0LpSF9AYIn'N MAY OCCUR * THE SUMl- OFTHE INDTIIDUAL COLLMTIS MAY CYCED TJHI! COLLMN.

-. 00 b..&ddka -. fkbu

NOTES:

1. A VALUE IN OHE TABLES OF ".Z;" INDICATES LESS THAN *P5T UCCULRP[NCE (USUALLY ONLY Of OCCUOPACE ).

2. LTAR SIATIONS IBECINNING IN JAN 1960) AND SYNOPTIC PEPORTTNG STATIONS RECE ROP ON THEAWS FORMS 10/104 AND TRANSMTITED LONGLINE ONLY THE HIGHFST OnE OF ATMOSPHERIC PHE(NOMENA OFTERVE.

LEGINNING IN JAN 197j, MLTAP ST1TIONS PECOROFr ALL OESLEPVED PHENOMENA SLIT CONINUED TO TRANSMIT ONLY)HE HIGHEST ORDER. FOR fXARPLE IIF THE OSERVATION LONINND RAIN, FO

G AND S UKt, ALL THREE WILL

APPEAT ON THE AWs FORMS 10/IDA, BUT ONLY THE RAIN WAS TANSITTEJ LONGLINE. THFOfPfE ONLY THE RAIN

APPEARS IN OUR OATA BASE FOR HOURLY S0MRARIZATION. WHIS PRACTICE FFECTS THE PFRrLNTAQ[S IN THE TA*LES.

nb -AIR

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY oF OCCURRENCE OF WEATHER CONOITIONS

USAFETAC FROM HOURLY OBSERVATIONSAl WEATHER SERVICE/MAC

STATION NUMPER: 726225 STATION NAME: PLAT1SBU GH AFR NY PEQIOD OF RECORD: 78-87

MONTH: JAN

I RAIN FAZIN SNOW % OBS SMOKE GUST I DeS

HOURS I TSIMS L/OR RAIN C/OR HAIL WITH FOG C/OR BLCWING C/OR W/CBST TOTAL

TIST) I CRIZZLE C/OR SLEET PRECIP HAZE SNOW SAND TO GBS

DRIZZLE VI ION

00-02 3.1 .2 23.1 25.e 4.9 2.4 7.3 93u

C3-OS 1 3.1 .2 23.9 2b.1 5.9 3-4 9.4 93C

06-08 3.3 .9 25.3 28.3 7.6 3.3 11.U 930

09-I I 3.2 .9 24.7 27.7 8.1 1.0 2.9 11.4 93C

12-14 3.3 1.3 22.2 25.8 6.9 1-9 4.0 11.6 93L

15-17 4.5 .2 22.2 26.2 6.1 1.3 3.2 10.4 930

18-20 I 4.b .2 23.5 27.7 6.5 .5 2.3 9.2 93

21-21 1 4.s .3 23-5 ?7-2 4.9 .5 2.0

T.5 9712

TOTALS I 3.7 .5 23.6 26,S 6.4 .7 2.9 q.7 7440

STATION NUMBER: 726225 STATICA NAME: PLATISBURGH AFR NY PERIOG OF PECORD: 78-87MONTH: FEB

IRAIN FAZING SNOW I OR! SMOKE OUST % DesHOURS I TSTHS C/OR RAIN C/Or HAIL WITH FOG C/OR BLOWING C/OR W/

1BSI TCTAL

(LSTI I CRIZZLEL /OP SLEET PRECIF HAZE SNOW SAND T0 OBS

ORIZZLE VI! ION

00-02 1 3.5 .7 12.9 11.1 7.8 1.2 1.9 10.5 846

03-05 5.3 1.1 14.4 20.1 8.2 .9 1.9 10.s 64b

06-08 4.6 .9 14. 19.C 8.5 .9 1.3 10.4 846

09-11 5.4 12.9 Ia.[ 9.0 2.0 1.1 11.5 8q6

12-14 4.0 10.2 14.2 6.6 2.1 .8 9.0 846

15-17 1 4.U .6 11.6 IS.S 6.5 2.5 1.1 9.6 846

14-20 5.0 .6 12.3 17. 7.7 1.4 1.5 10.4 846

21-23 3.3 .6 12.4 16.2 7.6 1.2 2.4 11.1 846

TOTALS I.4 .6 126 . 17.1 7.7 .. 5 1.5 104 61768

I ~ ~ ~ ~ ~ ~ ~ ~ . : .... ..... 10Wd'l , ,, - - ' 1 m I r

.. ......*. .......

Snoka

GLLBAL CLIMATOLOGY BRANH PERCENTAGE FREOUENCY OF OCCURRENCE OF WEATHER CONDITIONS

uSAFETAC FROM HOURLY OBSERVATIONSAIM WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLA77SOURGH AFB NY PERIOD OF RECORD: ?8-87MONTH: MAR

...........................................................................................................................RAIN FRZING SNOW % OHS SMCKE DUST % OBS

HOURS 1SIMS L/OR RAIN &IOR HAIL WITH FOG E/OR BLOWING 0/OR w/CBST TOTAL

(IST) DRIZZLE E/OR SLEET PRECIP HAZE SNOW SAND 10 OBSDRIZZLE VISION

* ° * ... ° ' .... ... ' . .. ... ,

08-Z .6 .4 12.3 20,C 9.2 .3 1.4 1O.6 93L

OT-OS 1 6.9 .5 13.1 19.1 9.4 .5 9.9 930

06-08 7.0 1.1 12.9 19.8 8.3 .B .2 9.1 936

09-11 .2 6.B .N 10.0 lb.6 8.3 2.5 .6 11.3 930

12-14 6.6 .8 7.1 14.C 6.C 2.2 .9 8.6 93L

15-17 6.5 . 7.6 .1 14.2 7.1 1.7 1.1 9.4 93C

18-20 .1 88 .4 B.1 17.1 9.2 1.0 .3 10.2 932

21-23 .1 9.2 1.0 11.1 19.e 10.5 .3 1.0 11.5 93L

TOTALS .1 7.b . 10.3 .0 17.6 A.S 1.1 .8 10.1 7k 0

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NT PERIOD OF RECORD: TA-8

MONTH: APR

I RAIN FRZING SNOw a OBS SMOKE DUST % OSHOURS I TSTMS 0/OR RAIN 0/OR HAIL WITH FOG E/OR BLCWING 0/OR W/BST TOTAL

ILSIe I DRIZZLE &/OR SLEET PRECIF HAZE SNOW SAND 0 OASDRIZZLE VISION

o-02 1 11.2 3.9 14.6 A.3 B.3 900

03-05 * 1 1Z.B 4.7 lb.E S. . 8.4 9 C

06-08 10.3 2.B 12.3 6.9 .8 .1 7.7 9Cu

09-11 .1 11.8 3.8 14.4 5.6 .7 .1 6.3 9cC

12-1 12.U 3.1 14. 3 5.6 .8 .1 6.3 9CC

15-17 .3 11.4 1.7 .1 12.F 5.8 .1 5.9 9C0

18-20 1 l.L 14.3 1.8 1S. 8.0 8.0 90u

21-23 .2 12.4 2.9 14.t 7.4 7.4 9c

TOTALS .2 12.0 3.1 .. 14.4 7.3 .3 .0 7.3 720C. ....... .. ... .. :0 ...... .....

..

GLLBAL CLIMATOLOCY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONS

USAFETAC FROM HOURLY OBSFRVAIIONS

k6 WEATHER SERVICEMAC

STATION NUMBER: 726225 STAT ICN NAME: PLATTSBURGH AFS Ny PERIOD OF RECJRO: 78-87MONTH% MAY

I RAIN FRZING SNOW % OBS SPORE OuST I ORS

HOURS I TSTMS 0OR RAIN &/OR HAIL WITH FOG CIOR BLOWING E/OR W/CBST TOTALILST) DRIZZLE &/OR SLEET PRECIP HAZE SNOW SAND 10 CBS

I DRIZZLE VISION

............................................................................................................................................00-02 I.8 .2 11.9 9.1 .5 10.1 930

03-05 12.4 12.4 10.3 .4 10.5 93C

06-08 10.3 .2 10.3 9.4 1.5 10.5 93L

39-11 °1 10.4 10.4 5.5 2.5 7.5 936

12-14 I 1.0 12.2 .1 .L 12.2 5.5 2.4 7.6 93L

15-17 1.2 12.2 .2 12.2 S.3 2.8 1.6 91L

18-20 .9 10.9 .1 10.9 6.5 2.6 8.4 93C

21-23 1 1.2 12-8 12.E 7.7 1.5 9.1 930

TOTALS 1 .6 11.6 .1 .0 11.6 7.5 1. 8.9 744L

STATION NUMBER: 726225 STATICh NAMF: PLATTSBURGH AFB NY PE0I00 OF RECoRD: 78-87MONTH: JUN

.. °.. ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...................°.........°.... .°. .... .. °..

I RAIN FAZING SNOW 5 OS SMOKE DUST x ORS

HOURS I TSTMS &/OR RAIN C/OR HAIL WITH FOG 0/DR BLCwING EloR W/(BSI ITALILST) I CRIZLE &/OR SLEET PRECIP HAZE SNOW SAND 10 OeS

DRIZZLE VISION

O0-02 1 1.3 7.4 7.4 8.1 3.2 10.0 900

J3-OS 1 .4 7.8 7. 11.3 3.8 13.2 930

06-08 .3 8.1 8.1 9.8 5.9 14.2 900

.Q-l] .8 9.U 9.C 6.3 6.3 12.1 9p

12-14 1.8 9.8 9.9 3.7 5.4 8.7 900

15-17 1.7 10.0 I0.C 3.3 4.6 7.9 900

13-20 1.4 8.3 4.3 3.8 5.1 8.4 90L

21-23 1 1.2 7.1 7.1 6.9 3.8 9.4 90L

TOTALS 1.3 64 0 8 6.6 4.8 10.5 720

.. . . . . ..0 . .. . . . . . . . . . . . . . . . . . .. .. . . . . . 5. . . .

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUEhCT OF OCCURREfCE or WEATHEP CONCOITONSUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PEDIO0 Or RECORD: 78-87

MONTH: JUL

I RAIN FRZING SNOW I CR5 SWORE OUST % OO1HOURS TSIMS EfOR RAIN /OR HAIL WITH FOG C/OR BLOWING C/OR WICBS? TOTALILST) I DRIZZLE &/OR SLEET PRECIP HAZE SNOW SAND 10 OBS

DRIZZLE VISION

00-02 .8 5.3 5.3 7.1 5.? 11.2 930

03-05 1.2 4.9 4.1 8.8 5.7 12.5 93C

06-08 .8 4.6 4.6 7.5 8.8 14.2 93C

09-11 .5 4.8 4.8 3.8 11.2 14.5 9 3

L

12-14 1 2.6 5.7 5.7 2.5 10.1 12.3 93L

15-17 ? 2.5 7.4 7.4 2.9 7.1 10.1 9 3

L

18-20 2.3 8.7 8.7 3.9 5.8 9.0 930

21-23 I 1.1 6.0 6

.C 4.7 5.6 8.8 9 3

L

TOTALS I 1.5 5.9 5.9 5.2 7.6 11.6 744L

STATION NUMBER: 726225 STATICR NAME: PLATTSBURGH AFB NY PERIOD Or RECORD: 78-87

MONTH: AUG

.............................................................................................................................................I RAIN FRZING SNOW % UBS SMOKE OUST % OpS

HOURS I ISIMS C/OR RAIN CIOR HAIL WITH FOG CIOR BLOWING E/OR W/(BS1 IOTALILST) I DRIZZLE C/OR SLEET PRECIP HAZE SNOW SAND TO OBS

DRIZZLE VISION

.............................................................................................................................................00-02 1 1.2 9.5 9.5 11.5 5.7 15.3 93u

03-05 1 .9 7.6 7.6 14.4 6.2 17.1 93L

06-08 1 .5 7.5 7.5 13.4 8.3 18.4 930

09-11 .6 6.7 6.7 8.7 10.4 16.7 93L

1?-I4 1.1 b.9 6.5 4.4 7.8 11.9 930

IS-17 3.5 8.1 . 1 3.9 7.4 11.0 930

18-20 2.8 7.4 7.4 6.7 8.1 13.9 93L

21-23 1.7 8.7 8.7 9.2 6.3 14.6 93L

TOTALS 1 1.5 1.8 1.8 9.0 7.5 14.9 7110

.. . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .... . . .. ... ..... . ..... ... . . ......... Ia .. . . ... . . .. ... .. . . .

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUEhCY OF OCCURRENCE or WEATHER CONDITIONS

uSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF3 NY PERIOD OF RECORD: 7p-sMONTH: SEP

I RAIN FAZING SNOW I OBS SMOKE DUST % OBSHOURS I STHS CIOR RAIN C/OR HAIL WITH FOG C/OR SLOWING /OR WA/CST TOTAL

ILSTI I DRIZZLE &/OR SLEET PRECIF HAZE SNOW SAND 10 OBS

I DRIZZLE VISION..........................................................................................................................

00-02 .6 8.8 8.8 10.3 3.4 12.1 900

03-05 .4 10.1 10.13 3.2 12.3 900

06-08 .2 9.1 9.1 5.8 3.4 12.2 9C0

09-11 .4 7.b 7.6 B. 4.1 11.1 900

12-14 .1 8.3 8.3 S.3 3.4 S.3 9 0

IS-IT 1 .7 9.2 9.2 5.3 4.3 9.3 9

0C

18-20 1 .2 8.9 8.4 6.0 4.1 9.6 900

21-23 1.4 9.0 9.c 8.4 4.1 10.9 9CL

TOTALS .5 8.9 8.9 7.9 3.8 10.8 72o

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87MONTH: OCT

..................................... .........................................................................................................I RAIN FRZING SNOW % OB SMOKE OUST % 08s

HOURS I TSIMS C/OR RAIN C/OR HAIL WITH FOG C/OR BLOWING C/OR A/(BST TOTAL

(LST) I DRIZZLE C/OR SLEET PRECIp HAZE SNOW SAND 10 OS

DRIZZLE VI!ION...........................................................................................................................

O.-02 .1 9.8 9.8 7.0 1.5 7.8 930

03-05 11.5 .5 I.5 8.5 1.1 9.0 910

06-08 10.2 1.0 ]0.1 11.5 2.2 12.8 930

09-11 10.3 .9 I0.P 9.0 2.3 10.9 9!c

t2-14 . 1 15.5 .3 11.1 5.4 1.9 7.1 93C

is-I7 10.2 .1 10.3 4.9 1.7 6.3 931

18-20 .2 9.7 . 7 5.4 .8 6.1 93U

21-23 9.5 .1 9.5 5.5 .9 6.2 930

TOTALS .1 1().3 .4 1U.5 7.2 1.6 8.3 7440

TOTALS - Ag

0 + + ° +o u..-4

GL(BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCrURREACE OF WEATHER CONDITIONS

USAFETAC FROM HOURLY OBSERVATIONSAIF WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAIISBURGH AFB NY PERIOD OF RECORO: 78-87

MONTH: NOV

...........................................................................................................................I RAIN FRZING SNOW % 0

8S SNORE DuST % ORS

HOURS I ISTMS &/OR RAIN CIOR HAIL WITH FOb E/OR BLOWING E/OR W/LEST TOTALILST) | DRIZZLE 61OR SLEIT PRECIF HAZE SNOW SAND TO 08S

I DRIZZLE VI!I ON

00-02 13.0 .6 5.1 17.8 9.' .2 9.7 900

03-05 12.6 .7 7.0 18.9 7.6 .2 7.8 900

06-08 12.7 .4 7.0 19

.C 9.3 .7 .2 10.1 90o

0-11 I1.6 .1 7.2 16.9 8.2 1.2 9.3 90C

12-14 11.3 6.1 16.9 8.7 1-2 .6 10.3 900

15-17 11.1 .2 6.2 16.5 8.9 .8 .4 10.1 900

18-20 10.4 .3 7.7 17.9 9.3 1.1 .6 10.9 9C0

21-23 13.9 .9 5.9 18. 9.3 .4 .4 10.1 9no

TOTALS 11.9 .3 6.6 17.9 8.8 .7 .3 9.8 720Ce... . . . . . .. . . . . . . .. . . . . . . .. . . . ........... .. ..................................... ee ° ° ° ..Q ° ... ee .... ... ..

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFR NY PERIOD Or RECORD: 78-87

MONTH: DEC... . .. . . .... ..e . .. . . ... . . . . . . . . . . . . . . .. . . . . . . . . . . . . ............. .o e ~..........e e~ . .. ...e. e. .. ...

I RAIN FRZING SNOW I OpS SMOKE OUST I ORSHOURS I TSTMS E/OR RAIN C/OR HAIL WITH FOG L/OR BLOWING E/OR w/(AST TOTALILSTI I OIZZLE £/OR SLEET PRECIF HAZE SNOW SAND 10 DaS

DRIZZLE VI3ION

.............................................................................................................................................0n-02 5.4 1.0 17.1 22.S 7.4 .4 1.7 9.2 93G

03-05 b.1 1.0 17.8 23.9 6.5 .6 1.0 7.7 93C

06-08 5.6 .9 17.8 23.3 8.2 .6 1.1 9.6 930

09-11 4.9 .9 18.0 22.9 9.1 .9 1.8 11.3 930

12-14 5.2 .9 13.4 I0.2 8.8 .8 .9 9.8 970

15-17 .2 5.3 .9 It.8 22.7 8.8 .5 1.1 10.0 930

18-20 .4 .8 17.9 12.4 8.4 .3 1.4 9.8 928

21-23 6.G .5 18.7 24.6 7.7 .3 2.3 9.9 927

p TOTALS .0 5.3 .9 17.6 22.9 8.1 .6 1.4 9.' 7135

SANI . .-

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONSuSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-8?

MONTH: ALL

d I 1.1 RZ'Z LE C / 0.LEE TECIP HAZE SNOW SAND 70 O0IDRIZZLE 81S1 ON

. . .......................................................................

Sd ANLL 3.1 .5 23.6 26.9 6.9 .7 2.9 9.7 7440

t7

9.9 .6 12.6 17.1 7.7 1.5 1.5 10.9 6768

HN1 7.6 .6 10.3 .0 17.6 8.5 1.1 .8 10.1 7440

SAP" .2 12.0 3.1 .3 19.9 7.0 .3 .0 7 .3 7200

"AV .6 31.6 .1 U0 11.6 7.5 1.8 8.9 744Z

Alum 1.1 8.9 8.9 6.6 4.8 10.s 7200

JUL I1.5 S.9 S. 9 5.2 1.6 11.6 7990

AUG 1.5 7.8 7.8 9.0 7.5 14.9 144C

SEP 3.5 8.9 8.9 7.9 .8 10.6 7200

OCT ,1 10.3 .9 10.! 7.2 1.6 8.3 7440

NOV 11.9 .3 6.6 17.9 8.8 .7 .3 9.8 7200

DEC ,0 5.3 .9 17.6 22.S 8.1 .6 1.9 9.7 735

TOTALS .5 8.2 .2 6.2 a0 14.2 7.5 2.7 .6 10.2 67693

..............................................................................................................................................

IA- ago_ -

05

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE OF DAYS WITH VARIOUS ATMOSPHERIC PHENOMENAUSAFETAC FROM DAILY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 56-87

MONTH: ALL.......................................................................................................................

RAIN FRZIN6 SNOW % OBS SMOKE OUST % OS

I TSTMS ./OR RAIN 1/OR HAIL WITH FOG E/OR BLOWING LIOR Ii/BST TOTALMONTH D DRIZZLE f/OR SLEET PRECIP HAZE SNOW SAND TO Os

ORIZZLE VISION...........................................................................................................................

JAN .4 16.8 5.7 66.9 70.8 19.5 13.6 10.2 35.9 978

FEI 18.7 S.O 56.9 63.1 23.9 17.3 9.2 37.s 904

MAR .9 29.1 1.1 92.7 57.0 26.9 12.3 5.1 39.1 992

APR 3.6 46.1 .3 17.6 52.9 26.1 8.4 1.1 29-5 960

MAY 9.5 52.9 2.7 .3 53.5 29.3 9.9 26.7 992

JUN 19.3 52.7 .3 52.7 27.6 20.7 34.9 960

JUL 23.0 99.6 .9 99.6 25.1 26.5 35.6 991

AUG 18.7 49.5 99.5 27.7 26.2 36.5 991

SEP T.8 76 B.1 .2 98.1 30.1 19.6 36.1 960

OCT 2.0 99.8 S.8 2 16*8 25.1 13.9 28.8 992

NOV 1.0 99.1 2.9 35.3 67.7 29.6 11.5 1.7 34.1 959

DEC -4 28.0 7.4 65.6 76.9 26.9 22.1 8.4 39.2 992

TOTALS I 7.2 90.9 2.1 24.5 .1 57.3 26.0 16.0 3.0 39.0 11671

..................................................................................................

° ° e ° ° e e ° ' e e ~ e ° ° * °° e ~ e ° ° ° e ° o m s ~ m e o o m w m ~ e m w~ L

kPPPPPFP FIRA hPRkRIkP TITYT T IT I T PIPPFPPPFPP AAARA RHRRAPR TTITT TI7T pbeshpI Rpp pp AA AR RR PR TT p B 68

ppPPppP AA AA RRTPRR TTp, bppppppp' A ARRAA RNPRPRRRk TT pecflBIRRPPppp AARAAR R AR AI p pp p 7RpnBc

pp AA A RA R R rR T Tp 13 ppVP II AR RR R TT rs13ipbpppppp ARA A RP PR R T p P3P8

V ~ ~ -r-Kt

PRECIPITATION. SNOWFALL AND SNOW DEPTH SUMMARIES

PEACLNTAGE FREQUENCY Of VAPIOUS DAILY AMOUNTS OF PRECIPITATION ISNOWFALL Amn SNOW DEPTHI SUMMARIES:

THESE SUMMARIES DERIVE FROM SUMMARY OF DAY DATA.

DATA APE SUMMARIEO MONIHLY AND AKNUALLY WITH ALL YARS CO'BINED.

DISPLAYED ARE: PERCENT OF DAYS Will' MEASURABLE AMOUNTS. A FECEN1T C(F DAYS 61TH NC AMOUNTS, TRACES. GIVIN AMOUNTS.

MEANS, GREATEST AMOUNTS AND LEAST AMOUNT- (THE STATISTICAL ALuES ARE NOT TNCLUDED IN TIlE SNOWDEPTH SUMMARY BECAUSE CF THEIR DOESIFUL A%D LIMITED VALUr).

ALSO PROVIDED ARE THE PbSE"VATIUN COUNTS.

A VALUE OF 'o[" IN THESE TABLE-; IND:ATES -SS THAN .052 WHICH USUALLY INDTCYTES ONLY ONE OCCUTRENLE.

LITREME DAILY AMOUNTS OF PRELIPDTATIUN ISNOWIALL AND SNOW UEPT11 SLMMAPIES:

DATA DERIVED FROM SUMMARY OF DAY DAIA

PRESENTED ARE THE EXTREPE DAILY AMOUNTS OF PRECIPITATION, SNOWFALL ANO SNOW OEPTH RY INUTVIUAL Ot.T' AUD yEAR.

ALSO PRESENTEO( ARE THE MEAN5. STANDARD DE[VIATIONS AND TOTAL OASERVATION COUNTS.

AN ASTERISK "" PRINTED IN THE TABLES INDICATES THAT THE ExIREME VALUE FOR THAT YEAR AND MONTH

DERIVES FROM AN INCOMPLETE MONTH IAT LEAST ONE DAY OF THF MONTH IS MISSING).

WHEN A MONTH HAS VALID ORSERVATlONS REPORTED BUT NTn OCCURRENCES, ZEROS APE OISFLAYr IN THE ViALES:

LXITR"E DAILY PRLCIPITATION: ".UO" EQUALS NONr FOR THE MONTH IHfNOREDTHSI

EYTREME DAILY SNOWFALL: ".UD EtIIJaS NONr

FOq THE MONTH (TrNTHSI

EXTREME DAILY SNOW OEPTH: 0"i ELUALS NONE FOR THE MONTH (WHOLE INCHES)

TOTAL MONTHLY AMOUtNTS OF pRECIPITATION AND SNOWrALL SUMMARIES:

DATA DERIVED FPO'M SUMMARY OF DAY DATA.

DATA PRESENTFO BY YLAR AND MONTH.

ALSO P17ESENTED AYE THE MEANS, S1ANPAPLI EFvIATIONS AND TOTAL OSEPVAATION COLUNTS.

AI ASTFRISA "*" IN IHE TADLES INDICATES THAT OE Or MOITE DAYS wQE[ MISSING, FnP THE MONTH.

NO OEC'JRRENCES FOR THE MONTH ARE ISuICATED Bv

?LPOS.

IF THE AMOUNT IS A TRACE. THEN "TRACE" IS PRINTED IN THE TAbLES.

sTATISTICAL VALUES DO NOT INCLIDE MEASUREMENTS FDOM TNCOPLLTE MONTHS.

S p

,boom... . Am_- ,,, _ ,. _ .. , .-.-, d -i H m ,, ,,

GLOBAL CLI.ATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF PRECIPITATIONUSAFETAC FROM SUMMARY OF DAY DATAAIR WEATHER SERVICEtNAC

STATION NUMBER: 726225 STATION NAME: PLAYTSBURGH AFB NY PERIOD OF RECORD: 56-B7..............................................................................................................

AMOUNTS IN INCHES

I I I I .021 .061 .11 1.26 I .51 I 1.011 2.51 I S.O1 I 10.011 OVER 1 2 DAYSI TOTAL[ MONTHLY AMOUNTSN T I o1 70 1 T TO I TO 1 10 I O I 70 170 I ITH I

MONTH NONE ITRACEI .0 1 .051 .101 .25 1.50 I 1.001 2.501 S.o0 I 10.001 20.01 20.00 i MEAS I Ot II II I I I I I I A I I I MEAN GREATEST LEAS1

.................................. ........ ....... ....... ...... i......................I I I I I I I I

JAN 2a.4 33.81 4.8 113.71 5.41 7.9 3.71 1.8 1 .4 I 37.7 I 'q1 1.67 4.20 .20:I

FEB 36.4 30.11 4.5 1 9.51 4.51 7.61 q.5I 2.4 .3 I 33.5 904?1 1.60 N.45 .30If I IMAR 42.5 I 23.9) 3.3 1 9.0? 5.41 8.31 4.21 2.8 1 .5 133.6 9921 1.91 3.9 .19

APR 47.01 19.1? 2.6 8.21 5.1 7.51 6.31 3.61 .6 I 34.0 9Ol 2.29 6.08 ,55I I g 22 61

BMAY 46.8 I15.9? 2.5 1 6.71 7.41 7.81 6.4? 3.6 1 .0 1 1 37.3 I 9921 2.58 5.94 .49JU I IJUN 47.5 14.61 2.5 1 7.8! 6.01 9.01 6.71 4.7 1 1.3 I 37.9 9601 2.83 7.70 .44I i I I I IJUL "50.4 114.41281741 5.0?1 7 4.0 .8 I . I 35.2 1 9921 2.79 6.12 .96

AUG 50.8 1 14.7? 2.7 1 5.61 5.4? 6.8? 6.11 5.8 1 1.8 1 .1 I 34.51 9921 3.33 6.46 .31

2 I I I52.1 1111 3.6 7.0? 4.51 7.41 6.01 3.6 I 1.5 1 .2 11 33.9 9601 2.79

5.63 .9OC I I I 1 1.63 .48OCT 53.3 1 12.91 3.7 1 7.51 4.7? 7.2? 5.51 I 1.1 I 33.a1 9921 2.47 5.31 .38I I I I I INOV 32.3 1 27.81 4.4 111.11 4.01 9.0? 6.71 4.5 1 .3 1I 39.9 960 2.43 5.28 .59

I I I I1 I I I I96 1 2 4 . 8 9

DEC 23.4 35.51 5.6 111.51 6-81 8.2 5.41 2.61 1.0 1 41.1 1 9921 2.20 4.90 .47I I I I I II I I I o I I......................................................................................................................................ANN 1 42.6 I 21.41 3.6 I 8.91 5.31 7.81 5.81 3.6 I .9 I .0 I I I 36.0 I 116741 28.B9

*- ff-

. . -- , . , _ . .,- .. . . -- , . ... . ..... . .- -~

'Uw

GLuBAL CLIMATOLOGY BRANCH EXTREME VALUES OF PRECIPITATIONUSAFETAC IFROM DAILY OBSERVATIONS)AIR WEATHER SERVICE/MAC

STATION NUMBER: 72622S STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: 56-87

............................................................................................................................25 HOUR AMOUNTS IN INCHES

3 -M-O-N-T-H-S- ALLYEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MONIHS

56 I .37 .53 .95 .99 1.52 .31 .56 .56 .61 .26 *52 .56 1.42

57 .61 to8 .34 .36 1.25 1.15 1.00 .25 .75 .54 .5l .74 1.45SB 1.00 .43 .37 .73 .52 .65 .65 .63 3.02 1.22 .58 .47 3.0259 1.28 .10 1.26 .23 .2% 1.21 .5& .89 .30 1.18 .87 1.12 1.2860 .32 .99 .4 .38 .75 1.02 .92 .32 1.92 .86 .31 .42 1.9261 1.77 .87 .61 .75 .71 .72 .98 .92 1.15 .38 .33 .4c 1.7762 .48 .69 .61 .52 .61 1.10 1.85 1.51 .91 .61 .74 .52 1.8563 .59 .23 .65 .64 1.06 -56 .66 1.58 .?1 .27 .66 .38 1.4864 .69 .26 .82 .92 1.10 .99 .86 2-22 .22 .64 .52 .51 2.2265 .23 .32 .17 .53 .91 .68 .91 1.33 .75 .67 .78 .18 1.3366 4.2 .54 .54 .29 .40 .71 .35 .66 1.59 .33 .30 .68 1.5967 .53 .53 .07 .88 .SS .6b 1.67 1.15 .56 1.17 .5 .75 1.6?6b .43 .24 1.03 1.71 .53 .66 -69 .62 .55 .86 .69 1.11 1.7169 .32 .28 .72 .59 .81 .86 .52 1.07 .70 .71 .96 1.11 1.1170 .21 .27 .50 .93 .65 1.27 1.01 .To .36 .68 .61 1.12 1.2771 Z.? .72 1.06 1.16 .58 .95 .93 1.54 . 6 .94 .58 .58 1.5472 .28 2.09 .83 .38 .92 .89 1.32 55 .Z7 .81 1.05 .So 2.0973 .31 .40 1.21 1.21 1.13 1.80 .78 .61 1.12 .S2 .85 1.26 1.8074 .29 .75 .77 .95 .72 .88 .85 1.65 .79 .17 1.32 1.13 1.6575 .47 .57 .7 i78 .35 .61 1.73 .47 1.63 .81 S4 .89 1.7876 .72 .40 .49 1.06 1.26 1.58 .81 .68 .81 1.29 .43 .28 1.4877 .83 1.17 .75 .55 .33 1.38 .51 1.25 1.07 1.59 .93 .82 1.4978 1.37 .16 1.35 .50 1.09 1 *56 .66 .42 1.39 .22 1.16 1.3979 1.02 .50 .59 .85 1.02 :21 .25 .75 3.1 .57 .81 1.12 3.1480 .12 .17 .63 .47 .28 .26 .71 .80 1.32 .77 o68 .30 1.3281 .24 .78 .27 .53 .53 .58 .81 3.00 1.39 .92 .63 .56 3.0082 .55 .65 .56 .72 .95 .73 1.26 1.39 .81 1.09 1.82 .38 1.8283 .57 .70 .63 1.16 1.11 .28 .68 1.56 2.13 1.05 .89 1.75 2.1384o .17 1.25 .35 .72 1.62 .30 1.39 .72 .52 .71 .82 1.05 1.62B5 .52 .51 .68 .87 .5O .98 .46 1.06 1.60 .SS .67 .4

9 1.60

NOTE I EBASED ON LESS THAN FULL MONTHS)

CONTINUE0 ON NEXT PAGE....

4 L

GLtBAL CLIMATOLOGY BRANCH EXTREME VALUES O! PRECIPITATIONUSAFETAC (FRoM DAILY 08SERVAlIONS)


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: 56-87

:".........................................................' ' ' ' '' ' ' ''.O. ... ... .... ... .... ... .... ... .... ... ..241 HOUR AMOUNTS IN INCHES

-M-O.N-T-H-S- ALLYEAR JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV EC MONTHS

86 | .90 .28 .70 -19 .80 .76 .83 .93 .86 .46 .78 .28 .91

87 I .85 .19 .83 .93 .47 .76 .59 1.50 1.83 1.12 .85 .44 1.83........... .......... .......... ........... .......... .......... ...... .... ........ ... .......... ..... °.... .°... °... °

MEAN I .589 .567 .669 .755 .780 .835 .859 1.038 1.076 .782 .7D3 .71B 1.751S.. I *387 .39. .302 .385 .354 .381 .393 .572 .728 .33 .317 .374 ,SO

TOTAL OBS I 978 904 992 960 992 960 992 992 960 992 960 992 11674

NOTE A (BASED ON LESS THAN FULL MONIHSI

L. L.

GLOBAL CLIMATOLOGY BRANCH MONTHLY PRECIPITATIONUSAFETAC (FROM DAILY OBSERVATIONS)AIR WEATHER SERVICE/MAC


. .............................................................................................................................

TOTAL MONTHLY PRECIPITATION IN INCHES-M-O-N-T-H-S- ALL

YEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EC MONTHS

Sb I *56 1.55 3.28 2,05 j.S1 1.32 2.38 1.89 2.69 .79 1.32 2.80 923.89

5T 1.90 .99 .73 .97 2.81 9.06 3.09 .31 2.60 .97 1.82 2.79 22.9958 3.99 1.56 1.18 2.83 2.794 3.22 2.27 3.19 5.0z 5.22 1.83 1.61 34.1159 2.99 3.08 2.39 .S9 .73 3.28 1.36 2.89 1.09 5.31 2.*9 3.85 29.9060 1.75 2.90 1.91 1.80 2.30 2.89 1.59 1.07 3.50 3.55 .83 .66 24.1561 2.02 2.21 2.19 3.96 2.35 2.56 9.06 2.92 1.99 1.63 1.95 1.59 26.38

62 1.00 2.38 1.39 2.01 1.92 20SS 4.94 2.93 2.62 3.06 2.34 1.66 2R.3263 1.39 1.23 2.37 2.98 2.59 1.90 2.02 9.98 1.70 .38 3.77 1.23 26.5969 1.39 .99 2.18 1.65 3.18 1.91 3.36 6.19 .98 1.71 1.87 1.59 25.9565 .S4 7o .99 1.38 1.22 2.01 2.12 6.15 2.99 3.06 2.33 .b7 23.1166 1.90 1.62 1.97 .70 2.16 2.95 1.36 3.73 3.77 .87 1.32 2.00 23.3567 1.38 .99 .19 3.19 2.60 3.07 4.65 9.39 1.96 3.62 1.39 1.91 2e.6968 1.39 .76 3.99 2.68 2.99 2.81 2.Q6 1,52 1.62 2.28 2.93 2.66 2t.6969 1.09 .96 .89 2.93 2.33 3.72 2.25 3.58 1.78 1.61 9.49 3.76 28.8970 .S1 1.27 1.32 2.22 2.77 2.92 2.15 2.72 2.39 2.70 2.02 3.74 26.6871 .63 2.79 2.69 1.68 1.71 1.88 9.80 9.58 1.60 1.79 1.61 1.29 27.0072 1.37 9.95 3.21 1.07 3.20 5.SD 6.72 2-57 .81 2.08 3.99 3.68 38.6573 1.20 1.18 1.90 4.58 5.60 • 7.70 2.93 2.31 3.59 1.59 2078 9.98 39.7979 1.86 1.27 2.97 2.63 3.71 2.89 3.38 3.05 3.02 .53 3.31 2.97 31.5975 1.9 2.67 1.81 2.90 .92 1.70 2.83 2.37 9.29 9.02 2.88 1.93 29.7676 2.01 1.69 1.88 2.00 4.39 3.65 3.90 3.02 3.08 9.47 .59 .97 30.6577 1.18 1.38 3.28 1.93 .99 9.30 1-92 q492 5.63 9.38 3.88 2.94 35.7378 9.20 .30 2.62 1.98 2.39 9.22 1.87 1.30 1.07 3.31 .61 1.78 25.6079 3.96 .57 1.17 3.80 2.31 .9 .96 9.07 9.71 1.70 2.39 1.80 27.3380 .20 .92 1.67 2.78 1.05 1.09 2.99 5.09 4.83 2.02 2.92 3.85 25.181 .95 2.79 .77 1.68 1,52 2.39 2.61 6.96 5.21 3.90 2.30 1.66 31.1982 1.42 1.18 1.32 1.70 2.21 3.20 2.85 3.03 2.22 1.52 3.61 1.13 25.39

83 1.60 1.81 2.92 6.08 9.82 1.99 2.73 9.51 2.69 3.10 5.28 9.90 93.3889 .62 2.73 1.85 3.07 5.99 .97 3.91 2.99 3.66 1.67 2.77 3.02 3o.708s 1.37 1.69 1.99 1.39 2.94 2.73 1.53 1.97 3.13 2.59 2.92 1.68 25.36

NOTE I (BASED ON LESS THAN FULL MONTHS1

CONTINUED ON NEXT PAGE....

AMR-L

.. . . L

GLLBAL CLIMATOLOGY BRANCE MONTHLY PRECIPITATION

USAFETAC IFROM DAILY OBSERVATIONS)


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF0 Ny PERIOD OF RECORD: 56-87

...................................................................................................................................................TOTAL MONTHLY PRECIPITATION IN INCHES

| -M-O-N.T.H-S- ALL

YEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV CEC MONTHS

86"' 2.90 1.12 2.5, .55 2.79 3.28 2.89 %.S3 2.91 1.90 2.88 1.80 29.2S87 I 3.55 .6 1.65 2.0S 1.58 2.61 1.90 3.87 3.68 2.40 2.23 1.D8 26.66

S.D. 1 1.006 .961 .856 1.182 1.276 1.396 1.237 1.510 1.352 1.308 1.109 1.139 8.712TOTAL OBS 1 978 908 992 960 992 960 992 992 960 99? 960 992 1167%

NOTE 0 6BASED ON LESS THAN FULL MONTHS)

-' L

I

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SNOWFALLUSAFETAC FROM SUMMARY OF DAY DATAAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB MY PERIOD OF RECORD: 56-87................................................................................................................................

AMOUNTS IN INCHESI I 0.1 I 0.51 1.51 2.5 I 3.51 4.5 I 6.5 I o.5 I 15.s I 25.5 I OVER I D DAYSI TOTALI PONTHILY AMOUNTS

ITO I TOI TOTO OTO 01TO TO I WITH IMONTH NONE ITRACEI 0.4 I 1.91 2.91 3.2 I 4.41 6.4 10.1 15.4 25.9 I 50.9 I S1.9 I MEAS i OS I

I 1I I I I I I I I I I I AMTS I I MEAN GREATEST LEASI

I I I IJAN 31.5 35.0113.4 110.51 3.21 2.71 1.01 1.6 .7 .3 1 .1 1 1 13.5 I 9761 15.4 36.9 1.0

B.FES 1 1.6 29.5110.6 8.81 3.3 2.7 1.01 .5 1 .6 .2 1 .1 I I I 28.9 I 9041 12.7 45.3 1.2I I I I I I III I IMAR 1 56.0 1 23.51 7.0 1 6.91 2.61 1.21 .81 1.3 I 1.1I .1 1 1 20.5 9921 11.3 38.7 .4

I I I ~~I I I I I I IIIAPR 182.2 111.31 2.8 12.1 .31 .I .1 . .31 1.11 1 1 6.61 9601 3.3 20.6 .0

I I I I I I I I I IMAY 197.31 2.41 1 .21 .11 1 1 1 1 1 1 1 I .31 9921 .1 2.9 .0

JUN 1100.01 1 1 I I I 9601 .0 .0 .0I I I I I I I I IJUL 1100.01 I 9921 .0 .0 .0

I I I I I I I I

SEP 1 99.8 .21 | 1 1 1 1 9601 TRACE TRACE .0I I I I I I I I

OCT 1 94.11 5.31 .31 .21 .11 1 1 1 1 1 1 1 1 .61 9921 .1 1.8 .0I I I I I I I I I I I I I I I

NOW 64.0 26.6 3.6 12.41 1.91 .31 .91 .31 .5 9.1 1 9601 4.5 14.2 TRACE

DEC 1 33.7 I 36-2110.7 110.41 2.71 1.31 1.51 2.0 1 .9 1 .5 I 1 1 1 I 30.1 I1 9921 16.2 98.9 1.I I I I I I I I I I I

.........................................................................................................................ANN 75.0 I 19.21 4.0 I 3.41 1.21 .?1 .41 .6 I .3 I .1 I .0 I I I 10.8 I 116711 63.6

L

GLUBAL CLIMATOLOGY BRANCH EXTREME VALUES OF SNOWFALLUSAFETAC IFROM DAILY OBSERVATIONS)

A£1 WEATHER SERVICE/MAC

STATION NUMBERs 726225 STATION NAME: PLATTSBURGH AFS Ny PERIOD OF RECORD: 56-87

21 HOUR AMOUNTS IN INCHES-M-0-N-T-H-S- ALL

YEAR | JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV DEC MONTHS

-56 I 3.5 R*T 9.5 TRACE TRACE .0 .0 .0 .0 TRACE 2.5 6.6 9.5

57 8.7 .6 3.4 .8 TRACE .0 .0 .0 TRACE TRACE 1.5 4.8 8.858 I 10.9 5.5 3.8 .3 TRACE .0 .o .0 .0 TRACE 6.T 5.0 1D.9

59 12.9 .7 5.8 TRACE TRACE .0 .0 .0 .0 .7 3.4 5.7 12.960 3.2 9.9 5.1 1.1 .0 *0 .0 .0 .0 TRACE TRACE 4.2 9.961 17.7 .9 6.1 7.5 .0 .0 .0 .0 .0 TRACE .9 -. 0 17.762 1 3.8 6.9 5.7 3.0 .O .0 .0 .0 .0 .1 2.3 3.9 6.9

63 5.9 2.3 6.5 .8 1.5 .0 .0 .0 .0 .0 1.2 f.0 6.564 o 8.8 2.3 6.7 2.T .0 .0 .0 .0 .0 TRACE 2.0 5.1 6.765 3.1 2.1 2.0 TRACE *0 .0 .0 .0 .0 1.0 2.3 2.0 3.1

66 8.8 8.8 1.0 .6 .6 .0 .0 .0 .0 TRACE 2.1 7.4 8.467 6.9 5.8 1.1 .9 TRACE .0 .0 .0 .0 TRACE 1.2 4.9 6.968 3.5 2.4 9.3 .0 .0 .0 .0 .0 .0 TRACE 4.0 '.2 9.369 3.1 4.4 .3 8.0 .0 .0 .0 .0 .0 1.8 2.0 12.5 12.5

10 3.2 8.2 2.0 8.7 TRACE .0 .O .0 .0 TRACE .1 13.2 13.271 3.8 T.3 is.% 6.5 .0 .D .0 D0 .0 .0 5.8 E.3 18.872 2.8 21.1 8.2 .6 .0 .0 .0 .0 .0 TRACE 5.9 f.2 21.173 2.8 7.0 .8 5.4 .0 .0 .0 .0 .0 .0 2.0 11.2 11.2

74 3.0 3.8 B.S 10.0 .0 .0 .0 .0 .0 TRACE 8.8 7.8 10.075 8.3 5.9 3.1 15.8 "0 .0 .0 .0 .0 TRACE 1.6 1.1 15.876 I .5 3.0 4.9 TRACE .0 .0 .0 .0 .0 TRACE 2.0 1.3 4.9

77 10.0 5.8 4.5 .4 .0 .0 .0 .0 .0 TRACE 1.3 C.6 10.0T8 11.5 2.7 7.1 1.9 .0 .0 .0 .0 .0 .0 3.7 17.8 17.879 5.8 1.8 .7 2.0 .0 .0 .0 .0 .0 .8 TRACE .7 5.4so .8 2.1 9.2 TRACE .0 .0 .0 .0 .0 .0 3.5 8.1 9.281 4.2 2.4 2.0 1.3 .0 .0 .0 .0 .0 .0 .4 5.2 5.

282 6.3 2.5 6.6 .8 .0 .0 .0 .0 .0 .0 TRACE ;.0 6.683 S.5 10.8 1.8 6.5 TRACE .0 .0 .0 .0 TRACE TRACE 5.3 10.8

84 4.5 11.3 5.7 TRACE TRACE .0 .0 .0 .0 .0 7.2 18.4 14.4

85 5.1 3.2 7.0 1.0 .0 .0 .0 .0 TRACE .0 2,1 8.9 7.0

.................................................... ..........................................................................................

NOTE * (BASED ON LESS THAN FULL MONTHS?

CONTINUED ON 1,ERt PAGE-...

* LL_

6LUBAL CLIMATOLOGY BRANCH EXTREME VALUES OF SNOWFALLUSAFETAC (FROM DAILY OBSERVATIONS)AIR WEATHER SERVICEJMAC

STATION NUMBER: 726225 STATION NAME: PLAITSBUR6H AFB Ny PERIOD OF RECORD: 56-87

..................................................... ...............................................211 HOUR AMOUNTS iN INCHES

I -M-O-..hT-H- S- ALLC-

YEAR I JAN FEB MAR APR MAy JUN JUL AU6 SEP OCT NOV DEC MONTHS

..... 9;;...6 2:...6: .... 5 RC TRACE'; .... 1 ..... ... 0.. .0 TRACE 7.8 2.89.

87 I 9.2 1.9 3.5 .3 TRACE .0 .0 .0 .0 TRACE 8.5 4.5 9.2.......................... ....... ................................................................................................................

MEAN m 5.97 '1.90 '1.98 2.11' .07 .00 .00 .00 TRACE *13 2.90 6.18 10.20

S.D. 3.682 4.DJ4 3.638 3.561 .282 ODO .000 .000 .000 .377 2.616 3.984 11-493T07AL OBS | 978 904 992 90 992 960 992 992 960 992 960 992 11674. . . ..............................................................................................................................

NOTE * IBASED ON LESS THAN FULL MONTHS$

-LL

V1

-- - -

GLABAL CLIMATOLOGY BRANCH MONTHLY SNOWFALLUSAFETAC IFROM DAILY OBSERVATTONS$

Alk WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFP Ny PERIOD OF RECORD: 56-87

TOTAL MONTHLY SNOWFALL IN INCHES-M-ON-T-H-S- ALL

TEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT Nov CEC MONTHS

............................................................................................................................56 *5.9 16.5 32.0 TRACE TRACE .0 .0 .0 .0 TRACE 3.0 22.2 079.157 13.2 1.2 5.9 1.0 TRACE .0 .0 .0 TRACE TRACE 1.7 1c.3 33.3

s5 28.2 17.8 10.9 .3 TRACE .0 .0 .0 .0 TRACE 11.9 15.0 83.6

59 23.4 31.6 11.5 TRACE TRACE .0 .0 .0 .0 .7 7.1 21.5 98.860 i1s. 23.9 10.3 1.1 .0 .0 *0 .0 .0 TRACE TRACE C.5 57.261 20.2 1.8 14°S 17.1 .0 .0 .0 .0 .0 TRACE 1.9 IC.8 65.862 5.3 19.6 12.5 3.9 .0 .0 .0 .0 .0 .2 5.0 9.9 56.463 13.1 12.3 21.6 1.0 2.9 .0 .0 .0 .0 .0 1.2 13.6 65.769 7.2 9.7 9.6 3.7 .0 .0 .0 .0 .0 TRACE 2.8 14.s 42.765 6.6 3.8 9.6 TRACE .0 .0 .0 .0 .0 1.0 9.3 9.2 24.566 22.3 12.2 2.5 1.2 .6 .0 .0 .O *0 TRACE 2.1 16.9 S9.367 14.5 7.7 2.2 .9 TRACE .0 .0 .0 .0 TRACE 1.7 7.3 39.368 11.3 7.9 10.7 .0 .0 .0 .0 .0 .0 TRACE 12.1 31.1 72.669 7.3 12.8 .9 9.O .0 .0 .0 .0 .0 1.8 3.3 35.0 69.670 5.7 15.2 6.0 9.9 TRACE .0 .0 .0 .0 TRACE .1 4F.9 80.871 11.1 26.7 38.7 6.2 .0 .0 .0 .0 .0 .0 19.2 12.5 109.972 13.3 95.3 12.9 1.0 .0 .0 .0 .0 .0 TRACE 9.7 31.6 113.673 51 10.8 .8 7.8 .0 .0 .0 .0 .0 .0 3.0 22.6 50.179 19.0 6.9 19.4 12.9 .0 .0 .0 .0 .0 TRACE 10.1 22.0 89.875 9.8 19.1 7.3 20.6 *0 .0 .0 .0 .0 TRACE 2.8 3.0 62.676 20.8 8.3 15.2 TRACE .0 .0 .0 .O .0 TRACE 2.0 3.6 50,177 19.2 10.2 12.9 .8 .0 .0 .0 .0 .0 TRACE 2.9 22.9 68.978 38.9 3.3 12.S 1.9 .0 .0 .0 .0 .0 .0 9.6 2C.1 81.379 26.S 3.9 .8 9.9 .0 .0 -0 .0 .0 .4 TRACE 1.7 38.280 1 0 5.9 1.:1 TRACE "O *0 a0 .0 .0 .0 3.5 1•0 39.581 7.3 2-5 5.3 1.3 .0 .0 .0 *0 .0 .0 .? 19.? 36,682 I 19.9 8.1 11.6 .6 .0 .0 .0 .0 .0 .0 TRACE 3.6 38.883 9.1 15.9 2.7 8.0 TRACE .0 .0 .0 .0 TRACE TRACE 9.1 99.889 I 12.6 20.9 1s.9 TRACE TRACE .0 .0 .0 .0 .0 7.3 25.3 81.5

85 19.3 10.3 13. 1.9 .0 .0 .0 .0 TRACE .0 9.2 1e.2 67.3.................................................................................................................................................

NOTE * EBASED ON LESS THAN FULL MNT1THS


LL

--.-. a-*_AIM. h.Ah .me-

GLOBAL CLIMATOLOGY BRANCH MONTHLY SNOWFALLUSAFEyAC *FROM DAILY OBSERVATIONStAIR WEATHER SERVICE/MAC

STATION NUMBER: 776225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 56-91

................................................................................................................................TOTAL MONTHLY SNOWFALL IN INCHES

-M-O-N-r.H.S- ALLYEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MONTHS

87 | 38.8 9.6 9.9 .5 TRACE .0 .0 *D .0 TRACE 8.5 7.C 69.3

MEAN 15 , 279 11.25 3.39 .11 .G0 .00 .00 TRACE |j3 9°'B 16.17 62.A1S.0 I 9.206 9.832 8.322 5.034 .520 *000 .000 .000 .000 .377 9.1-5 10.627 22-329

TOTAL OBS 978 909 992 960 992 960 99? 992 960 992 960 992 11674

NOTE A jBASEO ON LESS THAN FULL MONTHS1

0d&

GLI;BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SNOW DEPTHUSAFETAC FROM SUMMARY OF DAY DATAAIR WEATHER SERVICE/MaC

STATION NUMBER: 126225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 56-87

AMOUNTS IN INCHESI I I I I I 7 1 13 I 25 I 37 I 19

I 61 OVER I DAYSI TOTALI MONTHLY AMOUNTSI I I I I TO IO TO TO TO O I TO I WITH I

MONTH I NONE ITRACEI I 1 2 3 I 6 I 12 I 24 I 36 I 48 I 60 I 120 I 170 I MEAS I OBS II I I I I I I I I I t I I ANTS I I MEAN GREATEST LEASi

....................... . ........................................................................

JAN 1 9.2 1 7.11 6.2 1 9.41 7.61 18.6126.71 12.71 .b 83.7 9781FES 9.4 6.S1 8.6 17-11 7.61 16.2130.01 12,61 20 84.1 9041I I I I

MAR I 34.8 1 13.21 8.1 1 5.61 5.21 14.0113.31 4.41 .51 .8 1 1 1 52.0 1 9921I I II I I I I I I I IAPR 85.2 8.11 2.1 61 . 1.6 .31 67 96011 1 1 I 1 1 I IMAY 1100.0 1 1 1 1 1 3 9921

.JUN 1100.0 1 1 9601

JUL 1100.01 1 1 9921I I I I IAUG 1100.01 1 9921

I I I II I IS E P 1 1 0 0 .0 1 1 1 1 1 1 1 1 9 6 0 1I. I I I IIIOCT 199.31 .51 .. .1 . 9921

I I I INOv I 83.3 1 5.61 4.2 1 2.51 1.71 2.0O1 .71 1 I 1 1 11.01 9601I I 1 I I I

DE C 31.1 13.5112.8 7.91 4.41 12.9113.51 2.71 1.11 1 1 55.3 1 9921

ANN , 7,0 ,o ... .............................................................................................................ANN 1 71.0 1 14.51 3.7 1 2.81 2.31 5.41 7.01 2.11 .31 .1 1 1 1 1 241.4 1 116741

.; " ' ;, o, | , .;. . .; , , , ;; ; .. . . . .. .

[6

r" .L-.

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF SNOW DEPTHUSAFETAC IFROM DAILY OBSERVATIONSIAIR WEATHER SERVICE/MAC

STATION NUMBER: 7262Z5 STATION NAME: PLATTSBURGH AFB My PERIOD OF RECORD: 56-87

........ o........o................................o........................ee......................o.....e............o....

DAILY SNOW DEPTH IN INCHES-M-ON.T-H.S- ALL

YEAR 9 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV LEC MONTHS5E. I ' e S jS 1 0 0 O O 0 0 2 3 15

57 5 4 3 1 0 0 0 0 0 2 7 7sB 1l4 20 11 TRACE a 0 0 0 0 0 9 10 20s9 20 32 30 0 0 O 0 0 0 0 5 1N 3260 16 17 11 TRACE 0 0 0 0 0 0 0 4 1761 21 4 11 a 0 0 0 0 0 1 6 2162 8 12 8 5 0 0 0 0 0 TRACE 1 7 1263, 19 15 TRACE 0 0 0 0 0 0 0 6 1964 10 3 6 2 0 0 0 a 0 0 0 9 1065 N 3 2 0 0 0 0 0 0 1 2 2 N66 1t 1N 6 1 0 0 a 0 a 0 2 17 1767 19 16 7 0 a 0 0 0 0 0 2 7 1968 17 9 10 0 0 0 0 0 0 0 6 16 1769 l IZ 11 N 0 0 0 0 2 2 35 3570 28 19 17 2 0 0 0 0 0 0 TRACE 32 3271 22 28 N3 6 0 0 0 0 0 0 a 10 4372 11 34 23 1 0 0 0 0 0 0 5 13 IN73 S a 1 3 0 0 0 0 0 0 3 13 137. 11 1 8 11 0 0 0 0 0 C 9 11 1175 a 8 1N 0 0 0 0 0 0 2 7 IN76 IB 6 7 TRACE 0 0 0 0 0 TRACE 2 2 1877 12 10 6 1 0 0 0 a 0 0 2 12 1278 29 15 9 3 0 0 a 0 0 0 N 16 2979 12 10 N 2 0 0 0 0 TRACE TRACE 1 1280 1 3 ID 0 0 0 0 0 0 0 N B 1081 T N 2 0 0 0 a 0 0 0 TRACE a B82 10 12 10 TRACE a G 0 0 0 0 0 3 1283 7 11 1 2 0 0 0 0 a 0 TRACE N 1189 N 11 12 TRACE 0 0 0 a 0 0 7 13 13es a 10 10 3NT 0 O 0 0 0 0 2 9 10

NOTE * (BASED ON LESS THAN FULL MONTHS)

CONTINUED ON KEXT PAUE....

* L_

ILL

.... ,.. , .. niI . . -,a-. -,. 1

GLtBAL CLIMATOLOGY BRANCH EXTREME VALUES OF SNOW DEPTHUSAFETAC IFROM DAILY OBSERVATIONS)AIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAMES PLATTSBURGH AFB Ny PERIOD OF RECORD: 56-87

..................................................................................... .......................................DAILY SNOW DEPTH IN INCHES

-f-O.N. -H-S- ALLYEAR I JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV VEC MONTHS".. .............................. -i ...... .... ... ; ........................................................... .....

BA i b 1 3 0 0 0 1 3 16871 20 19 13 TRACE 0 0 0 0 a 0 3 4 20

..............................................................................................................................MEAN I 13.1 12.3 10.7 2.1 .D .0 .0 a0 .0 .1 3.0 9.8 17.7S.D. I 6.985 8.0' 8.507 3.222 -000 .OOD .000 .000 .000 .390 3.037

7.65B 9.350

TkTAL OBS 9 978 90' 992 960 992 960 992 992 960 992 960 992 11674................ ..........................................................................................................

NOTE * IBASED ON LESS THAN FULL MONTHS)

M L

• . _ .. l ... .. .. dll -. . .. _L

1rPPF A: 4 ".AA-~ 'A -PPRR -.TTIT .- . ..---- .

PIppppppp AAAA RkpF RRRPR TTYTTTT~TTT rcccLcc

pp Pp AA AA RR RR? IT cc cc

(.PPPPPPPPP AA AA RRRRR IT ccpppppppp AAAAAAAAAA RPRRRPRP IT ccPP AAAAAAAAAA nH RP IT cc

pp AA AA RR PR T cc ccPP AA AA WR RRT 77 crCCCCCCpp AA AA PR Rk IT CCCCCC

p

'_-z" l; ' 1A

SURFACE WIND SUMMARIES

XTREME VALUES OF PEAK WINDS!

DATA DERAVED FROM SUMMARY 3F IAY LATA.

VALUES PRESENTED KY INDIVIDUAL MONTH ARID YEAR WITH ALL YEARS COMBINED.

'PEEOS PRESENTED IN KNOTS.

C DIRECTIONS PRESENTED IN 16 COMPASS POINTS FROM AEGINNIMG OF PEPIOD OF PECU(l THkOUCH JUNE If,.COMMENCING JULY 1968 DIFCTIONS PRESENTED IN TENS OF orGDEES.

AN ASTERISK "*" IN THE TABLES INDICATES THAT THE VALUE I; RASED ON AN INEO'APLLTE MONTH OF THPLE OR HOSE

MISSING DAYS.

MEANS AND STANDARD DEVIATIONS PRESNTET DO NOT INCLUDE INCOMPLETE MONIiS. FOUR OR MORE MONTHS ARE NELTI) TO

COMPUIE THESE STATISTICS AND INCOMPLETF MONTHS ARE NOT INCLUDED.

TABLES ALSO INCLUDE THE OBSERVATION COUNTS.

LIVANIATE PERCENTAUE FREQUENCY TABULATIONS OF SURFACE WINUS:

CATA DERTAEE FROM HOURLY DATA.

PRESENTED ARE THE PERCENTAGE FREQUENCY OF WIND DIRFCTION TO I6 COMPASS PnINI, CALM AND VAQIABLE

VERSUS IND SPEED IN KNOTS IN INCREMENTS OF EAUrOoT CLASSIFICATIONS.

PERCENTAGES ARE SHOWN Ry BOTH DIRECTIONS AND SPEED. ANn TN ATOITION THE MEAN WIND STEED iS GIVNFOR EACH DIRECTION.

DATA PRESENTED 3Y THE STANDARO 3-HOUR TIME GROUPS PY MONTH. MONTHLY AN) ANNUALEy (ALL YEARS COMBINIDI.

A SEPARATE ANNUAL TABLE PRESENTS THE SAME BIVAPIATF DISTOILITITNS VITH IMPPST CEILING/VISIRILITYLIMITATIONS: WHEN VISIBILITIES ECUAL TC OR GREATER THAN 112 MILES, THE CEILINSS ARE 200 TO l4rD FEET 3NO/ON WI-ENTHE CEILING IS EQUAL TO OR nREATER THAN TO FEET, THE VISIPILITIES ARE 112 THROUDH 2

1 1Z MILES.

A PETCEPATAGE VALUE OF ".0" IN THESE TATLES INDICATES ONE OQ MORE OCCURRENCES AMOUNIING TO LESS THAE .3c%.

F

GLOBAL CLIMATOLOGY BRANCH EXTRENE VALUES OF SURFACE WINDSuSAFETAC (FROM DAILY OBSERVATIONSIAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STAIION NAME: PLA1ISBURGH AFB NY PERIOD OF RECORD: Sb-87

DAILY PEA% GUSTS IN KNOTS

3 -- O-N-?-H-S- ALLYEAR I JANI FEBi MARl APRA MAYA JUNI JULI AUG I SEPI OCTI NOVI VECI MONIHS

56 AA 3 I ASE *301 W $291 SSE 331 W 41 SSE 301 W 381 WSW*351S? S *301 V *361 UNW039 1 NW *4121 WSW*311 SW *371 WNW*323 NW *261 WSw*341 W 1411 SSE 331 S 311 NW *1258 1 WSW 351 WNW 361 WNW 391 WSW 341 WSW 391 WNW 351 WSW 331 W 301 SSE 291 WNW 421 sW 31 NW 291 WNW 4259 1 w 581 WSW 351 S 371 S 391 NW 321 NNW 331 w 391 NW 291 S 281 SSE 351 W :31 WW *361 W 5860 WNW 3141 WSW 361 N 30i SW 381 SSE 321 W *331 W 28A W 21. SSE 291 S 331 W I.1 NW 31 W 161 N 253 WSW 341 S 431 WSW 311 SSE 211 NNW 351 SE *321 NNW*Zsl SSE*291 WNW*301 SSW*3S1 WSW 331 S 4362 1 NW 0391 S 353 WNW 321 W 35 W 161 NNE 271 N 321 SE 291 NNE 291 WNW 401 NNW 331 WNW 421 W 4663 1 WSW 381 SW 401 SW 401 SW 521 NSW 371 W 0301NW 33 SW 391 NNW 381 NW 131 WNW 351 SSW 321 Sw 5264 1 W 381 mW 381 s 11 S 301 WSW 171 NNW 391 NW 36 WSW 321 W 151 SSE 311 WNW .71 S 351 WSW 4765 1 NW 1.1 ! 311 NW 311 SSE 311 W 311 WNW 311 NW 261 NNW 3*1 5 291 W 1 NW 'a8 SW %I1 NW :866 NW 481 u 451 6W .1. S 351 NNW 411 NW 311 NW 321 NW 301 SW 371 W 331 SW 331 S 361 NW 1867 1 SW 321 N 501 S 3.1 WSW 41l NNE 391 W 311 S 281 NW 261 S 391 S 351 WSW 381 W 1.31 N s068 1 NNW 41 W 41.l NNW 1.01 W 411 NW 291 S 361 201 1.21 271 331 17/ 261 31/ 281 1/ fill 271 361 W 1.

69 1 291 351 29/ 421 16/ 321 161 32 261 321 24.1 1.1 3S5 321 301 363 23/ 363 27/ 433 11/ %1 241 353 171 4870 18* 393 26/ 101 26/ 41. 281 .01 181 381 26/ 333 19/ 391 23/ 521 32/ 303 19/ 301 27/ 351 27/ 31 231 5271 1 27/ 4.| I/ 373 27/ 41 33 29 27/ 1 32/ 271 16/ 32 311 31. 27/ 401 17/ 341 Z0/ 341 27/ 44 27/ 14472 1 24/ 521 25/ 1 27/ 361 29/ 321 17/ 321 27/ 363 261 291 28/ 311 Z8/ 371 31/ 361 35/ 331 27/ 531 27/ 5373 33/ 1.01 31/ 311 27/ 351 322 313 26/1.01 20/ 31. 2/1.2 91 341 IT/ 323 271 391 30/ 383 27/ 41 2Sf 1271 23/ 531 24/ 103 18/ 421 25/ 323 33/ 441 25/ 351 30/ 321 23/ 253 27/ 301 35/ 32 36/ 361 31/ 303 23/ 5375 1 251 353 16/ 313 IS/ 351 26/ 1.83 32/ 323 16/ 281 17/ 421 17/ 261 141/ 301 15/ 281 27/ 411 20/ 381 26/ 1876 1 281 391 27/ 41 26/ 41 31/ 35 27/ 1.01 ZS/ 451 20/ 261 33/ 271 28/ 311 30/ 281 29/ 323 28/ 1 26/ 4777 1 261 371 17/ 401 31/1 33 31/ 181 17/ 301 251 301 331 371 27/ 371 19/ 303 33/ 131 30/ 373 301 133 31/ 4878 1 28/ 50 1/ 373 271 46 31/ 401 2?1 401 34/ 331 22, 181 IS/ 291 15/ 391 171 .01 221 391 30/ 133 281 S079 281 361 16/ 381 171 371 251 381 34/ 273 17/ 28 18/ 291 35/ 303 19/ 38| 24/ 32| 291 41 281 363 29/ 1.80 28/ .21 25/ 273 311 103 16/ 321 33/ 311 29/ 293 281 321 61 351 19/ 361 251 321 17/ 301 31/ 391 28/ 1281 26/ 341 271 1 28/ 1.03 27/ 1Ol 32/ 291 33/ 351 21 291 1I/ 211 31/ 311 181 321 17 293 311 331 2?/ 1.282 1 27/ 123 31/ 341 31.1 333 34/ 391 33/ 21. 171 271 291 313 331 163 19/ 301 351 351 26/ 361 3D/ 413 33/ 1683 I 17/ 321 I/ 313 18/ 331 281 103 16/ 31 351 303 2/ 323 35/ 381 171 341 231 331 31/ 301 29/ 1.5 29/ 4S

841 30/ 381 16/ 321 214/ 421 25/ 351 2%./ 361 2/ 323 28/ 233 16/ 211 31/ 321 33/ 331 18/ 31 18/ 321 21. 1285 1 32/ 311 26/ 131 32/ 341 32/ 371 31/ 251 281 281 30/ 263 17/ 251 35/ 281 201 321 18/ 281 301 361 26/ 1.3

NOTES * ERASED ON LESS THAN FULL MONTHS)S ERASED ON LESS THAN FULL MONTHS AND .100 KNOTSI

CONTINUED ON AEXT PAGE....

* L.

GLuBAL CLIMATOLOGY BRANCH EXTREME VALUES OF SURFACE WINDSUSAFETAC IFRO" DAILY OBSERVATIONS1AIR WEATHER SERVICE/mAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS Ny PERIOD OF RECORD: 56-87

............................................................................................................................DAILY PEAK GUSTS IN KNOTS

I .N-O-N-T-H-S- ALLYEAR I JANI FEBI MARl APRI MAYI JUNI JULI AUGI SEPI OCTI NoVI CECI MONTHS

86 | 2:/1 39/ 271 27/ 1.l 15/ 321 25/ 'Ol 281 1481 33/ 261 311 351 26/ 351 31/ 361 2?1 35 zTI 361 28/ /8871 26/ 50 35/ /9 18/ 361 Z9/ 351 30/ 291 11/ 281 311 261 3I' 281 301 Sol 19/ 30l 28, 291 161 311 261 50

MEAN 1 1.0.01 37.31I 38.51 37.01 314.81I 33.31 32.51 1.81 1.311 34.31 36.51 31;.1 4.6.S.D. I 7.6111 5.6521 9.8621 5.5681 6.2391 5.4811 6.0101 6.8011 .721 9.361 5.5131 S.4371 3..25

TOTAL OBS I 9311 8621 9.11 9181 961 9081 9701 9501 9291 97T1 941J 9751 11248

NOTES A IBASED ON LESS THAN FULL MONTHSI

S 1BASED ON LESS THAN FULL MONTHS AND #100 KNOTSI

Ads-

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SiEEOUSAFETAC FROM HOURLY oBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSRURGH AFB NY PERIOD OF RECORD: 78-V7

MONTH: JAN HOURS(1STI: 0000-0200...........................................................................................................................

WTD SPEED TN KNOTS

DIRECTION | 1-3 4-6 ?-10 11-16 17-21 22-27 28-33 34-4D 41-47 48-55 GE 56 T(TAL MEAN

(DEGREES) I t WINO

. 3. . . .................................................... 7.

NNE .6 1.2 .3 .1 2.3 S.C

NE .1 .8 .9 4.E

FNE .1 .1 .c

E .1 .1 3.L

ESE .1 .1 I.c

SE .i .2 .1 .1 .5 7.

SSE .3 .4 .9 1.4 .2 3.? 9.s

s 1.3 1.3 2.3 1.2 .2 .2 6.5 7.9

SSW 1.4 .4 .5 .3 2.' 5.C

SW 2.3 1.! .9 .3 .1 4..

WSW 1.2 1.2 1.3 .8 .2 4.A 7.2

W 2.2 2.4 2.3 1.8 .2 .1 8.9 7.s

WNW 2.6 2.5 2.0 .9 .4 8.4 .6

NW 2.3 1.6 2.0 .9 6.- 6.

NNW 1.9 Z.C 2.3 .8 7.0 3.3

VARIABLE I

TOTALS I 18.2 18.9 19.2 11.2 1.8 *Y 10 .0 4.e

...........................................................................................................................

TOIAL NUMBER OF OBSERVATIONS: 930

GL.BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO STEEDUSAFETAC FROM HOURLV OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFV NY PERIOD OF RECORD: 7e-87MONTH: JAN HOURSILSTI: D300-DS00

...............................................................................................................................................WIhD SPEED IN KNCTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 27-27 2P-33 34-40 41-VT 48-55 GE 56 TcTAL MEANIDEGREESI t WIND

................................. ............''*''N . ;;..... ;; ..... ;; ................................................................................. 7.

NNE .9 1.4 .3 . 2.7 4. b

N I .2 .1 .T b.7

ENE ..1 .2 1.1

L 1 .. C

ESE .I .. 2.L

SE .2 .6 .2 .1 1.7 5.4

SSE .3 .6 1.6 3.3 3.9 9.1

S 3.5 1.6 1.5 1.6 .5 .3 7.1 8.7

SSW .9 .B .3 .3 2.T .t

SW .9 1.t 1.0 .2 .1 3.1 6.;

WSW 1.2 1.4 1.0 .1 .2 T. 6 6.C

W 2.9 2.B 3.4 3.3 .1 8.I S.E

WNW I .5 2.7 2.2 .6 .3 7.3 6.5

NW 1.8 .2 1.7 3.b 6.3 7.i

NNW 2.4 2.2 1.9 .5 .3 7.T 6.3

.. . .. . . .. . . .. . . .. . . .. . . .. . . .. ..............................................................................................................VARIABLE I

TOTALS I 16.9 2C.8 1B.B lO.5 3.1 3 io0r.a . e

..............................................................................................................................................

TOTAL NUMBER OF OBSERVATIONS: 930

0__

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEfMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 76-81MONTH: JAN HOURS(LSTI: 0600-0800

...........................................................................................................................I WIND SPEED TN KNOTS

DIRECTION I 1-3 4.6 -10 11-16 17-21 22-27 28-33 34-4D 41-47 48-S5 GE 56 TCTAL MEAN(DEGREES) I W WIND...... ;.............1..........;........;........;........;........................................................;........;......

N I 1.7 4.2 3.9 2.2 .5 12.0 1.S

NNE 1.0 1.5 .8 3.2 4.6

NE .1 .3 .1 .5 S.c

ENE .3 .1 .4 2.

ESE

SE .3 .2 .1 .1 . 5 5.5

SSE .5 .6 .8 1.1 .5 3.5 9.1

S 2.0 2.4 1.1 1.9 .6 .3 8. 6.4

SSW 1.6 .9 .1 2.6 3.3

SW 1.0 1.2 .5 .4 3.1 5.7

WSW 1.0 1.6 1.4 .4 .1 4.5 6.6

W 3.2 2.6 3.0 .6 .3 Q.s 5.

WNW 1. 3 2.2 2.0 1.2 6.7 7.

N W 1.6 1.2 1.3 .9 .1 S.1 6.4

NNW 1.7

1.3 1.1 .6 .4 S. 6 .f

VARIABLE

TOTALS 17.0 20.2 t6.1 9.5 2.6 .4 100.11 4.

TOTAL NUMpER OF OBSERVATIONS: 930

min

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEU

USAFETAC FROM HOURLY OBSERVATIONS

Al. WEATHER SERVICE/MAC

STATION NUMPER: 126225 STAT ION NAME: PLAITSBuRbH AFB NY PEPIOD OF RECORD: 7A-87

MONTH: JAN HOUR71LST): 0900-1100

I WOD SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 29-33 34-40 41-47 4F-SS GE 56 TCTAL MEAN

IDEGREESI I t WIND

N I 1.6 3.2 11.0 2.7 .6 .7 12.4 6.6

NNE .9 1.9 1.5 .1 N.M 5.1

NE .8 .4 .4 .1 1.7 5.2

ENE .4 .5 1.7 3.E

E 1.0 . I.I 2.F

ISEC .] .1 .4 3.

SE .4 .2 .5 .1 1.3 .'

SSF .1 2.C 1.9 1.8 6.q 7E

S 3.7 3.4 1.3 1.9 1.6 .6 12.6 8,5

SSW .9 1 .6 .9 3. 3 5.C

S b .6 .5 1.3 .1 2.6 6.

WSW .8 .9 2.5 .9 .1 5. 1 P .

W l.S 2.0 3.3 .8 .5 R.2 7.5

WN W .6 1.7 3.0 1.6 7." 8.;

NW 1.1 1.C 1.4 1. .1 S.3 8.3

NNW 1.2 1.4 1.3 .6 .5 5.1 7.1

VARIABLEI

CALM //// I//////i//I / //d // I//m/ // ///// / //I// // 21.9 11/

TOTALS 1b.8 ;1.I 23.4 12.5 3.S .9 IU0.C 5.s


, = - . . . - .. ... _... ._ .. .... . ..... ... = . .. d I~ d-.,, . -

GLGBAL CLIMAICLOrY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEFD

uSmFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 72b225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87M4ONIN: JAN HOURSILSI): |200-1.O0

I WIND SPEED IN KNOTSDIRLCTION 1 1-1 4-6 7-10 11-16 17-21 22-21 28-33 39-0 oi-*? 48-55 GE 56 T(TAL MEAN

IDEbREES) I t wIND

N I .Z 3.8 3.7 2.2 1.? .1 10.1 9.5

NNE .9 3.C 2.0 .2 6.1 5.9

NE 1.6 3. .9 5.9 9.8

ENE 1.0 2.7 .3 4.0 4.7

E 1.1 1.4 .1 2.6 3.S

ESE 1.3 I.C .1 2.9 3.6

SE 1-3 1.9 2.2 .2 5.1 6.3

SSE 1.0 3.1 5.2 2.5 .5 12.8 8.i

.5 2.6 1.9 2.2 1.3 1.0 9.5 1i.'

55W .4 .5 .1 13 1.2 4. 5

SW .1 1.0 1.5 .6 .1 .1 3.4 9.3

WSW . .2 2.7 1.2 .1 4.3 9.b

W .3 1.6 3.7 1. .2 .1 7.3 8.8

WNU 1 1.3 3.0 2.0 .6 7.1 10.1

NN I I . 1.C 2.2 2.0 .2 S.5 1C.C

NNW .3 .4 1~ . I . 3. 1 l0 .,3

VARIABLE I

TOTALS 11.3 27.0 30.5 15.1 9.9 1.9 io0.0 7.9

IOTAL NUMBER OF OBSERVATIONS-: 930

A

TT -

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED

USAFETAC FRUM HOURLV OBSERVATIONSA1k WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATICK NAME: PLATTSBURGH AFB NY PERIOD OF PECORO: 78-87MONTH: JAN HOURSILSTI: 1500-1700

...........................................................................................................................WINO SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 1I-16 17-21 22-27 28-33 34-M0 4I-47 48-S5 GE 56 TCTAL MEAN

IDEGREES} WIND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .. ............... 3

N 2 1.6 3. 31 2.3 .8 11.6 8.C

PANE 2.8 3.7 1.5 .2 8.2 4.8

NE 2.2 1.6 .5 V.3 3.e

ENE 1 .7 .8 2.5 2.9

E .6 .8 .2 1.6 3.7

ESE I .2 .4 2.S

SE .I 1.2 .9 .3 2.A 6.M

SSE l.8 Z.3 1.5 1.6 .2 7.4 T.Z

S 2.0 2.5 3.M 2.0 .V .8 11.2 8.7

SSW .9 .8 .3 .1 2.C V.E

SW .1 1.1 1.0 .M .2 2.9 8.s

WSW .3 1.2 1.3 .6 .3 .1 3.9 9.1

A .9 s.t 3.M 1.8 .V .1 9.8 a.,

WNA .3 1.9 3.3 1.7 .2 7.0 9.C

NW .6 1.1 1.9 2.2 5.A .7

N NNW 1.3 1.7 1.5 1.q .2 6.1 7.6

VARIABLE I

CALM I,///I//I//I///II/IUIIIi//i/I////I/,/I#i/II/ 12.3 /f////

TOTALS I 18.2 27.1 29.0 IV.7 2.8 .9 .1 100.0 6.M

...........................................................................................................................


A-j

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY or OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND STEED


AT WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB

NY PERInD OF PECORD: T-87MONTH: JAN HOURS(LS1: 3800-20OO

WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE Sb TcTAL MEAN

IDEGREES) S WIND

3.3 5.3 3.5 2.0 .1 q.3 6.5

NNE .9 1.4 .3 2.6 4.3

NE .5 .5 .4 3.s 4.6

ENE .2 .3 .5 3.C

E .2 .1 .3 3.L

ESE . .2 .3 3.3

SE .1 .3 .1 .5 5.2

SSE 1.1 .4 .8 .9 .2 3.3 8.E

1.8 1.5 2.6 t.2 .8 .3 8.? 8.b

SSW 1.3 1.7 .8 . 3.9 S.

SW .6 1.7 1.5 .3 4.2 6.4

WSW 1.3 .6 1.9 1.1 .2 4.9 8.4

W 1.6 3.9 1.9 1.3 ,1 .2 9.1 7.C

WNW 1.9 1.9 2.S 1.4 .1 7.q 7.1

NW 1.8 1.8 1.9 1.5 7.1 6.7

NNW 2.4 1.5 1.3 1.6 .2 7.0 7.C

VARIABLE I

CALM j/j/III iI/I,,/IIII i/IIIIII/III.'//I..Ii,/,II/I/.I// iI//iI i / //IIiIII/,,II/ 24.4 /I/11/

TOTALS 1 jQ.0 23.3 19.6 11.3 1.8 .5 100.0 5.2


.. ..... .. . . . ddM,.m,,mn.. --' amllllmna~d L ll I I~k L ..mm~lm m

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED


AIR WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7P 7

MONTH: JAN HOURSILSTI: 2100-2300

WIND SPEED TN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-0 41-47 .8-55 GE 56 T(TAL MEAN

(DEGREESI I w WINC

..............................................................................................................................N I 1.9 3.9 3.' 1.A .3 1.K 7.3

NNE .6 1.0 . 2.0 4.A

NE .2 .1 .3 4.C

ENE .1 .1 .1 .3 S.C

E I.2 ; .c

ESE .I .1 j.C

SE .2 .2 .1 .5 4.6

SSE .3 .3 . .4 .1 I.q 0.4

.1 2.2 2.5 2.0 .V 8.2 R.,

SSW 1.3 .5 .3 .2 2.4 4.5

SW 1.4 1.V 1.2 .2 V.2 5.4

WSW 1.2 1.8 1.5 1.0 5.5 7.C

N 1.6 2.5 2.5 1.3 .3 8.2 7.2

WNN 3.0 2.V 2.9 1.0 .V .1 9.F 6.1

NW 2.0 1.8 1.7 1.3 6.9 6.5

NNW 2.4 1.5 1.6 1.5 .2 ?.2 7.C

.... °............-.-............--...........°..-............--..............--..-.°°.......-...-......-.....-.--.-....°..

VARIABLE

CALM 30.9 iu111111i/Ii/,/////iIiiIIII/III..//IiiIII/,/i/,I/,,/,,,,/,/////JI//////' 39.9 II/II

TOTALS 1 17.5 19.8 18.8 11.1 1.8 .1 100.0 V.e


*A

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENrE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: JAN HOURS4LSTI: ALL

...........................................................................................................................I WIND SPEED IN KNOTS

DIRECIION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 36 -60 61-7 48-55 GE 56 ICTAL MEAN4DEGREES) I % [ND

N 1.9 3.7 3.9 2.3 .5 .0 12.6 7.E

NNE 1.1 1.9 .9 .1 3.9 5.1

NE .7 .5 .3 .0 1.9 4.t

ENE .5 .6 .1 1.1 3.5

E .6 .3 .1 . 3.f

ESE .3 .2 .0 .5 3.2

SE ,* .6 .5 .1 1.6 6.1

SSE .8 1.3 1.6 1.6 .2 5. 8.,

5 1.7 2.2 2.1 1.8 .7 . 8.9 8.8

SSW 1.1 .9 .4 .1 .0 2.S 6.f

SW .9 1.? 1.1 .3 .1 .0 3.6 6.5

WSW .8 1.1 1.7 .8 .1 .0 .0 6.6 7.6

W I 1.8 2.6 2,7 1.3 .3 ,1 8.7 7.

WNW i.6 2.C 2.6 1.3 .3 .0 7.15 7.6

N I. I. 1.3 1.8 1.5 .1 6.1 7.

NNW 1.7 1.E 1.5 1.0 .3 .0 6.0 7.1

.............................................................................................................................VARIABLE

CALM 24.//IIII///j/I/'//I//,/I/I//i///,/u/.,/,/,/,/.',u,,,,, 26.3 III

TOTALS 16.9 22.3 21.3 12.1 2.6 .6 .0 100.0 5.5

...........................................................................................................................

TOTAL NUMBER Of OBSERVATIONS: 7460

A MN--- - ----- - - -h - mo- - -

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WIND DIRECTION VERSUS WINO SFEEDUSAFETAC FROM HOURLV OBSERVATIONSAIR WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: FEB HOURSILSTI: 0000-0200

..............................................................................................................................................IMIND SpEED IN KNOTS

DIRECTION I 1-3 N-b 7-ID 11-16 17-21 Z2-Z 24-3 3 SN-0 NI-N7 48-55 GE Sb ICTAL MEANIDEGREES1 I % WINb

N .7 1.8 2.6 1.5 .6 .1 7.3 9.3

NNE 1-2 . .5 .1 2.1 4.2

N .4 .8 .7 3.5

ENE .1 .1 4.1

E .1 .1 Z.c

ESE .3 .3 .7 5.5

SE . .7 .8 N.3

SSE l-l .7 .8 1.3 .6 .1 9.6 9.6

5 2.9 1.3 .9 1.3 .2 6.1 7.C

SSW 1-2 .9 .5 .1 .1 2.5 5.8

S6 a8 1.7 .6 .2 3.3 5.4

WSW 1.3 1.7 .8 .5 4.3 5.5

W 3.0 2.5 1.5 .2 .2 7.8 5.s

WNW 2.6 2.9 1.5 .8 7.3 5.4

NW 1.8 Z.O 3.3 1.8 .1 9.0 7.7

NNW .8 1.8 1.5 1.5 .N 5.7 8.e

.. . ...................................................................................VARIABLE I

CALM I / I fl I / I I / I 1,fl If I f., I/ / I I /,p / f i I f I I 1 37.6 illIl l1.6 III

TOTALS I 17.9 1s. c 8.8 9.5 2.1 7 100.0 4.3

.............................................................................................................................................


AlL__

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED* USAFETAC FROM HOURLY OBSERVATIONS



MONTH: FEP HOURSILSI): 0300-050D

..................................................................................................................................................I WIND SPEEDO N KNOTS

OIRECTION 1 1-3 8-6 7-1O 11-16 17-21 22-27 28-33 39-4 0 NI-7 48-55 GE 56 TCTAL MEAN

t IDEGREESI I t WIND...... k...............i........;........;........;........;........2................................................6........ ......

N 1.3 1.5 3.1 1.9 .2 .2 8.6 8.;

NNE .8 .6 .5 1.9 4.6

NE .2 .1 .1 .5 4.C

ENE .2 .2 2.[

E .1 .1 2.C

ESE .1 .1 .2 3.5

SE .N .6 .1 1.1 4.b

SSE .6 1.5 1.3 .9 .9 5.3 9.4

S $ 2.N 1.2 .7 .8 .N .2 5.7 7.1

SSW .9 .6 .1 .1 1.8 4.2

SW 1.8 .9 .N 3.1 3.7

WSW 1.3 1.8 .6 .1 3.1 5.1

w 1.5 3.3 2.6 .6 .2 8. 6.6

WNW 1.7 3.1 1.3 1.1 7.1 6.2

NW 1.2 1.5 3.0 .7 6.9 7.1

NNW .8 1.E 1.5 1.3 5.2 7.7

VARIABLE I

CALM I jjii, ii liI /j////I ///j/II/jI/ /1// U/I ////IUI/j// / / jI / j /I//iIIII/ U'/ // I/ N O.8 iIII

TOTALS I 15.N 18.N 15.6 7.6 1.8 .5 100.0 4.L


.A

• V

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS MIND SFEED


AIR MEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD Of RECORD: TA-8T

MONTH: FEB HOURSILST): 0600-0800

MIND SPEED IN KNCIS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-410 41-T 48-SS GE 56 T(TAL MEAN

IOEbREES) I % WIND

N 1.4 1.5 V.5 1.7 .9 9.5 S.

NNE .5 .9 .5 1.9 9.s

NE .6 .1 .7 3.5

ENE .2 .1 .4 7.L

E .1 .1 4.C

ESE .1 .1 .2 5.C

SE .1 .7 .1 .2 1.? 6.5

SSE .7 -5 1.1 .8 .1 3.2 P.1

S 2.1 2.9 .7 1.2 .1 .2 6.7 6.7

SSW 1.2 .S 1.7 2.6

SW .7 1.5 .2 2.5 4.e

WSW .S 1.2 .9 3.7 9.6

W 2.5 V. 1.5 .4 .R 9.9 5.1

WNW 1.5 3.9 1.5 .6 .2 7.3 6.1

NM I 2.0 1.9 1.7 .9 .V b.4 6.s

NNW 1.8 1.7 1.4 .7 5.6 C.0

VARIABLE I

CALM Iff fff/I/I/I If I/ ./If/III /// /I I I /I I I // I I I I / I I I I I // I Ii/I 1 0.2 1Ill/i

TOTALS I 16.8 20.9 14.3 6.7 .9 .6 100.0 3.e

TOIAL NUMBER OF OBSERVATIONS: A96

AOL *.- AL-

GLLBAL CLIMATOLOGY BRANCH PECCENIAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SEEDUSAFETAC FROM HOURLY OBSERVATIONSAlf WEATHER SERVICEIMAC

STATION NUMBER: 726Z25 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7S-87

MONTH: FEB HOURSILSTI: 0900-1100

I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-b 7-10 11-16 17-21 22-27 28-33 39-4c 91-97 48-55 GE 5b ItTAL MEAN

IOEGREESI I WINO

N 1.7 2.0 4.5 2.1 .2 .1 10.9 8.Q

NNE 1.9 1.2 1.5 .2 4.4 5.7

NE .4 2.1 .7 .1 3.3 5.7

EWE .9 .7 .4 2.0 4.4

E l. 1.1 .1 3.2 3.4

ESE .5 .6 .5 1.5 5.Z

SE 1.2 1.3 .1 .5 3.7 5.t

SSE I 2.3 3.3 9.0 2.1 .8 12.3 P.[

S 2.2 3.C 1.4 1.5 8.2 6.9

SSW .2 .2 .1 .6 5.4

SW .6 .2 .7 ,| .3 1.9 7.1

WSW .9 1.7 1.1 . .1 3.3 6.4

N .7 2.0 2.0 1.3 .2 6.3 8.1

WNW .7 3.2 2.5 1.5 .1 8.0 7.t

NW .9 .8 2.7 1.5 5.4 9.,

NNW .7 .9 2.1 .2 4.n ?.

VARIABLE I

CALM I 21.2 /i

TIALS I 15. 29.9 29.9 11.8 1.7 .1 100.0 5.6!

TOTAL N!MBER OF OBSERVATIONS: P96

*m

- GLIBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY piniOD OF RECORD: 7R-87

MONTH: FEB HOURS(LSTI: 1200-1400............... .............. ............... .............. .............. ............... .............. ..............

I WIND SPEEO IN KNOTS

OIQECTION I 1-3 4-6 7-10 11-16 17-21 22-21 28-33 SN-NO N-t7 48-55 GE 56 TCTAL MEAN

IDEGREES) I % WINU

....... ...........................................................................................................................N .9 1.5 3.2 2.6 .4 9.0 8.7

NNE .9 2.8 2.1 1.2 7.1 7.L

IN 1.5 3.8 3.0 .4 P.6 5.9

ENE 2.5 3.0 1.5 .2 T.2 5.[

E 1.8 5-8 .7 N.Y Ni

ESE .7 1.5 .2 2. 4.4

SE .7 2.2 1.9 1.2 6.3 7.4

SSE 1.3 2.6 6.1 6.1 .7 .2 17.1 17.1

S .6 1-5 1.2 .2 .2 .l .1 3.9 8,2

St I .1 .1 .2 .4 .9 10.4

WS .5 .. .5 1 2.7 9. 1

W .2 .8 2.8 1.1 .1 5.1 9.1

WNW f .5 .9 3.1 1.8 .2 6.5 9.3

kw .1 .2 2.8 1.2 .2 4.6 9.9

Nsw .2 .4 2.4 1.5 .4 3.8 1 .4

........................................... .... ..... ,....°......,.oo..o...o...o..o...... ..... ..................

VARIABLE I

CALM 6.j6/,jiIII/ j/fl//j/iIIII/I///////////i/ / // //i//I/////t/I/ 6.6 IIII

TOTALS I 12.3 28.3 31.4 18.4 2.4 .5 .1 11O.O 7,4


- - c ... aL.. - a Al -U

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE VREOUENCT Or OCCURRENCE Or SURFACE WINO DIRVOTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSFRVATIONSAIl; WEATHER SERVICE/MAC

STATION NUMBER: 126225 S TAT ION NAME : PLATTSBURGH AFB NY PERIOD Or RECORD: 7V-B7MONTH: fEe HOURSILSTI: 1500-1700

I WIND SPEED IN kNOtSDIRECTION I 1-3 4-b 710 Il-lb 11-21 22-21 ZA-Il 34-40 51-41 4B-55 GE S6 TCIAL MEANIOEGREESI % WINC

...............................................................................................................................Nk .1 1., 3.4 2.2 .5 .1 7. Ifl.c

NNEC 7.8 3.3 2.0 .2 8.4 5.1

NE I 3.1 3.9 2.1 .1 9.2 4.S

ENE I 1.5 2.4 1.4 5.1 5.1

E 1.9 2.c .2 ".1 I.E

ESE I .9 .7 .1 .1 2.7 3.6

SE I 1.5 1.8 1.B .2 5.3 5.6

SSE I .V 1.9 3.5 4.1 .2 10.6 9.4

S I .9 1.2 I e 1.1 .5 .2 6.3 9.5

SSWi .1 .1 .1 .1 .4 ?.c

Su 4 . .5 .2 .1 1.5 71.4

WSW I . .9 3.4 .4 3.2 I.L

A . 3.5 1.5 5.9 9. 3

WNW .4 1.2 1.2 1.8 .4 6.9 9.51

NW I .2 .5 3.3 3.B .4 7.9 :f0.8

NNW .5 .4 3.4 1.4 4.0 9.;

VARIABLEI

TOTALS I 16.5 22.1 30.0 18.1 1.8 .5 100.0 6.S

TOTAL NUMBER Or OBSERVATIONS: P46

GLUBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO0 SIEEDUSAFETAC FROM HOURLY OPSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 79-AlMONT14: FEB HOURSILSTI: 1RO!J-2000

I WINO SPEED TN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 21-33 34-40O 4I-4? 48-55 GE 56 TETAL MEAN4DEbBEES) % WIND

.............................................................................................................................................N I 2.7 3.7 2.7 2.2 .4 11.7 7.1

NNE I 1.3 2.C .8 .2 11. 5.1

NE 1 .2 .5 .4 2.) 1.S

ENE I.4 .4 4.3

E1 .1 5 .6 5.c

ESE I .2 .1 .1 . ~ 5.3

SE I .1 ..4 .7 1.? 6.S

SSE I .1 .5 1.A .7 .5 3.5 Io.L

S 1.7 3.2 1.9 1.1 .B .1 P.7 7.c

SSW I .9 .5 .2 1. 4 N 1

SW I .9 .6 .4 .41 2.2 5. s

WSW .8 1.4 1 .4 .5 4.31 6.37

W 2.8 2.6 2.0 .7 .1 .1 R.4 6.C

WNW 1. 33 3.? 1 .8 .6 6.9 5.11

NA W 2.0 1 .91 2.1 2.1 .4 7. 7.

NNW 1 .4 1.5 .7 .8 4.5 6.L

VARIABLEI

TOTALS I 3.7 22.F 37.0 9.3 2.1 .7 300.7 4.t

TOIAL NUMBER OF OBSERVATIONS: A46

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREGUENCY OF OCCURRNENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFErAC FROM HOURLY OBSERVATIONSA16 WEATHER SERVICE/MAC

STATION NUMBER: 72b225 STAI I Cf NAME : PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: FES HOURSILSTI: 2100-2300

I WIND SPEED IN KNOTSDIRLCIIOY4 1 1-3 4 -b 1-10 11-16 17-21 22-2 7 28-3 3 IN-NO NI-N? 48-55 GE 56 TCIAL MEANIDEGREES)I % WINU

N I 1.2 1 .7 2.0 2.6 .b 9.0 9. L

NNE I .6 .N .2 .1 1.3 4.9

NE .2 .2 .2 .7 5 .2

ENE .2 .1 .4 3.L

E I . .5 2.C

ESE I .1 .2 .1 .1 .6 6 . z

SE I N .2 .2 .1 . b . c

SSE I 7 .5 1 .5 1.2 .2 4. 1 q

S 1.B 2.C 1 .8 1 .1 .5 .1 7.2 7. 1

SSW. 7.1 .9 .13.2 .

SW 1-22 .9 .1 .4 2.6 ~ 4.6

US6 1.1 1.7 1.9 .9 .1 6.T 6.1

W 2.1 2.1 2.1 .8 7.2 6.LJN6 1.8 2.8 2.0 .9 7.6 6.4NI l I 1.8 .9 2.2 1 .8 .8 7.6 8.1

NNW 2.0 1.2 1.1 1.2 5.4 6.!

..............................................................................................................................VARIABLE I

TOTALS 1 18.1 16.0 15.6 11.2 2.4 .1 ICo.0 N.5

..................................... ...........................................


GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMPER: 726225 STATION NAME. PLATTSBURGH AFB NY PERIOD OF RECORD: 7A-87

MONTH: FEB HOURSILSTI: ALL


DIRECYION I 1-3 4-6 7-10 11-16 17-21 22-27 28-3! 3N-40 41-N7 48-55 GE 56 YCTAL MEAN

(DEGREESI t WINU...........................................................................................................................

N 1.3 1.€ 3.3 2.1 .4 .9 4.1 8.6

NNE 12 1.4 1.0 .3 3.9 5.5

NE .9 1.4 .8 .1 7.2 5.2

ENE .7 .9 .4 .0 2.0 4.

E .7 1.3 .1 2.1 N.(

USE .4 .4 .2 .0 1.1 4.5

SE .6 1.0 .7 .3 2.5 6,.

SSE .9 1.4 2.5 2.2 .5 .1 7.6 9.2

S1.8 2.0 1,.3 1° .1 3 1| 0 6.6 7 .5

SSW .9 .5 .2 .1 nO .0 1.6 4.6

SW ,8 tl .4 .2 .0 2.2 5.5

WSW .9 1.3 1.1 .4 .0 .0 1.8 6.3

w 1.6 2.3 2.3 .A .1 .0 7.2 6 .

WNW 1.3 2.5 2.1 1.1 .1 7.7 i.t

NW 1.2 1.2 2.6 1.7 .3 .0 7.) 8.5

NNW .4. 1.1 1.4 1.1 1 4.8F 7.f

VARIABLE

CAL" II1.,// 11.4 tIllf i I //// Illf / ////I // / 111ill J, //I/ /Iff/I // f 28.1 1////

TOTALS 16.2 21.4 20.5 11.6 1.9 .4 .0 100.0 5.1


0--MIS

GLI.BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD Or PECORD: 78-87MONTH: MAP HoURSILSTI$ 0000-0200

..........................................................................................................................

WIND SPEED TN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 29-3! 34-AC 41-47 8-AS GE S6 ICTAL MEAN(DEGREES) % WIND

NNE .5 .2 .6 1.4 5.

NE I * . .9 3.e

ENE I 4 . 3.6 3.2

E .6 .1 .F 2.4

ISE I .5 .2 .8 Z.7

4E .3 1.2 .6 .4 2.6 6.7

SSE 1.3 .C 5.7 2.2 .4 .1 6.7 9.1

S 2.) 1.f. 1.3 1.9 .3 7.2 7.6

SSW .9 1.2 .3 2.4 3.9

%W .9 1.2 .9 .1 3.n 5.3

WS 1.1 1.1 1.2 .4 .1 .9 6.!.

N 2.0 2.2 I.8 .3 6.3 5.4

WNW 2.5 3.2 2.3 1.9 9.9 6.9

NW I 2.0 1.9 3.0 1.2 .3 4.5 1.2

NNW .6 3.9 1.R 1.5 .1 8.0 7.k

......................................................................................................................................vArIABLE I

CALM ilo11 11/ I // /// ///// Z6.5 //i//

TOTALS 1 j7.7 22.C 19.2 12.6 1.5 ,1 )o0.0 SC

...........................................................................................................................................


0

GLCBAL CLIMATOLOGY BRANCH PEQCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WIND DIRECTION VERSUS WINO SFEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME: PLAITSBURGH AFB Ny PERIOD OF RECORD: 78-81

MONTH: MAR HOURSILSTI: 0300.OS00

WINO SPEED TN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEAN

IOEGREESI I ) WINO

N 1. 4.2 .7 2.6 .J2.9 7.$

NNE .9 .5 .2 1.6 3.S

NE .4 .2 .2 .9 4.q

ENE .1 .2 .2 .5 4.e

L .5 .2 .A 2.7

ESE I 2 .4 .6 3.5

SE .2 1.5 .9 .4 .1 3.1 7.I

SSE .4 1.2 1.9 1.8 .4 .2 6.0 10.3

i 1.9 .9 1.2 1.3 .2 5.5 7.!

55 1.6 I.C .1 2.7 3.3

S I .6 1.! .9 .4 3.2 6.2

WSW .4 1.3 .2 .2 2.2 5.6

I 1.2 3.C 2.3 .5 .1 7.1 6.4

WNA 1.3 3.2 1.7 1.1 7.3 6.7

NW 1.9 1.9 2.5 1.7 .3 8.4 7.7

NNW 1.9 2.7 l.F .9 .2 7.5 6.6

...........................................................................................................................VARIABiLE

CALM f f / f/ / i /,p I / I I 1 2 9.7 III

TOTALS 15.1 23.P ls.P 11.0 1.4 .3 IU0.0 4.s

................................................................................................................................

TOTAL NUMBER OF OBSERvATIONS: 930

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINU DIRECITON VERSUS WINO bFEEUUSAFETAC FROM HOURLY OBSERVATIONS

All WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS Ny PERIOD OF RECORD: 7P-87

MONTH: MAR HOURSELSTI: 0600-06OO

WIND SPEO IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-0 41-1? 48-55 GE 56 T(TAL MEANIDEGREES$ I T W]NU

...............................................................................................................................N 2.0 4.' 5.8 1*9 *2 14.5 7.'

NNE .3 1.4 1.1 .2 3.0 6.1

NE .1 .5 .1 ,8 4.7

ENE .1 .1 .1 .3 5.3

E .5 .1 .6 2.b

ESE .1 .3 .4 4.[

SE .6 .4 .4 .1 1l 2.7 6.E

SSE .8 .r 2.8 2.3 .4 .1 7.1 9.1

S 2.7 .9 1.4 1.1 .2 .1 6.3 6.7

SSW .9 .9 .6 .1 2.5 S.C

S .8 .5 .5 .1 1.9 5.2

WSW .3 1.4 1.0 .3 .1 3.1 7.2

W 1.6 2.3 2.2 .6 .1 6.8 6.6

WNW .9 1.' 2.2 1.5 .1 6.1 8,0

NW l.4 1.6 2.8 2.8 .3 8.9 9.C

"NNV 1.2 2.5 2.6 1.4 .2 7.8 7.5

.......--.-.-...................-......-..--.-°...............-'...............-.......°.°--°.......................°-.....

VARIABLE

TOTALS 14.3 19.7 23.5 12.S 1.7 ,1 IUO.O S.4

.-...........--....................-.-..-.-.........-....'.-.°-...........--..............-.-..-.°........°-...............


0L

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFEIAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME: PLATTSBUR6H AFB NY PERIOD OF PECORO: ?A-87MONTH: MAR HOURS(LSTI: 0900-1100

..........................................................................................................................

I WIND SPEED IN KNOTSDIRECTION I 1-3 1-6 7-10 11-16 17-21 22-27 28-33 36-ND 'l-AT 48-55 GE 56 T(TAL MEANIDEGREE S I % WIND

N 1. 2.6 6.8 6.6 .3 13.3 9.4

NNE .9 2.9 1.9 .6 6.1 6.1

NIE .9 1.5 1.6 .1 4.1 .E

ENE .9 1.5 1.1 3.6 5.2

L 1-2 2.6 .6 6.1 4.E

ESE .9 1.1 .1 2.' 3.6

SE 17 2.9 2.0 1.1 .2 8.1 b.7

SSE 1.9 2.6 5.6 3.9 .6 .3 .1 14.8 9.1

S 1.3 2.6 1.2 .9 .2 .1 6.0 6.S

SSW .2 .6 .2 .9 7.5

S I .3 .A .6 1 l.A 9.8

USA .2 .4 1.1 .2 1.9 7.;

A ,3 1.6 3.2 1.1 .1 .1 6.? 8.V

WNW .2 .6 2.7 2.2 . 5.9 10.2

NW .1 1.0 2.0 3.7 1.1 .1 A.0 11.7

NNW .1 .2 2.5 2.9 5.7 10.6

...........................................................................................................................VARIABLE I

CAL" I mi/III//II/I If# # / f /////If// 7.7 III

TOTALS | 11.7 23.5 31.5 21.8 2.9 .6 .1 lo0.0 7.6

............................................................................................................................................

TOTAL NUMBER OF ORSERVATIONS: 930

i

[-

* GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIN WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFS NY PEPIOD OF RECORD: 78-81MONTH: "AR HOURSILS11- 1209-140C

.............................................. eeeooe....................e .............ttew~.~.............et......t

WIND SPEED IN KNOTS


DOEGREESI W IND

N......................1...........3 1.0 30.1

NNE 1.1 LAq 2.7 .8 6.5 7.!

"E N1.6 4.4 2.8 .3 9.1 5.s

ENE I .8 2.4 1.8 .2 5.2 5.5

L 1.1 3.2 1.0 .1 5.4 5.1

ESE .6 1.0 .6 2.7 5.5

SE .9 1.6 2.5 3.2 .4 .1 8.7 9.t

SSE 1-2 1.9 4.6 6.6 2.3 .5 17.1 31.4

1.0 . .6 .5 .4 .2 3.2 9.s

SSW .i .3 .3 .2 1.0 7*3

s w .2 .4 .3 .1 1.3 ll.5

WSW .1 .1 1.2 .6 .1 2.7 10.5

I .5 1.3 2.4 .2 .2 4.6 11.6

WNW .6 1.9 43 .6 .1 7.6 12.1

N I .3 2.8 2.9 1.5 .1 7.6 12.7

NNW .2 2.3 2.5 .3 .1 5.4 11.7

VARIABLE

CALP // ///// // / /// // // / / 3.1 ///1//

TOTALS 9.0 20.3 31.0 29.0 6.2 1.4 .1 flO.0 9.3

..........................................................................................................................


0AL .

GL(BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAlk WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7i-87

MONTH: MAR HOURSILSTI: isa0-z700I N D SPEED IN KNOTS

DIRECTION 1 1-3 N-6 7-10 11-16 17-21 Z2-27 2A-33 34-ND Nl-N? 48-55 GE 56 TOTAL MEANtDEGREES) I % NINC

N 1.1 2.9 3.2 4.8 11.5 9.1

NNE 1.6 2.5 2.9 .6 7.6 b.5

NE 2.0 3.3 3.3 .2 8.9 5.E

ENE .1. 1.9 1.0 N.? 4.E

E I 2.c 1.9 .3 3.4 I .E

ISE 1.1 1.0 .9 .1 3.0 5.1

SE I .9 1.0 1.5 1.4 .6 7.6

SSE z.a 1.9 3.7 N.Y l.A o1 13.3 10.3

S .9 1.q 1.0 1.1 1.2 .4 5.R 10."

SSW .2 .2 .3 .1 ,' 6.4

SN .1 .4 .6 .5 .1 1.9 10.1

WSW .2 .9 .4 .6 .2 .1 2.0 10.s

N .9 2.5 2.2 .4 .1 6.0 10.L

WNW .1 .5 Z.5 2.9 .4 6.5 10.8

NW .1 .4 3.0 3.2 .8 .1 7.6 11.

NN .R .5 3.1 1.9 .1 6.5 9.E

.................................................................................................................................................VARIABLE

CALM I //I/II//// I//I/11111 If I I I III/u/I/// // /If///1// 4.9 /1//

TOTALS 13.2 21.1 30.2 24.6 4.9 1.0 100.0 8.,

................................................................................................................................................


,rne L

GLGBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-67MONTH: MAR HOURSELSTI: 1800-2000

................................ .............................................................................................................WINO pEEO IN ANOIS

DIRECTION I 1-3 8-6 7-10 11-16 17-21 27-21 28-33 38-80 1-7 88-55 bE 56 TCTAL MEAN

(DEGREES) I % wINE,

N 3.0 3.C 8.2 2.0 12.3 6.,

NNE .8 2.9 6 4.3 4.9

NE 1.1 .6 .3 2.0 4.3

ENE .6 .2 .1 1.1 3.c

E .8 .3 .1 1.2 3.5

ESE .5 .6 1.2 3.t

NE .5 1.8 1.0 .8 .1 3.8 6.E

SSE 1 ,2 I~ 1.9 1.6 .8 .1 7.1 8.5

S 1.6 1.7 1.0 1.8 .3 6.5 8.1

SSW 1.0 .9 1.8 3.5

Sb I .9 .6 .3 .2 .2 .3 2.3 6.t

WSW .9 1.5 .8 .9 1 4.1 7. I

S 1.5 1.7 2.2 .8 .2 6.3 7.C

WNW 1.8 7 - 1 .2 ,1 .1 q.3 6.e

NA 1.0 2.5 3.0 1.8 .2 9.1 7.7

NNW i.6 2.8 2.6 .9 .1 7.5 6.9

.............................................................................................................................................VARIABLE

CALM l/2//4 ///III///////////////i/////I/////////////////////.// // I/// 22.4 ////If

TOTALS I 18.7 4.1 20.6 11.5 1.7 .3 100.1 5.3

............................................................................................................ .................................


-*" " '-- - - . . ,- i i ,,---. ,.- ., - ... . .. .

GLOBAL cLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEOUSAFETAC FROM HOURLY OBSFRVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME : PLATTSBURGH AFB NY PERIOD OF RECORD: 78-B7

M NIH: MAP HOURSELSTI: 2100-2300

WIND SPEED IN KNOTSDIRECTION 1-3 4-6 7-10 11-16 17-21 22-27 28-33 30-N0 01-07 8-55 GE 56 TCFAL MEAN

IDEGREES) I % WIND

...............................................................................................................................N 1.7 3.9 t.2 3.1 .1 9.? 7.5

NNE .8 .3 .1 1.2 3.5

NE .6 .3 1 2.6

ENE .3 .1 .1 .5 3.6

E .1 .1 .? 3.c

ESE .5 .2 .0 1.2 5.c

SE .5 .P .9 .3 .2 2.7 7.0

SSE .0 .9 3.S 3.6 .9 .2 5.5 11.c

s 2.0 1.5 1.2 2.0 .1 b.9 7.3

5SW 1.6 I.c .5 3.1 3.9

SW .9 1.2 .6 2.6 5.!

VSW 1.3

2.C 1.3 .3 .1 5.1 6.5

W 1.2 2.3 2.0 .8 .1 6.7 7.L

WNW I 1. 3.1 3.1 .9 .5 9.0 7.0

N W 2.6 2.2 2.5 1.0 .1 8.7 6.6

NNW 1.2 3.7 2.7 1.3 01 8.7 6.5

VARIABLE

CAL" 28.0 lfllfl/j/I/I j//II iii/I////II/////i/I/II i////j//////////I///////////i/////I//i/// 28.1 1IIIII

TOTALS 7.3 21.3 21.5 9.7 2.3 .2 100.0 5.[


AI-AK

GL I.BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 S TAT ION NAME : PLATTSBURGH AFR NY PERIOD Or RECORD: TB-A?MONTH: MAR HOURS(LSTI: ALL

I WINO SPEED IN 34NCTSDIRECTION 1 1-3 14-6 7-10 11-16 17-21 22-27 28-33 34-140 41-IT 48-55 GE 56 TOJAL MEANIOEGREES)Ig I WIND

..............................................................................................................................N I 1.5 2-6 4.3 3.0 .2 11.8 a.;

NNE I .8 1.6 1.3 .3 4.0 6.E

NE I .9 1.4 1.0 .1 3.4 5.

ENE I .6 .8 .6 .0 2.0 5.c

E I .9 I.E .2 .0 2.13 . 2

ESE I .6 .6 .3 .0 1.4 4.5

SE .7 I .5 1.2 3.0 .1 .0 4.5 7.b

SSE I 1.0 1.5 3.0 3.1 .9 .2 .0 9.7 10.1

5 1 .1 1.3 1.1 1.3 .4 .1 S.9 7.r

SSW I .8 .7 .3 .1 1 .9 4.

SW I 5 .7 .6 .3 .0 .0 .0 2.2 6.s

WSW .6 1.3 .9 .5 .1 .0 3.1 7.i

W 1.0 1.8 2.2 1.1 .2 .1 6.3 7.8

WNW I .0 1.9 2.4 2.0 .3 .0 7.6 8.4

NA I I 1.5 2.7 2.3 .6 .0 R.2 9.2

NNW .9 2.0 2.4 3.6 .1 .0 1 P.1

VARIABLEI

TOTALS 1 181.6 22.C 24.6 16.6 2.8 .5 .0 100.0 6.4

TOTAL NUMPER Of OBSERVATIONS: 7440

AL-A. ~ -~-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED

USAFETAC FROM HOURLY oBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 126225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: TA-A7MONTH: APR HOURS(LSTI: 0000-0200

I WIND SPEED TN KNOTSDIRECTION t 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-4

0 41-VT 48-55 GE 56 TCTAL MEAN

IDEGREES) I WIND.*.....................................*....-.........*o*..........-..o-..o....-.* .. -*.. *-. '....--...°........-

N 1.V 2.' 5.2 2.7 .2 11.9 8.2

NNE .2 .3 .2 .2 1.0 6.6

NE .1 .1 .2 3.c

ENE

E .1 .2 .3 3.C

ESE .3 .2 .1 .7 3.b

SE .7 -6 .7 .2 2.1 5.6

SSE 1.1 1.9 1.3 1.9 .1 6.3 7.i

S 3.4 2.V .9 1.1 7.9 5.4

SSW 2.3 1.c .1 3.4 2.8

$k 1.0 .7 .6 .6 2.8 5.8

WSW 1-2 1.7 .8 .T V.3 5.

W 1. 1.7 1.8 .9 5. 1.c

WNW 1.0 1.7 1.2 .2 5.3 5.L

NA 2.3 3.1 2.9 .9 .2 9.4 6.3

NN v 1-3 2.4 2.9 Z.3 .2 9.2 P.I

VAR TABLE I

CALM / // /// 29.9 i/I

TOTALS I 18.1 20.3 18.7 11.1 .8 100.0 V.6


Alk-- --A M

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Or OCCURRENCE Or SURFACE WIND DIRECTION VERSUS WINO SPEEDUSAFEIACrROM HCURLY OBSERVATIONS

AlR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH APR Ny PERIOD Of RECORD: 7B-87MONTH: APR HOURS3LSII: 0300-05DQ

I WIND SPEED IN KNCISDIRECTION I 1-3 40-6 71 11-16 17-21 22-27 2 -33 IN-4O 41-47 48-55 GE 56 TEIAL MEANIDEGREESI % WIND

..............................................................................................................................N I 7 2.7 5.3 2.3 .2 11.2 8.5

NNE I . .6 .3 1.2 4.6b

N E I .3 .1 .1 .6 3.

ENE I .6 .6 2.c

E 4 3.1 .

ESE I .2 .1 13 .4 4.5

SE I .4 .9 .9 .2 2.4. 6.8

SSE I 1.4 1.4 2.0 3.0 .4 8.3 9.j

S I 3.2 1.2 .6 .6 .2 5.8 4.e

SSW I .3 1.32 .7 3.0 4.4

SW I .7 1.1 .3 .1 3.2 4.Z

WSW I .8 .9 1.3 .6 3.6 6 .5-

W I .I 1.9 1.3 .7 .1 6.1 6.C2

WNW 2.1 2.1 1.3 .3 5.9 5.1

Nw 1 .4 2.A 1.2 3.7 .2 .1 7.4 3.6

NN4W I 3.8 3.2 3.9 1.6 .2 10.? 7.4

VARIABLEI

TOTALS 18l.4 20.1 39.4 33.30 3.4 .1 200.0 4.e

TOTAL NUMBER Or OBSERVATIONS: 900

GLIBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB My PERIOD OF RECORD: 78-87

MONTH: APR HOuRS(LSTi: 0600-0800

I WIhD SPEED IN KNOTS

DIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-21 28-33 34-ND 41-47 48-55 GE 56 TOTAL MEAN

IDEGREESI i % WIND

k 1.0 4.C 6.0 2.6 13.6 7.s

NNE .4 .9 1.3 .1 2.8 6.5

NE .1 .6 .2 .9 4.S

ENE .4 .2 .7 3.

E .2 .6 .8 3.7

ESE 3.1 .6 .1 l.A 3.4

SE 1 .6 2.1 .8 .3 .2 S.0 5.5

SSE 3.7 2.1 1.8 2.3 .6 .2 8.7 8.7

S 3.1 2.C 2.2 2.1 .6 10.0 7.6

SSW .9 .7 .6 2.1 4.6

Sk .7 .7 .8 .2 2.3 C.3

WSW .4 .8 1.2 .3 .1 2.q 7.9

A .4 1.4 1.7 .7 .2 4.4 7.7

WNW 1.2 2.C 2.1 .4 .1 5.9 b.6

NW 1.0 2.' 1.7 1.6 .9 .1 7.6 9.4

NNQ 1 .2 2.2 14. 3 1.8 9.6 7.8

VARIABLE I

TOTALS I 15.6 23.1 24.8 12.4 2.7 .3 100.0 S.9


GL0BAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SF-EEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFS NY PEPIOD OF PECORO: 7P-87

MONTH: APR HOURS(LS1): 0900-1100

I WIND SPEED IN KNOTSDIRECTION I 1-3 8-6 7-1O 11-16 17-21 22-27 2A-33 34-40 NI-N7 48-55 GE 56 TOTAL MEAN

IDEGREESI I % WIND

.6 2.C 8.8 4.3 .3 12.2 9.;

NNE 1.0 1.1 2.0 1.2 5.3 7.5

NE .9 2.2 2.7 .8 6.? 6.6

ENE 1.8 2.6 1.1 5.1 4.e

E 2.1 3.8 1.2 7.1 4.7

ESE .4 1.9 .7 3. 5.3

SE I .1 2.8 3.6 1.9 .1 9.4 7.F

SSE 1.1 2.! 8.8 4.8 1.7 .3 15.? 1.)

S .6 1.6 1.3 1.2 1.0 .2 5.9 1 .3

SSW .6 .6 .1 .3 1.6 6.i

Sw I .2 .4 .7 .4 1.4 8.1

WSA i .I . .9 .8 .6 2.9 11.5

W .2 .7 1.9 1.1 .4 4.1 10.4

WNW f 3 2.1 1.7 . 4.6 1 1.

NW .2 .2 2.4 3.1 .7 .7 6.9 11.S

NNb .2 1.C 1.6 2.8 .2 5.7 10.

VARIABLE I

TOTALS I 0.S 23.( 31.8 24.1 5.2 .9 100.0 8.6

..........................................................................................................................

TO 1AL NUMBER Of OBSERVATIONS: 00

AIL-._

LILBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

USAFETAC FROM HOURLY OBSERVATIONSAIG WEATHER SERVICE/MAC

STATION NUMBER: 126225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7P-87

MONTH: AFR HOURS(LSTI: 120-IO0

I wIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 NI-N7 46-55 GE 56 CTTAL MLAN

IDEGREESI I W VINU

. .. . . . . . . .. .. . . .. . .. . .. . . . . .. . .. . . . . . . . . . ..N 2 1.7 3* 3.2 .7 A.V IC.

NNE .4 2.2 2.7 1.1 6.4 7.8

NE .3 2.7 3.3 1.4 7.8 7.8

ENE .6 2.0 2.7 .6 5.9 6.5

E 1.6 3.3 2.2 .1 7.? 5.5

ESE .9 2.6 1.4 4.9 5.E

SE .7 2.3 4.2 2.6 9.8 p. 6

SSE .6 2.2 4.7 5.6 2.0 .2 1S.2 11.2

s .4 .9 .7 1.6 1.0 .6 5.1 12.6

5SW •1 .2 .5 12.7

SW .8 .1 ,1 1.? 15.3

WSW .2 .2 .2 1.4 2.1 11.3

.3 .4 1.3 2.2 .6 4.9 l1.!

WNW .2 .2 2.9 2.4 .2 6.I I).E

NW .2 .4 2.0 2.6 .7 .1 6.9 11.7

NNW .1 .2 2.2 2.8 .8 .3 6.4 12.5

,,, . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .................ooj ' .. ' . . •'.. . .. .

VARIABLE I

CALM |/// /// / //// / //// // / // // // / 2.2 1////1

TOTALS I 6.8 21.4 33.7 28.6 6.0 1.3 107.0 9.4

A

TOIAL NuHREP OF OBSERVATIONS. 900

... . . •, . . . I .

. . . ., . . . . .... . . . -. . . . . . _ W . . . .

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFEIAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87

MONTH: AFR HOURSILS71: 1503-1700

I WIND SPEED IN KNOTSDIRECTION I 1-3 -6 7-10 11-16 17-21 22-27 28-33 34-4O 41-47 4A-55 GE 56 T(TAL MEANIDEGREESI i N WINO

N I 10 .R .8 .2 ... . .. .. .. .. . . . .. . . .. .. . . .. 19.0 . ..9.9

NNE .4 3.8 3.2 .8 .1 8.3 7.2

NE 1.3 4.1 3.0 .7 9.1 f.2

ENE 1.3 2.7 1.7 5.4 S.]

L 1.4 3.4 .9 .1 5.9 9.7

ESE I 1.2 2.C .6 3.8 4.b

SF .6 2.3 3.2 .8 .2 7.1 7.7

SSE .4 2.2 4.1 3.6 2.1 .1 12.6 11.!

S .4 .9 1.1 1.3 .6 .1 4.4 I.[

SSW .3 .1 .6 1.7 ID.4

SW .2 .2 1.2 1.7 11.6

WSW .8 1.0 .6 .2 2.6 14.2

W .3 1.0 2.2 1. .6 , 5.7 1.4

WNW .2 .6 2.1 2.1 ,4 5.4 10.8

NW .1 .6 1.6 3.3 1.1 .1 6. 12.c

NNW .1 .9 2.1 9.2 .9 .1 7.4 11.8

VARIABLE I

TOT ALS I 8.8 26., 29.7 25.3 6.2 .8 .1 100.0 9.F

IOTAL NUMPER OF OBSERVATIONS: 90O

GL.BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

USAETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87

MONTH: APR HOURS(LSI): 1800-2000

IWIND SPEO IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-4O 41-47 48-55 GE 56 ILTAL MEANIDEGREESI I W MIND

N I 2.2 2.p 6.2 2.1 .1 13.4 7.7

NNE 1.9 2.1 :.4 .1 5.6 S.C

NE 1.1 2.1 .2 3.4 4.z

ENE 1.0 .6 .1 1.7 3.i

E .9 .7 .1 1.? 3.3

ESE .4 .6 .2 1.2 4.6

SE .7 1.0 .9 .7 3.2 7.3

SSE 1.2 2.6 2.8 1.9 .2 P.? 8.c

S 1.8 1.9 .9 .9 .3 .1 5.9 7.C

SSW .8 .p .2 .3 1.9 5.5

SW 1.0 .6 .8 .1 2.4 5.c

WSM .4 .7 1.6 .9 3.6 6.4

W l.4 1.9 2.6 1.1 .2 7.2 7.i

WNW .8 1.7 1.8 1.0 .1 5.3 7.2

NW .8 1.9 2.2 1.6 .4 6.9 8.4

NNM .8 1.9 3.6 2.3 .3 .1 9.0 9.1

VARIABLE I

CALM /// 18.9 /////1

TOTALS 17.2 23.1 25.6 13.0 1.8 .2 100.0 5.8

TOTAL NUMBER OF CRSERVATIONS: 900

AS_

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFECDUSAFETAC FROM HOURLY OBSFRVATIONS

Fl AIR WEATHER SERVICEIMAC

STATION NUMBER: 7262Z5 STATION NAME: PLAITSBURGH Are NY PERIOD Or RECORO: 78-87MONTH: APR HOURSILSII: 2100-2300

................................................................................................................................................I WINO SPEED IN KNOTS

DIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 31-40 41-47 48-S5 GE 56 TcTAL MLAN

I IDEGREESP I % WINE

N 1.6 3.C 8.2 1.3 .6 .1 10.8 1.v

NNE . .3 .8 .2 1.8 bb

NE .1 .8 .A 3.4

ENE

E .3 .2 .6 3.r

ESE .1 .7 .1 .9 5.4

SE .7 .4 .7 .1 .1 2.n 6.6

SSE .8 2.3 1.8 2.1 .4 .1 7.6 9-2

s 2.4 1.6 .9 .9 5.8 5.4

SSW ,. I.C .3 .1 2.3 8.6

St 1.7 1.1 .9 3.7 4.6

WSW .8 1.1 .8 .4 .1 3.6 6.6

W 1.3 3.C 1.9 .7 6.9 6.C

WNW 1.8 2.9 1.7 .6 .1 7.'r 5.s

NW 2.6 3.e 2.8 1.6 -1 9.7 6.7

NNW I .7 3.1 3.0 1.6 .1 9.4 7.1

VARIABLE

CALM T 27.! 3 /I/

TOALS I 17.3 24.C 19.! 9.7 1.3 .8 100.0 8.6


*AM

I

GL(,BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-A7

MONTH: APR HOURSILST): ALL

I lWIhD SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 ICTAL MEAN

IDEGREESI I % WIND............. o...o...............e........................................... ....................... o....................

N 1.1 2.5 4.7 2.8 .3 .0 11.5 8.6

"NE .7 1.4 1.5 .5 .0 4.1 6.E

RE .6 1.5 1.2 .3 3.6 6.

ENE .6 1.C .7 .1 2.8 5.3

E .8 1.5 .6 .0 3.0 4.7

ESE .6 1.1 .8 .0 2.1 8.1.

SE 1 .8 1.6 1.9 .8 .1 .0 5.1 7.5

SSE 3.0 2.1 2.9 3.1 .9 .1 .0 10. 9.,

S I 1.9 1.6 1 .1 1.2* 5 .1 6.3 7.6

SS 3 .8 .6 .3 .2 2.' S.c

SW I .8 .5 . .0 .0 2.4 6.6

WSW .5 .8 .9 .8 .2 .0 3.2 8.6

W .9 1.5 1.8 1.1 .3 .0 5.6 a.E

WNW 1.0 1.8 1.9 1.1 .2 .0 5.6 7.8

NW 1.1 1.8 2.1 2.0 .5 .1 7.6 9.c

NNW .9 1 . 2.9 2.8 .3 .1 8.8 9.C

°.°,,°°°°oo°°;,......,.°,,....,,o.o....,,,,......,.,.-........,......,,..,........ ....... ......... ,...,....... ..,.,....

VARIABLE

CALP h//j/////I/j //II///I////I///////////J///////////////// ////U///////// 16.9 //I/I

TOTALS 18.2 22.- 25.8 17.0 3.2 .5 .0 100.0 6.(

IOTAL NUMBER OF OBSERVATIONS: 7200

AL- - ------ ~-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEODUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PEQIOD OF RECORD: 78-87

MONTH: MAY HOURSILSI): 0000-0200

WIND SPEOD TN KNOTS

OIRECTION O 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-60 61-7 48-55 GE 56 T(TAL MEAN

IDEGREES) I % WINO

N 1.3 6.1 2.3 .2 7.8 5.1

NNE .3 . .4 1.6 5.6

kE .6 .2 .9 2.c

ENE .1 .1 .1 .3 7.3

E .2 .3 .S 3.2

ESE .1 .3 .4 6.3

SE .4 1.2 . .2 S. 1.b

SSE 1.9 1.8 1.9 1.6 7.3 6.9

S 4.0 3.5 1.8 1.0 il.3 5.2

SSW 2.4 1.6 .1 .1 6.0 3.4

SW ,a 1.2 .2 .2 2.4 4.7

WSW S.6 2.6 1.0 .5 5.5 5.7

W 1.7 1.9 2.4 .1 6.1 5.5

WNW 2.2 2.C .6 .1 .9 4 .

NOW 1.6 2.8 1.7 .3 6.5 5.8

NNW 1.0 2.6 1.7 .6 5.9 6.2

..............................................................................................................................................VARIABLE I

I.ICALM /I i / i., I f I I I f / I I/ f 33.4 11ill 33.6 I/IlII

TOTALS I 19.9 26.5 15.1 5.2 100.0 3.t

..............................................................................................................................................


-

GLCBAL CLIMATOL06Y BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WI4O DIRECTION VERSUS WIND SFEEDUSAFETAC FROM H4OURLY OBSERVATIONSAIR WEATHER S!RVICEIMAC

STATION NUMBER: 126225 STATION NAME: PLATTSBURGH AfB NY PERIOD Or RECORD: 78-ATMONTH: MAY MOURSILSTI: 0300-0500

I WIND SPEED IN KNOTSDIRECTION I 1-3 41-b 7-10 11-16 17-21 22-2? 29-33 IN-4O %1-($? 48-S5 GE 56 ICTAL MEANIOEGREES) % WIND

N I 1.7 3.41 3.9 1.1 10.1 6.6

NNE .4 .9 .4 1.7 5.i

NE I .2 .1 .1 .4 3.e

ENE I

E . .2 . 1. 5.5

ESE I .1 .3 .4 4.8

SE I .6 R8 1.3 .1 2.R 6.1

SSE 1.5 2.4 2.6 1.3 .1 7.8 7.1

S f 4.0 2.! 1.1 .9 8.2 4.8

SSW 2.3 .9; .1 3.7 7.4

SW 1 .3 1.0j .4 .1 2.8 4l.8

WSW f 1.7 1.4 .5 .4 .1 4.2 S.!

W 1.3 2.6 1.3 .1 4.3 5.2

WNW 1.B 1.6 .4 3.0 4.c

NW I .9 2 . 1 .3 .3 5.93 S.2

NNW I 1.0 3.1 2 .4 .2 6.7 6. E

VARIABLE

TOTALS I 20.1 23. 1 1S.9 4.6 .2100.0 3*1

........................ ............ ............................................

T01AL NUMBER Or OBSERVATIONS: 930

A- AMR-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRECUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS

AIk WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-8?

MONTH: MAY HOURSILSTI: 0600-0800

I WINO SPEED TN KNOTS

DIRECTION I 1-3 91b 7-10 11-16 17-21 22-27 28-33 34-4o 11-7 NB-S5 GE Sb TOTAL MEAN

IDEGREESI I % WIND

N I 1.4 N.c 9.9 2.0 12.9 7.5

NNE .8 1.9 1.5 .2 3.9 6.2

NE .3 .9 .1 .1 1.9 5.3

ENE .3 .5 .1 1.0 4.1

E I 1.2 .2 1.9 2.9

ESE 1.00 .5 .9 2.4 3.b

SE 2.0 2.3 1.3 .8 6.3 5.7

SSE 2.6 4- 9.2 1.3 12.8 6.4

S 5.2 3.5 2.0 .9 11.6 4.9

SSW 1.6 .9 2.5 3.

SW 1.2 .6 .3 .4 .1 2.7 6.C

WSW ,S .s 1.2 .3 2.6 7.1

A .6 1.4 1.6 .5 .1 4.3 T.1

WNW .3 1.2 1.7 .3 .1 3.7 7.7

NW .6 1.0 1.9 1.5 .1 5.2 8.6

NNW .3 1.2 2.2 1.3 N.Y 8.4

VARIABLE I

CALM / 21.1 i"i1l

TOTALS I 20.9 29.P 23.5 9.7 .4 100.3 5.L


.. . . ,. -,, a

.... . ........A -. . ,-,,- -.- .. ,l u. .. ... ,

- - .. 'w-~.

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSA FETAC FROM HOURLY OBSERVATIONSAll; WEATHER SERVICE/MAC

STATION NUMBER: 126225 STATICN NAME; PLATTSBURGH4 AFB MY PERIOD OF RECORD: 7B-87MONTH: MAY HOURS(LS11: 0900-1100

.............................................................................................................................I WIhD SPEED IN XNCTS

DIRECTION I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 341--c 41-87 48-SS GE S6 TETAL MEANIDE6REES) % WIND

N I .8 2.q 8.2 1.8 8.7 V.1

NNE I .6 2.6 2.6 .8 6.6 7.E

NE I 1.1 2.9 2.7 .2 6.9 6.1

ENE I .A 1.8 1.5 .2 3.9 6.1

E I 2.8 3.7 1.1 7.5 44

ESE I 1.2 2.C .8 4.0 S.E

SE I .9 3.1 5.1 8.5 .3 14.4 8.9

SSE I 1.6 3.C 5.1 7.8 .6 .119.3 9.6

S 1 .1 2.6 1.9 1.1 6.7 6.E

SSW .2 .1 .T 6.3

SW I .2 .1 .6 .3 1.T3 8.!

WSW .1 .3 1.0 .6 .2 2.2 S.9

W .2 I.E 1.7 1.5 4.4 9.2

WNW .2 .2 1.5 1.2 .1 .1 3.3 10.8'

NW I .2 .5 1.5 2.9 .2 4.4 10.E

NNW .2 .5 1.7 1.7 .1 4.9 10.2

VARIABLEI

CALM I 'jjI/IjIj/II/,~/I//I/lI////////I//I////I~~~/ 2.9 11111-

TOTALS I 12.2 26.c 32.9 23.9 2.5 .2 200.0 7.S


m. --

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFB NY PERIOD OF PECORD: 78-87MONTH: MAY HOURSILSI: 1200-1400

..............................................................................................................................................I W1hO SPEED TN KNOTS

DIRECTION I 1-3 4-6 7-10 11-lb 17-21 22-27 28-33 34-40 41-47 48-SS GE 56 TCTAL MEAN

lOEGREEsI I W wIND

N 2.3 1.1 2.5 .1 8.0 9.3

NNE .8 2.5 2.5 .2 5.9 6.5

NE .8 3.7 4.1 .S 9.0 6.7

ENE .8 2.5 3.4 .4 7.1 6.6

L 1.3 3.1 2.5 .4 7.3 6.1

ESE .3 3.5 1.4 .3 5.6 6.1

SE .4 2.7 4.2 3.7 1.1 12.0 q.e

SSE .4 I.q 4.9 8.5 1.9 .4 18.' 12.L

S .2 1.3 1.3 1.5 .5 .1 10.1

SSW .l .1 .1 .2 .5 9.0

S I .2 .2 .2 .1 .8 6.3

WSW .1 .8 .5 .1 1.5 11.

I .3 .s 2.0 1.8 .2 4.9 10.1

WNW ,1 .3 1.3 1.1 2.A 10.3

NW .1 .2 1.8 2.7 4.S 11.1

NNW .1 .4 1.9 1.8 .5 4.8 11.2

VARIABLE

TOTALS 1 5.9 15.4 35.6 26.3 4.5 .4 100.0 9.C


Iwt

GLC3AL CLIMATOLOGY BRANCH PLRCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAI WEATHER SERVICE/MAC

STA1ION NUMBEP: 72o225 STATICN NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: MAY HOURS(LST): IS0-1700

................................ ...............................................................................................WIN SPEED IN KNOTS

DIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-2T 28-33 34-N0 41-NI 48-55 GE 56 TITAL MEANIDEGREES) I % WINo

...............................................................................................................................N .. 9 4.9 .? 8.9 8.,

NNE .8 3.1 1.8 1.0 6.9 6.6

NE 1.6 4.4 4.8 .3 11.2 6.!

ENE |.5 2.5 2.2 .1 6.2 5.4

L 1.8 4.3 1.8 8.0 Tl

ESE 1.0 2.4 .3 .4 4.1 5.5

SE 1-i 1.9 1.8 3.1 .2 P.2 F.1

SSE .8 2.4 3.7 6.0 1.1 .3 14.2 10.7

S 1.1 1.4 1.6 1.3 .2 .1 5.7 8.1

SSW .4 .5 .6 .1 1.7 6.1

SW .1 . .3 .2 1.) 8.3

WSW .] 1.1 .3 .1 1.8 9.5

w .2 .7 1.8 1.3 3.c .7

WNW .3 .6 1.9 1.7 4.6 9.9

NW .q .t 2.4 2.5 5.9 10.1

NNW . 2.3 2.3 .1 .4 1f).5

...............................................................................................................................VARIA"LE "

CAL 4 1 e2. //,f //.f/ // f / I /, f /I I / I/II I f f/I 1

2. 7 1 11111

TOTALS I 11.4 28.V 33.4 22.4 1.7 .4 100.0 7.s

...............................................................................................................................


Li

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED


AI WEAIHER SERVICE/MAC

STATION NUMBER: 72622S STATICN NAME: PLATTSBURGN AFS NY PEnIOo OF PECORD: 78-87

MONTH: MAY HOURSILSII: 1800-2000

WINo SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 I1-16 17-21 22-27 28-33 34-'O 41-q4 48-SS GE 56 TCTAL MEAN

IDEGREESI I S WIND

N 2.S 3.1 4.2 .2 10.0 5.s

NNE 1.8 2.e 1.0 5.6 4.E

NE 1.4 2.8 .9 .2 5.3 4.*

ENE 1.3 I.C 2.3 3.C

E 1.2 1.1 .1 Z.8 3.4

ESE .5 I.C .2 .2 1.9 5.2

SE .4 1.3 .9 .3 2.q

6.b

SSE 1.4 2.4 3.4 1.3 .1 8.6 7.1

S 2.6 2.5 2.4 1.2 .1 8.7 6.5

SSW 1.3 1.2 .S .2 3.2 S.L

SM .6 1.7 .4 2.3 8.6

WSW 1.1 .8 1.1 .2 3.1 5.9

M 1.6 2.5 1.8 .5 .1 6.6 6.?

WNW 1.3 1.3 1.8 .9 .1 5.4 6.9

NW 1.8 2.6 2.0 .6 7.1 6.1

NNW 1.5 2.5 1.9 .6 6.6 6.2

VA ; i............................................................................................................

CAALE I 1t

TOIALS Z 2.4 29.8 22.7 6.6 .3 .1 100.fl 4.8


- - -.

GLLBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIN WEATHER bERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFP NT PERIOD OF RECORD: 78-87MONTH: MAY HOURSILSTI: 2100-2300

................................................................................................................................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 3'4-4U 41-7 4R-55 GE 56 TOTAL MEANIDEGREES) t WIND

... .. N . .. ... .. [ ; . .. 2 . ... Z .. ... i ... .. i .......................................................i;........ .....

N 11 2t 23 . .16.0 6.2

NNE .6 .9 .3 1.8 4.5

ME- -1.6 '4.8NE I 2 .3 ,1 , .

ENE .2 .1 .3 6.7

E .1 .2 .2 .5 5.6

ESE .3 .1 .2 .6 4.5

SE .4 .5 .4 .2 1.6 6.5

SSE 1.2 2.5 1.2 .4 5.3 5.8

S 4.0 3.3 1.7 .9 .2 10.1 5.5

5SW 1. 1. .3 .1 3.7 3.S

SM 1.4 1.7 .6 .1 3.Q 4.5

WSW 2.2 j.9 .5 .2 4.8 4.5

6 3.Tn 4.7 2.0 .4 10.2 4.

WNW 3.0 4.2 ,4 .1 .2 8.0 4.5

NW I -3 3.1 1.0 .6 7.1 5.C

NNW 2.5 2.2 .9 .5 6.0 5.4

VARIABLE I

CALM I 29.4 /i/I////1/

TOTALS I 24.3 29.4 12.4 4.1 .3 .2 100.0 3.6I

.................................................................................................................................


6w

GL6BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

USAFETAC FROM HOURLY OBSERVATIONSAI. WEATHER SERVICEIMAC


MONTH: MAY HOURSILSTI: ALL


DIRECTION 1 1-3 4-6 7-10 11-16 17-21 Z2-21 28-33 34-40 41-47 40-SS GE 56 TCTAL MEAN

IDEGREESI % WINE

N I I2 2.8 3.7 1.2 .D .ol.. , 7,

NNE .8 1.9 1.3 .3 4.2 6.1

1 .8 1.8 1.6 .2 4.5 6.c

ENE .6 1.0 .9 .1 2.6 5.7

E 1.1 1.6 .7 .1 1.7 4.9

ESE .6 1.2 .5 .1 2.4 1.3

SE .8 1.P 1.9 1.6 .2 6.3 8. 2

SSE 1.4 2- 3.8 3.5 .5 .1 11.6 8.9

S 2.8 2.6 1.7 1.1 .1 .0 R. 6.1

SSW 1 .3 8 .2 .1 2.4 4..

SW .7 8 .4 .2 2.1 5.4

WSW .9 I.C .9 .4 .1 3.2 6.4

W 1.1 1.9 1.8 .8 .0 .0 5.7 6.8

W NW 1.2 1.4 1.2 .7 .1 .0 4.6 6.e

NW 1. 1 1.. 1.7 1.3 .0 5.8 7. 5

NNW .8 1.7 1.9 1.1 .1 1 .6 7 .

VAR IALE

CALM 1 / / / / 8.2 III

TOTALS I 17.1 26.7 23.9 12.8 1.1 .2 100.0 S.I


GL(BAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSEOVATIONSAIA WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PEQIOD OF RECORD: 78-87

MONTH: JLI HOURS(LSTI: OO00-0200

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 I1-16 17-21 27-27 28-33 3-4

O 4 1-47 48-55 GE 56 O(TAL MEAN

iDEGREESI I I WIND

FINE .2 .1 o2 .4 **

NE .2 .2 .4 3.

ENE .4 .4 2.

E 1 . .Y 2,.

ESE .3 .2 .6 4.6

SE o 7 . .2 .1 2.3 5.0

SSE , ,€ 1.7 .7 4.6 b.

S 5.0 3.6 1.4 .3 .1 1o.. 4.4

SS 2.P 1.1 .2 4.7 3-

Sw 3.I I.C .7 .2 5.0 0.E

WSW 2.M 1.6 1.3 .1 5.9 4.6

W T.1 4.6 2.8 .3 10.9 .

WNW 2. 2.q 1. 2 5.6 ,

N6 I.6 1.2 .8 1.6 4,

RNw .6 1 . t.7 I.l b

TOTALS I 24 .7 20.A 13.6 2.3 .2 .1 1D'. 3 .C

TOTAL NLMBCR OF ORSERVATIOIS: 900

* -6dl 'wl r d I '-I ,,r I - - - k. . . .. ,

- -P

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIN 0 SFECO


Al1 WEATHER SERVICE/MAC

STATION NUMPER: 726225 STATICN NAME: PLATTSBURGH AFB NY PEQIOD OF RECORD: 78-87MONTH: JUN HOURSCLSTI: 0500-0500

.. ......... .......................................................... ..... ............................................

WINO SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-0 NI-41 48-SS GE 56 ICTAL MEAN

IDEGREESI I T WIND

..............................................................................................................................................N .7 1.7 1.1 .9 3.9 6.5

NNE .2 . .7 3.8

NE .2 .2 .4 3.8

ENE f .3 .2 .6 3.C

E .4 .1 .6 2.6

ESE .2 .2 2.C

SE .6 .9 .2 1.7 4.3

SSE 2.3 1.7 1.3 .9 .i 5.9 S.7

S 3.9 3. 1.3 .9 .1 9.7 5.1

SSW 2.8 1.! .1 4.2 2.6

s9 2.3 1.6 .2 9.1 3.4

WSW 1.1 1.8 1.1 .1 4.1 5.3

I 1.9 4.C 1.2 .2 7.3 5.1

WNW 1.6 2.6 1.2 S.3 4.7

NW 1.2 1.0 .7 .3 3.2 5.!

NNW .9 1.9 1.7 .3 9.R 6.2

VARIABLE I

TO]8ALS 20.7 22.P 10.2 2.8 .2 IUZ1.Z 2.e

031AL NUMBER OF OBSERVATIONS: 900

AIL

GLUBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED


All, WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLA7TSBURGH AFB NY PERIOD Of RECORD: 78-83MONTH: JUN HOURSILSI: 0600-0800

.. ,. o... .. .. o. . . . . . . . . . . . . . . . . . . ....................o.....*...................-- . •... . ... .o.,.... .. ... . ,,.

I WINO SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-Z7 23-33 34-40 414 7 48-55 GE 56 ICTAL MEAN

IOEGREES) I I WIND

N 1.3 1.2 3.4 .8 6.8 7.2

NNE .6 1.' *3 .3' 5.c

NE .6 .4 1.0 3.

ENE .6 .6 1.0 3.1

E .3 .7 1.1 3.7

ESE 1 1.0 1.1 .2 2.6 4.2

SE 1.2 3.[ 1.8 .4 6.6 5.s.

SSE 2.8 6.3 3.0 1.3 13.6 6.C

S 5.6 4.3 1.7 .8 12.3 6.7

SSW 3.1 1.2 .4 6.R 3.3

SW 1.1 2.0 1.0 6.1 5.1

WSW 1.3 2.1 1.0 .2 4.7 5.2

w .9 1.7 2.3 .4 5.3 6.7

WNW .8 1.2 1.4 .7 4.1 6.E

NW 1.0 .F 1.4 .8 4.7 7-L

NNW .7 .C 1.9 .4 4 . 7.3

.. ..o.. . ............. .... ......... .......°.... .. ................. .............. ....... ..... ...... •...................

VAR IBLE I

TOTALS I 22.8 29.1 20.0 5.9 100.0 4.6

TOIAL NUMBER Of CPSRVATIONS: 900

-F- ------ -- ______I________ -____-___--

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED



STATION NUMBER: 726225 STATION NAME: PLATTSBUR5H AFS NY PERIOD OF PECORO: 7B-87

MONTH: JUN HOURS(LSTI: 0900-11O0


DIRECTION I 1-3 4-b 7-10 11-16 17-21 22-27 29-33 34-0 41-47 48-55 GE 56 T(TAL MEAN

(DEUREES) I % WIND

N I .8 1.1 3.0 1.2 .1 6.4 A.!

NNE .1 2.2 1.6 .2 4.1 6.4

NE -3 2.2 .4 3.C 5.3

ENE 1.1 1.4 .8 .1 3.4 5.c

L 1.1 2.8 1.1 .1 5.1 5.2

ESE 1.2 1. 1.2 .3 .1 4.7 6.1

SE .8 4.9 5.2 2.6 .2 13.7 t.c

SSE 12 4.3 10.3 7.1 .6 23.6 9.c

s11 2.C 2.2 1.2 .2 6.R 7.t

SSW .1 .8 .4 .2 1.6 7.C

SW I -6 .4 1 .0 .3 2 . 6.7

WSW .2 1.1 1.0 .2 2.6 7.1

1 .2 1.6 2.7 1.3 5.A 8.

WNW .4 .9 1.8 .8 3.9 8.2

NW .) .7 2.7 2.1 5.6 9.8

NNW 2.z .3 2.1 1.2 3.9 9.8

VARIABLEI

CALM 3.7 ///fijI//Ii//IIU/II///I/I/l//I/II/I/I/////II/////// //// I/I /////i/II// 3.7 Illll

IOIALS I 9.7 28.p 37.6 19.1 1.2 100.0 7.6

TOIAL NUMBER OF ORSERVATIONS: 900

AL

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MINO DIRECTION VERSUS WIND SPEEO

USAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STAI1CN NAME: PLATTSBURGH ArB NY PERIOD OF RECORD: TB-S7

MONTH: JUN HOURSILSII: 1200-1400


DIRECTION 1 1-3 4-6 7-1O 11-16 11-21 22-27 28-33 34-4O 41-47 48-55 GE 56 TOTAL MEAN

IDEGREES) I z WIND....... ... . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . .................. .e...e e.........~e° ~ o... . ~ .e..... ...

N .6 2.r 3.4 1.1 7.1 8.C

NNE .1 1.9 1.4 .3 4.0 7.E

NE .6 1.9 .3 2.9 4.s

ENE .8 1.9 .9 3.6 5.2

E .7 3.2 1.3 .1 5.3 5.7

ESE 1.2 2.C 1.7 .4 .2 5.6 6.4

SE .4 3.1 4.0 3.0 .6 31.1 9.4

SSE 1.4 3.C 6.7 9.9 1.9 22.4 10.4

S .8 2.1 2.1 1.9 .6 7.4 8.7

SSW .3 .7 .3 .4 .1 1.9 7.5

SW .2 .8 .1 1.1 8.2

WSW .1 .2 1.0 .4 .1 1.9 9.i

W .2 ,q 4.0 1.7 .1 6.q 9.1

WNW .7 3.6 1.7 5.9 10.1

-N .2 .6 3.1 3.4 .1 7.4 10.6

NNW .? .7 1.6 1.6 .1 4.3 9.,

VARIABLY

TOT L I 8.1 24.8 36.2 25.7 3.8 100.0 8.7

TOTAL NLMBER OF OBSERVATIONS: 900

0

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE IND DIRECTION VERSUS WIND SFEED


A£3 WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7F-B7

MONTH: JUN HOURS(LSTI: 1500-1700

I WIhD SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 II-lb 17-21 22-27 28-33 34-40 4]-47 4P-55 GE S6 TAL MEAN

IDEGREES) I S WIND

N .4 I.C 2.2 1.0 4.7 8.!

NNE .8 2.6 1.1 .2 4.7 5.1

NE .7 3.1 .7 4.4 5.C

ENE *8 1.4 .6 2. P 8

E l. 4. 3 .4 .1 6.7 4.4

ESE .7 1.6 .7 .1 3.0 §.Q

SE 1.0 1.4 2.6 1.0 .3 b.3 6.1

SSE 1.2 3.6 6.0 7.6 .4 18.8 9.7

S I .8 1.4 3.0 2.4 .2 8. 3 P.5

SSW .4 .6 .4 1.4 .6

SV 3 1 1.0r .3 .3 2.T 6 .

WSW .2 .8 1.6 1.0 3.6 8.6

W .1 1.4 4.0 2.0 7.6 9.1

WNW .3 2.0 3.2 3.2 A.M Q.4

NW .4 .4 3.2 2.6 .1 6.R I.1

NNW .1 1-6 3.1 2.4 7.2 9.6

.... ........ '...............................................................................................................VARIABLEI

CALM I ,,/,j/////////////////////////////j////I//// ///// /////// /I//I// // //////I 3.7 ,/nI/

TOTALS I 10.1 Z8.7 33.1 24.0 1.1 100.0 S.CI


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WIND DIRECTION VERSUS WIND SFEED

USAFETAC FRO" HOURLY OBSrRVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PEoIOD OF RECORD: 7B-87

MONTH: JUN HOURSILSTI: 1800-2000

.............................................................................................................................

I MIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-ID 13-16 17-21 22-21 Z8-33 34-40 41-91 98-55 GE S6 TOTAL MEAN

IDEGREES! I % I No

...............................................................................................................................................N .9 1.6 .8 1.1 9.3 7.2

NNE 1.2 1.3 .2 2.6 3.7

NE 1. 3.6 2.7 3.e

ENE 3.3 .9 2.2 3.5

E .9 .7 .1 1.7 3.3

ESE 1.0 . -1 1.6 3.3

SE 1.0 1.9 .1 .3 !.4 5.9

SSE 2.1 2.6 3.3 1.2 .2 9.4 7.2

S 3.1 3.C 3.6 1.0 10.7 6.C

SSW 2.4 1.2 .4 .1 4.2 I.E

SW 1.6 1.2 1.0 .1 3.Q 9.5

WSW .9 2.r 3.2 .3 4. 5.9

W 3.1 2.s 2.9 .3 9.1 %,6

WNW 1.6 3.2 2.9 .6 7. 6.i

NW 3.6 2.6 2.0 .9 .2 7.2 6.e

NNW I -1 2.C 2.3 .6 .1 6.3 6.8

VARIABLE I

CALM / / 18.7 //1//1

TOTALS I 29.9 28.2 23.1 6.9 .7 100.0 9.I

IITOTAL NUMBER OF OBSERVATIONS: 900

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY or OCrURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SIEEDUSAFETAC FROM HOURLY OBSERVATIONSAll. WEATHER SERVICE/M6 C

STATION NUMBER: 126225 STATION NAME : PLATTSBURGH Arg NY PERIOD OF RECORD: 70-B7MONTH: JUN HOURSILSII: 2100-2300

I WINO SPEED TN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-640 41-47 48-55 GE 56 TETAL MEAN(DEGREES1 % WIND

NM 1.0 *S .9 .7 3.4 6.4

'AR E I .6 .6 .1 1.2 4.;

NE I .2 .. 3 3.c

ENE I .3 .3 .1 3.3

E I .2 .1 .3 3.L

ESE I .1 .2 .3 3.3

SE .6 .7 .7 .1 2.0j 5.6

SSE I 1.1 2.2 1.2 .7 .1 5.3 b.S

S 3.7 3.t. 1.6 .6 9.3 4.7

SSW 2.2 2.c *'4 4.7 3.k

SW I 2.8 2.1 .6 .1 5.6 4.L

WSW I 2.4 3.2 1.9 .1 1.7 4.5

W I 4.2 5.7 2.2 .2 12.3 4.1

WNW 2.6 3. 1 1 .3 .3 7. 3 4

44 I 2.4 2.0 1 .2 .3 6.'9 5.i1

NNW I * 1.4 1.0 .2 3.4 5.4

v AR I ABL, I

CALF /I mf/f(// f//t /, 30.3n ii

TOTALS I 25.2 28.2 13.3 3.3 .1 100.0 34

T014L NUMBER Or OBSERVATIONS: -Q0

AA11k

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFhCE WIND DIRLCTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: 78-g7

MONTH: JUN HOURSILSIT: ALL..............................................................................................................................I WIND SPEED TN KNCTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 Z8-Il 34-40 41-47 48-5S 6E 56 TeTAL MEANIDEGREES) I % WIND

N .8 1.! 2.0 .8 .0 .0 4.9 7.5

NNE .5 1.' .6 .1 2.5 5.6

NE .5 1.2 .2 1.9 4.t

ENE .7 .V .3 .0 1.9 4.4

£ ,7 1.5 . .0 2.6 4.7

ESE .7 .9 .5 .1 .0 2.3 5.5

SE .8 2.C 1.9 1.0 .2 5.9 7.5

SSE 1.7 3.1 %.2 3.6 .4 12.9 8.E

S 3.D 3.r 2.1 1.1 .2 q.4 6.

SSW 1. 1.2 .4 .1 .0 3.4 4.c

SW 1.5 1.2 .7 .2 3.5 4.7

WSW 1.1 1.6 1.3 .3 .0 4.3 S.V

W I .7 2.e 2.8 .8 .0 8.1 6.4

WNW 1.1 2.1 2.0 .9 6.1 7.C

NW 1.1 1.2 1.9 1.3 .1 5.5 7.8

NNW .6 1.7 1.9 .9 .0 .T7 7.e

.............................................................................................................................VARIABLE I

CALF 20.1 /If1///

TOTALS I 18.3 26.4 23.1 11.2 .9 .0 I00.0 5.3

........................................................................... ..............................................

TOTAL NUMBER OF OBSERVATIONS: Mn0

OLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Or SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEJMAC

STATION NUMBER: 126225 STATION NAME : PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: JUL~ HOURSILSII: 0000-0200

I WIND SPELD TN KNOTSDIRECTION I 1-3 4-6 7-ID 11-16 11-21 22-27 28-33 34-40 41-47 48-55 GE 56 TUTAL MEANIDEGREES) I WINO

N I .9 .8 1.2 .1 2.6 6.1

NNE I.4 .1 .S 5.8

NE I.1 .1 8.c

ENE I .1 .1 2.C

E .2 .2 j.5

ESE I .1 .1 2.C

SE I .4 .6 .2 .1 1.4 S.j

SSE I 2.0 1.4 1.0 .1 4.S 4.5

S I 5.4 2.2 .4 .4 8.4 3.b

SSW I 2.9 1.5 .1 4.5 3.c

SW I 2.8 1.S5 .2 4. 1 1.2

WS 1.2 2.5 .54. 5

A 3.1 5.5 3.8 .2 12.6 5 .

WN 2-2 3.4 .8 .1 . 4t

NW I 1.1 1.8 1.7 .4 5.1 6.3

NNW 1 .5 I.9 1.7 .1 5.T 5.;

VARITABLE I

TOTALS 1 23.1 23.35 11 .8 1.6 100.0 2.e

...............................................................................................................................


GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

USAF ETAC FROM IIOU6LV OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: TA-B7

MONTH: JUL HOURSILSTI: 0300-0500

....................................................................................................................................WINO SpEED TN KNOTS

DIRECIION I 1-3 4-b 1-jO 11-16 11-21 22-27 28-33 3-NO N1-A7 4p-S5 GE S6 TITAL MEAN

tDEGREES) I t WIND

N 1.0 I.C i.1 3.1 5. ,

NNE .2 .3 .2 -9 4.1

NE

ENE , .1 2.

L E1 1 2.L

ESE .3 .9 2.7

SE .5 .2 .1 .9 3.4

SSE I 2.0 .9 .8 .2 1.9 4.L

S 4.5 3.C .8 .4 .7 4.C

SSW 4.7 1.5 .2 6.5 2.s

sW 2.3 1.1 .3 3.7 3.

WSW I .8 1.1 1.2 4.1 4.t

W 1.5 3.2 1.9 .3 7.0 5.4

WNW 2.2 2.4 1.3 5.. 4.t

NW 2.0 1.9 1.0 .5 3

NNW I 1.0 .9 .5 .6 . 6.

...................................................................................................................................VBAR IABLE

CAL" I// 46.7 //1///

TOTALS 24.3 17.4 9.4 2.2 .1 100.0 2.4

TOTAL NUMBER OF CBSERVATIONS: 930

GLCBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY or OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

USIFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFK NY PERIOD OF RECORD: 70-8

MONTH: JUL HOURSILSTI: 0600-ObO0


DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-21 29-33 34-40 NI-NI 4B-SS GE 56 TETAL MEAN

LOEgREES) x S WIND-...... e..............e...............e..........e...........e.e......e..e...e..............ee..e...e...e.....e.e.e....e...

N 1.4 1.9 1.9 .3 5.6 6.C

NNE .3 .9 .1 1.3 4.3

NE .4 .1 .5 5.2

ENE .3 s .9 3.E

E .4 .4 .9 3.5

ESE ,. .5 1.3 3.3

SE 1.3 2.5 .9 4.6 4.e

SSE 3.8 5.0 1.9 .5 12.0 4,

S 6.9 4.3 1.8 .9 13.9 4.4

SSW 3.4 2.3 .1 5.p 3.l

SW 2.7 1.5 .6 4.9 3.5

WSW .9 1.4 .6 2.9 4 .

W 1.9 2.8 1.9 .2 6.9 S.

WNW 1 . 1.2 .9 .2 3.3 T2

NA .9 ., 2.0 1.0 4.6 7.7

NNW .4 1.7 1.7 .4 .2 4.5 7.6

VARIABLE I

CALM Ij/I i/i////j//j/I//////f///////PI///////////////////////////////// 26.1 I//11i

TOTALS I 26.5 28. 14.7 3.5 .2 io.0 3.7


- ~ L AM -- . -

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SfCEDUSAFETAC FROM HOURLY OBSERVATIONS

AIN WEATHER SERVICE/MAC

STATION NUMBER: 126225 STATICN NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: 78-87

MONTH: JUL HOURSILSII: 0900-1I00

IWIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 2P-33 3-NO 41-47 48-55 GE 56 ICTAL MEAN

(DEGREES) I % WIND

N I .8 I.! 2.4 1.1 5.5 .6

NNE .5 .5 .9 1.9 5.6

NE .5 1.5 .8 2.1 S.,

ENE .6 2.5 .4 3.5 4.1

E 1.2 4.C 1.1 .1 6. 5.C

ESE .3 3.1 1.5 5.4 5.t

SE 1.5 5-5 7.6 2.2 16.8 7,

SSE 2.0 6.2 9.5 5.2 .2 23.1 8.2

s 1.5 3.C 3.3 1.3 9.1 6.6

SSW .6 1.1 .9 2.6 5.5

SW I 3 .3 1.0 .1 1. 7.C

WSW .5 .6 .6 .2 2.2 6.6

W .2 .9 1.8 I 3.9 9.C

WNW .1 1.0 2.3 .5 3.g 8.2

NW .2 1.2 2.3 1.1 4.7 8.6

NNW .4 1.7 1.6 .4 4.? lo.1

VARIABLE I

CALM I //j/I/I////////i/I I///II////////I///////I////i///I/////i 2.5 ll/ili

TOALS I 11.1 33.4 38.0 14.4 .6 100.0 7T.

TOTAL NUMBER OF OBSERVATIONS: q30

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS TND SFEEDUSAFETAC FROM HOURLY OBSERVAT!ONS

AI WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7F-87

MONTH: JUL HOURSILST): 12o0-i00

WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 27-2? 28-33 34-40 4I-47 48-55 GE 56 TCTAL MLAN

IDEGREESI I s WINO

N .1 1.5 2.4 1.3 .1 .1 5.6 G.E

NNE .1 I.E .1 1.2 4.5

NE .2 2.2 .6 3.0 5.p

ENE .8 2.7 .4 3.5 4,7

E 1.6 b.C 2.9 13.5 5.4

ESE 1.1 2.' 1.7 5.2 5.4

SE 3 .2 3.' 5.2 3.7 .1 13. 8.E

SSE .R 3.4 6.9 9.6 1. 22.9 1C.E

S .6 2.6 2.0 2.0 .1 7.4 8.,

55S .5 .p .5 .1 1." 5.0

SW .2 1.1 1.1 2.4 6.3

WSW ,! .0 I.2 1.p 7.5

W .2 .p 3.0 1.4 .1 5.5 9.4

WNW .1 .6 2.3 1.5 4.5 q.b

NW I0 2.4 2.4 .1 5.6 10.6

NN . .1 1. 1.1 Z.0 4.5 l1.6

................................................................................

VARIABLE I

CALM 1.4I/II///I//Ii ifl.,//II//I//I//////I/I///IIIIIF//I/////I//I/I///ii///II/ 1.4 I/11

IOTALS 7.7 31.1 33.R 23.7 2.3 .1 100.0 ".

................................................................................

TOTAL NUMBER OF OBSERVATIONS: q30

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONS£16 WEAT-HER SERVICE/MAC

STAJION NUMB3ER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD Of RECORD: ?8-87MONTH: JUL HOURSILSTI: 1501-1700

I WIND SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 ZR-33 34-410 41-47 48-55 GE Sb ICTAL MEANIDEGREES, I % WINO

N 1 .A ?.-1 .9 S. 3 7.s

NNE I 9 I.E .B .1 2.7 5.3

NE I .6 2.? .8 3. c 5.1

ENE I 1.0 2.5 1.0 4.4 5-2

E 1 .2 3.3 1.1 5.6 S.c

VESE I .0 2.5 .4 3.9 6.6

SE I 1.7 1.1 64.2 1.8 .2 9.7 a .c

SSE I 1.5 2.6 61.9 5.9 .6 .1 15.5 9.6

S I 2.3 3.2 2.7 2.0 10.2 7.

SASW .8 .3 .1 .2 1.6 5.1

S4 .2 1.1 .9 .2 2.6 6.1

WSW 3 . .9 1.6 .6 3.13 7.3

W .3 1.6 1.1 1 .1 .1 6.11 8.6

WNA W .2 1.6 3.? .9 S.7 S.3I

NV .1 1.C 6.6 3.3 1.8 IO.c

NN it 1. 3.1 61.0 .3 8.7 10.6

..............................................................................................................................................VARIABLE

CAL ' l,,i/i/,/ill m/ l/ ilI 111/lIIlIl/~ IIli//1 /mll/i/l il/ 1'//// 3.?2 t/

TOTALS I 12.5 27.0. 36.3 20.6 1.4 .1 100.0 7.b

..............................................................................................................................................


GLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED


AIR WEATHER SERVICE /MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORO: 7-8sMONTH: JUL HOURSILSII: 1800-2000

..............................................................................................................................I WINO SPEED IN KNOTS

DIRECTION 1 1-3 N-6 7-10 11-16 17-21 22-27 28-33 3-NO NI-N7 N8-S5 GE 56 TOTAL MEAN

IDEGREES) I I WIND

N 1.8 2.C 1.7 . 6.0 1.6

NNE 1.2 1.3 .3 2.8 4.3

NE 1-2 .8 .3 2.3 N.c

ENE . .5 1.3 3.2

E 1.1 .5 .1 3 7 3.3

ESE .6 .1 .A 2.8

SE .8 .6 *N .7 2.l 5.6

SSE 1.1 2.8 1.8 .7.1 7.

S 14.1 8.3 2.2 .3 .1 11.9 N ,.

SSW 3.6 1.7 .5 .1 8.0 4.4

Sm 3.2 1.7 . .z 5.6 3.9

WSW 1.9 1.2 .8 3.5 3.9

W 8.2 3.7 2.0 .3 .1 10.3 8.8

WNW 1.8 2.8 .9 .2 5.7 8.%

NU 1.7 3.2 3.1 1.0 9.9 6.5

NNW 1.2 2.3 3.3 1.1 .2 8.1 1.4

VARIABLE I

CAL11 llp f 1fl ////I/ 111111i lo.q illIl l

TOTALS I 28.3 29.6 17.6 5.3 .8 200.0 8.3


GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE.MAC

STATION NUMBER: 726225 STATION NAME. PLATTSBURGH AFB NY PERIOD OF RECORD: 18-87

1MONTH: JUL HOURS(LS|I: 2100-2300

| WIND SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 68-55 GE 56 ICTAL MEAN(DEGREESI % WIND

N .6 .8 .9 .3 2.6 6.1

NNE .1 .6 .F 6.7

NE .1 .1 .1 .3 8.3

ENE .1 .1 .2 2.5

E .1 .1 2.C

ESE .2 .3 .5 3.6

SE , b .6 .1 1.6 4.1

SSE 1.3 1.1 .6 .2 3.0 6.6

S 3.7 2.2 1.2 .6 1.6 6.7

SSW 3.3 1.2 .1 6.6 Z.9

sm 1.9 1.6 .6 6.0 3.6

WSW 3.3 3.3 .8 7.4 4.1

W 6.1 7.6 2.8 .5 15.1 5.1

WNW 3.6 6.2 1.9 9.6 4.c

NW 2.5 2.6 1.6 .6 6.9 5.I

NNW 1.6 1.6 1.1 .2 6.3 5.3

........................................................................................................................................VARIABLE I

CALFMilfe /m/ //t//f//f// ////// ///// 31.8 //1///

TOTALS | 26.8 27.7 11.2 2.5 100.0 3.2

...........................................................................................................................................


GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SPfEED



STATION NUMBE.; 7262i$ SIAOICN NAME: PLATTSBUH6H AFB NY PERIOD OF RECORD: 78-87

MONTH: JUL HOURSILSTI: ALL


DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-21 29-33 34-40 61-47 48-55 GE 56 TOTAL MEAN

SIDEGREES) I % WINL

............................................................. ...... .............................................................N8 1., 1.7 .4 .0 .0 4.5 7.C

NNE .4 . .3 °0 1.5 4.9

NE I .3 .9 .3 .0 1.6 5..

ENE .5 1.1 .2 1.9 4.L

E .7 1.8 .6 .0 3.2 4..

ESE .6 1.2 .5 2.2 4.S

SE 1.0 1.9 2.3 1.0 .0 6.3 7.3

SSE 1.8 3.C 3.4 2.9 .3 .0 11.4 8.L

S 3.6 3.1 1.8 1.0 .0 9.5 5.4

SSW 2.2 1.3 .3 .1 3.9 3.7

S I 1.7 1.2 .6 .1 3.6 4.3

WSW 1.3 1.4 .8 .1 3.6 5.1

A.9 3.2 2.6 .6 .0 8.4 6.C

WNN 1.41 2.1 1.7 .4 5.6 5.9

ANW 1.1 1.7 2.3 1.3 .0 6.3 7.6

NNW .7 1.4 1.8 1.3 .2 5.3 8.2

VARIABLE I* . -- . ° ° * * *' ° *.* ° * ' . o ° ' '° '

CALM 2 / f / / 1.3 /I////1

" TOTALS I 20.0 27.4 21.3 9.2 .6 .0 100.0 4.s


* L

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MINO DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS

AIS WEAIHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87MONTH: AUG HOURSILS11: DOO0-0200

...........................................................................................................................


DIRECTION I 1-3 4-6 7-0 11-16 17-21 22-21 28-33 34-10 11-Ni 4-55 GE 56 TOTAL MEAN

IOEGREES) I % WIND...................................................................................................................... e....

N 1.8 1.4 1.2 .4 8.8 5.1

NNE .1 .2 .1 .8 6.3

NE .1 .1 .2 3.s

ENE

E .1 .1 2.C

ESE .1 .1 .2 3.C

SE .3 .4 .1 *Q 4.3

SSE 1.2 .8 .8 .2 2.6 5.5

S 8.0 2.8 1.5 *S 8.8 8.6

SSW 3.9 1.5 .1 5.5 3.C

Sk 2.3 1.6 . 8. 3.6

WSW 1.9 2.C .9 a.8 4.5

I 3.2 8.2 1.8 9.2 8.6

VNW 1.5 1.8 .6 8.0 8.2

NW 2.3 1.9 .8 .3 .2 5.2 8.1

NNW 1.8 1.8 1.5 .1 8.4 5.C

VARIABLE I

CALM 44.9 If////lIl/II III Ii I /11111 iii 1111/IlIII /IIIJ.'/// i / .'/I/// IIIII/,/J //I 88*9 1.1111

TOTAL$ | 24.2 19.6 9.8 1.7 .2 100.0 .25

.............................................................................................................................


-Ala-., ,, d illlldlmimad i

| * S S * * ' I - --Ii

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY UF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEI/AC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-67MONTH: AUG HOURS(LSTI: 0300-0500

..............................................................................................................................I WINO SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 2P-33 34-40 41-417 48-5 GE 14 'CTAL KE PIOEGRES1 1 '. WIND

N 1.1 1.8 1.3 .1 4.1 5.6

NNE I .2 .1 .2 .5 5.*4

NE .2 - .6 3.7

ENE .2 .2 .4 3.3

£ .4 .4 .7 3.5

ESE 3..1 . .C

SE .1 .1 .3 .1 .6 7.3

SSE .2 .8 .1 .2 1.3 6.C

s 3.8 1.7 1.3 .8 7.5 4.t

55W 4.3 2.3 6.6 2.9

SN 2.2 1.6 .4 4.? 3.8

WSW 1.3 1.3 .2 2. 1.7

W 1.9 4.C 1.5 7.4 4.7

WNW 1.2 1.7 .9 3.8 4.6

NW 1.4 1.7 .1 .3 3.8 S.2

NNW 1 .1 2.2 1 . .1 4.7 5.5

.............................................................................................................................VARIABLE

CALM SO 5.6 IlIIII

TOTALS 19.? 20.1 7.7 1.8 joO*a Z.2

.............................................................................................................................


"J~l- l'- .. iI ~ ~ i i iI -I NeIbo"P

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY or OCCURRENCE Or SURFACE MIND DIRECTION VERSUS WIND SFEEDUSAFE7AC FROMq HOURLT OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 126225 STA7ION NAME: PLATTSBURGH AFB NT PERIOD Or QECORD. 78-81MONTH: AUG HOURS4LSTlz 0600-0800

...............................................................................................................................I WIND SPEED TN KNOTS

DIRECTION 1-3 4-b 7-10 11-lb 17-21 22-27 20-33 344 Al-4 4B-SS GE 56 TOTAL MEANIOEGREES) 2 WIND

N I 1.1 2.3 Z.7 S .1 6.7 8.6

NNE I .3 .3 .2 .9 4.4

NE I .1 .1 .2 1.1 5.5

ENE I.1 .1 6.C

E I .2 .2 .4 3.b

ESE .5 .3 .9 3.1

S E I 1.2 .9 .2 .1 2.4 4.c

SSE I 2.0 2.1 .6 .5 5.5 S.L

S 6.7 4.2 2.0 ft 13.7 4.4

SSW 5.1 1.8 .3 7.2 2.-,

SM W 2.2 1.9 .3 4.4 3.4

WSW 1 .5 1, .9 1.7 4.1

w .5 2. e 2.3 .2 5.8 6.1

MNM 1 .3 .9 1.3 T.4 5.1

NV I .7 1.1 1.2 .S 4.40 5.8

NNW .8 1.3 1.7 .3 4.1 6.3

VARIABLEI

TOTALS I 25.2 22.1 14.0 2.1 .1 100.0 3. 1


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED



STATION NUMBER: 72b225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-8?

MONTH: AUG HOURS4LSTI: 0900-1100..............................................................................................................................

WIND SPEED IN KNOTS

DIRECTION 1 1-3 1-b 7-10 13-lb 17-21 22-27 28-33 3%-0 41-47 48-55 GE 56 TCTAL MEAN

IDEGREES1 I I WIND

...............................................................................................................N.3 2.8 3.7 .8 .1 7.8 7.

NNE .5 1.8 1.1 3.5 5.7

NE |.0 2.4 .5 3.8 4.7

ENE 1.1 1. 31 5.8

E 2.4 2.s .4 5.3 3.5

ESE 1.7 2.7 .3 4.7 4.2

SE 1.8 6.C 6.5 1.7 .a 16.2 7.c

SSE 2.7 5-7 6.8 3.7 .1 1T.q 7.4

S 2.5 2.3 2.8 .8 8.3 6.[

SSW .5 .4 .3 1.3 5.c

SW .4 .5 .9 S5 2.3 7.7

WSW .1 .3 1.7 .6 2.R 8.1

N .6 2.0 2.9 .8 6.3 7.2

WNW .2 3.1 3.T .3 3.1 7.5

NW .3 A8 1.2 .4 2.7 7.6

NNW .1 .6 3.5 .6 .1 3.0 9.L

VARIABLE I

TOTALS I 16. 33.2 32.6 10.2 .8 10.0 6.2


GLuBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO ShEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 72622S STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 79-67

MYNIM: AUG MOURSILSTI2 1200-1400

WIGSPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 IN22-27 20 -13 38-80 81-47 48-SS GE 56 T(TAt MEANI EI EESI I I WNL

N I 3 1.1 2.5 1.2 .1 5.2 8.7

NN E I .5 1Y 1.2 3.? 5.6

NE I ~ 2.7 1.8 4.4 5.9

ENE I .1 2.9 1.3 4.s 5.-,

E I 1.6 3.8 2.3 7.6 5.3

ESE 1 .3 3.8 .8 5.5 . t

SE I 1.84 i.2 6.3 2.8 .1 14.R 7.8

SSE I .9 2.9 8.9 9.0 .6 21.9 10.2

S I . 2.3 1.9 1.6 .7 6.8 8.z

SSW I .1 .8 .7 1.1 5.4

SA .1 .41 .3 .3 1.2 7.5

WSW 1 . L., 1.0 .3 .1 2.5 8.1

A .3 .9 2.3 1 .1 .1 4.6 9.1

WNW . .9 2.0 1.8 8. 1 9.5

NA . 1.1 2.8 2.7 .1 .1 S.9 9.9

NNW .8 1.8 2.7 .4 12 9.1 e.1I

. . .. ...................................................................... ..

TOTALS %I 8.9 S. p 37.8 115.9 1.5 .1 100.7i 7.9


JJ

01

GLkOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY Or OCCURRENCE OF SURFACE WIND DIRfCTION VERSUS WINO SFEEOUSA - AC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAIE: PLATTSBURGH AFB NY PERIOD or RECORD: 78-87

MONTH: AUG HOURSILSTI: 150-1100... ee.... ... ... ... .....ll ~ . ..l .. oo... . ... ..~o ...e~..... ..... .. ... *.. o......... o.... .. ---.. .. .. .. .. ..--o. ..

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-lb 17-21 22-2? 28-3 3 3M-0 N1-Mi 8-55 GE 56 T(TAL MEAN

4DEGREES I I WIND

N .9 2.2 2.5 .9 .1 6.5 7.'4

NNE .6 2.3 .9 3.7 5.1

NE 1.6 2.6 1.2 5.8 N

ENE 1.8 2.9 .9 .1 5.7 4,

E 2.0 3.5 .3 5.9 q M1

ESE 1.1 1.5 .3 2.Q 4.4

SE 1.2 3. M.D .8 9.2 6.r

SSE 1.1 3.p 6.6 M.6 .1 16.1 P.7

S 1.6 2.M 2.0 2. 8. m 7.4

SSW .8 1.1 .5 2.0 5.5

SW .5 1.0 .N .S ? 5.5

WSN . 1.6 .2 3.1 .c

W .6 1.8 2.5 .9 5.q 7.6

WNW .5 1.2 2.3 .8 u.7 8.c

NW I . 1. 2.7 1.3 .2 6.0 8.s

NNW .6 1. 3.5 1.3 .1 .l 7.2 B.!

VAR IABLE I

CAL P |ifif//ill li/ffil/ III / If llf/I fill I/I//// If II if////// .7 II11

TOTALS I 15.W 33.C 32.0 13.2 .5 .1 100.0 6.5

................................................................................................................................


GLCBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAlk WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATICN NAME: PLAITSBURGH AFS NY PERIOD OF RECORD: 78-B?MnNTH: ALG HOURSILSTI: 1900-2000

I WINO SPEED TN KNOTSOIRECTION I 1-3 6-6 7-10 11-16 17-21 22-27 28-33 34-40 4I-N? 48-SS G 56 TLTAL MEAN

IOEGREES) I I WIND

N I I2? 1, 1.2 .6 14.9

NNE 1. 1.1 .N .2 3.2 4.6

NE 1.2 -2 .. 2.3 3.k

EhE I.I .3 1.4 2.P

E .5 .N 1.0 3.t

ESE .4 .2 .6 2.7

SE 1.2 I.C .1 2. 3.s

SSE 1.5 2.2 3.0 .3 7.5 6.2

S 1 3.3 3.5 7.2 .9 9.9 5.4

SSW 1.9 1.1 .1 .1 3. 3.t

SW 2.2 1.1 .3 3.5 3.4

WSW 1.8 1.2 .7 3.2 3.6

3.0 2.5 .5 ,1 6.6 3.9

WNW 2.3 1.P 1.4 .1 .1 5.7 5.L

NW 1.4 2 . 1.8 .5 6.2 5.9

NNA 1.5 2.3 1.9 1.0 ,! 6.6 6.t

vARIABLE I

CALM /// 32.2 II1

TOTALS I 25.8 26.9 13.N 3.9 ,1 .1 100.0 3.l

........................................

TOOAL NUMBER OF OBSFRVAIIONS: q30

GLUBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SP[EDUSAFETAC FRUM HOURLY OBSERVATIONS

AIR WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: T8-87

MONTH: ALG HOURSILSII: 2 0q-23C3

I WINO SPEED IN KNOTSDIrEC;ION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 1-A7 4P-S GE 56 1IAL MEAN

(DE(IREES) I I AINL

N IP *T I.5 1.0 .3 ... 3.3 6.R

NNE .1 .7 .2 .6 c.

NE .2 .2 . 4 .L

ENE .4 .2 .

L .2 4..

ESE

SE .3 .2 .2

SSE .8 .4 3.2 2.4 .P

S I 4.5 2.6 1 .0 .4 A .5

SSW 3-3 I.c .1 w.4 ?.k

Su 2.2 I .4 6.3 1.6

WSW 2.9 2.! .4 . 5.9 4 .L

W 4.7 5. 3 2.2 .2 1 .4 , ..

WNW 3.2 4.6 1.3 9.1 . 3

h W 2.2 2. - 1 -2, .3 . 6.2 5.1

NNW '.1 .0 2.0 .6 4.5 6.e

VAR IABLE

CALM 36.9 IIIIII

7OTALS 26.0 23.4 11 .2 2.1 ,3 Io. C ..

L M........BE... -. R O.............. ...S:.. .....................................30........ o .... .... ...... • ..... .....

107AL NUMBER OF OBSERVATIONS: 9'30

71---

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFEAC FROM HOURLY OBSERVATIONS



MONTH: AUG HOURS(LSTI: ALL............. ............................................................................................................

RIND SPEED IN KNOTSDIRECTION 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEANIDEGREES) I % WIND

.. ~~~ ....- ~~~~ - -~~~~~ *- -- ~~~~~~~......~~~. .-. ~~~~.........................................................."" ' ''' 5.3 7.CN I .8 l.P 2.0 .6 .1l. .

NNE .5 I. .5 .0 2.0 5.3

NE .6 1.2 .4 2.3 4.6

ENE .6 1.0 .3 .0 2.0 4.8

E .9 1.4 .4 2.7 4.4

ESE .7 1.0 .2 1.9 4.3

SE .9 2.c 2.2 .7 .0 5.9 6.9

SSE 1-3 2.3 3.4 2.3 .1 9.5 8,1

3.4 2-7 1.8 1.0 .0 8.9 5.5

SSW 2.4 1.2 .2 .0 3.9 3.3

Si los 1.2 .4 .1 3.3 4.3

WSW 1.2 1.3 .9 .2 .0 3.6 5.2

A 1.9 2.9 2.0 .4 .0 7.2 5.6

WNW 1.3 1.7 1.4 .3 .0 4.7 5.6

NW 1.2 1.6 1.4 .7 .1 .0 5.1 6.t

NNW .9 1.4 2.0 .6 .0 .0 .0 59. 6.9

...........................................................................................................................

VARIABLE I

CALM f/J/j/////II i I 1 26.9 I/l/

TOTALS I 20.1 25.9 19.7 6.9 .4 .0 -C IOO.0 4.4

.............................................................................................................................

TOIAL NUMBER Of OBSERVATIONS: 7440

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO OIRECTION VERSUS WINO SEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 76-8?MONTH: SEP HOURSILSTI: 0000-0200

WINO SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-? 28-33 3-40 41-7 48-55 GE 56 OTTAL MEANIOEGREFS) I % WIND

. . '. . .. I. . ° .. . . '. .. .. .I . .. ...e. . .. . .. . .... . . .... . .. . . .... .e ... ....... °.. .

N -.8 1. 2.6 .8 .2 5.1 7.6

NNE .2 .1 .1 .4 8.3

NE

ENE

E .1 .2 .3 3.3

ESE .1 .1 3.c

SE .4 .1 .6 2.i

SSE .7 .7 1.2 1.1 3.7 8.2

S 8.3 3.6 2.7 .8 . 11.4 '.3

SSW 3.2 2.C .6 5.8 3.6

Sw 2.1 1.2 .2 3.6 3.,

WSW 2.3 1.2 .6 .1 8.2 3.;

W 4.1 Z. .8 .6 7.4 4.2

WNW 2.7 3. 1.9 .1 8.8 s.c

NA 2.8 2.1 1.0 .3 6.2 4.8

NNW 2.0 3.9 1.1 .2 7.2 4.E

VARIABLE I

CALP I j///I//jII/I/I iJ/////II iIII////II ii/I///I///#I jI j iI///II/Ij jIII// II/I///I/j1/ 35.6 IIIII

TOTALS I 25.6 22.2 12.7 3.7 .3 100.0 3.i

.. .. .. .. .. .. ..... . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . ......... ° . ' i . '. ° . . ... . .. . . .


SLEBAL CLIMATOLOGY BRANCH PERCENTA6E FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS MIND SPEED


All. MEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-A7MONTH: SEP HOURSILSTI: 0300-0500

............................................................................................................................................I WIND SPEED IN KNOTS


IDEGREES$ I x WIND

N 1 .8 3.c 2.D .6 .1 7.11 6.2

NINE I 1 .2 .3 11.3

NE .1 .1 2.C

~ENEE ,I .1 2.c

ESE ,I .1 2.c

SE .2 .2 .1 6.5

SSE .8 1.2 1.3 1.1 1.1 7.7

S 5.0 1.2 1.1 1.0 11.7 4.9

SSW 3.0 2.0 .1 5.1 3.3

SM 2.2 1.6 .1 3.9 3.1

WNSW 1.6 1.7 1.0 4.2 11.1

W 3.1 2.7 1.0 6.A 41.2

WNW 2.8 3.1 .7 .1 6.7 4.1

NM 2.1 I.p .8 .2 1.9 1.14

NNW 2.3 2.6 .6 .6 .1 6.1 5.1

VARIABLE I

CALM I .. /I i///I/I iitI//I/I i//Ii/i/I i i//I/IiI///III//III iIIi'I//II/I h/II lI//u//I//I 37.7 lIll

TOTALS I 25.1 211.2 9.2 3. .1 .2 100.1 3.C


GLGBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUEkCY OF OCCURRFNCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIA WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME. PLATISBURGH AF9 NY PEQIOD OF RECORDS TA-87MONTH: SEP HOURSLSTI: 0600-0800

................................................................, I o ; ; ' ; ..... ..WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 38-40 81-7 48-55 GE 56 TCTAL MEANIDEGREESI I % WIND

N I 1.9 ZP 3.3 1.1 9.1 6.

NNE .3 .6 .1 .1 1.1 5.1

NE .3 .1 .1 .6 4.£

ENE .1 .1 .2 4.5

E .2 .7 .9 3.5

ESE .2 .1 .1 .4 4.C

SE .7 .. .1 .3 1.7 5.5

5SE 1.1 2.2 2.1 1.1 .1 6.7 7.1

S 3.3 5.p 1.6 .9 * 12.7 5.i

SSu 3.9 2.0 .1 6.0 3.C

Si 2.1 1.3 .3 .1 3.9 3.7

WSW .8 1.8 1.8 .2 3.9 S.9

A 2.0 2.6 1.2 *1 5.9 4.7

WNW 1.3 2.3 .8 .3 4.8 S.C

N% l.A 1.7 1.8 *1 5.0 S.2

NNW 1.4 2.8 1.8 .1 6.q 6.5

VARIABLEI

TOTALS I 21.6 27.C 18.6 5.1 .8 100.0 3.7


Tv-

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS

AT1 EATHER SERV!CE/MAC

STATION NUMBER: 72622S STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7-B7

MONTH: SEP HOURS(LST): 0900-1100

.............................................................................................................................wIND SPEED IN KNOTS

DIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-o 411-7 48-55 GE 56 TcTAL MEAN

(OEGREESI W 8 WIND

...........................................................................................................................1.3 j S.D 2.0 .1 10.2 7.5

NNE 1.2 1.2 1.2 .1 3.8 5.4

NE I .9 2.3 .7 3.9 4.s

ENE .7 I.C .1 l.9 4.C

E 1.1 Z.C .7 3.8 4.5

ESE 1.1 2.2 .7 .1 4.1 Q.s

SE 2.1 3.6 2.7 1.3 .1 .1 9.9 6.s

SSE 1.9 5.4 6.8 5.4 .7 20.2 8.7

S 1.4 3.9 2.8 1.8 .1 .1 .1 10.2 7.5

SSW .8 .1 1.1 .3 .1 3.0 6.7

SW .4 .8 .6 .3 2.1 6.5

WSW .41 c 1.9 .1 .1 3.1 7.5

W .3 1.6 2.N .6 4.9 7.5

NNW .3 1.2 2.0 .7 4.2 8.C

NA .7 1.2 I.? 1.4 .1 5.3 8.6

PiN .9 .8 1.9 .9 4.4 7.7

......................................................................................... ................................................VARIABLE I

CALM //////// ///////////////////////// ///// /// 5.2 III

TOTALS I 15.7 32.2 30.1 1.1 1.3 .2 .1 100.3 6.5

.............................. .. .................................................. ............... ..................

TOTAL NEMBER OF OBSERVATIONS: 900

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Or OCCURRENCE OF SURFACE WIND DIRECTION VE&SUS WIND SFEEDUSA FEIAC FROM HOURLY OBSERVATIONSAIR WEATHlER SERViCE/MAC

STATI ON NUMBER: 12622,5 STATION NAME: PLA7TS8URGH AFt NY PERIOD OF RECORD: 78-81MONYT SEP HOURSILSII: 1200-1400

I WIND SPEED IN KNOTSDIRECTION 1 -3 11-6 710 11-16 17-21 22-27 28-33 34-40 423-41 '.8-55 GE 56 ICTAL MEAN

(DEG6EESP % WIND

...........................................................................................................................................N I 6 2.C 2.6 2.3 .1 7.8 8.7

PNNE I 1.0 1.2 1.2 .1 . S7

NE 1 .7 2.v 1.8 .1 6.4 5.4

ENE I .6 1.1 .7 2.35 5.3

L .9 2.9 1.2 5.0 5.2

ESE I .7 1.6 .4 .3 i.o &.c

SE V .6 3.3 3.6 3.1 . .110.8 8.1

SE I .9 2.8 6.8 10.8 1.1 .3 22.7 I0.5

S 2 .2 1.1 2.9 3.3 .6 8.1 1o1.5

SSW I .. 4.6 7.4

SW I .3 .8 .7 1i .9 6.1

WSW I .3 .9 1 .7 .4 .1 T.4 7.1

W I .3 .4 3.2 .8 .15.3 8. 3

WNW I .1 .6 2.6 2.8 .25.1 9.8

NW Ie. 2.0 2.0 .2 S.0 io.c

N4NW I .2 I.e 2.2 1.9 5.2 9.4

VAR IABLEI

CALFK 3.q lfl//

TOTALS I 8.4 23.8 33.8 27.2 2.7 .4 100.0 8.4

TOTAL NUMBER Of OBSERVATIONS. 900

.7 GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEO

USAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 7262Z5 STATION NAME: PLATTSBURGH AFr NY PEPIOD OF RECORD: 78-87MONTH: SEP HOURS(LSTI: 1500-1700

........................................ ........................................ ........................................

I WI1ND SPEED IN KNOTSDIRECTION | 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-80 41-47 88-55 GE 56 IcTAL MEANIDEGREES) 2 WIND

............................................................................................................................................N: 1.3 3.2 3.1 1.7 .3 10.0 7.6

NNE 1.8 1.7 .7 3.8 4.8

NE I 1.81 2.1 .7 4.2 U.5

ENE .7 1.4 .7 2.8 5*1

I 1.7 2.1 .8 N.2 4.c

ESE 1.0 1.8 .2 .1 2.k .i,

SE .9 1.6 2.2 .3 5.1 6.9

SSE 1.4 3.0 7.6 8.9 .9 17.8 9.2

s 1.1 3.1 S.2 3.2 .6 13.2 P.6

SSW 1.2 .8 .3 .6 2.6 6.2

SW .2 .7 .8 .11.4 6.7

WSW .3 .8 1.8 .2 .1 3.2 1.8

W .8 l.A 1.6 1,1 .1 5.1 7.7

WNW .3 1.P 2.8 .9 S.q 7.8

C NW ,. 1.7 8.2 1.1 7.1 p.'

NNW .7 1.1 3.2 1.2 .1 6.3 8.8

...-......................................................................................-.................................

VARIABLE I

TOTALS I i7 7o7 35.1 1S.4 2.1 100.0 7.1

...........................................................................................................................


GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFO NY PERIOD OF RECORD: 78-87MONTH: SEP HOURSLSTI: 1800-200C

...........................................................................................................................

WIND SPEED IN KNOTSDIRECTION I - N-6 7-I] 11-16 17-21 22-2? 28-33 3N-O NI-N7 448-55 6E 56 T(TAL m..AN

0 IDEGREESI | s WIND................................................................................................................................

2. 1.1 2.0 .7 . 8.2 5.5

NNE 1.6 .7 .1 .2 2.6 4.4

N E .1 . 1 .6 4.6

ENE .2 1 .3 4.7

1 .1 .1 2.

ESE .3 .1 .N 3,5

SE I .2 .8 1.0 7.4

SSE 1 . 2.0 1.1 1.1 5.7 6.7

S A.I 2.e 3.1 2.3 11.9 6.,

SSI 2.8 2.8 .6 6.1 3.e

SN 1.8 1.4 3.1 .3 4.7 5.c

WSV 1.3 1.9 .3 .1 3.7 N.3

W 2.0 3.@ 1.2 .N 7.4 5.4

WNW 2.8 3.3 1.0 .1 7.z N.3

NA I.7 2.3 1.1 .N 5.6 5.5

NNW 2.7 Z-P 1.4 .4 7.3 S.c

VARIABLE I

CALP 2//////// /////////////////// //////// ////// 7.2 Ifi/ll

TOTALS I 25.2 27.3 1.1 5.8 .3 100.0 3.9


.... ' - - .dW,-, .-... l l l i~il l ~ iii l

GLGBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINU OTRECTION VERSUS MIND SFEEDUSArETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: SEP HOURSILSTI: 2100-2300

..........................................................................................................................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-90 41-47 48-55 GE 56 ICTAL MEAN

4DEGAEES) I t WINO

.................................................................................................................................N 1.3 1.q 1.3 1.0 .2 5.3 7.L

"NE .4 .4 .3 1.2 4.6

NE .1 .1 3.c

ENE .2 .1 .3 3.L

E

ESE .1 .1 2.C

SE -2 -1 .3 2.7

SSE 1.- 1.2 .8 1.6 4.8 7.4

s 2.0 3.- 1.8 1.6 8.9 6.3

SSW 2.6 2.6 .3 5.4 3.8

SW 1.7 2.2 .9 .1 4.q 4.1

WSW .9 1.6 1.0 .1 3.6 5.4

W 2.8 4.C 1.7 .4 8.9 S.C

WNW 2.2 4.C 1.4 .2 7.9 S.C

NW 3.6 3.1 1.8 .2 8.7 4.7

NNM 1.4 2.4 1.4 .3 5.7 5.2

VARIABLE II- I

CALM /// /// ///////// ////////////////// // /// 33.9 //1/11

TOTALS I 20.R 26.8 12.8 5.6 .2 100.3 3.5

.............................................................................................................................................


.0i i

GLioAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAR WEATHER SERVICE/MAC

SIA)ION MUMBZRt 72622S STATION NAME- PLAISBURGH AFe NY PERIOD OF RECORD: 78-67MONTH. SEP HOURSILST): ALL

............... .........................................................................WINO SPEED IN KNOTS

,,U CtZON 1-3 8-6 7-10 11-16 17-21 22-27 28-33 34-0 l-A? 48-55 GE 56 T(IAL MEAN

......................................................................................................................................

$ 2. 3.5 2.S 1.2 .2 .0 701.9 7.2

V, .8 .8 .5 .a 0 2.3 S.C

4 - .6 1.0 .4 .0 2.0 4 .'

hi 1.9 Z.l 1.6 5 .2. .

.5 .7 *2 .1 .2

WNM .6 1.2 1.2 .6 .0 .0 6.7 7.,

SSI 1- 2.! 3.5 3.14 .3 10.0719.7

N 1.6 1.8 1.7 1 .7 .0 5.9 6.3

SS . -6 . 1 . 6.2 6.4

NW 1.9 2.2 1.7 .8 .06. 5.

NNW 1.5 2.2 1 .? .8 .0 6.7 6.4

VARIABLE

CALP ill /ll l llll liii lil llillll/llllllllllll/llll/llllllllll/lll/ll/ /lllll.'(llllll 22.5 ItiIl

TOTALS 19.6 26.4 20.3 10.2 .9 .1 .0 100.0 S.C

TB

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SFEEOUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 726225 STAIION NAME: PLATSBURGH AFB NY PERIOD OF RECORD: T-ATMONTH: OCT HOURSILSTI: O000-O20O

.....................................................................................................................................I WNO SPEED IN KNOTS

DIRECTION | 1-3 4-6 7-10 11-16 17-21 22- 2 1 28-33 34-40 41-47 68-55 GE 56 TCTAL MEANIOEGREES) % WINO

.............................................................................................. ...................................................N .9 1.7 2.0 .6 5.1 6.7

NNE .2 .2 2.C

NE N.z .1 .3 3.C

ENE

E .1 .1 4

.L

ESE .1 .1 6.[

SE .5 .3 .1 1.0 5.C

SSE .9 1.1 1.? .6 4.4 7.c

S 5.0 2.6 1.5 1.2 .1 8.4 6.4

SSW 2.7 Z.C .4 5.? 3.6

S 2.7 .6 .8 . 6.3 4 .C

WSW 3.1 .9 .8 .1 6.1 3.8

W 2.9 I.! 1.0 .1 .1 5.4 4.2

WNW 3.5 2.3 .9 .6 7.1 4.3

ANW 2.8 2.3 1.7 .5 7. 3 5.2

NNW 2.3 1.9 3.0 .6 7.9 6.1

VARIABLE 3

TOTALS 25.7 16.9 16.1 4.6 .6 100.0 3.2


Io

N

GLGBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEo

USAFETAC FRO" HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 72622S STAIION NAME: PLAITSBURGH AFS NY PERIOD OF RECORD: 79-87

MONTH: OCT HOURS(LSTI: 0300-0500

I WINO SPEED IN KNOTSDIRECTION I 1-3 9-6 7-10 11-16 17-21 22-27 28-33 39-90 91-97 48-55 GE 56 TCTAL MEANIDEGREES3 I % WINC

--...-.-..................--..............................-.-.-.--- °-.-.......°......°-..o..-........°--.-.-.-....-....°..

N 1.2 2.1 1.? .3 .1 5.7 6.2

NNE .6 .1 .1 . 2.5

NE .1 .1 2.C

ENE .2 .1 .t 9.7

E .2 .2 2.L

ESE .1 .1 Tl.C

SE .3 .3 .9 1.1 5.7

SSE .6 1.1 1.1 .5 .1 3.9 7.3

3.3 3.C 2.Z .8 .2 9.5 5.7

SSW 1.9 2.2 .9 .1 9.6 4.C

Si .. 7 1.3 1.5 .5 5.3 .R

WSW I 3.0 1. .6 .2 3.2 5.

W 3.1 2.7 1.7 .3 7.8 .A

WNW I .8 I.p .8 .2 6.6 3.e

N W 2.9 2.7 1.8 .9 7.8 5.L

NNW I.4 2.9 1.5 .6 6.9 6.4

................................................................................................................................................VARIABLE

CALM I //I/0j1/II" li / f f It I f / I 1.? 0, f / I 1 3//1/// 57.5 I!1111

TOfALS I 22.5 21.! 19.1 9.2 .1 .3 lO0.n 3.3

.................................................................................................................................

1OT1 NIMBE. 4r -ISERVATIONS: 930

L6'- * V :,

GLGBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY or OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEAHER SERVICE/MAC

STATION NUMBER: 72622S STAIION NAME:. PLATTSBURGH AFB NY PERIOD OF RECORD: 7A-87

MONTH: OCT HOURSILST): 0600-GAOL

I WIND SPEED IN ANOTSOI

9ECTION I 1-3 4-6 7-10 11-lb 17-21 22-21 2A-33 34-40 I1-N7 68-55 GE 56 TTAL MEAN

IDEGREESI I t WINE

N I .9 2.R 1.3 1.? ,1 6.~ 6.s

NNE .3 .6 .9 4.1

NE .2 .1 .7 .5 5.;

ENE .3 .2 .1 .6 3.E

E

ESE I .I .1 .,

SE .2 -4 .2 , S 5.1

SSE . 1.3 1.6 .9 .2 4.1 E.c

s 2.9 3.9 2.4 1.2 .1 .1 1c.5 b.]

55W 3. 1 6.2 3.7

SR I .1 I.- .6 .3 5.3 3 .'

WSW 1.4 3 . 3 .6 .5 3.9 .1

A 3.2 2. 1.1 .3 6.? 4.5

ANW 2.9 2.4 1.9 .2 1.t. N.7

NW 2.3 2.2 1 .9 3. 6. 6o3

NNW 1.2 1 .9 2 .4 .6 6.1 6.6

.............................................................................................................................................VAR IABLE I

CALM f// ///// /// / 3 3.3 /////1

TOTALS I 23.1 22.4 1.9 5.7 .49 ,1 100.3 3.1

1

TOTAL NUMBE(R OF OBJSERVATIONS: 930

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SFEDUSAFETAC FROM HOURLY OBSERVATIONSAIR dEATHER SERVICE1NAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF6 NY PEPIOD OF RECORD: 78-97MONTH: OCT HOURSILSTI: 0900-1100

WIND SPEED IN ANOSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-N? 40-SS bE 56 TOAL MEANIOE6RLErS I s WINL

N 1.2 Z6 N3 2.2 .1 i.7 7.7

NNE .8 1.1 .9 2.7 9."

NE .8 6 .3 1. 7 .

ENE ,3 . .2 1.0 ".L

L .9 .5 1.4 3.C

ESE .8 .1 1.3 '.7

SE 1.3 2.2 2.6 1.7 7.7 .

SSE 1.6 q.1 5.1 9.6 .5 16.' .

S I 2.3 3.7 3.8 2.8 .3 .1 I?. ? '.F

SSW 1 1.8 .g .19 .1 2.9 9.

Si .5 .8 1.2 .8 .1 T. 1.?

WSW e* *8 1.8 1.0 .3 9.7 '.'

W .4 1- 2.4 .8 .2 '.I

WNW .6 1.! 2.8 . .1 . 1

NW .4 .5 3.3 1.3 .

NNW .5 1.t 2.9 1.0 .. 7

CALM f // f I// 11 //If/ i/l 1 12.~ 1 11"

7OTALS f 14.2 2. 7 .2.7 16.9 1.7 .1

. . .........................................................................................................................

TOTAL NUMBER Or OBSERVATIONS: 930

*

2 e . * °. ° °* e . .° . . ' ° ' . . . ° ° . ° ° * ° . . .

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND StEED



STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-8?

MINTH: OCT HOURStLSTI: 1200-1400

I WIND SPEED TN KmOs

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-5S GE 56 TETAL MEAN

(DER.EES) I W IND

............................................................................................................... ......N , 6 1.2 3.5 1.4 .2 "7.? .

NNE .3 1 . 1.1 2.7 6.C

NE 1.3 1-6 1.2 4.1 4.E

EN~E I .8 1.2 .4 2.4 4.5

L 1.9 1.7 .3 (4.! 3.E

ESE I 1.0 2.4 *'4 3.F 4.4

SE .9 2.6 3.7 2.9 .3 10.s 8.f

SSE 1.1 4.1 6.2 7.4 1.0 19.q lO.c

".6 1.9 3.2 2.6 .4 .1 9.9 9.4

SSW .2 .1 .3 .2 ,c V.C

SW . 1.C 1.2 .1 2.7 6.7

WSW .5 .9 1.4 1.2 .4 4.4 (4.4

W .6 I.C 3.2 1.5 6.3 8.5

.Nk .3 1.7 3.5 1.4 .2 .1 7.3 8.E

NW .e 3.R 2.4 6.9 9.6

NN .2 .9 1.6 .B 3.4 8.1

V kIABLE

TOTALS I 10.9 24.4 35.2 21.8 2.6 .2 100.0 7.s


GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS W N FEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: OCT HOURSILS|I: ISUD-1700

........................................................................................................ ...................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 1-4i 88-55 SE 56 T(TAL MEANtOEGREES) I W WIND

............................................................................................................................................N 1.8 2- 3.2 .4 7.8 6.1

NNE .9 1.9 .9 3.7 .6

NE 1.4 2.! 1.0 .1 4.7 4.e

ENE .6 .9 .2 1.7 4.2

E 1.7 1.2 2.9 3.C

ESE .6 .8 .1 1.5 4.1

SE l.4 1.5 1.3 .6 .1 4.9 6.5

SSE 1,4 3.8 6.2 4.1 .3 15.5 8.4

s 2.3 2.6 3.8 2.7 .5 .2 12.0 6. 3

SSW .5 .4 .2 .2 1.4 5.6

SW .3 .9 .5 .1 i.8 S.e

WSW .6 .8 1.2 1.2 3.8 7.7

W .6 2.7 2.8 .9 7.0 7.2

WNW 1.4 2.6 3.3 .9 8.2 6.8

NW .9 1.5 2.2 1.7 6.2 7.5

NNW 1.0 1.9 2.0 .9 5.q 7.L

VARIA110

CALF ljiiI/ /II,///iII/I/II////'JiII'i''I/ /'/II///'//,///JII // /iI //#/I/III'/ 11.3 /.III

OTIALS 17.5 27.6 28.8 13.9 1.0 .2 100.0 6.2

...........................................................................................................................


GLGBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS MINO SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAl; WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFe NY PERIOD OF RECORD: 78-S7

MONTH: OCT HOURS(LSTI: 1000-2000

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 3S-4D N1-7 48-55 GE 56 TOTAL MEANIDEGREESI I I WIND

N 2.9 1.8 1. .5 .1 6.8 5.3

NNE .9 .9 .2 1.9 4.1

NE .2 .2 .2 .6 S.C

ENE

E

ESE .1 .2 .1 .4 S.8

SE .N .2 .2 .9 7.8

SSE 1.2 1.4 2.5 1.2 6.2 7.t

$ 2.8 3.4 1.8 1.8 .1 .1 10.1 6.5

6SSW 2.c 1.4 .8 4.2 4.C

S I 1.6 1.5 .2 3.3 3.8

WSW 1-I 1.c 1.0 .2 .2 3.4 6.6

W 4.4 3.5 1.7 .3 10.0 4.5

WNW 3.4 2.5 .8 .1 6.9 4.G

NW 3.C 2.7 1.0 .1 6.8 6.2

NNW 2.2 4.2 .6 .9 7.8 5.1

VARIABLE I

TOTALS I 2S.1 25.1 12.6 5.S .6 .1 100.0 3.6


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND OIRECTION VERSUS WIND SFEEDUSAFETAC FRO" HOURLY OBSERVATIONS

AIR MEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS MY PERIOD OF RECORD: 78-8T

MONTH: OCT HOURSILSTI: 2100-2300

I MIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE S6 TOTAL MEANIDEGREES) I x WIND

N 1.1 1.S 1.4 .2 4.6 S8

NNE .6 .2 .1 1.0 3.3

NE .2 .1 -3 3.3

ENE .2 .3 .3 4. 3

E .2 .2 1.5

ESE .3 .3 1.3

SE .1 .2 .2 .1 .6 6.7

SSE .9 .9 2.4 1.2 .2 5.5 8.3

S Z.4 2.4 2.0 1.2 .2 8.2 6.4

SSW 2.3 1.8 .1 4.2 3.4

S I 2.2 1.9 .B .1 4.9 4.1

WSW 1.0 1.3 .9 .3 3.4 S.6

W 2.9 3.S 1.4 .4 8. 3 S.C

WNW 2.0 3.1 .8 .1 6.0 4.k

NW 3.2 2.S 1.8 .3 7.8 S.C

NNW 1.7 1.9 2.8 .2 .1 6.8 6.4

VARIABLE

CALM 37.14 ImIII

TOTALS 2I. 21.e 14.7 4.2 .4 .1 100.0 3.4


~-A

GLBAL CLIMATOLOGY BRANCH PCRCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WINO SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 7262ZS STATICN NAME: PLATTSBURGH AFO NY PERIOD OF RECORD: 78-87MONTH: OCT HOURSILSTI: ALL

..........................................................................................................................

I WINO SPEED IN KNOTSDIRECTION 1 1-3 A-6 7-10 11-16 17-21 22-27 28-33 38-10 81-87 48-SS GE S6 TcTAL MEANIDEGREESI I 2 WIND

N 1.3 2.1 2.4 .8 .1 6.7 6.7

NNE I .6 1.7 4.7

NE .6 .6 .8 .0 1.6 4.6

ENE .3 .3 .1 .A 4.4

L .6 .4 .0 1.1 3.3

ESE .3 - .1 .0 1.0 4.4

SE .6 1.C 1.1 7 .1 3.5 7.5

SSE 1.0 2.2 3.8 2.6 .3 .0 9.5 8.7

S 2.8 2.9 2.6 1.8 .3 .1 .0 10.1 7.1

SSW l.9 1.3 .8 .1 3.7 4.c

SW 1.5 1.2 8 .2 .0 3.8 5.1

SW 1-1 1.C 1.0 6 .1 3.9 6.7

W 2.3 2.3 1.9 .6 .0 7.1 5.7

WNW 2.3 2.2 1.8 .6 .0 .0 6.9 5.7

NW 1.9 3,Q 2.2 .9 6.9 6.3

NNW 1.3 2.1 2.0 .7 .0 6.2 6.5

VARIABLE

CAL 1 I //1/// /Iij /I 25.7 1///1

TOTALS 20.1 22.L 2D.8 9.6 .9 .1 .0 100.0 8.8


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREDUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIG WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-B7

MONTH: NOV HoURSLSTI: 0000-0200


DIRECTION | 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 91-17 98-55 GE 56 TCTAL MEAN

IDEGREES) I I WIND

N 1.7 3.7 2.2 .8 8.3 6.3

NNE ." .3 .1 1.1 3.9

NE .2 .2 3.3

ENE I .3 .1 .4 3.,

E .2 .2 2.C

ESE I.1 .1 4. L

SE .3 .2 .2 .1 , 5.b

SSE .9 .9 1.7 1.3 .1 4.9 6.5

S 1.9 2.6 3.7 2.9 .2 11.2 8.;

SSW 1.2 1.6 .9 3.2 4.C

Sw 1.3 1.3 .6 .1 3.3 9.7

WSW 1.0 1.0 .9 .3 .1 3.3 6.3

W 1.8 2.4 2.2 .7 .1 7.2 6.9

WNW 2.3 1.9 1.4 1.0 6.7 5.9

NW 2.2 2.3 3.0 1.8 9.3 7.1

NNW 1.7 2.4 2.3 1.1 7.6 6.6

VARIABLE I

TOTALS I 17.8 21.1 18.8 1c.1 ,9 .1 100.0 4.5


AL - --

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PEPIOD OF RECORO: 78-87MONTH: NOV HOURSILSTI: 0300-0500

I WIND SPEED IN KNOtSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-5s GE 56 TICAL MEANIDEGREES)I f MIND

N .6 3.1 3.7 .8 8.1 7.2

NNE .6 .8 .3 .1 I.R 4.6

NE .7 .7 2.3

ENE

E

ESE .2 .1 .1 .4 4.3

SE .3.7 .1 .4 1. .3

SSE .7 1., 1.3 .9 4.1 7.4

S 3.3 2.3 2.3 2.1 .1 10.2 6.7

SSW 1.8 1.8 .8 .2 3.9 8.5

SW 1.7 -1. .2 .3 3.7 4.5

WSW 1.6 .7 1.8 .6 8.2 6.2

W 2.3 2.7 2.6 .7 8.2 4.8

WNW 1.0 2.3 1.4 .9 5.7 6.k

Nb ] .9 2.8 2.0 2.3 .1 8.8 7.8

NNW 1.7 2.9 2.0 .7 .1 7.3 b.C

VARIABLEI

CALP I j/////ft/ 31.3 III

TOTALS 18.6 22.C 18.2 9.6 .3 100.0 8.3

...........................................................................................................................................


0A

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 72622S STATION NAME: PLATTSBURGN AF9 NY PERIOD OF RECORD: 78-87MONTH: NOV HOURS(LSI): 0600-0OO

I WIND SPEED IN KNOTSDIRECTION I 1-3 N-6 7-10 11-16 17-21 22-27 28-33 34-40 NI-Ni 48-S5 GE 56 TOTAL MEANIDEGREES1 I a WIND

e ~ ee~eo .eee .............................................................................e~ ee

Nl18 3-4 3. 1.0 9.4 6.6

NNE .2 1.6 e9 .1 2.3 5.5

NE .3 .4 .1 . 4 9.5

ENE .2 .2 4.5

ESE .2 .' 3.0

SE .1 .4 .3 .1 1.0 7.4

SSE .9 1.! 1. .9 4.6 ?.1

S 3.6 I.q 2.3 .8 9.2 6.2

SSW 1.9 2.2 .6 .1 4.8 4.3

SN I 1.9 1.2 1.1 .1 4.3 4.7

WSW 1.9 1.2 1.9 .1 .1 4.9 5.2

W 2.0 Z.C 2.1 .9 .1 6.7 6.1

WNW 1.1 3.2 2.0 .7 .1 7.1 6.4

NV 1.4 2.8 2.2 1.9 .1 V.4 7.N

NNV 1.4 2.1 1.7 1.1 6.3 6.6

............................................................................................................................VARIABLE I

CALM 29.7 I11111

TOTALS I 18.8 24.0 le.; a.9 .4 100. l .3

............................................................................................................................


Ah___A

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIN 0 SFEEOUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH4 AFB NY PEI00 OF RECORD: 78-87MONTH: NOV HOURSILSTI: 0900-1100

I WINO SPEED TN KNOTSDIRECTION | 1-3 1-b 7-I0 11-16 17-21 22-27 28-33 Sb-NO NI-NT 46-5s GE 56 TOTAL MEANIDEGREESI I t WINC

1.3 3.7 4.7 1.6 11.2 7.2

NNE 1.0 1.2 .6 2.A 4.7

NE .7 .9 1.6 3.8

ENE I .7 .1 .1 2.

E .6 .2 .1 .9 3.b

ESE I N .1 .1 .9 3.6

SE 1.0 1.3 1.0 .8 4.1 6.8

SSE )-2 2.1 %.a 1.3 .6 9.? 8.,

s 2.9 3.8 2.9 2.Z 1.1 12.9 7.8

SSW 2.Z 1.7 .3 .3 4.6 4.7

SW 1.2 .N 1.7 ,N .1 3.9 6.8

WS5W I .8 1.1 1.1 .8 3.7 7.3

W ,4 1.8 3.0 1.7 .2 7.1 8.8

WNW .3 l1q 3.3 1.8 6.9 8.7

NW 1.0 .q 3.2 2.2 7.3 8.8

MAIM 1 .9 1.9 2.2 2.N 7.4 a,'

VARIABLE

CALF I //I1/////// 1/11// 1 14.7 1///// IN.7 Ullll

TOT ALS I 6.7 22.P 28.3 15.6 2.0 10C.0 6.4

TOiAL NUMBER OF OBSERVATIONS: 900

AI-ASL L

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB MY PERIOD OF RECORD: 78-87MONTH: NCV HOURS4LST): 12GO-40O

I WIND SPEED IN KNOTS019ECTION I 1-3 N-6 7-10 11-16 17-21 22-27 28-33 34-N0 NI-17 48-55 GE 56 TcTAL MEANIDEGREES) I t WIND.... .. . .. .......... ........ ...... ......; .... ..... : ;...... .. .. .......... ..... ... .. .... ........... ..... ;....

N 1.4 2.e 8.80 .9 .1 10.0 1.1

NNE .9 1.7 .6 .1 3.2 5.1

NE |.01 .T .3 2.8 4.2

ENE .9 .N .6 1.Q 4.

E 1.8 1. .1 3.2 3.4

ESE 1.1 .7 .1 1.9 3.2

SE .8 2.1 2.3 1.8 .1 6.8 7.6

SSE 1.0 3.9 5. 1. . 1.0 15.4 9.1

S .7 1.9 N.N 2.8 .9 .1 10.4 9.6

SSW .7 .7 .7 .i .1 2.2 6.4

SW .3 .7 1.3 .8 3.1 R.2

WSW .1 .2 1.3 1.3 3.0 10.2

W .N 1.7 8.3 2.1 8.6 8.7

WNW .3 .8 2.4 2.8 6.3 9.6

NW .2 .8 3.9 3.2 .6 8.7 10.E

N8W .2 1.3 2.0 2.3 .3 6.2 9.e

............................................................................................................................................

VARIABLE

CALM I//// // ///U I/I/ //I 6.6 IIt//l

TOTALS 12.3 21.6 38.7 21.7 3.1 .1 100.3 7.8

............................................................................................................................................


AIL- -A -

GLCBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAl. WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 7B-87MONTH: NCV HOURSILSTI: 1500-1700

I WINO SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 ZZ-

27 28-33 34-40 41-47 48-55 GE 56 TETAL MEAN

IDEGREES)I I % WIND

..............................................................................................................................N 2.2 3.2 4.0 1.6 11.0 6.k

NNE 1.2 2.C .2 3.4 4.1

NE 1.4 .e 2.2 2.t

ENE .7 .2 .1 1.0 3.6

E .7 .3 2.0 3.3

ESE .7 .1 .1 .9 3.1

SE .7 1.1 .9 .9 3.6 7.1

SSE 1.3 Z.9 4.6 1.8 .1 10.7 7.8

S 3.2 3.7 4.4 3.2 .7 .3 15.6 6.1

SSW .6 .7 .3 .1 1.7 5.i

Su 1.0 .9 2.4 .7 4.0 b.S

WSW .4 .0 1.3 .4 .1 .1 3.2 B.4

W .9 1.9 3.1 1.1 .1 7.1 7.S

WNW .7 1.9 3.4 1.4 ,1 7., 8.2

NW 1.1 2.4 3.3 2.9 .3 10.1 4.6

NN6 1.6 1.2 2.1 .9 5.8 6.7

VARIABLE I

CALM 11.2 /1////

TOTALS I 18.3 24.1 29.4 15.0 1.3 .6 100.0 6.5

..............................................................................................................................


AL-_

GLLBAL CLIMATOLOGY BRANCH PE9CENTAGE FREQUENCY or OCCURRENCE OF SURFACE WIND OIRECTION VERSUS NINO SFEEO


Ali WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERID OF RECORD: 78-B?MONTH: NCV HOURSILSTI: 1800-2U0

...........................................................................................................................I WIND SPEED TN KNOTS

DIRECTION 1-3 4-b 7-10 11-16 17-21 22-27 28-33 38-410 4-47 q8-55 GE Sb T(TAL MEAN

4DEGREES1 % 1 WIND

N I .8 2.1 3.2 . 7.1 6.1

NNE .3 .3 *K .1 J.2 5.7

NE .b .2 .9 2.S

ENE

1 I * .8 2.3

ESE . ..3 .8 2.9

SE .2 .k .1 .1 1.7 5.7

SSE .3 1.6 1.7 1.0 .3 8.9 8.t

S 2.9 3.1 2.8 2.9 .7 12.9 7.7

SSW 1.1 1.8 .6 .2 3.7 5.1

SW 1.8 1.2 .3 3.3 3.s

WSW 1.0 1. 1.6 .6 .1 8.8 7. C

W |.9

1.9 1.8 .7 .1 6.3 6.5

WNW 1.7 2.1 1.7 1.8 .1 7.n 7.1

NA I 2.9 2.9 3.1 2.9 .2 12.0 7.5

NNA 3.0 3.3 2.9 1.1 10.3 6.c

VARIABLE

TOTALS 19.3 2p.1 20.1 11.8 1.3 .1 .1 100.0 5.2

TOTAL NUMBEq OF ORSERVATIONS: 900

GLLBAL cLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLI OBSERVATIONS


STATION NUMBER: 726225 STATICN NAME. PLATTSBURGH AFS NY PERIOD Or PECORD: 78-87

MONTH: NOV HOURS(LSTI: 2100-300

WIND SPEED TN KNOTS

DIRECTION 1-3 4-6 7-10 1I-16 17-21 22-27 29-33 31-AD 8-87 48-S5 GE 56 T(TAL HEAN

(OEGREESI % WINO

N I 1.8 2.7 1.6 .9 .2 1.0 6.!

NNE -2 .8 .1 .1 .9 5.

NE o. .2 2.C

ENE .1 . c.c

E ,. .1 5.C

ESE .1 .1 .1 .1 . 7.3

SE .3 .1 .1

SSE 1.3 1.! 2.3 1.7 .2 6.9 6.1

S 2.3 2.S 3.0 2.1 .7 .1 11.0 F.1

SSW 2.2 1. .8 .1 4.3 3.5

S W .2 1.1 .9 .3 2.b 6.8

WSW .8 .p 1.2 .3 3.1 6.5

A 2.2 2.9 1.4 .7 .1 7.3 5.6

WNW 2.9 2-7 1.7 1.3 .1 8.7 6.1

NW 2.8 Z. 2.7 2.6 20.8 7.2

NNW 1. 2.6 2.8 1.9 .2 9.3 7.8

VARIABLE i

TOTALS I 19.1 22.2 18.2 12.2 1.8 .1 100.0 S.C


GLC8AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WINO DIRECTION VERSUS WIND 5SfEDUSAFETAC FROM HOURLY ORSERVAIIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STA1ICN NAME : PLATTSRURGH AFe NY PERIOD OF RECORO: 7P-87MONTH: NCV HOURSILSII: ALL

.... •.. ... ... .. * .. .... . . . ....I. * l * .o. *.. ................. . . . . . . . . . . . . . . . . . . . . . . . . . .

I WIND SPEED IN KNOTSDIRECTION 1-3 4-b 7-10 11-16 17-21 22-21 2e-33 34-4O N1-47 48-55 GE 56 TELAL MEAN

II .'Gg[~ I $ |t WNL.

.....................................................................................................................................0; 1., .4 3.2 3.4 1.o ,0 9. 6.e

£ ~ . 2.1 Pf

4dNh . .2 .3 41 2. C

.3 .2 .0 ., N.,

4 ~ L . .2 .0g, sr St ' . ,e ., .5 .0 2., L.

L I.

sit 1.0 1.1; 2.0 1.6 .3 .0 1.6 P

2.6 2.0 3 2 2.5 .5 .1 11.? .,

5SA I .5 1.5 .5 .2 .0 T.' A.f

$w 1.2 1.0 .9 .3 .0 3." %F

WSW .9 .9 1.3 .6 .0 .0 1.4 7.L

w 1.5 2.2 2.6 1.0 .1 .0 T.T 7.

WNW 1.3 2.0 2.2 1.5 .0 .0 7',' 7.

NW 1,7 2.2 2.9 2.5 .2 q.4

NN k 1.5 2.2 2.2 1.5 .4 1, 7.

....--..- *,, ........ ,...,..,...,,, ... ,......., ........................ ,.....................

VARIABLE

701LS I 17.6 22.1 23.3 13.0 1.3 .1 .0 100.i S.


A,=

GLCEAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAlf WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFr NY PERIOD OF RECORD: 7P-B7MONTH: DEC HOURSILSTI: 0000-0200

I WIND SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 1T-21 22-27 ZP-33 34-40 42-47 48-SS GE 56 TTAL MEAN(DEGREES) I S WIND

. . . .N

. ... " " ".... .1 2.8 1.7

10.6 6.s

NNE .3 .9 .2 1.4 4.8

NE ,3 .1 .4 6.

ENE

E .2 .2 2.C

ESE

SE .1 .2 .1 -1 s5 7.L

SSE 1.2 . 1.7 1.5 .2 .2 5.6 9.r

s I 3.13 3.9 1.5 1.5 .3 11.2 6.4

SSW 2.3 2.6 1.1 .2 6.1 4..

SW 1.4 1.6 1.7 .2 4.9 5.s

USW 2.2 1.3 1.4 .3 5.2 5.3

W 2.6 1.7 1.6 1.0 6.n S.

WNW 2.3 1.7 1.0 1.8 .3 6.9 7.2

NW 1,7 2.0 1.5 1.8 .4 .1 7.6 7.5

NNW I.7

2.C 2.0 1.5 .2 7.S 7.3

CALP //////// ///// // / //// /// //// 24.8 It////

01 ALS 20.B 23.1 17.7 11.7 1.5 .3 IUO.D S.I

......................................................................................................................................

TOTAL NUMBER OF OGSERVATIONS: 930

.

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY Or OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEED



STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: TA-8iMONTH. DEC HOURSILSTI: 0300-0500


DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 43-7 48-55 GE 56 TLTAL MEAN

(DEGREES) I t WIND

..................................................................................................................N I 1.8 2.t e 2.8 1.5 .19.0 7.c

NNE .6 . .8 1.8 5.7

NE I .1 .1 12.C

ENE I . .1 .2 3.E

E .2 .2 4.C

ESE I ..1.4 3.8

SE .3 .1 .1 .1 .6 5.7

SSE .4 1.1 1.0 1.4 .1 .2 4.2 9.4

"5 3.3 3.7 1.9 2.3 .4 11.6 6.e

SSW 2.7 I.c 1.1 .2 4Q.9 4.6

SW 3.1 2.8 1.0 .3 7.2 Q.6

WSW 2.3 1.s .9 .2 4.. 4.5

2.0 2.? 1.9 .9 .1 7.6 6.2

WNW 1.5 I1. 1.3 1.6 .2 .1 6.6 7.8

NW 2.2 2.5 1.8 1.8 .4 8.7 7.5

NNW 2.4 1.6 2.4 1.0 .1 .1 7.5 6.7

VARIABLE If

TOTALS I 22.9 22.6 16.9 11.4 1.5 .4 10O.7 4.s

TOTAL NumBER 61 OBSERVATIONS: 930

4

GLGBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO S[EDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SrRVICE/MAC


MONTH: DEC HOURStLSTI: 0600-0800.........................................................................................................................................

I WIhO SPEED TN KNOTSDIRECTION I 1-3 N-b 7-10 11-16 17-21 2Z- 2 ? Z8-33 34-4O 4i-Ni 408-55 GE 56 TCTAL MEANIDEGREES) I WINO............................................. ............................................................................

N1. I.E 2.5 1.2 8.8 6.6

NNE 1.2 .6 .3 .2 2.4 4.E

Nt .2 .1 .2 .5 6.6

ENE I1 .1 4.L

E .2 .1 .3 2.7

ESE .2 .3 .5 N.c

SE .2 .2 .2 .3 3.0 8.1

SSE .3 .5 1.5 .11 .1 3.9 9.7

s 2.3 4.1 3.2 1.7 .2 II.9 7.c

5SS 2.3 3.N .8 .2 6.7 4.6

S 2.5 1.9 1.2 .6 6.2 5.,

WSW 1.7 1.1 1.3 .1 N.? 5.i

W 2.5 1.9 1.4 .5 .1 6.S 5.7

WNIW 1.7 1.9 1.9 1.2 .3 7.1 6.9

NiN 1.5 2.f I. 1.0 .1 6.0 6.6

NN V.7 2.6 1.5 2.5 S.3 7.5

C ALR Pq // /// ///// //// // / 26.1 111111

TOTALS I 20.3 21.1 17.5 11.2 .9 100.0 N.e

..........................................................................................................................TOTAL NUMBER OF OBSERVATIONS: 930

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO StEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICLIMAC

STATION NUMBER: 126225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-6SMONTH: DEC HOURS'LSTI: 0900-1100.. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. . ........... . . . . .. . . . . . . . . . . . . . .

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-b 7-10 l-lb 17-21 22-27 Z8-33 34-4O 1-147 48-55 GE 56 TOTAL MEANIDEGREES) I WIND

N ..2.3 3.2 3.3 1.4. .3 10. 7.j

NNE 1.1 .8 .3 .2 2.4 4.t

NE ,6 .5 .2 1.4 3.5

ENE .4 .1 .5 2.4

E .2 .2 2.C

ESE .3 .1 .4 3.[

SE .5 .e .1 .1 1.0 6.b

SSE 1.1 1.1 2.2 1.9 .3 .2 6.8 9.3

S 2.0 5.9 3.7 2.7 14.3 6.4

SSW 2.4' 2.9 1.4 .1 6.8 4.t

SW 1.2 1.6 1.7 1.0 .2 5.7 7.5

WSW .8 1.P 1.8 .5 .1 5.1 6.E

W .6 2.2 2.6 3.8 .3 .2 .1 7.A 9.5

WNW 1.1 1.3 1.7 1.6 .2 .1 .1 6.1 B.9

N v .9 1.4 1.6 1.4 .1 5.4 8.C

NNW 1.5 1.2 1.7 2.3 .3 7.0 8.7

CALP f /// /// I// if / //// f//0.0// /J,////I// fIIII1 /11 //11 18.6 ///0

TOTALS I 17.0 24.! 22.4 11.9 1.9 .6 .2 100.0 6.C

...................................................................................................................


BLCRAL CLIMATOLOGY BRANCH PERCENIAGE FREOUENCY OF OCCURRENCE or SURFACE WIND DIRECTION VERSUS WINI SFEEDUSAFETAC FROM HOURLY OBSERVATIONS

Ali, WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AR NY PEPIOD OF RECORD: T8-87

MONTH: DEC HOURSILSTI: 1200-14000 .... .... .... ..... ....... ..... E... .. '.. ;. ....................................................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 43-47 48-55 GE 56 TETAL MEANIDEGQEES) I % WIND

.........................................................................................................................."""''""9.0 7.3N 1.7 2.f 3.1 1.6 .1

NNE 1.3 1.9 1.5 .3 5.1 5.5

NE 1.9 .9 .4 3.2 3.t

ENE 1.1 .5 1.6 3.C

L .8 I.C 1.7 3.E

rSE .9 .2 .2 3.3 3.8

,E .6 1.6 1.5 .3 .1 .1 4,7 7.3

SSE .8 2.8 4.9 4.0 .5 13.0 9.!

9 2.0 4.8 4.5 3.4 .4 15.3 7.9

SSW .S I.C .2 1.7 4.N

SW .4 .8 2.4 .9 .1 4.5 8.9

WSW .9 1.3 1.3 .1 3.S 9.1

W 1.0 2.C 3.7 2.0 .3 9.1 8.7

WNW .4 .3 3.2 2.4 .4 .3 7.1 1

NW .3 .q 2.2 2.3 .1 .2 5.9 30.6

NNW .3 .9 2.3 2.3 .3 .1 6.1 10.6

.~~.................................................................. ....................................VABIARLE I

CALF /,/ it/ i I /I //// I i I //i/I /// Iit////I/// I itI I//II ////IIt I I/ I//I///I I/I//I/I., it/I/Iit/I // I It II I//.

TOTALS I 14.1 22.9 31.4 20.8 2.5 .9 100.0 7.61

..........................................................................................................................


GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SFEED


STATION NUMBER: 726225 STAICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: T8-87MONTH: DEC HOURSILSI2: 1500-1T00

.........................................................................................................................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

IOEGREES) I % WINE

..........................................................................................................................N 1.9

3- 2.7 1.6 9.8 6.6

NNE 1.4 2.5 1.2 5.1 4.$

NE 1.0 1.2 .2 2.o '.1

ENE .3 .1 .4 2.b

E .8 .3 1.1 2.6

ESE .4 .1 .5 3.L

SE .8 1.1 .3 .3 .2 2.7 b.t

SSE I .4 3.7 3.0 2.6 .1 .2 0.P 7.E

S 3.0 q.5 4.4 3.7 .6 16.0 7.6

SSW 1.1 I.S 1.0 .2 3.8 5.7

Sh i* 1.3 .9 .3 2.9 6.1

WSW .6 1.6 1.4 1.1 .3 5.2 8.6

.9 3.2 2.8 1.0 .1 8.0 T.1

WNW 1.6 2.3 2.7 2.0 .6 .1 9.6 8.6

NW .3 1.2 2.3 2.5 .4 6.7 IO.C

NNW .8 1.1 2.0 1.5 5.6 8.3

VARIABLE I

TOTALS I 16.7 29.1 21.8 16.6 2.2 .4 200.0 6.6


--b

L,-

GLCBAL CLIMAIOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFEIAC FROM HOURLY OBSERVATIONSAll WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PEPIOD OF RECORD: 78-97MONTH: DEC HOURSILST: IOC00-2000

.................... i........................................... ........... oto..... ................. .................

I WIND SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TOTAL MEANIDESREES1 A I WIND

1.9 3.9 3.1 .3 10.2 6.6

NNE .8 1.4 5 2.7 4.4

NC .1 .4 .5 4.4

ENE .1 .1 2 5.5

E

CSE .1 .2 .3 (4.

SE .3 .4 .6 .2 .1 1.7 7.6

SSE 1.2 1.8 1.9 1.D .4 5.9 7.S

S 3.7 4.0 5.2 2.5 .2 13.6 6.7

SSW 1.7 2.5 1.0 5.? 4.q

SN 1.4 2.2 .6 .1 .1 4.4 5.1

WS .9 1.8 .0 .3 .1 .1 4.1 6.6

W 2.3 1.9 1.6 .8 .3 6.9 6.2

WNW 1.8 2.5 2.4 1.4 .2 8.3 7.1

NA 1.7 3.q 2.4 1.3 .3 7.7 T.!

NNW 2.3 3.1 2.2 1.4 .2 9.2 6.7

VARIABLE

CALP 19.1i/III/III///////////////,/I//iIII//,I/I iU//IiIIII,/I/,/II 19.1 IlIIII

TOTALS 20.3 27.7 20.6 10.2 2.0 .1 100.1 5.3


AMI_

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FRE[U[NCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS

Alt WEATHER SERVICE/MAC

STATION NUMBER: 72622S STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 7B6ST

MONTH: DEC HOURSLSTI: 2100-2300

........................................................................................................ ..................

I WINO SPEED TN KNOTSDIRECTION i 1-3 4-6 7-10 11-16 17-21 2Z-27 28-33 34-4D 41-NT 48-55 GE S6 TCT&L MEAN

4OE6REES f I WUNL

N.3 3.1 3.8 1.2 .1 10.0 7.1

NNE .S 1.1 .2 1.F 4.6

NE I .2 2 3 3.[

ENE .1 .1 2.L

E

ESE .3 .1 .4 ?S

SE .1 .4 .6 .3 1.1 8.1

SSE .3 1.2 1.8 1.2 .3 4.9 9.1

S 2.6 2.9 3.8 2.3 .4 .1 12.1 7.5

SSW 1.9 2.2 1.0 .1 5.2 4.6

SW 1.8 I.6 1.0 .3 4.7 4.s

WSW 1.6 .1 1.0 .4 .1 4.2 5.e

W 1.8 2.2 1.9 1.2 .2 7.3 7.C

WNW 2.o 1.7 1.7 1.4 .1 7.0 6.7

NW 2.3 1-7 2.5 1.2 .8 8.4 7.6

NNK . 2.0 1.9 1.9 1.8 .3 8.1 7.6

CAL" 23.8VARIABLE I

4!TOTALS 19.1 2I.9 21.3 11.3 2.5 .1 100.0 S.Z


05

GLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND STEEDUSAFETAC FROM HOURLY OBSERVATIONSAIk WEATHER SERVICE/MAC

STATION NUNVER: 7?6225 STATION NAME: PLATISBURGH AFe NY PERIOD OF RECORD: 78-87MONTH: DEC H,.RSLSTI: ALL

I WIND SPEED IN KNOTSDIRECTION 1 1-3 9-6 7-10 11-16 17-21 22-27 Z8-33 34-40 11-47 48-55 6E 56 ICTAL MEANIDEOGREES) I I WIND

N I 1.9 3.3 3.1 1.9 .1 9.8 6.9

NNE .9 1.2 .6 .1 2.8 5.c

NE .5 .4 .1 .0 1.1 ,2

ENE .3 .1 .0 .4 3.c

c .3 .2 .5 3.1

ESE .3 .2 .0 .5 3.5

SE .4 .5 .5 .2 .1 .0 1.7 7.2

SSE .8 1.* 2.3 1.8 .3 .1 6.q 0.8

s 2.7 4.2 3.4 2.5 .3 .0 13.2 7.2

SSW 1.9 2.1 .9 .1 .0 5.0 9.7

SW 1.5 1.7 1.3 .5 .0 .0 5.1 6.L

WSW 1.3 1.9 1.2 .5 .1 .0 4.5 6.5

W 1.7 2.2 2.2 1.1 .2 .0 .0 7.5 7.1

WNW 1.5 1.7 2.0 1.7 .3 .1 "0 1.3 B.L

NW 1.4 1.1 2.0 1.7 .3 .0 7.n 8.1

NNW I 1.6 1.8 2.0 1.8 .2 .0 7.4 7.8

..........................................................................................................................................VARIABLE I

CALP I//// //l/m/i /if//// ffp// I md, I f i

t / / //

lf"flflow

l t l l 011111,fITOTALS I 18.9 29.5 21.6 13.5 1.9 .4 .0 100.0 5.7

..............................................................................................................................................


0..

GLUBAL CLIMATOLOGY qRANCH PERCENTAGE FREOUENCV OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIN WEAIHER SERVICE/MAC

STATION NUMBER: 726225 5TA1ICN NAME: PLA;TSBURGH AFB NY PERIOD OF RECORD: TB-87MON114: ALL HOURS(LSII: ALL


DIRECTION I 1-3 4-b 7-1 11-16 17-21 22-27 29-33 31-40 4I-7 48-55 GE 56 1CTAL MEAN

IDEGREES) I I WIND

N 3 1.3 2.c 3.1 1.5 .2 .0 8.5 7.6

NNE I .7 1.2 .8 .1 .0 .D 2.9 5.5

NE I .6 1.1 .6 .1 2.3 5.2

ENE I .5 .7 .3 .0 1.5 4.;

E I .7 I.C .3 4. 4.. '4

ESE I .5 . .2 .0 .0 1.5 4.7

SE I .7 1.3 1.3 .7 .1 .0 4.1 7.4

SSE 1.2 2.1 3.0 2.6 .9 .1 .0 9.9 8.8

S I 2.5 2.6 2.1 1.5 .3 . - 9.? 6.s

SSV I 1.6 1.1 .9 .1 .0 .0 3.2 '.;

SB I 1.2 1.3 .7 .2 .0 .0 .0 3.? 5.

WSW I 1.0 1.2 1.1 .4 .1 0 .0 3.9 6.5

I 1.6 2.3 2.2 .8 .1 .3 .0 7.1 6.6

WNW 3 I.( Z.C 1.9 1.0 .1 .0 .0 6.4 7.C

NW I 1.3 1.6 2.1 1.5 .2 .0 6.7 7.e

NNU 1.1 1.7 2.0 1.2 .1 .0 .0 6.2 7.6

..............................................................................................................................VAR IABLEI

CALM /.o////I I/I/f/ ///f I/,f/l//I/// / I / I f f t/ //I//// 22.0 III

TOTALS 1 17.8 29.3 22.2 12.0 1.5 .3 .0 100.0 5.4

TOTAL NUMBER OF OBSERVATIONS: P7643

rN

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEO


STATION NUMBER: 726225 STATION NAME: ILATTStURGH AFe NY pERIOD OF RECORD: 78-87

MONTH: ALL HOURSILSTI: ILL

CEILINGS ZOO TO 1400 FEET WITH VISIBILTIES 112 MILE OR MOREAND/OR

CEILINGS 200 FEET OR MORE WITH VISIBILIIES 1/2 10 2-112 MILES

.................................................................................................................................................I WIND SPEED IN KNCTS

DIRECTION t 1-3 4-6 T-1O 11-16 17-21 22-27 28-33 34-4u 41-14 48-55 GE Sb iL7TL HEAN

tDEGREESI I A WIND

N I 3*3 7.1 8.8 5.5 .9 .0 '"25.5 8 2

RNE r Z.2 2.8 1.3 .3 .0 6.? S.1

NE 1.5 1.5 .3 .1 3.4 4.1

"N [ I .8 .6 .1 .0 1.5 3.7

E .7 .4 .1 1.2 3.,

ESF .6 .6 .2 .0 1.4 N.!

SE .8 1.3 1.0 .3 .0 .0 3.5 6.3

SSE 1.1 1.8 2.5 1.5 .2 .1 7.2 8..

S 1.9 2.2 1.6 7.4 .4 .0 7.; 7.

SCSSW I .8 .6 .1 .0 .0 1.b 3.9

So .5 .8 .1 1.9 3.7

WS6 .4 .2 .1 .1 .7 4.7

W .8 .5 .3 .1 .1 .0 1.9 S.E

WNW I 7 .5 .8 . . 1.9 6.5

Ni I,. .7 .6 .4 .0 .0 2.9 6.j

NNV 1.5 2.1 3.0 1.8 .4 .0 .0 8.9 8.'

VARIABLE I

CALF t /////////////////////////////////////////////I////// I i/i/I /If/I IIf /11 23.5 /1S//i

TOTALS I 18.5 23.2 20.3 11.8 2.3 .3 .0 100.0 5.4

TOTAL MEMBER OF OBSERVATIONS: 6057

AL i

ppppppppp ALAALA IRDIRR TTTTTIITTT PDTPLPPDDOOpp PP AA AA NR RP IT n IT1Ipp PP AL A A rR RR 17I' DOpppppppTpp A A AL A --PRRrRt IT I V) D 0pppppppp AAAAAAAAAA ITTLRRRR T IPC 0 DPP AAAAAAAAAA kR R II 7 V3 D CPP ALA A A pp PP I I pC, 09PP LA AA LA RRI IT PPIIP-LOD

AP A L A pPR RA TI Pb3DCUDDO

a , - _-- I -_I 2 i - r .' . - . i • , _ _ -

CEILINf" VERSUS VISIILIV AND SKY COVER SLMMARICS

LEILING VERSUS VISIlILITY SUPMAQT:

THIS SUMMARY IS A RIVAAIATE FkREUENCY DISTRIBUTION BY CLASSES OF CFILOTG F-jM "C" THROUIGH EOQALTo

0R GREATER THAN 2DUl FEET AND At A SEPARATE CLASS "NO CEILING". VERSUY VirIVILITY y4 It-

CLASSLS FROM ZERO THROUGH EQUAL TO U REFAlER THAN I0 MILES.

DATA DERIVED FROM HOURLY OBSERVATIONS.

FREQUENCY DISTRIBUTION PRESENTED BY THE SIANDARD 3-HoUt TIME CROUPS DY MONTH, MONTHLY AND ANNUALLY CALL YLALS

COMBINED).

NOTES:

BEGINNING IN 1968, META& STATIONS E[PORTED VISIBILITIES TO 6 MILES AND OrQATEP THAN6 MILES. THEREFORE THE COLUPN EOR VISIBTLIT F5 EQUAL To OP GREATER THIS 15 MILESAPPEAR BLANK.

AS A RLLE, AIRWAYS STATIONS NORMALLY REPORI VISIBILITIES TO b MILES A4NP 7 OP CREATED. HOWEVERSOME STATIONS REPORT HIGHER VALUES. IHfkEFORF, THE I'! MILE VISIBILITY CCLUMN SOMETIMES CnNTAINSMALL PERCENTAGE VALES. HOWEVER, ThESE VALUES ARE GF LITTLE MEANING AN[ SH(ELr PCDISREGAPODED.

FOR MRFAR CIVILIAN STATIONS REPORTING "CAVOK", ALL CEILINGS AAOVE 505 FLET WERE SUPPRESSFDIn 5JL FEET. THEREFORE, NO PLPCENT VALUES APPEAR ABOVE S000 FEET.

CKY OVER SUMMARY:

PRESENTS PERCENTAGES OF SKY COVER IN EITHER loTHs OF CnvERAGE OR "AIRWAYS CLASSIFICATIONS".

RATA SUMMARIZER RY THF STANDARD 3-HOUR TIME GROUPS BY MONTH, -ON1THLY AND ANNUALLY (ALL vEARz COMPItEC).

ALSO PPESENTEU ARE MEAN SKY COVERS.

FUR AIRWAY STATIONS, THE CONVERSICN FPM IHE ARWAYS DESIGNATIONS TO IPIHS FqR PRLSLNTATTON ARC:

CLEAR U/10

SCATICR D 3/1

BROKEN -1 quo

O'!E;CAST IL/1i

GBSCURER lu /ID

SKY COVER SUMMARY UNAVAILARLE FI MLTER TLPDOI~.tr SIATTO'IS

S wan

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FkOM HOURLY OBSERVATIONSAlf. EATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PEPIOD OF RECORD: 78-87MONTH: JAN HOURSILS71: 0000-0200

CE IL IN6 VISIC41ITY IN STATUTE MILESIN 9 GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE ,E

FEET I 10 6 5 4 3 2 112 2 1 1/2 1 114 1 5/4 5/8 1/2 Y/16

1/4 ;

........................................................................................................................

NO CEIL I 38.5 35.9 40.2 40.2 40.. 40.3 40.3 o.3 40.3 40.3 40.3 41.3 40.3 41.3 47.3 mC.3

GE 20000 40.2 41.6 41.9 41.9 41.9 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 47.0 42.0

GE 180001 41.2 41.6 41.9 41.9 41.9 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.C 4 .0

GE ibOGl 40.3 i1.7 42.0 42.0 42.0 42.2 4Z.2 42.2 42.2 42.2 42.2 42.2 42.2 42.2 42.2 4 .26E 140001 40.5 42.0 42.4 42.4 42.4 42.6 42.6 42.7 42.7 42.7 42.7 427 42.7 42.7 42.7 42.7

GE 1200C 41.8 3.3 43.7 43.7 43.7 43.9 43.9 44.0 44 . 44.0 49.0 44.0 44.0 44.0 44. 44.(!

5E 100001 14.2 45.8 46.2 46.2 46.2 46.5 46.5 46.7 46.7 46.7 46.7 46.7 4b.7 46.7 46.7 4b.7

GE 900CI 44.2 45.8 46.2 46.2 46.2 46.5 46.S 46.7 46.7 46.7 46.7 46.? 46.7 46.7 46.7 4b.7

GE 80001 47.2 4e.9 49.4 49.4 49.4 49.6 49.6 49.8 49.8 49.8 4q.8 4998 49.8 49.8 49.8 49.8

GE 70001 49.1 51.5 51.9 51.9 51.9 52.2 52.2 52.4 52.4 52.4 52.4 52.4 52.4 52. 52.4 52.4

GE 60001 50.1 52.9 53.3 S3.3 53.3 53.7 53.8 54.0 54.0 54.0 54.0 54.0 54.0 54.0 54.0 !,4.j

GE 5oCl 54.1 57.5 58.1 58.1 58.1 58.4 58.5 58.7 58.7 58.7 5A.7 58.7 58.7 58.7 5 . .?GE 450CI 60.1 64.6 65.6 65.9 66.0 66.5 66.6 bb.8 66.8 66.8 66.8 66.8 66.8 66.8 66.8 66.8GE 40001 64.0 68.9 70.6 71.0 71.2 71.6 71.7 72.0 72.0 72.0 72.n 72.0 72.0 72.0 72.0 72.0GE 350CI 66.9 72.6 74.5 75.1 75.5 76. 1 76.2 76.7 76.7 7b.7 76.7 76.7 76.7 76.7 76.7 76.7

GE 30001 70.1 76.6 79.c 79.8 8O.6 81.3 81.8 82.3 82.4 82.7 82.7 82.7 82.7 82.7 8?.7 P2.7

GE 2'0C) 71.9 78.4 81.0 81.9 82.9 83.8 84.5 85.3 85.5 85.8 8S.8 85.8 85 8 A 85.8 85.8 ps.9GE 20009 73.9 81.2 84.2 e5.4 86.5 87.5 89.4 89.4 89.6 89.9 89.9 89.9 99.9 89.9 89.9 89.9GE 1901 '4.r 81.4 84.4 85.6 86.8 87.8 8.9 9D.0 90.2 0.6 90.6 91.6 90.6 QC.6 9n.6 40.6GE 150C 74.4 81.9 84.9 86.1 88.0 89.1 90.8 9Z.4 92.9 93.7 9T.8 93.8 93.8 93.8 93.9 93.9

GE 12009 74.7 82.3 85.3 86.5 88.4 89.5 91.3 93.0 93.5 94.4 94.5 94.5 94.5 9.5 94.6 94.6

IE 10009 74.8 92.4 85.5 86.7 88.8 90.0 92.0 94.0 94.6 95.8 95.9 95.9 95.9 95.9 96.0 96.0GE 90c 74.8 82.4 85.5 86.7 88.8 90.0 92.0 94.1 94.7 95.9 96.2 96.2 96.2 96.2 9(,5 96.3GE 80C 74.8 82.4 85.5 F6.7 88.8 90.0 92.0 94.1 94.7 96.0 96.3 96.3 96.3 96.3 96.5 96.5GE 701 74.8 82.4 85.5 86.7 88.8 9c.0 92.0 94.1 94.7 96.0 96.5 96.8 96.4 96.8 94.9 96.9GE 6009 74.8 42.4 85.5 86.7 88.8 90.0 92.0 94.1 94.7 96.1 96.9 97.2 97.2 97.2 97.3 ql.3

GE 50C1 74.8 82.7 85.8 87.0 89.1 90.3 9z.q 94.6 95.3 96.7 97.7 98.2 98.5 98.5 94.8 98.8GE 4019 74.8 82.7 85.4 87.0 89.1 90.3 92.4 94.6 95.3 96.7 97.7 98.2 98.5 98.6 99.9 98.9GE 30c1 74.8 82.7 85.8 87.1 89.1 90.3 92.4 94.6 95.3 96.7 97.8 98.3 98.7 98.8 99.2 99.2GE 20C 74.8 82.7 85.8 87.0 89.1 90.3 92.4 94.6 95.3 96.8 98.0 98.5 98.9

9 9.D 99.5 99.7

GE 1009 74.P 92.7 85.8 87.o 99.1 90.3 92.4 94.6 95.3 96.8 98.C 98.5 98.9 99.0 99.7 IU.0

GE c9 74. 82.7 85.8 87.0 89.1 9C.3 92.4 94.6 95.3 96.8 98.0 98.5 98.9 99. 99.7 100.0


I-- i..-hih=im =i.-lw. -,

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VSIBILITYUSAFETAC FROM HOURLY OBSERVATIONSALi WEAIHER SERVICEIMAC

STATION NUMSER: 726225 STATION NAME: PLA7TSBURGH AF8 NY PEPIOD OF RECORD: 78-87

MONTH: JAN HOURS1LSI): 0300-0500

CE I ING VISIBILITY IN SIATUTE MILES

IN I G E CE GE GE GE GE G1 GE GE GE GE GE GE GE GE I,FLET I 10 6 5 9 3 2 1/2 z 1 1/2 1 1/ 1 3/4 518 1/2 5/16 1/4 0

NO CEIL 1 39.9 4C.0 90.1 40.3 40.3 40.3 40.3 40.3 90.3 40.3 49.3 4D.3 40.3 4C.3 40.3 4U.3

GE 2OOGEI 91.1 41.8 91.9 92.2 4Z.2 42.2 42.2 92.2 42.2 42.2 47.2 92.2 42.2 42.2 42.2 42.2GE 18001 91.1 N1.8 N1.9 4Z.2 '4.2 42.2 '4.2 42.2 42.2 42.2 4?.? 42.2 42.2 42.2 42.2 42 .2GE I 01 91.1 91.8 1.9 92.Z 42.2 92.2 42.2 42.2 '42.2 42.2 42.2 42.2 42.2 42.2 42.2 4Z.2

GE 1900C 1I 1.1 41.8 91.9 42.2 92.3 42.5 42.5 42.5 42.S 42.5 42.5 42.5 . 42.5 42.5 42 .5

GE 120U01 4 1.9 42.2 42.3 42.S 42.6 42.8 42.8 42.8 42.8 42.8 42.8 42.89 2.8 42.8 42 .8 42 .8

GE 100Cc) 99.7 45.S 45.6 45.8 95.9 96.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1

GE 90001 99.7 45.5 45.b 45.8 45.9 46.1 46.1 46.1 46.1 46.1 46.1 96.1 46.1 46.1 46.1 4L.1GE 80001 47.5 48.6 98.7 48.9 49.

0 49.2 49.2 49.2 49.2 49.2 49.2 q 9.2 99.2 49.2 4Q.2 49.2

GE 70IC 1 48.6 49.7 49.8 50.0 50.2 50. 0.4 504 50.9 50.9 50.4 50.4 50.4 5C.4 5-.4 5.4GE 690 0 49.7 5C.9 51.1 51.5 51.9 52.2 S2.2 52.2 62.2 52.2 57.2 52.2 52.2 52.2 52.2 52.2

GE SOC1 55.1 57.0 57.2 57.7 58.9 S8.7 58.7 58.7 58.7 58.7 58.7 58.7 68.7 58.7 69.7 58.7GE 45C01 61.4 63.8 69.4 64.9 65.8 66.2 66.2 66.5 66.5 66.5 66.6 66. 5 66.6 66.6 66.6 66.6GE 400C 65.4 68.2 69.9 70.1 71.4 71.8 72.9 72.3 72.3 72.3 72.3 72.3 72.4 72.,4 72.4 72.4GE 360 1 67.0 71.0 72.7 73.8 75.4 76.8 76.0 76.3 76.3 76.3 76.3 76.3 76.5 76.5 76.5 7b.6GE 31G C 71.3 76.3 78.8 80.0 82.5 83.0 83.4 83.8 $3 .8 A3.8 83.p 83.8 84.0 94.0 84.0 94.0

GE 261C 73.0 78.3 80.8 82.2 85.3 85.9 86.5 86.9 86.9 86.9 86.9 R6.9 87.1 97.1 87.1 87.

GE 200C 79.3 79.9 82.7 84.1 87.2 88.2 88.7 89.4 89.4 89.9 89.9 89.9 89.6 89.6 89.6 89.6GE 1800) 74.3 79.9 82.7 89.1 87.2 88.2 88.7 89.9 89.9 89.4 8q.6 89.6 89.8 R9.8 89.8 F9.8

GE ISrC1 74.5 80.1 82.9 89.3 87.4 88.7 89.8 91.1 91.1 91.2 91.9 91.5 91.8 91.8 91.8 91.9GE 3200) 74.9 80.5 83.3 84.7 87.8 89.1 90.2 91.6 91.6 91.8 92.0 92.3 92.6 92.6 92.6 92.7

GE 100C1 74.0 8C.9 84.1 86.5 88.6 89.9 91.2 93.1 93.1 99.1 99.5 99.9 95.3 95.3 95.3 95.4GE 9001 74.9 8C.9 84.1 85.5 L8.7 90.0 91.3 93.2 93.2 94.2 99.8 95.3 95.6 95.6 95.6 95.7

GE 8UCI 74.9 8C.9 84.1 855 88.7 90.2 91.5 93.4 93.5 94.7 9t.6 96.0 9b.5 06.5 96.5 '6.6GE 7G0) 74.9 8C.9 89.1 85.5 88.7 90.2 91.5 93.5 93.7 99.8 95.7 96.6 97.0 q7.0 91.0 97.1GE 6001 79.9 8C.9 84.1 86.5 88.7 90.2 91.5 93.5 93.7 94.9 95.8 96.6 97.1 97.1 97.1 91.2

GE SUC) 79.9 80.9 84.1 P5.5 88.7 90.2 91.5 93.7 93.8 96.2 96.7 96.8 97.6 97.6 97.7 97.8GE 4001 74.9 8C.9 84.1 A5.5 88.8 90.3 91.6 93.9 94.0 QS.9 96.3 97.1 98.1 98.0 98.1 98.2

GE 3Cc) 74.9 80.9 84.1 85.5 88.8 90.3 91.6 93.9 99.0 q5.4 96.5 91.4 98.3 98.7 99.1 99.2GE 20C 74.9 80.9 84.1 8S.5 88.8 90.3 91.6 94.3 94.4 95.8 96. Q 97.8 98.q '9.2 99.7 99.8GE loci 74.9 8C.9 84.1 855 88.8 93.3 91.6 99.3 94.9 95.8 96.9 97.8 98.8 99.2 99.8 1o.(,

GE C) 74.9 80.9 89.1 8S.5 88.8 90.3 91.6 99.3 94.9 95.8 96.9 97.8 98.8 99.2 99.8 101.O


S

GLLBAL CLIMATOLOGY BRANCH PERCENTASE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONs

AI£ wEATHER SFRVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORO: 76-ATMONTH: JAN HOURSILSTI: 0600-0800

CE SLING VZSIBILITY IN STATUTE MILES

IN GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE2 FlET ; 10 6 5 N 3 2 1/2 2 1 1/2 I 14 1 311 5/8 112 5116 1/N 0

NO CElL I 35.8 36.1 36.1 36.1 36.1 36.1 36.1 36.1 3b.1 36.1 36.1 36.1 36.1 36.1 36.1 36.1

GE 200001 38.5 38.8 38.8 38.8 38.:8 38.8 38 18.8 38.8 388 38.8 38.8 38.8 :8.8 3.8 38.8GE 1800I1 38.6 38.9 38.9 3 89 38 9 3 . 3 38 1 8. 38 . 8 9 3 3 38.9 36.9GE 600Ci 38.8 36.1 39.1 39.1 39.1 39.1 39.1 1 39 39.1 39.j 39. 39.1 39.1 39.1 39.1 39.1

G 190001 39 39.1 39.7 39. 99 7 39939 7 39.7' 39.7 39. 39.7 39.7 39.1 39.T 39.3

GE 120001 40.0 4C.4 40.5 90.5 90.5 40.5 90.5 90.5 4C5 40.5 NO., 40.5 NO.5 40.5 40.5 40.5

GE 100UC1 92.7 43.1 43.3 93.3 93.3 43.3 93.3 43.3 93.3 93.3 93.3 93.3 93.3 43.3 93.3 93.3

GE 90GCI 92.9 93.3 93.5 93.5 93.5 93.5 943.6 93.5 43.5 93.5 93.5 43.5 93.5 93.5 93.5 93.5GE 80001 95.8 96.2 46:6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6GE 7000 R 98N R9.1 99.6 99.6 99.7 99.7 99.7 99.7 99. 99.7 99.7 99.1 997 49.7 9.7 99.7GE 6f0 01 51.0 51.8 52.9 52.6 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.6

GE 5r00 55.3 56.8 57.5 58.3 58.6 58. 6 58.6 586 58.6 58.6 5P.6 58.6 58.6 58.6 59.6 58.6GE 4500 59. 6 61 .5 63.2 69.1 696 69.6 69.6 69.6 69.6 64.6 69.6 69.6 6 .6 9.6 69.6GE 9L001 63.7 66.6 68.8 69.9 70.6 70.6 70.6 7.6 70.6 70.6 79.6 70.6 70.6 70.6 73.6 70.6GE 35001 66.7 7C.9 72.8 79.2 75.3 75.9 75.6 35.6 15.6 75.6 7.6 75.6 75.6 75.6 75.6 75.6GE 300C1 70.8 75.1 78.3 79.7 81.5 81.7 82.3 82.9 82.9 82.5 82.5 8Z.5 82.6 82.7 87.7 82.7

GE 25001 72.8 71.7 81.3 82.1 89.7 85.1 85.8 85.9 85.9 6.0 8& 86.0 86.1 86.2 86.2 86.2GE 2000 73.1 78.6 82.3 83.7 85.8 96.3 87.7 88.0 88.2 88.3 8eN 88.9 88.5 88.6 886 88.a6

SGE 18001 73.2 78.7 62.5 83.9 86.1 87.0 88.5 88.7 88.q

89.0 6.1 89.1 89.2 89.9 89.9 89.9.E 15001 73.2 78.7 82.5 83.9 86.2 87.2 88.9 89.7 89.9 90.2 90.3 90.3 90.9 00,5 9n.5 90.5

GE 120C 73.2 78.9 82.7 89.1 86.5 87.5 89.2 9a.0 90.2 90.5 9n.6 90.6 90.9 91.0 91.0 91.0

GE 00CI 73.3 79.6 83.3 89.9 87.9 83.5 90.5 91.6 91.8 92.5 97.7 92,7 93.0 93.2 93.3 93.3GE 9001 73.3 79,6 83.3 84.9 87.9 88.6 90.8 91.8 92.0 92.8 93.1 93.3 93.9 99.1 99.

2 94.2

GE 80C 73.3 79.6 83.3 89.9 87.9 88.7 90.9 92.0 92.3 93.0 93.5 93.8 99.3 99.5 99.7 99.7

6E 7001 73.3 79.7 83.9 8.1 87.5 88.8 91.0 92.3 92.5 93.2 99.3 99.6 95.3 95.5 95.8 95.8

GE 6001 73.3 79.7 83.4 85.1 87.7 89.0 91.3 92.6 92.8 93.5 90.6 99.9 95.9 96.1 96.5 96.5

GE 500 73.3 79.8 83.5 85.2 87.8 89.1 91.5 93.1 93.3 99.1 95.3 95.7 97.0 97.2 97.5 97.6GE 90C 73.3 79.8 83.5 85.3 88.1 89.9 91.8 93.9 93.8 99.6 95.9 96.3 97.7 98.2 96.5 98.7GE 30C0 73.9 79.9 83.7 85.9 88.2 89.5 91.9 93.5 93.9 9q.7 96.1 96.6 98.2 98.7 99.0 99.2

GE 20C 73.9 79.9 83.1 85.9 88.2 89.5 91.9 93.5 93.9 94.8 96.5 96.9 98.5 99.1 99.5 99.9

GE 1OC 73.9 79.9 83.7 85.9 88.2 89.5 91.9 93.5 93.9 99.8 96.5 9b.9 98.5 99.1 94.5 99.9

GE Cl 73.4 19.9 83.7 85.9 88.2 89.5 91.9 93.5 93.9 99.8 96.5 96.9 98.5 09.1 90.5 100.0

7OTAL NUMBER OF ORSERVATIONS: 930

S

- .

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFEYAC FROM HOURLY OBSERVATIONS

Ali WEATHER SERVICEIMAC

STAIION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: JAN HOURSILSTt: 0900-1100

CE ILING VISIBILITY IN STATUTE MILES

IN I GE RE GE GE GE GE GL GE GE GE GE GE GE GE GE 6E

FLE I 10 6 5 4 3 2 1I2 2 1 1/2 1 114 1 3/4 5o'e 1/2 5/16 1/4 0

NO CEIL I 35.5 36.3 36.6 36.7 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9

GE Z00001 39.7 %L.8 1.1 41.2 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4

GE 18000I 10.6 41.7 42.0 42.2 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4

GE 16OCI 40.6 41.7 42.0 12.2 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4

GE " OECI 41.2 42:3 42.6 42.7 429 42.9 42.9 42.9 42:9 42. 9 42.9 49 £2.9 42,9 '2.9 42.9 42.9

GE 1200C1 42.8 43.9 44 3 %44 44.6 44 .6 4 .6 44 6 44.6 44.6 44.6 44.6 44.6 44.6 44.6 44.6

GE 100001 15.7 46.8 47.6 47.1 48.0 48.0 48.0 44.0 48.0 48.0 49.0 48.0 48.0 48.0 48.0 44.0

GE 900C) 46.1 47.2 48.1 48.2 48.4 48.4 48.4 48.4 48.4 48.4 49.4 8.4 48.4 46.4 4.4 48.4GE 80001 48.3 49.6 50.6 50.8 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0

GE ?0OCI 51.7 53.2 54.4 54.6 54.9 54.9 54.9 54.9 54.9 S4.9 54.9 54.9 54.9 54.9 54.9 54.9

GE 6000 54.5 56.0 57.2 57.4 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 59.0 58.0

GE SOOCI 57.3 59.4 60.6 61.1 61.9 62.0 62.0 62. 2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2

GE 450CI 59.9 62.8 64.5 64.9 66.1 66.2 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3

GE 40o0C 63.3 67.3 69.4 69.8 71.1 71.2 71.3 71.5 71.5 71.5 71.6 71.6 71.6 71.6 71.6 71.6

GE 35001 66.2 ?C.8 73:2 74.0 75.4 75.6 75.7 75.9 75.9 75.9 76.0 76.0 76.0 76.0 76.0 76.0GE 300CI 70.1 75.6 78.9 79.9 87.2 82.6 82.8 83.2 83.7 83.4 83.5 83.5 83.5 83.5 83.5 83.5

GE 250C1 71.2 76.9 80.4 81.5 84.2 84.8 85.6 86.1 86.2 96.6 86.7 86.7 86.7 86.7 86.7 86.7G, GE 20001 71.5 71.4 81.1 82.2 84.9 85.9 87.0 87.8 88.2 88.9 89.0 89.0 89.0 89.0 89.0 89.0GE 18001 71.7 71.6 81.3 82.4 65.2 86.2 87.6 88.6 88.9 89.7 89.8 89.8 89.8 89.8 89.8 89.8

GE 1500 711.7 71.7 81.4 82.5 85.4 867 8.5 89.6 90.2 91.5 91.7 91.7 91.7 91.7 91.7 91.9GE 120UC 71.9 78.1 82.5 83.7 86.9 88.2 90.0 91.1 91.7 93.0 93.2 93.5 93.8 93.9 93.9 94.1

GE IOOCI 71.9 78.7 82.5 83.9 87.5 88.8 913.8 91.8 92.7 94.0 94.4 94.9 95.2 q5.5 95.5 95.7GE 90c1 71.9 78.7 82.5 93.9 87.5 88.8 90.8 91.8 92.7 94.2 94.6 95.2 95.4 95.7 95.7 95.9

GE 01 71.9 78.7 82.5 83.9 87.5 88.8 91.0 9.0 93.0 94.7 95.2 95.7 95.9 Q6.2 96.5 96.7GE 7oCi 71.9 78.7 82.5 93.9 87.5 88.8 91.0 92.0 93.2 95.1 95.9 96.5 96.7 97.0 97.3 Q7.6GE 6001 71.9 78.7 82.5 93.9 87.5 88.8 91.0 92.0 93.2 95.1 95.8 96.7 96.9 97.2 97.5 97.8

GE 50 71.9 78.7 82.5 84.0 87.6 88.9 91.4 92.6 93.8 95.7 96.5 97.6 98.0 98.4 98.7 99.0GE 4101 71.9 78.7 82.5 84.0 87.6 88.9 91.6 92.8 94.1 96.1 97.0 98.2 98.5 98.9 99.2 09.6

GE 30c0 71. 78.? 82.5 84.0 87.6 88.9 91.6 92.9 94.? 96.2 97.1 98.3 98.6 99.0 99.4 99.7

GE 20Cf 71.9 78.7 82.5 840 87.6 88.9 91.6 4.7 94.2 96.2 97.2 98.4 98.8 99.2 99.6 9.9GE 1C 71.9 78.7 82.5 84.0 87.6 88.9 91.6 92.9 94.2 96.3 97.3 98.5 98.9 09.4 99.7 I1c0

bE C1 71.9 7b.7 S2.5 84.0 87.6 88.9 91.6 92.9 94.2 96.3 97.3 98.5 98.9 99.4 99.7 100.0


0"

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUNBEP: 72b225 STATICk NAME: PLATTSBURGH AiF NY PERIOD OF RECORD: 78-A7

MONTH: JAN HOURS(LSTI: 1200-1400

CEILING VISIBILITY IN STATuTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GELET I 10 6 5 4 3 2 112 2 1 112 1 11 1 3/4 5/8 1/2 5/16 1/4 0

................................................................................................................................................

NO CEIL 1 33.9 34.4 31.7 34.9 35.1 35.1 35.1 35.1 35.1 35.1 35.1 3S.1 35.1 35.1 3.l 35.1

GE 200oCj 38.2 38.7 39.0 39.2 39.4 39.4 39.4 39.4 39.4 39.4 30.4 39.4 39.4 39.4 39.4 39.4

GE iDoo1 38.8 39.4 39.7 39.9 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 4C.0 40.0 40.0GE 160001 38.8 34.4 39.7 39.9 40.0 40.0 40.0 40.0 40.0 4o.0 40.0 40.0 40.0 4C.0 40.0 40.0GE 1940001 39.4 40.0 40.3 40.5 40.6 40.6 40.6 40.6 40.6 40.6 4n.6 40.6 40.6 4C.6 40.6 40.6GE 1200CI 40.6 41.3 41.6 41.8 142.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 12.0

GE IDOCCI 43.5 44.2 44.8 15.2 45.5 95.5 q5.S 45.6 45.6 45.6 45.6 14.b 45.6 45.6 45.6 45.6GE 90001 44.1 44.8 45.5 4s.8 46.1 46.1 46.1 46.2 46.2 46.2 46.2 46.2 46.2 46.2 46.2 46.ZGE BOCI 46.5 4.6 48.3 48.9 49.2 49.2 49.7 49.4 49.4 49.4 49.4 9.4 49.1# 49.4 49.4 49.4GE 70001 49.7 51-3 51.9 52.6 53.2 53.2 53.2 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53-4GE 600CI 52.0 Sq.0 54.7 SS.4 56.1 56.2 56.3 56.6 56.6 56.6 56.7 56.7 56.7 56.7 56.7 56.7

GE SOO 56.1 5S.1 60.2 61.1 61.9 62.2 62.4 62.7 62.7 62.7 67.8 62.8 62.8 62.8 62.8 62.8GE 45001 58.3 61.8 63.1 64.0 64.8 65.1 65.5 65.9 65.9 65.9 66.0 66.0 b6.0 66.0 66.0 66.0GE 40Q0 62.5 67.1 69.2 70.1 71.4 71.6 72.6 73.1 13.1 73.1 7'.2 73.2 73.3 73.3 73.3 73.3GE 3SO0 66.1 71.3 73.7 74.6 76.0 76.2 77.3 77.8 77.8 77.8 74.0 78.0 78.1 78.1 79.1 78.1GE 30001 71.3 77.7 80.5 81.6 83.4 83.8 84.9 85.8 85.8 85.9 86.0 86.0 86.1 86.1 86.1 86.1

GE 2SO1 71.9 78.6 81.6 82.8 84.6 85.5 86.9 87.8 87.8 88.0 88.1 88.1 88.2 88.2 88.2 8A.2GE 201 72.7 71.6 82.7 83.9 85.9 87.0 88.9 9j.4 90.5 90.9 91.0 91.2 91.3 91.3 91.3 91.3GE 8OC1 72.7 79.6 82.7 83.9 86.0 87.1 89.2 90.8 91.D 91.3 91.4 91.6 91.7 91.7 91.7 91.13E ISoCI 72.7 8C.0 83.1 84.3 86.8 87.8 90.5 92.3 92.7 93.2 93.5 93.9 94.0 q4.0 94.0 94.0GE 12001 72.8 8C.2 83.3 84.5 87.1 88.2 91.0 92.8 93.2 93.8 94.2 94.S 94.6 94.7 94.8 94.8

GE IOOCI 72.8 8C.2 83.3 84.5 87.1 88.2 91.3 93.1 93.7 94.2 95.2 9S.5 96.0 q6.3 96.8 96.8GE 900 72.9 8C.2 83.3 84.5 87.1 88.2 91.3 93.1 93.7 94.2 95.2 95.5 96.0 96.3 96.8 96.8GE 80I 72.8 8C.2 83.3 84.5 87.1 88.4 91.6 93.4 94.0 94.5 95.6 95.9 96.7 97.0 97.4 97.4GE 70CI 72.8 8C.2 83.3 84.5 87.1 88.4 91.6 93.5 94.1 94.6 95.8 96.2 97.1 97.4 97.8 97.8GE 6001 72.8 8C.2 83.3 84.5 87.1 88.4 91.6 93.5 94.1 94.7 96.0 96.6 93.5 97.8 99.3 98.3

GE SOC| 72.8 8C.2 83.3 84.5 87.1 88.4 91.6 93.7 94.2 94.9 96.5 97.0 98.3 98.7 99.1 99.1GE %oCI 72.8 8C.2 83.3 84.5 87.1 88.4 91.6 93.7 94.5 95.4 96.9 97.4 98.7 99.1 99.6 99.6GE 30CI 72.8 8C.2 83.3 94.5 87.1 88.4 91.6 93.7 9,.5 95.5 97.1 97.6 98.9 99.4 99.9 99.9GE ZOCI 72.8 BC.2 83.3 84.5 87.1 88.4 91.6 93.7 94.5 95.5 97.1 97.6 98.9 q9.4 100.0 100.0GE 1001 72.8 8C.2 83.3 84.5 87.1 86.4 91.6 93.7 94.5 95.5 97.1 97.6 98.9 99.4 100.0 100.0

GE C| 72.8 8C.2 83.3 84.5 87.1 88.4 91.6 93.7 94.5 95.5 97.1 97.6 98.9 99.4 130.0 100.0

................................................................................................................................................

TOTAL NUMBER OF OSERVATIONS: 930

-

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUROENCE OF CFILING VERSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVATIONSAlf WEATHER SERVICE/MAC

STATION NUMBFR: 726225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF ECORO: 78-a7MONTH: JAN HOURSILST): 1503-1700

CE ILING VISIBILITY IN STAtUTE MILES

IN I GE GE GE GE GE GE GE EiT GE GE GE GE GE GE GE GEFEET 1 6 5 N 3 2 112 2 1 1/2 1 114 1 31 5/8 112 5/16 1/4 0

NO CEIL 1 38.2 38.8 38.6 38.6 38.6 38.6 38.6 38.6 38.6 38.6 3R.6 38.6 38.6 7.6 30.E '8.6

GE 200001 81.0 81.2 81.8 41.4 81.4 1 .4 81.8 81.8 81.8 81.4 81.8 41.8 41.8 81.8 41. 4 1 .8GE 180OI 81.6 81.8 4?.0 82.0 82.0 82.0 82.0 10.0 42.0 42.0 42.0 82.0 82.0 82.U 42.0 82.0GE 1600CC 41.6 8].8 42.a 82.0 12.0 82.0 82.0 12.0 82.0 42.0 q2.0 82.0 42.0 82.0 42.0 82.0GE 1400C 42.9 43.1 83.3 83.3 83.3 83.3 83.3 83.3 83.3 43.3 N93.3 N 3.3 83.3 43.3 83.3 83.3GE 120001 88.1 88.6 84.8 88.8 88.9 84.9 88.9 88.9 88.9 88.9 48.9 88.9 88.9 88.9 88.9 4.9

GE IGOOC| 88.0) 88.5 18.8 89.0 89.1 89.1 89.1 89.1 89.1 %V . 9.1 9.1 89.1 A9.1 89.1 89.1

GE 900C 48. 89.0 89.8 49.b 89.7 89.7 89.7 89.? 49.7 89. 7 819.7 89. 9.7 89.7 89.7 89.7GE 80001 50.6 S1.6 51.9 52.2 52.3 52.3 52.3 52.3 52.3 52.3 52.3 5Z.3 sz.3 52.3 52.3 2.3GE 700C1 53.3 58.9 55.6 55.9 56.0 56.0 56.1 5b.1 56.1 56.2 56.3 56.3 56.3 56.3 56.3 56.3GE boU0| 55.3 S1.2 58.1 58.6 58.9 58.9 59.8 59.5 59.5 59.6 59.7 59.7 59.7 59.7 59.7 59.7

GE 50001 58.2 6C.1 61.0 61.6 62.3 62.4 62.8 62.9 62.9 63.0 63.1 63.3 63.1 63.1 63.1 63.1GE 8500: 60.2 63.0 680 64.6 65.6 656.8 66.5 66.6 66.6 66.8 67.0 67.0 67.0 67.0 67.0 67.0GE 4C 65.6 68.8 70.0 70.8 71.9 2 .3 73.0 73.? 73.: 73:7 7'.9 73.9 74.0 78.0 74.0 78.0GE 33001 68.2 72.3 73.5 78.3 75.6 76.0 76.8 77.0 77.0 77.8 77.6 71.6 77.7 77.7 77.7 77.7GE 3o001 72.6 73.2 79.0 80.0 81.6 82.2 83.7 88.1 88.2 P8.7 88.9 88.9 85.1 85.1 85.1 85.1

GE 25001 73.5 78.6 80.8 81.9 83.7 84.7 86.8 87.8 87.6 88.3 89.6 88.6 88.7 98.7 8.7 88.7CE 2D001 78P.2 75.4 81.5 82.7 88.6 85.9 88.3 89.2 89.5 90.3 90.8 90.9 91.1 91.1 91.1 91.1

GE I8OCI 78.2 79.8 81.5 82.7 88.6 85.9 68.3 89.8 89.6 90.4 90.9 91.0 91.2 91.2 91.2 91.2GE 13001 78.6 80.1 82.5 83.7 85.7 87.1 89.8 91.2 91.4 92.6 93.1 93.3 93.5 93.5 91.5 -3.5GE IZ001 78.6 8C.1 82.5 83.7 85.7 87.1 89.9 91.8 91.9 93.2 98.0 98.2 98.8 98.8 98.8 98.8

GE 10001 70.7 80.2 82.6 83.9 86.0 87.8 90.2 91.8 92.5 98.1 9s.2 95.9 96.6 96.9 97.0 97.0GE 9001 78.7 8C.2 82.6 83-9 86.0 87.8 90.2 91.8 92.5 94.1 9S.2 95.9 96.6 97.u 97.2 97-2GE 8CI0 78.7 80.2 82.6 83.9 86.0 87.8 90.2 91.8 92.5 98.2 9s.8 96.1 96.9 97.3 97.5 97.5GE 700 78.7 8c.2 82.6 83.9 86.1 87.5 90.3 91.9 92.6 98.3 95.5 96.2 97.1 97.5 97.7 97.7GE 60C1 78.7 8.2 82.6 83.9 86.1 87.5 90.3 91.9 92.7 98.8 9s.6 96.3 97.2 97.6 98.0 98.0

GE 50 78.7 8C.2 82.6 83.9 86.1 F7.5 90.3 92.0 92.8 98.6 96.0 96.9 98.2 98.6 99.9 98.9iE 8OC1 74.7 8C.2 82.6 83.9 86.1 87.5 90.3 92.z 93.2 95.1 96.8 97.6 98.9 99.8 99.7 99.7GE 301c 74.7 80.2 82.6 83.9 86.1 87.5 90.3 9Z.2 93.2 95.1 97.0 97.8 99.1 99.7 103.0 100.0GE 20C1 78.7 8C.2 82.6 83.9 86.1 87.5 90.3 92.2 93.2 95,I 97.0 97.8 99.1 99.7 100.0 100.0GE 1001 78.7 8C.2 82.6 83.9 66.1 87.5 90.3 92.2 93.2 95.1 97.n 91.8 99.1 q9.7 100.0 100.0

GE .. 78.7 80.2 82.6 83.9 86.1 87.5 90.3 92.2 93.2 95.1 970 97.8 99.1 99.7 100.0 100.0


i-

GLL8AL CLIMATOLO6Y BRANCH PENCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIl WEATHER SERVICE/MAC

SIAT'ION NUMBER: 7Z62Z5 STATICh NAME: PLAT7SBURGH AFR NY PERIOD OF RECORD: 78-87MONTH: JAN HOURS(LSTI: I800-2000

CEILING VISIBILITY IN STATUTE MILESIN I GE EE GE G GE GE GE GE GE GE E GE GE GE GE GE

FEET I 10 6 5 A 3 2 112 z 1 112 1 1 /' 1 3/1, 5/8 1/2 S/16 11 0

NO CEIL I 39.' 39.' 39.' 39.4 39.4 39.4 39. 39. 39.' 39.' 39.'. 39.' 39.4 39.' 39.' 39.'

GE 200001 91.8 '1.8 '1.8 1.8 '1.8 41.8 41.8 41.8 41.8 .1.8 41.8 41.8 '1.8 41.8 41.8 41.8GE 180001 .1.0 '1.9 '1.9 41.9 1.9 .1.9 '1.9 '1.9 41.9 '1.9 '1.9 41.9 '1.9 '1.9 '1.9 .1.9GE 1600CI 41.9 '1.9 '11.9 '1.9 '.1.9 1#1.9 '1.9 '1.9 .1.9 '1.9 41.9 1l.9 '.1.9 N1.9 41.9 '1.9GE 1'0 0I '2.9 '2.9 '12.9 42.9 '2.9 '2.9 42.9 '2.9 '.2.9 '2.9 '2.9 '2.9 4. 9 '2.9 92.9 42.9

' GE 120001 4.1 44.4 44.16 44.4 44.4 44.4 44.4 49.41 44.4 44.4 44.4 14.4 49.4 [email protected] 44.4 44.4

GE 100001 0.8.5 '.8.9 '.8.9 8.9 '.8.9 98.9 '8.9 '8.9 48.9 '8.9 '..9 48.9 .8.9 '8.9 .8.9 '8.9GE 9000) .8.5 49.0 '9.0 '9.0 '9.0 '9.0 '9.0 '9.0 '9.0 '.9.0 '9.0 '9.0 '9.0 49.0 '9.0 '.9.0GE 8U01 '.9.7 50.3 50.5 50.5 50.5 50.5 50.5 60.5 50.5 50.5 S.S 50.5 50.5 S.5 50.5 50.5GE 70001 52.3 53.3 53.5 53.5 53.5 53.5 53.8 51.8 53.8 51.8 53.B 53.8 53.8 53.8 53.8 53.8GE 600| 53.9 55.3 55.6 55.7 SS.9 S5.9 56.1 S6.2 56.2 56.2 56.7 56.2 56.2 56.2 S6.2 56.2

GE 5000) 56.8 58.' 58.8 58.9 59.2 59.2 59.6 59.7 59.7 59.8 59.8 59.8 59.8 59.8 59.8 59.86E '.500) 61.5 63.8 64.2 64.1 65.5 65.6 65.9 66.0 66.0 66.1 66.1 66.1 66.1 66.1 66.1 66.1GE 'DOCI 65.5 68.2 68.8 69.5 70.6 70.8 71.3 71.' 71.5 71.7 71.7 71.7 71.7 71.7 71.7 717GE 35001 68.0 71.' 72.' 73.0 74.7 74.8 75.5 75.6 75.7 75.9 75.9 75.9 75.9 75.9 75.9 75.9GE 30001 72.8 77.2 78.4 79.0 81.5 81.9 82.7 83.1 83.2 83.5 83.5 83.5 83.5 83.5 83.5 83.5

GE 25001 73.9 78.6 81.0 81.7 84.3 85.3 86.1 86.9 87.0 87.' 87. 87.4 87.' 87.4 87.4 87.'GE 20001 7..3 79.' 81.8 82.7 85.7 86.8 88.1 89.1 89.2 89.7 89.7 89.7 89.8 89.8 89.8 89.8GE 180C) 74.3 79.5 82.0 e2.9 85.9 87.0 88.' 89.5 89.6 90.0 90.0 90.0 90.2 90.1 90.1 9u.IGE 1500) 7'.' 79.8 82.5 83.5 86.9 88.1 89.7 91.0 91.1 91.7 91.7 92.3 92.' 92.' 92.' 92.5GE 12F0 7'. 79.8 82.5 F3.5 86.9 88.1 89.7 91.2 91.' 92.0 92.2 92.7 93.0 93. 0 93.0 93.1

GE 1000) 79.7 8C.1 82.8 83.9 87.5 88.7 90.6 92.2 92.7 93, 94.1 94.9 95.6 95.6 95.6 95.7GE 90C1 74.7 80.1 82.8 83.9 87.? 88.9 90.9 92.' 92.9 93.7 94.3 95.2 95.8 95.8 95.8 95.9GE SUC) 79.7 8C.1 82.8 83.9 87.7 88.9 90.9 92.5 93. 9'..5 95.3 96.1 96.8 96.8 96.8 96.9GE 7r01 74.7 80.1 82.8 83.9 87.7 88.9 90.9 92.5 93.,1 9.5 99.3 96.1 96.8 96.8 96.8 96.9GE 6001 74.7 8.1 82.8 83.9 87.7 88.9 90.9 92.5 93.9 95.3 96.0 96.9 97.6 98.1 98.1 98.2

GE SOC) 7's.? 80.1 82.8 83.9 87.7 88.9 90.9 92.7 94.1 95.6 96.3 97.2 98.3 98.7 98.9 99.0GE '00) 74.7 80.1 82.9 83.9 87.7 88.9 90.9 92.7 99.3 95.8 96.7 97.5 98.6 99.0 99.2 99.'GE 300) 74.7 8C.1 82.8 83.9 87.7 88.9 90.9 92.7 9'.3 95.8 96.8 91.7 98.8 99.2 99.5 99.7

GE 2001 7'.7 80.1 82.8 83.9 87.7 88.9 90.9 92.8 94.' O5.9 96.9 97.8 98.9 99.5 99.7 99.9GE 100) 7'.7 8.1 82.b 83.9 87.7 88.9 90.9 92.8 9'. 95.9 96.9 97.8 98.9 99.6 99.8 1(0.0

GE C1 7'.7 80.1 82.8 83.9 87.7 88.9 90.9 92.8 9'.' 95.9 96.9 97.8 98.9 99.6 99.8 100.0

TOTAL NUMBER OF o8SERVATZONS: 931

Ak&

GLLBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF9 NY PERIOD OF RECORD: 78-87MONTH: JAN HOURSILSTI: 2100-?300

............................................................................................................................CE ILING VISIBILITY IN STATUTE MILES

IN I GE E GE GE GE GE GE GE GE GE GE GE GE GE GE GE' ET 10 / 2 1 112 1 |1/4 I 314 Sig 112 5/16 1/4 a

NO CEIL 1 38.7 3S.0 39.0 39.1 39.1 39.1 39.1 39.1 39.1 39.1 39.1 39.1 39.1 39.1 39.1 39.1

GE 200001 All. 1 1. 41.4 1.5 '1-5 01.5 01.5 41.S 01.5 01.5 01.5 '1.5 .1.5 41.5 41.5 01.5GE 160001 01.3 41.b 01.6 91.7 11.7 9?1.7 -1.7 41.1 01.7 01.7 01.7 01.7 01.7 '1.7 41.7 a.GE 160UC0 01.3 '41.6 91.6 01.7 01.7 91.1 01.7 01.7 01.1 41.7 01.7 01.7 91.1 41.7 41.7 41.7GE 1%0001 42.0 42.0 92.0 %2.5 012.5 '42.5 42.5 02.5 02.5 02.5 02.5 02.5 02.5 02.5 42.5 42.5GE 120001 03.3 03.9 93.9 00.0 0.0 9.0 00.0 44.0 00.0 04.0 00.0 00.0 0044.0 '40.0 00.0 0 .0

GE 100001 '6.5 '7.0 07.0 07.1 07.1 7.1 07.1 01.1 07.1 07.1 47.1 07.1 47.l .1 '41.1 '47.1GE 90001 06.9 07.5 07.5 07.6 '?7.6 07.6 47.6 47.6 076 07.6 07.6 07.6 03.6 '7.6 07.6 47.6GE 80001 09.2 SC.1 50.1 50.Z 50.2 50.z 50.2 50.2 50.2 50.2 5n.2 50- 2 . O.2 50.2 50.2 50.2GE 70001 51.0 51.9 51.9 52.2 52.2 52.' 52.3 52.4 52.4 52.4 $.0 52.' 52.0 52.0 52.q EZ.4GE 60001 53.2 5q.0 59.0 54.6 54.6 50.6 50.7 50.8 50.8 S.8 50.8 50.8 50.8 54.B 50.8 54.8

GE 50001 57. 0 58.9 59.1 59.6 59.6 59.6 59.7 59.8 59.8 %9.8 59.8 59.8 59.8 59.8 59.8 59.8(7 6E 45001 61.6 60.3 65.2 65.8 66.0 66.1 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3

GE 400C[ 66.1 65.6 71.0 72.3 72.7 72.9 73.0 73.1 73.i 73.1 71.1 73.1 73.1 73.1 73.1 ?3.1GE 35001 69.0 73.3 75.0 76.5 77.2 77.5 77.7 77.8 1.8 77.8 17.8 71.8 77.8 71.8 77.8 77.8

C GE 30001 72.3 78.0 80.1 91.3 82.6 82.9 83.1 83.3 83.3 83.3 87.3 83.3 83.3 83.3 83.3 83.7

GE 25001 73.0 79.8 82.5 89.0 85.6 86.2 86.8 87.1 97.1 87.1 87.1 87.1 87.1 P7.1 87.1 07.1GE 20001 70.3 81.0 80.0 85.8 87.S 88.3 89.2 90.0 90.1 90.1 90.1 9C.1 90.1 90.1 90.1 90.1GE 18001 74.3 81.0 89.0 85.8 87.6 88.0 89.0 90.3 9D. 90.'. 90.0 90.0 90.0 90.0 90.0 9G.4GE I5OCI 70.3 81.0 89.0 85.8 80.2 88.9 90.8 91.9 92.2 92.9 92.9 93.1 93.1 93.1 93.1 93.1

r GE 12001 70.3 81.0 80.0 85.8 88.2 86.9 90.9 92.0 92. 93.1 93.1 93.3 93.3 93.3 93.3 93.3

GE 10001 70.6 41.9 89.9 86.2 88.8 89.7 91.6 92.9 93.5 90.8 90.9 95.2 95.3 05.3 9.3 95.3GE 9001 70.6 81.5 89.5 :6.5 89.1 90.1 92.2 93.7 90.3 95.6 95.7 95.9 96.0 96.0 96.0 96.2GE 8001 70.6 81.6 89.6 86.6 89.0 90.3 92.4 93.9 90.5 95.9 96.3 96.6 96.7 96.7 96.7 96.9GE 700 70.6 81.6 89.6 86.6 89.1 90.3 92.0 93.9 90.5 95.9 96.6 96.8 96.9 96.9 96.9 97.2GE 6001 70.6 81.6 89.6 86.6 89.0 90.3 92.5 90.0 90.6 96.5 97.2 97.0 97.5 97.6 97.6 98.0

GE SoCI 70.6 81.6 60.6 86.6 89.0 90.3 92.5 90.0 90.6 96.6 97.7 98.0 98.1 98.2 98.7 99.0GE 0Ua0 79.6 81.6 80.6 86.6 89.4 90.3 92.5 94.0 90.6 96.6 97.7 98.0 98.1 98.2 98.7 99.0GE 30C| 70.6 81.6 89.6 86.6 89.0 90.3 92.5 90.0 90.6 96.6 97.7 98.1 98.0 98.5 99.0 99.0GE 201l 79.6 81.6 89.6 86.6 89.4 90.3 92.5 99.0 90.6 96-6 97.8 98.2 98.5 98.8 99.5 99.8GE 1001 70.6 81.6 89.6 86.6 69.1 90.3 92.5 90.0 V0.6 96.6 97.8 98.2 98.S 98.9 99.6 015.0

GE Cl 79.6 81.6 89.6 86.6 89.4 90.3 92.5 99.0 94.6 96.6 97.8 98.2 98.5 98.9 99.6 100.0

TOIAL NUMBER Of OBSERVATIONS: 930

-.4i

GL BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY


Ak WEATHER SERVICf'MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PERIOD Or RECORD: 78-87

MONTH: JAN HOURSILSTI: ALL

CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I in 5 If 3 2 112 2 1 112 1 18 1 3/N 5/8 112 S/16 1/4 0

NO CEIL 3 37.8 37.9 38.1 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2

GE 200001 D.2 4C.8 40.9 81.0 N1.0 81.1 .1.1 81.1 I.- )-1.1 81.1 NI.1 81.1 N1.1 41.1 1l.1

GE 380003 NO.5 8 1.1 1.3 81.3 81.8 81.8 41.8 81.8 81.8 81. 81.8 4 81.8 4 81.4 41.4 41.8 1.8GE 1600C 80.6 1.1 1l.3 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 4 . 4 1.8GE 140001 81.2 V1.8 ;1.9 82.0 Z.1 82.1 82.1 42.1 82.1 82.1 82.1 82.1 82.1 82.1 82.1 82.1GE 120001 82.3 83.0 83.2 83.3 43.3 83.8 43.4 83.8 83.8 83.8 83.8 83.8 43.4 83.4 41.8 83.8

GE 1000C1 85.5 86.2 86.5 86.7 86.8 46.8 86.8 86.9 86.9 86.9 86.9 46.9 86.9 8b.9 86.9 86.9GE 90001 85.7 86.5 86.9 87.0 87.1 87.1 87.1 87.2 87.2 87.2 47.2 87.2 87.2 17.2 87.2 87.2GE a00C1 88.1 89.1 89.5 89.7 89.8 89.8 89.8 89.9 N9.9 89.9 89.9 89.9 89.9 89.9 89.9 89.9

GE 7100 50.5 51.9 52.3 52.5 52.7 52.8 52.8 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52-9

GE 60001 52.5 58.1 58.6 58.9 55.2 55.3 5-S. 55.5 55.5 55.5 55.5 55.5 55.5 55.5 55.5 55.5

GE 5OOi 56.2 58.8 59.1 59.5 60.0 60.1 60.3 60.8 60.8 60.8 6D.5 60.5 60.5 60.5 b.5 60.5GE 9500 610.3 63.2 b.3 68.9 65.6 65.8 66.0 66.1 66.1 66.2 66.2 66.2 66.2 66.2 66.2 66.2GE 4O0CI 68.5 68-1 69.7 70.8 71.8 71.6 71.9 72.2 72.2 72.3 72.3 72.3 72.8 12.8 72.8 72.8

GE 35001 67.3 71.6 ?3.5 78.8 75.6 75.9 76.8 76.6 76.6 76.7 76.7 76.7 76.8 76.8 76.8 76.8

GE 39001 71.8 76.7 79.1 80.2 82.0 82.N 03.1 83.5 83.5 A3.7 83.8 83.8 83.9 A3.9 8T.9 83.9

GE 25001 72.7 78.8 81.2 82.3 88.8 85.2 86.1 86.7 86.8 87.0 87.1 87.1 87.1 87.2 87.2 87.2

GE ZOOc| 73.5 79.5 82.5 83.8 86.0 87.0 88.3 89.2 89.3 89.1 89.8 89.8 89.9 89.9 89.9 89.9GE 180C3 73.6 79.6 82.6 83.9 86.2 81.2 89.6 89.6 89.7 90.1 90.2 9G.3 90.8 90.8 90.8 90 ,GE 15CI 73.7 79.9 83.0 88.3 86.8 81.9 89.8 91.1 91.8 92.1 9?.3 92.5 92.6 92.6 92.6 92.7

GE 12001 73.9 8.2 83.3 88.6 87.2 88.3 90.3 91.6 92.0 92.7 93.0 93.2 93.8 93.8 93.5 93.5

GE 10Ul 78.0 81.8 83.6 88.9 87.7 88.9 91.0 92.6 93.) 98.1 98.6 95.0 95.3 95.5 9S.6 95.6

GE u c1 7'.0 8c.8 83.6 85.0 87.8 89.0 91.2 92.7 93.3 98.3 9N.9 95.3 95.7 95.8 96.0 96.0GE 8001 78.0 RG.5 83.6 85.0 87.8 89.1 91.3 92.9 93.5 98.7 95.8 95.8 96.3 96.8 96.6 96.6

GE 7001 78.0 30.5 83.6 85.0 87.9 89.1 91.3 93.0 93,6 98.8 95.7 96.2 96.7 96.9 91.0 97.1

GE 6003 74.0 90.5 83.6 B5.Q 87.9 89.2 91.8 93.0 93.7 95.1 96.f 96.6 97.1 97. 97.5 97.6

GE 5001 18.0 8C.5 83.7 85.1 88.0 89.2 91.5 93.3 98.0 95.8 96.5 97.2 98.0 98.2 99.6 98.7GE OC 78.0 8C.5 83.7 85.1 88.0 89.3 91.6 93.8 98.2 95.7 96.9 97.5 98.8 98.7 99.0 99.1GE 30CI 78.0 80.5 03.7 85.1 88.0 89.3 91.6 93.8 98.2 95.7 97.0 97.7 98.6 99.0 99.q 99.5GE 2001 78.0 8C.5 83.7 85.1 88.0 89.3 91.6 93.5 98.3 95.8 91.2 9?.9 98.8 99.2 99.7 99.9

GE l00c 78.0 8C.5 83.7 85.1 88.0 89.3 91.6 93.5 98.3 05.8 97.2 97.9 98.8 99.3 99.7 100.0

GE 01 78.0 8C.5 83.7 85.1 88.0 89.3 91.6 93.5 94.3 95.6 97.2 97.9 98.8 99.3 99.7 12O.0


*

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY oBSERVATIONSAlf, WEATHER SERVICE/MAC

STATION NUMBER: 7262Z5 STATION NAKE: PLATTSBURGH AF8 NY PERIOD OF RECORD: 78-87

MONTH: FEB HOURSELSTI: 0000-0200


IN I GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

2 FEET I Io 6 5 4 3 2 I2 2 1 112 1 1/4 1 T/' 5/8 112 5/16 1/4 0

NO CEIL 1 '48.3 48.9 49.2 149.2 49.4 49.4 49.4 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6

GE 200001 50.2 SC.8 51.1 51.1 51.3 51.3 51.3 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5

C' GE 180001 50.2 5C.8 51.1 51.1 51.3 51.3 51.3 51.5 51.S 51.5 51.5 51.5 51.5 51.S 51.5 51.5GE 160001 50.4 50.9 51.2 51.2 51.11 51.4 S1.4 51.7 51.1 S1.7 51.7 51.7 51.7 51.7 51.7 51.7GE 1@0001 51.1 51.7 51.9 51.9 52.1 52.1 52.1 52.4 52.4 52.4 52.4 52.4 52.4 52.4 52.4 52.4GE 1200C| 52.5 53.1 53.3 S3.3 53.5 53.5 53.5 53.8 53.8 53.8 5!.P 53.8 53.8 S3.8 53.8 53.8

GE 100001 55.8 56.4 56.6 56.6 56.9 56.9 56.9 57.1 57.1 57.1 57.1 57.1 57.1 57.1 57.1 57.1

GE 900CC 56.4 57.O 57.2 57.2 S?.4 5754 57.4 57.7 57.7 57.7 57.7 51 S7.7 57 57.7 57.?GE 80001 58.7 59.3 59.7 S9.7 $9.9 59.9 59.9 b0.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2GE 7f00 60.5 61.1 61.7 61.7 61.9 61.9 61.9 62.2 62.2 62.2 62.2 62.2 62.3 62.3 62.3 62.3

C GE 630C1 61.3 61.9 62.5 62.8 63.1 63.1 63.1 63.4 b.4 63.4 b3.4 b3.4 63.5 63.5 63.5 63.5

GE 500O1 66.? !7.1 67.7 68.0 68.7 68.7 68.9 69.1 69.1 69.1 69.1 69.1 69.3 69.3 69.3 69.3SGE 4S0CI 70.9 12.7 77.5 73.9 14.6 74.7 74.9 75.2 75.2 75.2 75.2 75.2 75.3 75.3 75.3 75.3

GE '400C 73.0 75.Z T6.2 76.8 77.9 78.0 78.3 78.5 78.5 78.5 74.5 78.5 78.6 78.6 70.6 7.6GE 35011 75.5 77.9 79.0 79.6 80.9 81.0 81.2 81.4 81.4 '1.4 81.4 81.4 81.6 81.6 81.6 81.6GE 3001: 78.0 81.8 83.7 84.3 85.9 86.3 86.5 86.8 86.8 86.8 86.8 86.8 86.9 96.9 66.9 86.9

GE 250CI 79.3 83.6 85.7 86.3 88.1 88.40 8 9 89.0 49.0 89.0 89.0 89.1 9.1 89.1 89.)GE 2006 80.0 84.8 87.6 88.3 90.2 90.S 91.) 91.5 91.6 91.6 91.6 91.6 91,7 91.7 91.7 91.1GE 18001 8n.9 84.9 87.7 88.4 90.3 90.9 91.7 92.1 92.2 92.3 92.4 92.4 92.6 92.6 92.6 92.6GE 15001 80.3 85.2 88.1 88.8 91.0 91.6 92.6 93.3 93.5 93.9 9%.0 94.0 94.1 94.1 94.1 94.1GE IZOCI 80.3 85.2 88.1 88.8 91.0 91.6 92.6 93.3 93.6 94.2 94.3 94.3 94.4 94.4 94.6 94.6

GE 1001 80.3 85.2 88.1 88.8 91.1 91.7 92.8 93.6 94.1 95.5 95.7 95.7 95.9 95.9 96.0 96.0GE 9001 80.3 85.2 88.1 88.8 91.3 91.8 92.9 93.9 94.3 95.7 9b.1 96.1 96.2 96.2 96.5 9bS

GE 8OCI 80.4 85.3 88.2 88.9 91.7 92.3 93.6 94.6 95.0 96.8 97.3 97.3 97.5 97.5 97.8 97.8GE 7011 80.4 85.3 88.z 88.9 91.7 92.3 93.7 94.T 95.2 96.9 97.4 97.4 97.6 97.6 97.9 97.9GE 6001 80.4 85.3 88.2 88.9 91.7 92.3 93.7 94.7 95.2 97.2 97.6 97.6 97.9 97.9 98.1 98.1

GE sCI 80.4 85.3 88.2 88.9 91.8 92.4 94.1 95.0 95.6 98.0 98.6 98.6 98.9 98.9 9Q.2 99.2GE 4011 80.4 85.3 88.2 88.9 91.8 92.4 94.2 95.2 95.7 98.1 98.7 98.7 99.1 99.1 99.4 99.4GE 30CJ 80.4 85.3 88.2 88.9 91.8 92.4 94.3 95.3 95.9 98.2 98.8 98.8 99.2 99.2 99.5 99.5GE 200| 80.5 85.5 88.3 89.0 92.0 92.6 94.4 95.4 96.0 08.3 98.9 98.9 99.3 99.3 99.6 99.6

GE 1001 80.5 85.5 88.3 89.0 92.D 92.6 94.4 95.4 96.1 98.6 99q2 99.3 99.6 99.6 100.0 100.0

GE C| 80.5 85.5 88.3 89.0 92.0 92.6 94.4 95.4 96.1 98.6 99.2 99.3 99.6 99.6 100.0 100.0.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............. ' e '. .. ° ° ......... ... .. .. .. ..... ....

IOTAL NUMBER OF O8SERVAIIOS: 846

WI.

GLCBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

All WEATHER SERVICL/MAC

STATION NUMBER: 726225 STATIOh NAME: PLATTSBURGH AFB NY PERIOO OF RECORD: 78-87MONTH: FEB HOURS(LSTI: 0Q-0500

CEILING V5XLT IN STAuTE MILEIN I GE GE GE GE GE GE GL GE GE GE GE GE GE GE GE GE

FLET I 10 6 5 N 3 2 112 2 1 112 1 111 1 3/4 5/8 112 5/16 1/4 0

NO CEIL I 44.C 44.6 44.9 45.0 45." N5.4 45.4 45.4 5.4 45.4 45.4 4S.4 %5*N 45.4 45.4 45.4

GE 2000CJ 46.7 47.3 47.6 47.8 48.1 46.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1GE 180001 46.8 41.4 47.8 47.9 48.2 48.2 48.2 48.2 48.2 48.2 4A.2 48.2 48.2 48.2 48.2 48.2GE 160001 47.0 417.6 48.0 48.1 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5GE 140001 48.0 48.6 48.9 9.1 409 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49:4 49.4 49.

) GE 120001 50.2 5o.8 51.2 61.3 51.T 61.7 51.7 51 1.7 51.7 51.7 51.7 61.7 61.7 51.7 5i.7

GE 100001 52.5 53.3 53.8 53.9 5.3 54.3 54.3 54.3 54.3 54.3 54.3 S4.3 54.3 54.3 54.3 54.3

GE 90001 53.2 54.0 5.5 54.6 55.0 55.0 55.0 55.0 S5.O S5.0 55.0 55.0 55.0 55.0 56.0 55.0GE 80001 54.6 55.4 5S.9 56.0 56.4 5b.N 56.4 5b.4 66.4 56.4 56.4 56.4 56.4 56.4 56.4 56.4GE 7009C S6.3 S7.2 57.9 58.0 56.4 58.4 58.4 58.4 58.4 58.4 58.4 S8.4 68.4 58.4 58.4 58.4GE 60001 58.2 54.2 60.3 60.4 61.0 bl.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0

GE 50009 62.2 63.4 64.8 64.9 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6

GE 45001 65.7 67.7 69.1 69.5 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3GE 400C 69.0 72.3 74.0 74.1 74.9 75.2 75.3 75.3 75.3 75.3 7.3 75.3 75.3 75.3 75.3 75.3GE 350CI 71.6 75.3 77.0 77.2 78.1 78.4 76.5 78.5 78.5 78.6 78.6 78.5 78.5 78.5 79.5 78.5

GE 30001 75.1 79.7 82.2 82.q 83.7 83.9 84.0 84.0 84.0 84.0 84.0 64.0 84.0 84.0 84.0 84.0

GE 26001 76.5 81.8 85.1 85.3 86.8 87.0 87.4 87.4 87.4 87.4 87.4 81.4 87.4 87.4 87.4 87.4

GE 20001 77.7 83.2 87.0 87.4 89.4 89.7 90.3 93.4 90.4 90.4 90.4 90.4 90.4 90.4i 90.4 90.4GE SUd 77.8 83.3 87.1 87-5 89.5 89.8 90.4 90.5 9D.5 90.7 90.7 90.7 90.7 90.7 9T.7

9j.7

GE 15-101 78.3 83.9 87.1 88.1 9D.4 90.9 91.6 91.7 91.7 92.0 92.1 92.1 92.1 92.1 92.1 92.1

GE 12001 78.6 84.3 88.1 88.4 90.9 91.4 92.1 92.6 92.6 92.8 92.9 92.9 92.9 92.9 92.9 92.9

GE 10001 78.6 84.3 88.1 88.4 91.3 91.7 92.6 93.0 93.1 93.6 94.0 94.0 94.0 94.0 94.0 94.0GE 9009 78.6 84.3 88.1 88.4 91.4 91.8 92.7 93.1 93.3 93.9 94.3 94.3 94.3 94.3 94.3 94.3GE 8001 78.6 84.3 88.3 88.7 92.1 92.6 93.5 94.0 94.1 9e.7 95.7 95.7 95.9 95.9 9S.9 95.9

GE 70C1 78.6 84.3 88.3 88.7 92.1 92.6 93.5 94.0 94.1 94.7 95.7 95.7 95.9 95.9 95.9 95.9GE 6001 78.6 84.3 88.3 88-7 92.1 92.6 93.7 94.2 94.3 94.9 96.0 96.0 96.1 96.1 96.1 96.1

GE 50C9 7P.6 94.3 88.3 88.7 92.3 92.8 94.0 9q.6 94.8 96.7 97.0 97.0 97.2 97.2 97.2 97.2

GE 40C9 78.6 84.3 88.3 88.7 92.3 92.8 94.3 94.9 95.2 96.2 97.6 97.6 97.8 97.8 98.1 98.8GE 30c9 78.6 84.3 88.3 88.7 92.3 92.8 94.3 94.9 95.3 96.5 98.3 98.0 98.2 98.2 98.6 98.6

GE 20C9 78.6 84.4 88.4 88.8 92.4 92.9 94.4 95.5 95.9 97.2 98.8 98.8 99.1 99.2 99.5 99.5

GE 1oci 78.6 84.4 88.4 88.9 92.6 93.0 94.8 95.9 96.2 97.6 99.2 99.2 99.4 99.6 100.0 100.0

GE o0 78.6 84.4 88.4 88.9 92.6 93.0 94.8 95.9 96.2 97.5 99.2 99.2 99.4 99.5 100.0 100.0


GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

£1k WEATHER SERVICE/MAC

STATION NUMPER: 726225 STATICN NAME: PLAITSBUpGH AFB Ny PERIOD OF RECORD: 78-87MONTH: FEB HOURSlLSTI: 0600-0800

CE ILING VISIBILITY IN S$IuIUTE M1LES

IN I GE 6E GE GE GE GE GE GE GE GE GE GE GE GE GE 6EFEET 10 6 5 4 3 2 112 2 1112 11/4 1 314 5/8 li? Silb 1/4 0

NO CEIL I 40.0 4E.4 4O.4 40.4 4.5 40.5 40.8 4J.8 40.8 40.8 40.8 40.8 40.8 4C.8 40.8 4C.8

GE 200001 44.9 45.4 45.4 45.4 45.5 45.5 45.7 45.1 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7GE 180001 44.9 45.4 45.4 45.4 45.5 45.5 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7GE IbOUCI 44.9 45.4 4S.4 45.4 45.5 45.5 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7GE 1 0001 45.6 46.3 46.5 46.5 46.8 46.6 46.8 46.8 46.8 46.8 46.8 46.8 46.8 46.8 46.8 46.8

C GE 120001 47.2 48. 48.1 48.1 48.2 18.2 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5

GE 100001 51.4 52.6 52.7 52.7 52.8 52.8 53.1 53.1 53.1 53.1 53.I 53.1 53.1 51.1 53.1 53.1

GC 90001 51.8 53.0 53.1 53.1 53.2 53.2 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53.4rr snOCt 5T 9 15.? 55.3 55.4 55.6 55.6 55.8 55.8 S5.8 55.8 55.8 55.8 55.8 55.8 55.8 55.8

GE 70001 56.4 57.7 57.8 57.9 58.3 58.4 58.9 59.0 59.0 59.0 59.0 59.0 59 . Z ;.0 59.0 S^.0

C' GE 6001 57.7 59.1 59.6 59.8 60.4 60.5 61.0 61.2 61.2 61.2 b.2 61.2 b.? 61.2 61.2 61.2

GE 500CI 62.4 63.8 64.3 64.1 65.2 65.4 65.8 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66-1 66.1" GE 45009 66.9 68.6 69.4 69.7 70.6 70.7 71.2 71.6 11.6 71.6 71.7 71.7 71.7 71.7 71.7 71.7

GE 400CI 70.2 72.9 73.8 74.3 75.3 75.4 75.9 76.4 76.4 76.4 76.5 76.5 76.5 76.5 76.5 76.5GE 350C| 72.0 74.8 75.? 76.2 77.3 77.4 77.9 78.4 78.4 78.4 78.5 78.5 78.5 78.5 78.5 78.5

GE 30001 75.4 79.3 80.4 81.2 82.6 82.7 83.2 83.7 83.7 83.8 81.9 83.9 83.9 83.9 83.9 83.9

GE 25001 77.0 81.b 83.2 e4.4 86.2 86.3 87.0 87.S 87.5 87.7 87.9 87.9 87.9 81.9 87.9 83.97 C GE 20001 77.5 82.3 84.5 85.8 87.8 88.1 89.4 90.3 90.4 00,7 9c.9 90.9 91.0 91.1 91.1 91.1

GE 18001 77.5 82.3 84.5 85.8 87.9 88.2 89.7 90.7 90.8 91.1 91.4 91.4 91.5 91.6 91.6 91.6GE 15001 7.8 82.5 84.8 86.1 88.3 88.5 90.3 9:.3 92.4 92.6 92.6 92.6

* ( GE 12001 77.8 82.5 84.8 86.1 88.3 88.7 90.7 98.7 91.8 92.3 92.8 92.8 99 03. 93.1 9'.

GE 10009 77.9 82.6 84.9 86.2 88.8 89.1 91.5 92.7 92.9 93.7 94.3 94.3 94.6 94.7 95.0 95.0

GE 9UC| 78.0 82.7 85.0 86.3 88.9 89.5 91.8 93.3 93.5 94.3 94.9 94.9 95.2 95.3 95.6 95.6

GE 80cI 78.0 82.7 85.0 86.3 89.0 89.6 92.0 93.4 93.6 94.4 9S.0 95.0 95.3 95.4 95.7 95.7GE 7001 78.1 82.9 85.1 86.4 89.1 89.7 92.1 93.5 93.7 94.6 95.2 95.2 95.5 05.6 96.0 96.0GE 600I 78.1 82.9 85.1 86.4 89.1 89.7 92.4 93.9 94.2 05.0 95.6 95.6 96.0 96.1 96.5 96.5

GE SUI 78.3 83.1 85.3 86.6 89.4 9..0 92.7 94.2 94.7 Q5.5 96.2 96.2 96.6 96.7 97.2 97.4

GE 40c) 78.3 83.1 85.3 86.6 89.4 90.0 92.8 94.6 95.0 96.2 96.9 97.0 97.4 91.6 98.1 98.3GE 3001 78.3 83.1 85.3 86.6 89.5 90.1 92.9 94.7 95.2 96.6 97.4 97.S 98.2 98.5 9?.2 99.4

bE 2UCI 78.3 83.1 85.3 86.6 89.5 90.1 92.9 94.8 95.3 96.7 97.5 97.6 98.3 98.7 99.4 99.9

GE loci 78.3 q3.1 85.3 86.6 89.5 90.1 93.0 94.9 95.4 96.8 97.6 97.8 98.5 98.8 99.5 100.0

GE El 78.3 83.1 8.3 86.6 89.5 90.1 93.0 94.9 95.4 96.8 97.6 97.8 98.5 98.8 99.5 100.0


6.

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUROENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIk WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 Ny PERIOD OF RECORD: 78-87

MONTH: FED HOUR tLSTI: 0 lo-11o0........................................................ .. ... .. .. ... .. ... .. .. ... .. .. ... .. ... .. .. ... .. ..CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFLET I 10 6 5 N 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CEIL I N3.1 N3.5 43.5 43.6 43.6 43.6 43.7 43.7 43.7 43.7 43.7 43.7 43.7 N3.7 43.7 43.7

GE 200001 48.7 4S.4 49.4 49.5 49.5 49.5 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6GE 180001 50.0 50.7 50.7 50.8 50.8 50.8 50.9 5J.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9GE 160001 50.2 S .

9 50.9 51.1 51.1 51.1 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2

GE 1400CI 50.6 51.3 51.3 51.4 51.4 51.4 51.5 51.5 51.5 S1.5 51.5 51.5 51.5 51.5 51.5 S1.5

GE 120001 52.6 53.3 53.4 53.5 53.8 53.8 53.9 53.9 53.9 53.9 5!.9 53.9 53.9 53.9 53.9 53.9

GE iO001 56.4 57.6 57.7 57.8 58.0 58.0 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3 54.3 58.3GE 900CI S7.0 58.2 58.3 58.4 58.6 58.6 58.9 58.9 58.9 58.9 58.9 58.9 58.9 58.9 58.9 56.9

GE 80001 60.6 62.1 62.2 62.8 63.0 63.0 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 61.2 63.2

GE 73001 62.8 64.4 64.8 65.4 65.8 66.2 66.7 66.7 66.7 66.8 66.8 66.8 66.8 66.8 66.8 66.8GE 60001 63.8 65.8 66.2 66.9 67.5 67.8 68.4 6d.b 68.6 68.7 68.7 68.7 64.7 68.7 68.7 68.7

(iE 50001 68.1 70.4 70.8 71.7 72.3 72.8 73.5 73.8 73.8 73.9 73.9 73.9 73.9 73.9 73.9 73.9

GE 45OCI 71.3 73.8 74.5 75.5 76.1 76.6 77.4 77.7 77.7 77.8 77.8 77.8 77.9 77.9 77.9 77.9

GE 400C0 72.5 75.4 76.2 77.3 78.1 78.6 79,6 79.9 79.9 80.1 8n.1 80.1 80.3 80.3 80.3 80.3

GE 35001 74.6 78.0 79.1 80.3 81.1 81.6 82.6 83.1 83.1 83.3 83.3 83.3 83.5 83.5 83.5 e3.5GE 30001 76.8 81.2 82.4 83.6 84.9 85.3 86.4 86.9 86.9 87.1 87.1 87.1 87.2 87.2 87.2 87.2

GE 25001 77.7 82.6 84.4 85.6 87.2 87.9 89.1 89.7 89.7 00.0 90.0 90.0 90.1 9C.1 91.1 90.1

GE 27001 78.0 83.3 85.5 86.6 88.7 89.5 91.1 92.2 92.3 92.6 92.6 92.8 93.0 93.0 93.0 93.0

GE 18001 78.0 83.3 85.5 86.6 88.8 9.b 91.5 92.6 92.7 92.9 97.9 93.1 93.4 93.4 93.4 93.4

GE 15001 78.0 83.5 85.6 86.8 88.9 89.7 91.8 93.0 93.1 93.4 93.4 93.6 93.9 93.9 93.9 93.9

GE 120C 78.0 83.5 85.6 86.8 88.9 89.7 92.0 93.3 93.4 93.6 93.6 93.9 94.1 94.1 94.1 94.1

GE 10001 78.0 83.5 85.6 86.8 88.9 89.7 92.2 94.0 94.1 94.8 95.3 95.5 96.7 96.0 96.0 96.0

GE 9uoI 78.0 83.5 85.6 86.8 89.0 89.8 92.3 94.1 94.2 94.9 95.q 95.6 96.1 96.1 96.1 96.1GE 8001 78.0 83.5 85.6 86.8 89.1 90.0 92.4 94.2 94.3 95.0 95.5 95.7 96.3 96.3 96.3 96.3GE 70C 78.0 83.5 85.6 86.8 89.1 90.0 92.4 94.2 94.3 95.2 95.6 95.9 96:6 96.6 96.6 96.6

GE 600, 78.0 83.5 85.6 86.8 89.1 90.0 92.4 94.2 94.3 95.2 95.7 96.0 96.7 96.8 96.8 96.8

GE SOOt 78.0 83.5 85.6 86.8 89.1 90.0 92.4 94.2 94.3 95.4 96.1 96.5 97.3 97.4 98.0 98.1

GE 4001 78.0 83.5 85.6 86.8 89.1 90.0 92.6 94.4 94.6 956 96.6 96.9 97.9 98.2 94.8 99.1GE 30CI 78.0 83.5 85.6 86.8 89.1 90.1 92.7 94.6 94.7 95.7 96.8 97.2 98.5 98.8 99.5 99.9GE 2001 18.0 83.5 85.6 86.8 89.1 90.1 92.7 94.6 94.7 95.9 96.9 97.3 98.6 98,9 99.6 100.0

GE 1001 78.0 83.5 85.6 86.8 89.1 90.1 92.7 94.6 94.7 95.9 96.9 97.3 98.6 98.9 99.6 1C.0

GE 01 78.r 83.5 85.6 86.8 89.1 90.1 92.7 94.6 94.7 95.9 96.0 97.3 98.b 98.9 99.6 100.0

TOIAL NUMBER OF ORSERVATIONS: P46

0&MOIL

GLIBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF O000RENCC OF CEILING VFRSUS VISIBILIIYUSAFETAC FOM HOURLY OBSERVATIONSAIR WEATHER SERVICC/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR Ny PERIOD OF RECORD: 78-87

MONTH: FEB HOURSILS11: 1200-140D

CEILING VISIBILITY IN STAIUIE PILES

IN I GE CE GE GE GE GE GE GE GE GE GE GE GE GE SE GEFEET I 10 6 5 4 3 2 112 2 1 1/2 I 1/4 1 31 518 1/2 S/16 1/4 0

NO CElL 1 42.8 41.3 43.4 43.6 43.6 43,6 43.7 43.7 43.7 43.7 43.7 43.7 43.? 43.7 43.7 43.7

GE 00001 49.1 49.5 49.6 49.9 49.9 49.9 50.0 50.0 50.o 50.0 50.0 50.0 50.0 50.0 50.0 50.0

GE 1800C 50.0 50.5 50.6 50.8 50.8 50.8 50.9 50.9 50.9 50.9 51.9 50.9 50.9 50.9 50.9 50.9GE 1600C 1 50.1 5c.6 50.7 50.9 50.9 50.9 51.1 51.1 51.1 51.1 51.1 51 .1 51. 51.1 5j.j 5.1

GE 140001 50.4 51.8 50.9 51.2 51.2 51.2 51.3 51.3 51.3 51.3 51.3 51.3 52.3 51.3 51.3 51.3

GE I2COCI 53.1 53.5 53.7 54.0 54.0 54.0 54.1 5q.1 54.1 54.1 54.1 54.1 54.2 54.1 54.1 54.1

GE 100l 56.9 57.8 58.0 58.4 58.6 58.6 58.7 58.7 $8.7 58.7 58.7 58.7 58.7 58.7 58.7 58.7

GE 990gC 57.2 58.2 58.4 58.7 59.0 59.0 59.1 59.1 59.1 59.1 59.1 59.1 59.1 5

9.j 59.1 59.1

GE 8TOCI 60.2 61.1 61.3 61.7 61.9 61.9 62.1 62.1 6Z.2 62.1 62.1 62.1 62.1 62.1 62.1 62.1GE 7001C 62.4 63.6 64.4 64.9 65.2 65.4 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6

GE 60001 64.5 65.8 b6.7 67.1 67.5 67.6 67.8 67.8 67.8 67.8 67.9 67.8 61.8 b;.o 67.8 67.8

GE 50001 67-1 68.7 69.6 10.1 70.4 70.6 70.8 70.8 70.8 70.8 7n.8 7O.B 70.8 70.8 70.8 70.8

GE 450c1 70.9 72.7 73.8 7%.5 74.9 75.1 75.3 75.3 75.3 75.3 75.1 75.3 75.3 75.3 75.3 75.3GE 400C9 73.8 76.6 78.0 78.7 79.3 79.4 7

9.7 79.7 79.7 79.8 79.8 79.8 79.8 79.8 79.8 79.8

GE 35009 76.6 79.7 81.6 82.4 83.1 81.2 83.5 83.5 83.5 83.6 87.6 83.6 83.6 83.6 81.6 83.6

GE 30001 79.1 82.9 8S.I 86.1 86.8 87.0 87.6 87.7 87.7 87.9 88.1 88.1 88.1 88.1 88.1 88.1

GE 2501 80.3 84.5 87.0 88.2 89.1 89.4 90.0 90.3 90.3 90.7 90.8 90.9 90.9 90.9 9'.9 90.9GE 200C1 82.2 85.5 8?.9 89.1 90.3 90.5 91.1 91.5 91.6 q2.0 92.1 92.2 92.2 92.2 92.2 9Z.2

GE 1800I 81.2 9.6 88.1 89.2 9n.4 90.7 91.3 91.6 91.7 92.1 97.7 92.3 92.3 92.3 92.3 92.3GE iSU0 81.2 85.6 88.1 89.2 90.5 90.8 91.6 92.1 92.6 93.1 93.3 93.4 93.4 93.4 93.4 93.4

GE 120CI 81.2 85.9 88.4 89.6 90.9 91.1 92.0 92.4 93.1 93.7 91.9 94.0 94.0 94.0 94.0 94.0

r IOC1 81.2 86.1 88.7 89.8 91.3 91.5 9?.4 93.4 94.1 94.9 95.3 95.4 95.6 95.6 95.6 95.6

GE QgQ| 81.2 86.1 88.7 89.8 91.3 91.5 92.4 93.4 94.1 94.9 95. 95.4 95.6 95.6 95.6 95.6GE 8001 81.2 86.2 88.8 90.0 91.4 91.6 92.6 93.6 94.6 95.4 95.7 96.0 96.7 96.2 96.2 96.2GE 70C 81.2 86.3 88.9 90.1 91.5 91.7 97.7 93.7 94.7 95.5 95.9 96.1 96.3 96.3 96.3 96.3GE 60C 81.2 86.3 88.9 90.1 91.5 91.7 92.8 94.0 95.2 96.1 96.5 96.8 97.0 97.2 97.2 97. 2

GE 50C 81.2 86.3 88.9 90.1 91.5 91.7 92.8 94.0 95.2 96.1 96.6 96.9 97.4 97.5 97.9 97.9GE 4001 81.7 86.3 89.0 90.3 91.1 92.0 93.0 94.3 95.5 96.5 96.9 97.3 97.8 97.9 98.7 96.3GE 3009 81.2 86.3 89.0 90.3 91.7 92.0 93.0 94.3 95.6 96.8 97.1 97.6 98.5 98-6 98.9 99.3GE 2001 81.2 86.3 89.0 90.3 91.7 92.0 93.0 9-.. 95.6 96.8 97.3 97.8 98.6 98.8 99.6 100.0GE 1oci 81.2 86.3 89.0 9D.3 91.7 92.0 93.0 94.3 95.6 96.8 97.3 97.8 98.6 98.8 99.6 100.0

GE CI 81.2 86.3 89.0 90.3 91.7 92.0 93.0 94.3 95.6 96.8 97.3 97.8 98.6 98.8 99.6 100.0

TOTAL NUMBER OF OBSERVATIONS: 846Io

GLLBAL CLIMATOLOGY BRANCH PEWCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OeSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS Ny PEPIOD OF RECORD: TB-87

MONTH: FEB HOURSILSTI: L500-1700

CE IL ING VISIBILITY IN STATUTF MILESIN I rE GE GE GF GE Gr GL GE GE GE GE Z GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 112 1 14 1 3/4 5,8 112 16 1/4 0...............................................................................................................................................

NO LEIL I 45.2 45.5 45.6 45.7 45.7 45.7 45.7 45.7 45.7 45.9 45.9 45.9 45.9 45.9 45.9 45.9

GE 200001 49.1 45.4 49.5 49.6 49.6 49.6 49.6 49.6 49.6 49.8 49.8 49.8 49.8 49.8 498 49.8GE 180101 50.0 5C.4 50.5 50.6 50.6 50.6 50.6 50.6 50.6 50.7 50.7 50.7 50.7 50.7 5n.? 50.75E 1600C1 50.2 50.6 50.7 50.8 50.8 50.8 50.8 S.8 50.8 50.9 50.9 50.9 50.9 5C.9 50.9 50.9GE 14,001 50.6 50.9 51.1 51.2 51.2 51.2 51.2 51.2 51.2 51.3 51.3 51.3 51.3 51.3 51.3 51.3GE 1200CI 52.6 53.0 53.1 53.5 53.5 53.5 53.5 535 53.S 53.7 53.7 537. 53.7 53.7 53.7 53.7

GE lOOOEI 56.1 57.0 57.1 57.8 57.8 51b 57.8 '7 .6 57.8 57.9 57.9 57., 57.9 57.9 5'.9 57.9GE 9000I 56.6 57.6 57.7 58.4 58.4 58.4 8.4 58.4 58.4 58.5 58.5 S8.S 58.5 58 . 5,5 5 5R.5GE 80| 59.8 6C.9 61.0 61.8 61.8 61.8 61.8 61.8 61.8 61.9 61.9 61.9 61.9 61.9 61.9 61.9GE 70001 63.9 65.7 65.8 66.7 66.7 66.7 66.8 66.8 b6.8 66.9 66.9 66.9 66.9 66.9 66.9 66.9GE 600C 66.Z 68.0 68.1 68.9 68.9 68.9 69.0 69.0 69.0 69.1 69.1 69.1 69.1 69.1 69.1 69.1

GE 5OUCI 70.2 72.0 72.2 73.0 73.0 ?3.0 73.2 73.2 73.2 73.3 73.3 73.3 73.3 73.3 73.3 73.1GE 450C| 73.2 74.9 75.3 76-2 76.2 76.2 76.4 76.4 76.5 76.6 76.6 76.6 76.6 76.6 76.F 7b.6GE NOOCI 76.0 78.1 79.0 80.0 80.3 80.3 80.4 80.5 80.6 80.7 80.7 80.7 80.7 A0.7 81).7 8u.7GE 35001 77.5 8.4 81.2 82.5 12.7 82.7 83.0 83.1 63.2 83.3 A3.3 83.3 83.3 83.3 83.3 83.3GE 30001 80.0 83.3 84.4 85.7 86.8 86.9 87.2 87.6 87.7 87.8 87.8 87.8 87.8 P?.8 87.8 87.8GE 25011 81.1 85.6 86.6 88.1 89.8 90.0 90.1 91.1 91.3 p1.4 91.4 91.4 91.4 91.4 91.9 91.4

GE 20001 81.7 86.3 87.5 88.9 90.7 90.9 91.7 92.4 92.8 92.9 92.9 92.9 92.9 92.9 92.9 92.9GE i8OCI 81.7 86.3 87.5 88.9 90.7 90.9 91.7 92.4 92.8 92.9 92.9 93.0 93.0 93.

0 93.0 93.0GE 15001 81.7 86.3 87.7 89.2 91.0 91.3 92.3 93.4 93.7 94.2 94.4 94.6 94.6 94.6 94.6 94.6GE 12001 81.7 86.5 87.9 89.5 91.4 91.6 92.8 94.0 94.4 94.9 95.2 95.3 95.3 95.3 95.3 95.3

GE IOOCI 81.7 86.5 88.2 89.8 91.7 92.1 93.6 94.8 95.4 96.z 96.5 96.7 96.8 96.8 96.8 96.8GE 90CI 81.7 86.5 88.2 89.8 91.7 92.1 93.6 94.8 95.4 '6.2 96.5 96.7 96.8 96.6 96.8 96.8GE BOCI 81.7 86.5 88.3 90.0 91.8 92.2 93.7 94.9 95.5 96.3 96.9 97.2 97.3 97.3 97.3 97.3GE 7001 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.7 96.7 97.3 97.5 97.6 97.6 97.6 97.bGE 60c1 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.

0 95.7 96.8 97.4 97.6 97.8 97.8 978 97.8

GE 501C 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.9 96.9 97.8 98.1 98.5 98.5 99.6 96.7GE 4001 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.9 06.9 97.8 98.2 98.6 98.6 98.8 98.9GE 3001 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.9 97.0 97.9 98.3 98.8 98.8 99.2 99.4GE 20I 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.9 97.0 98.1 98.6 99.1 99.2 99.5 100.0GE IUCI 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.9 97.0 98.1 98.6 99.1 99.2 99.5 10C.0GE CI 81.7 86.5 88.3 90.0 91.8 92.2 93.7 95.0 95.9 97.0 9R.1 98.6 99.1 09.2 99.5 130.0

...............................................................................................................................................


0M

Nw

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: i8-STMONTH: FEB HOURSILST): 1800-2000

.....................................................o *oo** ...,........... °o ° °. o ..................

CE 1LING VISIBILITY IN sTATUIF MILESIN GE bE GE GE GE GE GE GE GE 6E GE Sr GE GE GE rIL

FEET 1I 6 5 4 3 2 1/2 2 1 112 1 114 1 3/4 5/8 112 S/16 I/ 0

NO COIL I 50.1 51.1 50.1 50.1 50.1 $O.1 50.1 50.1 50.1 50.1 50.1 SE. $0.1 5..1 9.1 SO. 1 50.1

GE 200001 52.7 52.7 52.7 52.7 53.0 53.0 $3.0 $3.0 5 3o $3.0 53.0 53.0 53.0 53.0 53.0 53.0GE 1800 1 52.8 52.8 52.8 5Z.8 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.3 53.1 S3.1 53.1 $3.1GE 160011 52.A 52.8 52.8 52.8 53.1 53.1 53.1 53.1 53.1 $3.1 53.1 53.1 53.1 $3.1 53.1 53.1GE 1400C 5 4.0 54.0 54.J 54.0 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3UE 1200G1 55. 55.7 55.7 55.1 55.9 55o9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9

GE 100001 59.1 59.2 59.2 59.2 59.5 59.5 59.6 59.6 59.6 59.6 59.6 59.6 59.6 59.6 59.6 59.6GE 900ol 59.7 5.8 59.8 59.8 60.0 60.0 60.2 60.2 60.2 60.2 60.2 60.2 60.2 6C.2 60.2 bO.26E 89001 62.9 63.0 63.0 63.0 63.4 63.4 63.5 63.5 63.5 63.5 63.5 63.5 63.5 63.5 63.5 63.5GE 700C 1 64.5 64.9 64.9 64.9 65.4 65.4 65.5 65.5 6$.5 65.5 6r .5 65.5 65.5 65.5 65.5 65.5

GE bOC 1 66.2 66.5 66.5 66.5 67.0 67.0 67.1 67.1 67.1 67.1 67.1 67.1 67.1 67.1 67.1 67.1

G0 50)Z1 69.6 7C.1 70.2 70.3 70.9 70.9 71.3 71.3 71.3 71.3 71.3 71.3 7

1.3

71.3 71.3 71.3GE 45j1 73.0 74.3 74.7 74.8 75.7 75.7 76.0 76.0 16.0 76.1 76.1 76.1 76.1 76.1 7b.1 7t.IGE 40001 75.8 77.5 78.4 78.6 80.1 80.3 80.7 8..7 80.7 80.9 80.9 80.9 80.9 80.9 A1.9 80.9

GE 350C 77.9 8L.3 81.2 81.4 83.2 83.3 83.8 84.0 84.2 84.3 84.3 84.3 84.3 F4.3 84.3 e4.3

GE 300O1 79.6 82.0 83.1 83.3 85.9 86.2 86.6 86.9 87.0 87 . I AT.2 87.2 87.2 87.2 87.2 87.2

GE 250CI 80.6 83.5 85.1 85.3 88.1 88.3 88.9 89.4 89.5 89.6 89.7 89.7 89.7 89.7 89.7 89.7

GE 2301 81.4 84.6 86.3 P6.5 89.8 90.1 90.8 91.3 91.4 91.5 91.8 91.8 91.8 91.8 91.8 91.8GE irC 1 81.4 84.6 86.3 86.5 89.8 90.1 90.8 915. 91.6 91.7 92.1 92.1 92.1 92.1 92.1 92.1GE 150 1 81.4 84.8 86.6 87.0 90.3 90.5 92.0 92.9 93.0 93.3 93.6 91.6 93.6 93.6 93.6 93.6GE 12001 81.6 84.9 86.8 97.1 90.4 90.8 92.4 93.7 93.9 94.2 94.6 94.6 94.6 94.6 99.6 94.6

GE 17OI 81.6 84.9 87.0 87.4 90.7 91.0 93.0 94.3 94.7 95.2 96.0 96.0 96.0 96.1 96.2 96.2GE 90:1 81.6 84.9 87.2 87.6 90.9 91.3 93.3 94.6 94.9 95.4 96.2 96.2 96.2 96.3 96.5 96.5GE 8001 81.6 84.9 87.2 97.6 90.9 91.3 93.3 94.8 95.2 95.6 96.7 96.7 96.7 96.8 96.9 96.9GE 7011 81.6 894.9 87.2 87.6 90.9 91.3 93.4 94.q 95.3 95.9 96.9 96.9 96.9 97.0 97.2 97.2

GE 6UC 81.6 84.9 87.2 87.6 91.0 91.4 93.5 95.0 95.4 96.0 97.0 97.0 37.0 97.2 97.3 97.3

GE 50c 81.7 q5.0 87.4 87.7 91.3 91.6 93.7 95.3 95.6 96.6 97.9 97.9 98.1 98.2 99.5 98.5

GE 4001 81.7 85.0 8.4 87.7 91.3 91.6 93.7 95.3 95.6 96.6 97.9 98.0 98.2 98.3 98.6 98.8GE 30o1 81.7 85.0 87.4 87.7 91.3 91.6 93.7 95.3 95.9 96.8

9A.1 98.3 98.6 98.7 98.9 99.4

GE 2Ocl 81.7 85.0 87.4 87.7 91.3 91.6 93.7 95.3 95.9 96.8 9f . 1 98.5 98.7 98.8 99.1 99.5GE lOCl 81.7 85.0 87.4 87.7 91.3 91.6 93.7 95.3 95.9 96.9 98.2 98.6 99.1 99.3 99.5 I10.0

GE c 81.7 8.0 87.4 87.7 91.3 91.6 93.7 95.3 95.9 96.9 99.? 98.6 99.1 99.3 99.5 100.0

TOTAL NUM9ER OF 08SERVATIONS: 946

""' 'i i ' "'-- I T~il - "-i i ' I i .i IIi, l -ARlM -\

. .

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY



STATION NUMBER: 726225 STATION NAME: PLATTSBURGH A6F My PERIOD OF RECORO: 78-87MONTH: FEB HOURSILSTI: 2100.Z300

..................................................... .......................... .............................................CE IL IG VISIBILITY IN STATUTE MILES

IN |GE GE GE GE GE GE GE GE GE GE rE GE GE GE GE GEFEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 St 112 5/16 1/4 0

F NO CEIL 5 48.9 49.2 49.6 49.b 49.8 49.8 49.9 50.1 50.2 50.4 50.4 50.4 50.4 50.4 50.4 50.4

GE 2000C0 51.2 51.4 51.9 51.9 52.0 52.0 52.1 52.4 52.5 52.6 52.6 52.6 52.6 52.6 52.6 52.6

GE 80001 51.3 51.5 52.0 a 20 52.1 52.1 52.2 52.5 52.6 S2 7 52.7 52.7 5z 7 52.7 52.7 52.7

GE 6OCS 51.3 51.5 52.0 52.0 52.1 52.1 52.2 52.5 52.6 52.7 57.7 52.7 52.7 52.7 52 7 52.7GE 1OOCI 51.8 52.0 52.5 52.5 52.6 52-6 52.7 53.0 53.1 53.? 53.2 53.2 53.2 53.2 53.2 SI.2

GE 120001 52.6 52.8 53.3 53.3 53.4 53.4 53.5 53.8 53.9 5N.0 5N.0 54.0 54.0 S4.0 54.0 54.0

GE lOGOCI 55.6 55.9 56.4 56.5 56.6 56.6 56.7 57.0 57.1 57.2 57.2 57-2 57.2 57.2 57.2 57.2

GE 90001 56.S 56.9 57.3 57.4 57.6 57.6 57.7 57.9 58.0 s8.2 5P.2 5Sd.2 58.2 58.2 59.2 58.2

GE 800C 59.7 6C.0 60.5 60.6 60.8 60.8 60.9 61.1 61.2 61.3 bl. 61.3 61.3 61.3 61.3 61.3

GE 700 1o 61.3 61.1 62.Z 62.3 62.4 62.4 62.5 62.8 62.9 63.0 63.0 610 63.0 63.0 63.0 63.0GE 600C0 62.9 63.1 63.6 63.7 63.9 63.9 64.1 64.3 64.4 64.5 64.5 64.5 64.5 64.5 64.5 64.5

GE SOCCS 67. 68.0 68.8 68.9 69.4 69.4 69.5 69.7 69.9 70.0 7n.0 70.0 70.0 70.0

70.0 7.0GE 4500 5 71.0 72. 2 73:2 73.3 73.8 73.8 74.0 74.2 74.3 74.6 74.6 74.6 74.6 74.6 74.6 74.6GE 4nooI 74.3 75.8 77.0 77.1 78.3 78.3 78.5 78-7 78.8 79.1 79.3 79.1 79.1 79.1 79.1 79.1

GE 350C0 76.1 78.1 79.4 79.7 81.2 81.2 81.4 81.7 81.8 82.0 82.0 82.0 82.0 82.0 82.0 82.0

GE 30001 78.5 81.a4 83.1 83,5 8S.6 85.6 85.9 86.2 86.3 86.5 6.S 6. 86.5 A6.5 86.5 86.5

GE 25001 79.3 82.9 8,8 5.1 87.4 87.4 67.7 58.1 88.2 8.:4 884 88.4 88.4 8.:4 89.4 88.4GE 2100 80.0 83.8 86.3 86.9 9 9 94 0.9 1 1 91 3 913 913 91.3 91.3

GE 18c0 8.1 83.9 86.4 87.0 89.5 89.7 90.8 91.3 91.4 91.6 91.6 91.7 91.7 91.? 93.7 91.7

aE 15001 80.3 84.2 86.8 87.4 90.7 90.9 92.4 93.1 93.4 93.9 93.9 94.0 99.2 94.2 94.2 94.2

GE 1205C 80.3 84.2 86.8 87.4 90.7 90.9 92.4 93.1 93.5 94.1 94.1 94.2 94.6 94.7 94.7 94.1

GE 10003 80.3 84.Z 87.0 87.6 90.9 91.1 93.4 94.1 94.4 95.2 95.7 95.9 96.2 96.1 96.3 96.3

GE 9 Ou 80.3 84.2 87.0 87.6 90.9 91.1 93.4 94.2 94.6 95.3 95.9 96.1 96.6 96.7 96.7 96.7

GE 80C 80.3 84.2 87.0 87.6 91.1 91.4 93.6 94.4 94.8 95.5 96.2 96.8 97.3 97.4 97.4 97.5

GE 7005 80.3 84.2 87.0 87.6 91.1 91.4 93.7 94.6 94.9 95.6 96.3 96.9 97.4 97.5 97.5 97.6

GE 6005 80.3 84.2 87.0 87.7 91.4 91.6 94.0 95.0 95.4 06.1 96.8 97.4 97.9 98.0 98.0 9b.3

GE 50c 80.1 84.2 87.0 P7.8 91.5 91.7 94.1 95.2 95.5 96.2 96.9 97.5 98.3 98.6 9e.6 96.7

GE 400) 80.3 84.2 87.0 7.8 91.5 93.7 94.1 95.2 95.5 96.2 96.9 97.8 98.7 98.9 98.9 99.3

GE 30 1 80.3 84.2 87.0 97.8 91.5 91.7 94.1 95.2 95.7 96.5 97.2 98.0 98.9 99.2 9q,2 99.6GE 20C 80.3 84.2 87.0 :7.8 91.5 917 9,4.1 95.2 95.7 96.5 97.2 98.0 98.9 99.2 99,2 99.6

GE 1005 80.3 84.2 87.0 81.8 91.5 91.7 94.1 95.2 95.7 96.5 9,7 98.0 99.1 99.4 91.5 10 .0

GE 01 80.3 84.z 87.0 87.8 91.5 91.7 94.1 95.2 95.7 96.5 97.2 98.0 99.1 99.4 90.5 1O.O

TOIAL NUMBER OF OBSERVATIONS: 446i.

-"i0malllm £immk.

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 126225 STATIC& NAME: PLATTSBURGH &FB Ny PERIOO OF RECORO: 78-87MONTH: FEB HOURS(LSIl. ALL

CE ILING VISIBILITY IN 5TATUIE M1LE5 "

IN 3 GE CE GE GE GE GE GE 5E GE GE GE GE GE GE GE GE

FEET 1 10 6 5 4 3 2 1(2 2 1 1/2 1 1/4 1 3/4 518 112 5116 114 0

NO CEIL 1 45.3 45.7 45.8 45.9 46.0 46.0 46.1 6.2 46.2 46.2 46. 8 46.2 46.2 46.2 46.2 46.2

GE 200001 49.1 49.5 49.7 49.7 49.9 49.9 49.9 50.0 50.0 50.0 50.0 50.0 50.0 50.0 53.0 50.0GE 180003 49.5 49.9 50.1 50.2 SO.3 50.3 SO.4 5D.4 50.5 50.5 St.5 50.5 50.5 50.5 50.5 5L.5GE 1600C 49.6 5C.1 5O.? 50.3 50.4 50.4 50.5 50.6 50.6 50.6 S0.6 5C.6 50.6 50.6 50.6 SC.6GE 140001 50.3 50.7 50.9 11.0 51.1 51.1 51.2 51.2 51.2 51.3 $I.3 51.3 51.3 51.3 S1.3

GE IZOOCl 52.1 52.5 52.7 52.9 53.0 53.0 53.1 53.1 53.2 53.2 51.2 53.2 53.2 53.2 53.2 53.2

GE 100001 55.5 56.2 56.4 56.6 56.8 56.8 56.9 57.3 57.0 57.0 57.0 S7.0 57.0 57.0 57.0 57.0

GE 900C1 56.0 56.8 57.0 37.2 57.4 57.4 57.5 57.6 57.6 57.6 57.6 57.b 57.6 S7.6

57.6 S7.6GE 6Oc0 58.8 59.6 59.9 60.1 60.3 60.3 60.4 60.5 60.5 60.5 60.5 60.5 60.5 6C.5 60.5 6C,.5

GE 7DOC| 61.0 62.0 62.4 62.7 63.0 63.1 63.3 63.4 63.4 63.4 61.4 63.4 63.4 63.4 63.4 63.4

GE 600C) b2.6 63.7 64.2 64.5 64.9 65.0 6S.2 65.3 65.3 65.4 65.4 65.4 65.4 65.4 bs.4 65.4

GE sGOI 66.7 67.9 68.6 69.0 69.5 69.5 69.8 69.9 70.0 70.0 711.0 70.0 70.0 70.0 70.0 T0.0GE 450C 70.4 72.1 73.0 73.4 74.0 74.1 74.4 74.6 74.6 74.7 74.7 74.1 74.7 74.7 74.7 74.7

GE 4VOO| 73.1 75.5 76.6 77.1 78.0 78.2 78.5 7.7 78.7 78.8 7A.9 78.9 78.9 78.9 79.9 78.9

GE 35001 75.2 78.1 79.3 79.9 81.0 81.1 81.5 81.7 81.8 81.9 81.9 81.9 81.9 81.9 81.9 81.9

GE 30OCI 77.8 81.5 83.0 83.7 65.3 85.5 85.9 86.2 86.3 86.4 86.4 86-4 86.5 R6.5 86.5 86.5

GE '250I 79.0 83.2 85.2 86.0 47.8 88.1 88.7 89.1 89.1 89.3 89.3 89.3 89.4 89.4 49.4 P9.4

GE 200C3 79.7 84.2 86.6 87.4 49.1 89.8 90.8 91.3 91.4 91.6 91.7 91.7 91.8 91.8 91.8 91.8GE 18C 79.7 84.3 86.6 87.5 89.6 90.0 91.0 91.b 91 7 q1.9 92.0 92.1 92.2 92.2 92.2 92.2

GE 15001 7Q.9 8q.5 86.9 87.8 90.1 9r.5 91.8 92.6 92-8 93.2 93.4 93.4 93.5 93.5 93.5 93.5

GE 12003 79.9 84.6 87.0 87.9 90.3 90.7 92.1 93.0 93.3 93.7 93.9 94.0 94.1 94.1 94.1 94.1

GE 10001 79.9 84.6 87.2 88.1 90.6 91.0 92.7 93.7 94.1 94.9 95.3 95.4 95.6 958 7 95.7 95.7GE 9CI 79.9 84.7 87.2 88.1 90.7 91.1 92.8 93.9 94.3 95.1 95.6 95.7 95.9 95.9 94.0 96.0

GE 80c 8o.0 84.7 87.3 88.2 90.9 91.4 93.1 94.2 94.6 95.5 96.1 96.3 96.6 96.6 96.7 96.7

GO 7003 80.0 14.7 87.3 88.2 91.9 91.4 93.2 94.3 94.7 96.6 96.3 96.5 96.7 96.8 96.9 96.9

GE 60CI 80.0 84.7 87.3 88.3 91.0 91.4 93.3 94.5 91.0 95.9 96.6 96.8 97.0 97.1 97.2 97.2

GE SGOI 80.0 84.8 874 88.3 91.1 91.5 93.4 94.7 95.2 16.3 97.1 97.3 97.8 97.9 98.1 98.2

GE 40CI 80.0 84.8 87.4 88.3 91.1 91.6 93.6 94.9 95.4 96.5 97.4 97.7 98.2 98.3 98.6 98.8GE 30c 80.0 84.8 87.& 88.3 91.1 91.6 93.6 94.9 95.5 96.8 97.7 98.0 98.6 98.7 99.1 99.4

GE 2003 80.0 894.8 87.4 88.4 91.2 91.6 97.6 95.0 95.6 96.9 97.9 98.2 9s.0 99.0 99.5 99.8

GE Lol 80.0 84.8 87.4 88.4 91.2 91.7 93.7 95.1 95.7 97.0 98.0 98.3 99.0 99.2 99.7 1O0.0

GE ci 80.0 84.8 87.4 88.4 91.2 91.7 93.7 95.1 95.7 97.0 94.0 98.3 99.c 99.2 99.7 100.0


GLI.8AL CLIMATOLOGY BRANCH PERCENTAE FREQUENCY OF OCCURPENCE OF CEILING VERSUS V1SIBILITY

uSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER sERvICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS MY PERIOD OF RECORD: 78-87

MONTH: MAR HOURSILSTI: 0000-0200

GE ILING SILI?1 ?TrM 1

s

IN GE GE GE GE GE GE GE GE GE GE GE Gr GE GE GE GEFEET 10 6 5 4 3 2 112 z 1 112 1 1/4 1 3/4 St8 1/12 5/16 1/ 0

NO CEIL 1 %. 8 45.3 45.4 4.4 415.4 45.4 4S.4 45.4 '45.4 15.4 4.4 45.4 45.'. '.5. '5.4 l5.4

GE 200001 47.1 41.5 47.6 7.8 47.6 47.6 47.6 41:6 4?.6 47.6 47.6 47.6 47.6 47.6 47.6 47.6GE 18000 47.1 41.5 7.6 41.6 47.6 6 47.b 47.6 ,7.6 47.6 47 6 41.6 7 1.6 '.6 41.6

GE 16100C 47.3 4 .7 47.8 47.8 47.8 47.8 %7.8 41.8 47.8 47.8 47.8 41.8 47.8 47.8 47.8 47.8GE 1400C 47.7 48.2 48.3 48.3 .8 .3 48.3 48.4 'a.4 44.4 48.4 4.4 18.4 48.4 48.4 48. 48.4GE 120001 48.3 48.7 48.8 48.8 48.8 48.8 48.9 1.8.9 48.9 48.9 48.9 48.9 48.9 '8.9 48.9 48.9

bE IO0G0 52.6 53.0 53.1 53.1 53.1 53.1 53.2 53.2 53.2 53.2 53.2 41.2 53.2 53.2 53.2 53.2

GE 90001 52.6 53.0 53.1 53.1 53.1 53.1 53.2 53.2 53.2 53.2 53.2 53.2 53.? 51.2 0..2 53.2GE 800i 54.9 55.7 55.8 55.8 55.8 55.8 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 5-.9 S5.9

GE 70U01 57,5 58.3 58.6 58.6 58.6 58.6 58.7 58.1 58.1 58.7 58.7 58.1 58.T 58.7 58.7 58.7

GE 60001 60.3 61.1 61.6 61.6 61.6 61.6 61.7 bl.7 61.7 61.7 61.7 61.7 61.7 61.7 bl.7 61.7

GE 50001 64.9 66.8 68.1 68.2 68.3 68.3 b.4 68.4 68.4 68.4 6A.4 68.4 648. 68.. 68.4 6b.4

GE 45001 68.5 7C.9 72.2 72.3 72.4 72.' 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5 12.5 72.5

GE 40001 70.2 73.1 74.5 74.6 75.2 75.2 75.3 75.3 75.3 75.3 7S.3 75.3 75.3 75.3 75.3 75.3

GE 350U0 73.1 77.1 7F.6 78.8 79.4 79.4 79.5 79.5 79.5

79.5 7Q.5 79.5 79.5 79.5 79.5 79.5

GE 30001 75.6 81.0 82.6 82.8 84.2 84.2 84.3 84.3 84.3 84.3 84.3 84.3 84.3 A4.3 84.3 84.3

GE 25i11 77.0 82.7 84.5 84.8 86.6 86.7 86.9 87.(3 87.0 87.0 87.0 81.0 87.0 97.0 87.0 87.0GE 200C1 77.3 83.4 85.4 85.7 87.5 87.6 88.4 88.6 88.6 88.8 84.8 88.8 88.8 P8.8 88.8 68.8GE 1001 77.3 83.7 85.6 85.9 87.7 87.8 88.6 88.8 88.8 89.1 89.1 89.3 89.1 P9.1 89.1 44.1GE 150C) 77.' 83.9 85.8 86.5 88.7 89.0 90.4 93.6 90.6 91.3 91.1 91.3 91.3 95.3 91.3 91.3

GE 12001 77.4 84.0 8b.2 86.9 89.2 89.6 91.0 91.3 91.3 91.9 91.9 91.9 91.9 92.0 92.0 92.2

GE 1001 77.6 84.2 86.6 7.4 90.0 90.5 92.3 93.2 93.2 q4.1 94.2 94.3 94.3 94.4 94.4 94.5

GE 9001 77.6 84.2 86.6 87.5 90.1 90.6 92.4 93.3 93.3 94.2 94.3 94.5 94.6 q4.7 94.7 94.8

GE RO01 77.6 84.2 86.7 88. 90.8 91.3 93.1 94.2 94.2 95.1 95.2 95.4 95.7 95.8 95.9 96.0GE 7001 77.6 34.2 86.7 88.1 90.9 91.4 93.2 94.3 94.3 95.2 95.4 ).7 96.1 96.2 96.3 96.5GE 6001 77.6 84.2 86.7 46.1 90.9 95.4 93.2 94.5 94.5 95.4 9S.6 96.0 96.5 96.6 96.7 96.8

GE 5U00 77.6 84.2 86.7 88.1 91.1 91.7 93.7 95.4 95.5 96.5 96.7 97.1 97.5 97.6 97.7 97.8

GE 'UC# 77.6 84.3 86.8 88.2 91.3 91.9 94.2 95.9 9b.C "7.1 97.3 97.7 98.2 98.3 9A.4 96.5GE 3001 77.6 84.3 86.8 88.2 91.3 91.9 94.5 96.2 96.3 97.5 97.8 98.3 98.7 98.8 9s.9 99.1

GE 2U00 77.6 841.3 86.8 88.2 91.3 91.9 94.7 96.6 96.9 18.1 98.4 98.8 99.5 99.6 99.7 5o.0GE IC1 77.6 84.3 66.8 88.2 91.3 91.9 94.7 96.6 96.9 98.5 94.4 98.8 99.5 99.6 99.7 100.0

GE 0 77.6 84.3 86.8 88.2 95.1 91.9 94.7 96.6 96.9 98.1 9A.4 98.8 99.5 99.6 99.7 )C.

IOTAL NUMBER Of CRSERVATIONS: 930S"_3

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCIJqPENC( OF CEILING VERSUS VISIBILITYUSAFETAC FrOM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PaTO0 OF RECORD: 78-6?MONTH: MAR HOURSILST): 0300-050o

CEILING VISIBILITY IN STATUTE MILESIN I GE CE GE GE 6E Gt GE GE GE GE GE GE 6E GE GE GE

FLEt I 10 6 5 4 3 2 112 2 1 1.2 1 114 1 314 5/8 112 5/16 1/4 0

NO CEIL I 42.9 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.4 O3.4 43.4 43.4 C3.4 43.4 43.4

GE 200001 45.4 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.2 46.2 46.2 46.2 46.2 46.2 46.2GE 1800C1 %5.7 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.6 46.6 46.6 46.6 46.6 46.6 46.6GE 16U0o C1 45.7 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46b.5 46.6 46.6 0 4-E!-E;.51 1., 5. , , t 1GE 14001 45.8 46.b 46.6 46.6 46.6 4b.b 46.6 46.6 46.6 46.7 46.7 46.7 46.7 46.7 46.7 46.7GE 120001 47.3 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.2 48.2 48.2 48.2 48.2 40.2 48.2

GE 1O001 49.0 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 50.0 50.0 50.0 50.0 50.0 50.0 50.0GE 90001 49.0 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 50.0 50.1 5C.0 50.0 50.0 50.0 50.0GE 80ucI 52.0 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 53.0 53.0 53.0 53.0 53.0 53.0 53.0GE 70Gcl 54.2 55.2 55.2 55.Z 55.2 55.2 55. Z 55.2 55.2 55.3 55.3 55.3 55.3 55.3 55.3 55.3GE 60001 56.1 57.1 57.2 57.2 57.3 57.3 57.3 57.3 57.3 57.4 57.4 57.4 57.4 57.4 57.4 57.4

GE SOOCI 60.5 62.4 63.0 63.0 63.3 63.3 61.3 63.3 63.3 63.4 63.4 63.4 63.4 63.4 6.4

63.4GE 151001 65.6 67.8 68.9 68.9 69.4 69.4 69.4 69.4 69.4 69.5 69.5 69.5 69.5 69.5 69.5 69.5GE 40001 68.8 71.2 72.5 72.7 73.1 73.1 73.1 73.1 73.1 73.2 73.2 73.2 73.2 73.2 73.2 73.2

GE 35001 72.0 74.8 76.2 76.6 77.1 77.1 77.1 77.2 77.2 71.3 77.3 77.3 77.3 7?.3 77.3 77.3GE 30001 74.1 78.6 80.9 81.2 81.9 82.0 82.2 82.3 82.3 82.4 82.5 82.5 82.5 82.5 82.5 82.5

GE 25UC1 75.3 8C.2 82.5 83.0 83.8 84.0 84.4 84.6 84.6 84.8 84.9 84.9 84.9 04.9 84.9 84.9GE 20001 76.7 82.9 85.4 86.1 87.4 87.6 88.3 88.5 88.5 88.7 88.8 88.9 88.9 88.9 88.9 88.9GE IOGG 76.7 82.9 85.4 86.1 87.4 87.6 88.3 86.5 88.5 88.7 88.8 88.8 88.9 88.9 88.9 48.9GE 1500| 76.8 83.7 86.2 87.3 89.4 89.8 90.8 91.2 91.3 91.5 91.8 91.8 91.9 91.9 91.9 91.9GE I2C 76.8 83.7 86.5 87.6 90.0 90.4 91.4 91.8 91.9 92.5 97.8 92.8 92.9 92.9 92.9 92.9

GE I0001 76.9 83.8 86.6 87.7 90°. 91.0 92.0 92.7 92.8 93.4 94.2 94.2 94.3 94.3 94.3 94.3GE 9001 76.9 83.8 86.9 86.2 90.9 91.4 92.6 93.3 93.4 94.1 94.8 9 .8 95.1 q5.1 QS.j 95.1GE 80CI 76.0 83.8 86.9 88.3 91.2 91.8 93.2 94.1 94.2 94.8 95.7 95.9 96.1 96.1 96.1 96.1GE 700| 76.9 83.8 86.9 08.4 91.3 91.9 93.3 94.3 94.4 95.1 95.9 96.1 96.5 )6.5 96.5 96.5GE 6001 76.9 83.8 87.1 88.8 91.8 92.5 93.9 94.8 94.9 95.7 96.6 96.8 97.1 97.1 97.1 97.1

GE s00 77.1 84.0 87.3 89.2 92.4 93.2 94.6 9 95.8 76.6 97.4 97.6 98.1 98.1 9R.1 98.1GE 4001 77.1 84.0 87.3 89.2 92.4 93.2 94.7 95.8 96.C 96.9 98.1 98.3 98.7 98.7 98.7 94.7GE 3001 77.1 84.0 87.3 89.2 92.4 93.3 9S.1 96.5 96.7 97.5 98.7 98.9 99.4 99.4 99.4 99.4GE 20CI 77.1 84.0 87.3 89.2 92.4 93.3 95.1 96.6 96.8 97.6 99.0 99.2 99.7 99.8 99.8 99.6GE loci 77.1 84.0 87.3 89.2 92.4 93.3 95.1 96.6 96.8 97.6 99.0 99.4 99.8 100.0 100.0 100.0

GE 01 77.1 84.0 87.3 89.2 92.4 93.3 at.1 96.6 96.8 97.6 99.0 99.4 99.8 100.0 100.0 100.0


- L JI-

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREUUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY



STATION NUMBERt 726Z25 STATICh NAME: PLATTSBURGH AFB Ny PERIOD OF RECORO: 78-87

MONTH: MAR HOURSILSTI: 0600.0800

..........................................................................................................................................CEILING VISIBILITY IN STATUTE MILES


FEET In 6 S 8 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5116 111 0...........................................................................................................................

NO CEZL 1 39.' 39.8 39.9 39.9 40.2 140.2 .0.2 '0.2 .0.2 40.2 '0.3 '0.3 40.3 40.1. '0.5 '0.5

CE 70000i! &?,k s)-'. '.7.9 0.3=! 63-5 OATS Ify5 -!. 10- , 17 6 .. IQ . .

GE 180001 42.6 '3.0 '3.1 '.3.3 93.8 '3.8 '.3.8 '3.8 983.8 .3.8 43.9 '3.9 43.9 ..0 4..1 N'. .1

GE IbOOCI 42.8 '3.2 '3.3 93. 4.10 '..0 .t- '.8.0 '..0 '..0 '.. '..1 '4..1 '4.'2 .3 '4.3GE 1O000 '.1 '.05 '.,6 45. 3 15.3 '.5.3 '5.3 '5.3 '5.3 '5.'. '.' '.5. .5,5 '5.6 5.6GE 2 1 '. ' .6.3 '.66 ' '0 '7.0 47.0 '.7.0 '7.0 '7.1 7.1 '7.1 7.2 47.3 '73

GE 10001C '9.1 '9.7 '9.8 SO.0 50. so.' 50.' 50.' 50. 50.' 50.5 50.5 50.5 50.6 50.8 50.8GE 900C| '19.5 5C.0 50.1 50.3 50.8 50.8 50.8 50.8 50.8 50.8 S0.9 50.9 51.9 51.0 51.1 51.1

GE 8000| 53.7 51.' 58.5 54-7 55.2 53.2 55.2 55.2 55.? 55.2 55.3 55.3 55.3 55.' 55.5 55.5GE 7001C 56.8 57.5 57.6 57.8 58.3 58.3 58.3 58.3 58.3 58.3 '.' S8.4 58.' 58.5 58.6 58.6GE 60001 58.' 59.6 59.9 60.2 60.6 60.6 60.8 60.8 61.0 61.0 61.1 61.1 61.1 61.2 61.3 61.3

GE 50001 61.9 63.' 68.0 68.3 6'.8 68.8 68.9 65.1 65.3 65.' 65.5 65.5 65.5 65.6 65.7 65.7GE '50cI 66.0 68.2 68.8 69.1 69.8 69.8 69.9 70.1 70.3 70.4 70.5 70.5 70.5 70.6 70.8 7o.8

GE 0O)UCI 68.2 7C.5 71.6 71.9 72.8 72.8 72.9 73.1 73.3 73.' 73.7 73.7 73.8 73.9 7.0 78.0

GE 350| 71.'. 7'.0 75.6 76.1 77.1 771 77.2 177, 7, 77.7 79.0 78.0 78.1 78.2 78.3 78.3GE 300C 73.8 768 78.9 79.5 8313 81.3 81.8 82.0 82.3 82.' 82.6 82.6 82.7 82.8 82.9 52.9

GE 230C 75.2 78.8 81.9 82.5 8 84' 8'.' 8'.9 55 85.7 85.8 86.0 86.0 86.1 86.2 86.3 86.3GE 200C 76.3 81.8 88.3 85.2 87.3 87.3 88.5 89.2 89.5 97 89.9 8i.9 90.1 90.2 9'.3 90.3

GE 1801C 76.9 81.3 88.8 85.7 87.8 87.8 89.0 89.8 90.0 90.2 90. 90.'. 90.6 qC.8 90.9 90.9GE 15001 77.7 81.9 85.7 86.7 88.8 88.9 90.3 91.2 91.8 91.8 92.0 92.0 92.3 92.' 92.5 92.5GE 12001 77.3 82.3 86.1 87.1 89.2 89.' 90.9 91.7 91.9 92.5 92.7 92.7 92.9 93.0 93.1 93.1

GE oC 17.'. 82.5 86.8 87.8 90-. 90.6 92.' 93.3 93.7 98.6 98 9'.8 95.3 93.' 95.5 95.5

GE 9LC 77.' 82.5 86.9 88.0 90.3 90.9 92.7 98.0 9'.' 9.'. 95.6 95.6 96.1 96.2 96.3 96.3

GE Roll 77.' 82.5 86.9 88.0 90.5 90.9 92.8 98.2 94.6 95.6 95.8 95.8 96.3 96.5 96.6 96.6GE 700) 77.' 82.S 86.9 88.0 90.5 90.9 97.8 9'. 98.7 95.7 95.9 95.9 96.5 96.6 96.7 96.7GE 600) 77.5 82.6 87.1 88.2 90.8 91.1 93.1 9'.6 95.2 96.1 96.5 96.5 97.1 97.3 97.4 97.

GE 5011 77.5 82.6 87.3 88.3 91.1 91.' 93.5 95.2 95.7 96.8 97.2 97.2 98.0 Y8.2 98.3 98.3GE 'U.0 77.5 82.6 87.1 88.3 91.1 91.' 93.5 95.3 95.8 97.1 97.8 91.8 98.6 98.9 99.0 99.0GE 300) 77.5 82.6 87.1 88.3 91.1 91.8 93.5 95.5 96.0 97.3 98.1 98.1 98.8 99.1 99.2 99.2

GE 20C1 77.5 82-6 87.1 88.3 91.1 91. 93.S 95.5 96.1 97.5 980 98.' 99.1 99.3 99.6 99.7

GE 1001 77.5 82.6 87.1 88.3 91.1 93.' 93.5 95.5 96.1 97.5 9q.4 98.'. 99.1 99.5 99.6 110.0

GE cI 77.5 82.6 87.1 88.3 91.1 91.' 93.S 95.5 96-1 97.5 98.' 98.' 99.1 99.5 99.6 100.0


AL-. ... .-. ,,.h_- -

GL6BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFEyAC FROM HCURLY OBSERVATIONSAIR WEA1HER SERVICE/MAC

5TATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 Ny PERIOD OF RECORD: 7B-B1MONTH: MAR HOURS(LS11: 0900-1100

CEILING ViSIBILITY IV STATUTE MILES

IN I GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 N 3 2 1/Z 2 1 112 1 1/ 4 1 319 5/8 112 5/16 114 a

NO CEIL 1 '.1.7 42.0 2.0 12.3 2 22.5 ',5 42.5 '2.5 42.5 '2.5 '2.5 42.5 42.5 '2.5 4..5 '2.5

) U 200001 '41.6 5°9 '.5.9 '.6.1 '.6.5 '.6.6 '6.5 '.b5 '.6.5 '.6.5 '.6.5 '6. '.6.5 '.6.5 .6.5 '.6.5

GE 180001 46.2 46.6 46.b 46.8 67.1 4.7.1 47.1 4 7.1 47.1 87.1 £ 7.1 47.1 '7.1 '7.1 47.1 47.1GE 16IOCI 46.3 46.7 46.7 46.9 '7.2 '7.2 47.2 47.2 47.2 47.2 47.2 '?.2 47.2 47.2 '7.2 47.2GE 14OUGI 47.6 48.0 '8.0 8.2 '8.5 '.8.5 48.5 :8.5 '8.5 -. 5 18.: 'f.S 8.5 8.5 '..5 48.5GE 1200C0 9.6 50.1 s.1 50.3 50.6 5.6 50.6 50. 6 50 6 5.6 O 06 506 506 5 50.6 5 .6

GE 100001 53.8 S'..5 5.5 59.7 55.1 55.1 55.1 55.1 55.1 55.1 5S.1 55.1 55.1 55.1 55.1 55.1GE 99001 54.5 55.3 55.3 55.5 55.9 55.9 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.u 56.0 56-0GE 80O0i 57.7 58.7 58.9 59.i 59.6 59.6 59.7 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8GE 70jol 59.8 61.0 61.3 61.5 61.9 61.9 62.0 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2

r"GE 60001 62.3 63.5 69.1 69.6 65.1 65.2 65.' 6S.5 65.5 65.5 65-5 65.5 6S.5 65.5 6S.5 65.5

GE 500CI 65.8 67.7 68.3 68.8 69.5 69.7 69.9 70.2 70.3 70.3 71.3 7C.3 70.3 70.3 73.3 70.3

GE 45UO 67.7 70.0 70.6 71.2 72.2 72.' 72.7 73.0 73.1 73.3 73.3 73.3 73.3 73.3 73.3 73.3GE '[7001 70.3 79.0 79.9 75.6 76.7 77.G 77.3 77.7 77.8 78.1 78.1 78.1 78.1 78.1 78.1 78.1GE 35DI 7'.1 78.1 79.' 80.1 81.3 81.7 82.0 82.5 82.6 82.8 82.8 82.8 82.8 82.8 82.8 82.8GE 30001 75.8 8C.3 82.3 83.1 8'.8 85.3 85.8 86.8 86.9 87.1 87.1 87.1 87.1 87.1 87.1 87.1

GE 25001 76.8 81.8 89.'. 85.5 87.4 88.0 88.6 89.9 90.1 90.' 90.'. 90.' 90.' 90.' 90.9 9c.'GE 2000e 77.3 83.0 86.0 87.2 8q. 2 90.0 90.6 92.0 92.3 92.6 92.8 92.8 92.8 92.8 92.8 92.8GE 18U00 77.9 83.1 86.1 87.3 89.' 90.1 90.8 92.2 92.' 92.7 92.9 92.9 92.9 92.9 92.9 92.9GE 15001 78.0 8'..0 87.1 88.9 90.6 91.4 92.'. 93.8 9'.0 99.5 99.7 94.7 9'..? 99.7 99.7 9'.7GE 12001 78.1 89.1 87.2 88.5 91.1 91.9 92.9 9'.3 94.5 95.3 95.6 95.6 95.6 95.6 95.6 9S.6

GE 10001 78.2 89.5 88.0 89.' 91.9 92.8 93.9 9S.' 95.6 96.6 97.1 97.1 97.2 97.2 97.2 97.2GE 9001 78.2 89.5 88.0 89.' 91.9 92.8 99.0 95.6 95.8 96.9 97. 97.' 97.5 97.5 97.5 97.5GE 80CI 78.2 84.S 88.0 89.' 91.9 92.8 99.2 95.8 96.0 97.3 97.8 97.8 98.1 98.2 9S.2 98.2GE 700 78.2 89.5 88.0 89.' 91.9 92.8 99.2 95.9 96.1 97.4 95.0 98°0 98.7 q8.3 98.3 98.3GE 61C0 78.2 89.5 88.0 89.9 91.9 92.8 99.2 95.9 96.1 97.' 90.0 98.0 98.2 98.3 98.3 98.3

GE 5001 78.2 89.5 88.0 89.' 92.0 92.9 99.3 96.0 96.2 97.5 98.1 98.1 98.3 08.4 9F.4 98.GE 4001 78.2 8'.5 68.0 89.5 92.2 93.U 9'. 96.1 96.5 08.0 98.5 98.6 98.9 99.0 99.0 99.0GE 3001 78.2 89.5 889.0 89.5 92.2 93.0 99. 96.1 96.5 98.1 9P.8 99.0 99.'4 99.7 99.7 99.7GE 20C| 78.2 8..5 88.0 89.5 92.2 93.0 9'. 96.1 96.5 98.1 98.8 99.0 99.6 99.9 99.9 99.9GE 10C0 78.2 89.5 88.0 89.5 92.2 93.0 9'. 96.1 96.5 08.1 98.8 99.c 99.6 99.9 99.9 100.0

GE Cl 78.2 8'.5 88.0 89.5 92.2 93.0 9'. 96.1 96.5 98.1 98.8 99.0 99.6 99.9 99.9 100.0

TO1AL NUMBER OF OBSERVATIONS: 930

* .

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSA1R WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: MAR HOURSILSTI: 1200-1400

CEILING VISIBILITY IN StATUTE RILES

IN | GE GE GE GE GE GE GE GF GE GE GE GE GE GE GE LEFEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/1 i 3/4 58 112 5/16 1/6 0

NO CEIL 1 61.8 4Z.8 42.8 43.1 43.5 63.5 63.5 63.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5

GE 200001 46.7 41.6 47.6 48.0 48.6 68.4 48.6 68.4 48.4 48.4 4A.4 48.6 48.6 48.6 48.6 48.4GE 180001 468.2 49.2 49.2 69.6 50.0 50.0 50.0 so.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0GE 160001 48.2 65.2 49.2 69.6 50.0 50.0 50.0 50.0 50.0 50.0 51.[ 50.0 51.0 50.0 50.0 so.0GE 14ooI 68.7 49.8 69.A 50.1 50.5 50.5 5O5 50.5 50.5 50.5 50 .5 S0.5 50.5 sc.5 50.5 50.5GE 120001 50.1 51.2 51.4 51.7 52.2 52.Z 52.2 52.? 52.2 52.2 57.2 52.2 52.2 52.2 52.2 52.2

GE 100001 53.9 55.3 55.6 55.9 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3GE 93001 56.8 56.2 56.6 56.9 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3GE 8000 57.2 59.0 59.4 59.7 60.1 60.1 60.1 60.1 60.1 60.1 60.1 6C.1 60.1 60.1 60.1 60.1GE 7000 58.3 bC.9 60.8 61.1 61.5 61.5 61.5 61.6 61.6 61.6 61.6 61.6 61.6 61.6 61.6 61.6GE 600CI 60.8 63.0 63.6 S3.8 64.2 66.2 642 64.3 64.3 64.3 64.3 64.3 64.3 66.3 66.3 66.3

GE SOC 65.5 68.2 68.7 69.0 69.6 69.6 69.6 69.7 69.7 69.7 69.7 69.7 67.7 69.7 69.7 69.7GE 6 500 68.0 71.0 71.5 71.8 72.6 72.6 72.7 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8GE 40001 73.7 76.9 78.1 78.6 79.6 79.7 80.2 80.3 80.3 80.3 80.3 80.3 80.3 80.3 80.3 80.3GE 350C1 76.1 8C.0 81.Z 81.9 82.9 83.1 83.8 83.9 83.9 83.9 83.9 83.9 83.9 83.9 8.9 83.9GE 3000 79. 864.3 85.7 86.9 88.0 88.2 88.8 89.2 89.? 89.6 89.6 89.4 89.6 89.6 89.5 89.5

GE 25011 80.5 85.4 87.0 88.2 69.2 89.5 90.1 90.6 90.6 90.8 9(39 90.9 90.9 90.9 91.0 91.0GE 23001 80.8 86.7 88.6 89.9 91.2 91.5 9 9.3 97.9 92.9 93.1 93.8 93.8 93.8 93.8 93.9 93.9GE 18001 80.8 86.7 88.6 90.0 91.6 91.7 92.5 93.1 93.1 93.3 96.0 96.0 94.0 96.0 96.1 94.1GE 15001 80.8 87.0 89.0 40.8 92.5 92.9 93.8 96.4 96.7 95.2 9s.8 95.8 95.8 95.8 95.9 95.9GE 12001 81.0 87.6 89.6 91.3 93.0 93.4 94.6 95.2 95.6 96.1 96.9 96.9 96.9 96.9 97.0 97.0

GE 10001 81.1 87.5 89.8 91.5 93.2 93.7 96.9 95.7 96.1 96.7 97.5 97.7 97.7 98.0 98.2 96.2GE 90c] 81.1 87.5 89.8 91.5 93.2 93.7 96.9 95.3 96.3 96.9 97.7 98.0 98.0 98.2 98.6 98.6GE 8oo 81.1 87.5 99.8 91.5 93.2 93.7 95.1 95.9 96.5 97.0 97.8 98.1 98.1 98.3 98.5 98.5GE 7001 81.1 17.5 89.8 91.5 93.3 93.8 95.6 96.2 96.8 97.3 98.2 98.6 98.6 98.6 99.8 98.8GE 6001 8l.1 87.5 89.8 91.5 93.6 93.9 95.5 96.3 97.0 91.5 98.4 98.6 98.6 98.9 99.1 99.1

GE 500 81.1 87.5 89.8 91.5 93.6 93.9 95.5 96.5 97.1 97.6 98.5 98.7 98.8 99.1 99.4 99.6GE 400 81.1 87.5 89.8 91.5 93.6 93.9 95.6 96.6 97.2 97.7 9R.6 98.9 99.2 99.6 99.8 99.8GE 3001 81.1 87.5 89.8 91.5 93.4 93.9 95.6 96.6 97.3 98.0 9R.8 99.1 99.5 99.8 100.0 100.0GE 2019 81.1 87.5 89.8 91.5 93.4 93.9 95.6 96.6 97.3 98.0 96.8 99.1 99.5 99.8 100.0 100.0GE 1009 81.1 81.5 89.8 91.5 93.4 93.9 95.6 96.6 97.3 98.0 98.8 99.1 99.5 99.8 100.0 100.0

GE 01 81.1 87.5 89.8 91.5 93.4 93.9 95.6 96.6 97.3 98.0 98.9 99.1 99.5 99.8 100.0 100.0

............................................................................................................................................

TOTAL NLM ER OF O8SERVAT1OAS: 930

*e

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCC OF CEILING VERSUS VISIBILITY

USAFETaC FROM HOURLY OBSERVATIONS

All, WEATHER SERVICE/MAC

STATION NUMBER. 726225 STATION NAME: PLATISBURGH AFB Ny PERIOD OF RECORO: 78-87MONTH: MAR HOURSILSTI: I50-1100

C.................... "..V.... S.I;5BILITY IN S1ATUIE MILES

IN I FE GE GE GE GE GE GE GE G[ GE GE GE rE GE GE GE

FEET I 10 6 5 4 3 2 112 2 1 112 1 11% 1 3/4 518 1/Z 5/16 1/4 0

NO CEIL 1 X3.1 41.8 43.9 4'4.0 44.2 34.2 44.2 44.2 44.2 44.2 44.2 49.2 34*2 '41.2 44.2 44.2

GE 200001 16.7 41.3 47.5 47.6 41.8 47.8 47.8 47.8 47.8 47.8 47.8 '7.8 47.8 41.8 47.8 47.8

GE 180001 47.4 48.3 48.4 48.5 48.7 48.7 48.7 48.7 48. 48.7 48.7 48.7 48.1 48. 49.7 48.7

GE 160001 '7.4 48.3 48.4 48.5 48.7 48.7 48.7 48.7 48.7 48.7 48.7 48.7 48.7 48.7 48.7 48.7

GE 14OC0 '3.6 49.5 49.6 49.7 49.9 49.9 49.9 49.9 '9.9 49.9 49.9 49.9 '9.9 49.9 49.9 49.9

GE IZOGCI 50.5 51.5 51.6 51.7 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9

GE 100001 55.3 56.8 56.9 57.0 57.2 57. 2 57.2 57.2 57.2 57.2 57.2 57.2 57.2 57.2 57.2 51.2

GE 90GO0 56.0 51.5 57.6 57.7 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 5A.0 58.0

GE 80CJ 59.2 61.3 61.4 61.5 61.8 61.8 61.8 61.8 61.8 61.8 l;.4 01.8 61.8 61.8 61.8 61.8

GE TOUCI 60.6 62.1 6Z.8 62.9 63.2 63.2 63.2 62.2 53.2 63.2 63.2 63.2 63.2 63.2 63.2 6 3.2

GE 60001 61.7 64.0 64.1 64.2 64.5 64.5 64.5 64.5 64.5 64.5 633.S 64.5 64.5 64.5 64.5 64.5

GE 50001 66.0 68.8 69.1 69.2 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8

GE *5009 69.1 72.8 73.5 73.7 74.3 74.3 14.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3

GE 40001 74.2 78.0 79.2 79.7 80.6 80.8 81.0 81.0 81.0 81.1 61.1 81.1 81.1 R1.1 81.1 Fi.

GE 35.0 77.7 81.9 83.3 83.9 85.2 85.3 85.6 85.6 85.7 85.9 8.9 '5.9 85.9 '5.9 85.9 85.9GE 30001 80.5 85.4 86.9 87.4 88.7 88.9 89.4 89.69.5 9.7 89.7 89.7 8.7 89.7 89.1 89.1

GE 2502 81.0 86.1 87.8 88.4 89.8 90.0 90.6 90.8 90.9 9.j 91.2 92.1 91.1 91.1 91.1 91.1GE 20001 81.2 88.9 88.8 89.4 90.8 91.1 92.0 92.3 92.5 92.7 92.8 92.8 ?2. 92.8 92.8 92.8

GE 18001 81.2 86.9 88.8 '9.4 90.8 91.1 92.0 9Z.3 92.5 92.7 92.8 92.8 92.8 92.8 92.8 92.8GE IOC1 81.2 86.9 88.8 89.4 90.9 91.2 92.4 92.7 93.1 93.5 93.9 93.9 93.9 93.9 93.9 93.9

GE 1200 81.2 86.9 88.8 89.6 91.1 91.4 92.8 93.1 93.9 94.3 94-6 94.6 94.6 94.6 94.6 94.6

GE I0OC1 81.3 81.2 89.4 90.1 91.7 92.0 93.5 94.0 94.7 95.3 95.R 95.8 95.9 96.0 96.1 96.1

GE 9001 81.3 a8.2 89.4 90.1 91.7 92.0 93.5 94.1 94.9 95.6 96.2 96.3 96.5 96.6 96.7 )6,7

GE 8001 '1.3 87.3 89.5 9D.4 92.2 92.5 94.0 94.6 95.5 96.3 97.1 97.3 97.4 97.5 97.6 97.6

GE 7OCI 81.3 87.3 89.5 90.5 92.3 92.6 94.1 94.7 95.6 96.5 97.2 97.5 9?.? 91.8 98.0 98.0

GE 6001 81.3 87.3 89.5 90.5 9Z.3 92.6 94.1 94.7 95.8 96.7 97.4 98.1 98.3 98.4 98.5 98.5

GE 50 81.3 87.3 89.5 90.5 92.3 92.6 94.1 94.7 95.9 96.8 97.5 98.2 98.6 98.8 98.9 98.9

GE 40C 81.3 81.3 89.5 90.5 92.3 92.6 94.1 94.7 96.0 96.9 91.7 98.4 98.8 99.2 99.4 99.4

GE 3001 81.3 87.3 89.5 90.5 92.3 92.6 94.1 94.7 96.0 97.1 90.0 98.6 99. 0 99.6 99.8 99.8

GE 2001 81.3 87.3 89.5 90.5 92.3 92.6 94.1 94.7 96.0 97.1 98.1 98.7 99.2 99.8 200.1 200.0GE 1001 '1.3 97.3 89.5 90.5 92.3 92.6 94.1 94.7 96.0 97.1 99.1 98.7 99.2 99.8 IC0.0 100.0

GE C1 81.3 81.3 89.5 90.5 92.3 92.6 94.1 94.1 96.0 97.1 98.1 98.7 99.2 99.8 100.0 100.0

............................................................................................................................................


0 L

2 GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILIIYUSAFETAC FROM HOURLY OSERVAIIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: MAR HOURSILSTI: 1800-2000

.......................................................................................................................... .................CEILNe VISIBILITY IN STATUTE MILES

IN I GE GE GE BE GE GE GE GE GE GE GE GE 4L GE GE GEFEtf I 10 6 5 9 3 2 1/2 2 1 112 1 1/4 1 1/4 b/B 112 5116 1/4 0

*.SA.4...i........................................................................................... ...................

f. s. , 1t 46 .2 46.3 e.3 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.1 46.7 46.7

+ St * 'I 4 H 5C.1 50.3 SO*3 50.6 50.6 SD.6 50.6 50.6 50.6 5n.6 5C.6 50.6 5C.6 50.6 S0.6Alt 93i ,I5.6 10.6 51.0 51.0 51.0 51.0 5.0 51.0 51.0 S1.0 51.0 51.0 51.0 51.0

... Sqo4ftu-5fs., 50.b 50.6 11.0 51.0 s1.0 51.0 51.0 S1.o 51.0 51.0 51.0 51.0 51.0 51.o3 be. s4t ' f' 51.2 51.4 51.4 11 .7 51.7 51.7 51.7 51.7 S1.7 51.7 51.7 51.7 51.7 51.? 51.7

' 1S IO, Jt2.2 52.4 92.4 82.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7

i7S-9 56.1 6.1 . 56.5 56.5 56.5 56.5 56.5 56.5 56.5 56.5 ,6.5 56.5 56.5• 11,001 * °'$6.6 56.8 56.8 $1.1 57.1 57.1 57.1 57.1 S7.1 57.1 57.1 57.1 57.! 57.1 57.1

"C. "1D V'eOl 568. 26CD 60.2 60.2 60.5 60.5 60.5 60.5 60.5 60.5 6n.5 60.5 60.5 60.5 60.5 60.54 , .lwaq4, 6!.1 63.4 63.4 63.8 63.3 63.8 63.8 63.8 63.8 63.8 63.8 63.8 63.8 61.8 63.8

A%.7 ' 51 . 4) 65.1 65.1 65.40 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4

"Oad . 69.9 70.3 ?0.3 70.8 70.8 70.8 73.8 70.8 70.6 70.8 0.6 10.6 10.8 10.8 10.8GE 50UC| 69.7 72.9 73.5 73.6 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2GE 40oa 72.7 76.6 77.8 78.2 79.1 79.1 79.4 79.4 79.4 79.5 79.6 79.7 79.7 79.7 79.7 79.7GE 35001 75.7 80.2 81.7 82.2 83.1 83.2 83.4 83.4 83.4 83.5 8T.? 83.8 83.8 83.8 83.8 83.8GE 30001 78.3 83.2 85.1 85.7 87.1 87.2 87.5 87.6 87.6 87.8 88.0 88.1 88.1 98.1 88.1 86.1

GE 250 79.0 84.0 86.0 86.8 88.4 88.7 89.2 89.5 89.5 89.7 89.9 90.0 90.0 90.0 90.0 90.0GE 2000i 79.1 84.7 86.9 87.6 89.8 90.1 90.6 91.2 91.3 91.6 91.8 91.9 91.9 91.9 91.9 91.9GE 1801C 79.1 85.1 87.2 88.0 90.1 90.4 91.0 91.6 91.7 92.0 92.3 92.4 92.4 92.4 92.4 92.4GE 15001 79.1 85.1 87.4 88.3 90.4 90.8 91.6 92.4 92.5 93.5 93.8 94.0 94.0 94.0 94.0 94.0GE 120CI 79.1 85.4 87.7 88.8 91.1 91.4 92.3 93.0 93.1 94.3 94.6 94.8 94.8 94.8 94.8 94.8

GE 1OOC 79.1 85.5 87.8 88.9 91.3 91.6 92.5 93.2 93.3 94.6 95.5 95.7 95.9 95.9 95.9 95.9GE 9001 79.2 85.6 88.0 89.0 91.4 91.7 92.7 93.5 93.7 94.9 95.8 96.0 96.2 96.3 96.3 96.3GE 8009 79.2 85.6 88.0 89.1 91.5 91.8 92.8 93.8 93.9 95.2 96.0 96.2 96.5 96.6 96.6 96.6GE 7DCI 79.2 85.6 88.1 89.2 91.8 92.2 93.2 94.2 94.4 95.7 96.6 96.8 97.0 97.1 97.1 97.1GE 60C1 79.2 85.6 88.1 89.2 91.8 92.2 93.2 94.4 94.8 96.1 97.1 97.4 97.6 97.7 97.7 97.7

GE 5oci 79.2 85.6 88.1 89.2 91.8 92.2 93.3 94.8 95.6 96.9 97.8 98.2 98.4 98.5 98.6 96.6GE NUll 79.2 85.6 88.1 89.2 91.8 92.3 93.4 94.9 95.7 97.0 94.0 98.3 98.5 98.9 99.0 99.0GE 300O 79.2 85.6 88.1 89.2 91.8 92.3 93.4 94.9 95.8 7.3 98.3 98.6 99.0 99.5 9q.? 99.8GE 20C 79.2 85.6 88.1 89.2 91.8 92.3 91.4 94.9 95.8 97.3 94.3 98.6 99.0 99.5 99.6 99.9GE 1003 79.2 85.6 88.1 89.2 91.8 92.3 93.4 94.9 95.8 97.3 98.3 98.6 99.0 99.5 99.8 100.0

GE Cl 79.2 85.6 88.1 89.2 91.8 92.3 93.4 94.9 95.8 97.3 98.1 98.6 99.0 99.5 99.8 100.0

..................................... ......................................................................................................


*

-)

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAlk MEATHER SERVICE/MAC

STATION NUMBER: 7.6225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-67

MONTH: MAP HOURS(LSTI: 2100-2300

CE ii. °''°''°146''°°VSIBiLXIY IN STATUTE MILES "'""

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE rE CEFEET I 1a 6 5 4 3 2 112 2 1 1/2 1 114 1 3/N 5/8 2/z 5/16 1/4 0

C NO CEZL 1 46.2 46.6 46.7 46.7 46.8 46.8 46.A 46.8 46.8 46.8 46.8 46.8 4b.8 46.8 46.8 46.8

GE 200001 48.7 49.0 49.1 '9.1 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2

GE 1OOC 48.8 47.1 49.2 49.2 49.4 49.4 49.q 49.4 49.4 49.4 49.4 49.4 49.N 49.4 49.4 49.4

GE 160001 48.8 49.1 49.2 49.2 49.4 49.4 49.4 49.4 49.4 49.4 49.q 49.4 49.4 49.4 49.4 49.4

GE 140001 49.1 %9.8 49.9 49.9 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0GE 12000! 50.5 51.2 51.3 51.3 S1.4 51.4 51.4 51.4 51. 51.4 51.4 51.4 51.4 51.4 51.4 51.4

GE IO00C 53.7 54.3 54.4 54.4 54.5 54.S 54.5 54.5 54.5 54.5 54.5 54.5 54.5 94.5 54.5 54.5GE 9000! 54.0 54.6 54.7 54.7 54.8 54.8 54.8 54.8 54.8 54.8 64.4 54.8 54.8 54.8 54.8 54.6GE 800CI 57.7 58.4 58.5 58.5 68.6 58.6 56.6 58.6 58.6 58.6 59.6 58.6 586 58.6 58.6 56.6

GE 7000! 60.0 6C.9 61.0 61.0 61.1 61.1 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2

GE 60001 61.7 62.7 62.8 62.8 62.9 62.9 63.0 63.0 63.0 63.0 63.n 61.0 61.0 63.0 63.0 63.0

GE 5000C 66.3 61.7 68.4 66.4 68.6 68.6 68.8 68.8 68.8 68.8 68.8 68.8 68.8 68.8 68.8 68.8

GE 45001 68.9 71.2 72.2 72.2 72.6 72.6 72.8 72.8 12.8 72.8 72.6 72.6 72.8 72.6 72.8 72.8

6E 4ouct 71.8 74.0 76.2 76.6 77.3 77.3 77.5 17.6 17.5 77.6 77.5 77.5 77.5 77.5 77.5

77.5

6E 3500I 74.4 78.2 79.5 80.0 31.1 81.1 81.4 81.4 61.4 01.4 61.4 81.4 81.4 81.4 82.4 81.4

GE 3010! 76.2 8C.6 82.2 82.9 64.4 84.4 64.8 84.8 84.8 84.8 84.8 64.8 8.8 84.8 84.8 84.8

GE 2510! 77.4 82.2 64.0 84.6 86.5 86.6 87.3 87.3 67.3 87.3 87.3 67.3 87.3 87.3 87.3 87.3O GE 200Ci 78.1 83.0 85.2 86.0 8.0 88.2 89.4 89.7 69.) 89.9 89.9 89.9 89.9 89.9 89.9 89.9

GE 1800! 78.2 83.2 85.5 06.3 88.3 88.5 89.7 93.i 90.1 00.3 9n.3 90.3 90.3 9Q.3 90.3 90.3GE ISoC! 79.2 83.2 85.8 86.7 88.9 89.2 90.8 91.6 91.6 92.4 92.4 92.4 92.4 92.4 92.4 92.4

GE 1200! 78.2 83.2 85.8 86.8 89.2 89.6 91.5 92.4 92.4 93.3 93.3 93.4 93.4 93.4 93.4 93.4

GE 10001 78.3 83.3 86.5 87.5 90.8 91.1 93.1 94.0 94.1 p5.2 95.2 95.5 95.6 95.6 95.6 95.6

GE 9001 78.5 81.5 86.8 87.8 91.1 91.5 93.5 94.4 94.5 95.6 95.6 95.9 96.0 96.0 96.0 96.0

GE 80CI 78.5 83.5 86.8 87.8 91.2 91.6 93.8 94.8 94.9 06.0 96.1 96.5 96.7 96.7 96.7 ;6.7GE 7TOO 74.5 83.5 66.8 87.8 91.2 91.6 93.9 95.1 95.3 96.3 96.5 96.9 97.1 97.1 97.1 97.1

GE 6001 78.5 8!.5 86.8 87.8 91.2 91.6 93.9 95.2 95.6 96.7 96.8 97.2 97.4 97.4 97.4 97.4

GE Sac! 76.5 83.5 86.8 87.8 91.2 91.6 94.0 95.4 95.8 96.9 97.0 97.6 97.8 97.8 97.8 97.8GE 40c! 78.5 83.5 66.8 87.8 91.3 91.9 94.3 95.7 96.3 97.5 97.7 98.4 98.6 98.6 98.6 98.6

GE 30CI 78.5 83.5 86.8 87.8 91.3 91.9 94.3 95.7 96.7 97.8 98.2 98.9 99.2 99.5 90.5 99.5

GE 2001 78.5 83.5 86.8 87.8 91.3 91.9 94.4 95.8 96.9 98.1 98.4 99.1 99.5 99.? 99.7 99.7

GE 1UC 78.5 83.5 86.8 87.8 91.3 91.9 94.4 95.8 96.9 98.1 98.4 99.1 99.5 99.7 99.7 100.0

GE 01 78.5 83.5 86.8 87.8 91.3 91.9 94.4 95.8 96.9 98.1 98.4 99.1 99.5 99.7 99.7 100.0


A

GLLBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VIS18ILITYUSAFEIAC FROM HOURLY OBSERVATION5

AIR wEATHER SERVICE/MAC

STAlION NUMBER: 726225 STATION NAME: PLATTSBURGH AF NY PERIOD OF RECORD: 78-87

MONTH: MAR HOURS(LS). ALL

CEILING VISIBIL17Y IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 1/4 5/8 112 5/16 114 0

NO CEIL 1 43.1 43.7 43.8 43.9 44.1 44.1 44.1 44.1 44.1 44.1 44.1 44.1 44.1 44.1 44. 44.1

GE 200001 46. 47.1 7.2 47.3 47.5 47.5 47.5 47.5 47.5 47.5 47.5 47.5 47.5 41.5 47.5 47.5

r, GE 180001 46.9 47.6 47.7 47.8 48.0 48.0 48.0 48.0 48.0 48.0 40.0 48.0 48.0 48.0 4e.1 48.1

GE 1600C 1 46.9 47.6 47.7 47.8 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1

GE 140001 47.7 4A.4 48.5 48.6 48.8 48.8 48.9 48.9 48.9 48.9 48.9 48.9 48.9 48.9 48.9 48.9

GE 120001 49.1 49.9 50.0 51.1 50.3 50.3 50.3 50.3 50.3 50.4 50.4 50.4 50.4 50.4 50.4 s C.4

GE 100001 52.7 53.7 53.8 53.9 54.1 54.1 54.1 54.1 54.1 54.2 54.2 54.2 54.2 54.2 54.2 54.2

GE 90C0 53.2 54.1 54.3 54.4 54.6 54.6 54.6 54.6 5.6 54.7 54.7 54.7 54.7 54.7 54.7 54.7

GE 80001 56.q 57.6 57.7 57.8 58.1 58.1 58.1 58.1 58.1 58.1 5S.1 58.1 58.1 58.1 58.2 58.2

GE 70001 58.6 55.9 60.1 60.2 60.4 60.4 6n.5 60.5 60.5 60.5 60.5 60.5 60.5 60.6 60.6 60.6GE 60001 60.5 62.0 62.3 62.4 62.7 62.7 62.8 62.8 62.8 62.8 62.9 62.9 62.9 62.9 62.9 62.9

GE 500C1 64.8 66.9 67.5 67.7 68.1 b8.1 68.2 68.3 68.3 68.3 68.3 68.3 68.3 68.3 6P.4 68.4

C GE 45001 67.9 7E.6 71.4 11.6 7Z.2 72.2 72.3 72.4 72.4 72.5 72.5 72.5 72.5 72.5 72.5 72.5

GE 400C1 71.2 74.4 75.6 76.0 76.8 76.9 77.1 77.2 77.2 77.1 77.3 77.4 77.4 77.4 77.$ 77.4

GE SO I 74.3 78.0 7q.4 79.9 80.9 81.0 81.3 81- 81.9 81.5 81.5 81.6 81.6 81.6 81.6 81.6

GE 3000| 76.7 81.3 83.1 83.7 85.1 85.2 85.6 85.8 85.9 86.0 86.0 86.0 86.1 86.1 86.1 86.1

GE 25001 77.8 82.6 84.8 85.5 87.0 87.2 87.8 88.1 88.2 88.4 88.4 88.5 88.5 e8.5 88.5 88.5GE 200CI 78.3 83.9 86.3 81.1 88.9 89.2 90.0 90.6 90.6 90.9 91.1 91.1 91.1 91.1 91.2 91.2

GE 180C 78.4 84.1 86.5 97.3 89.1 89.4 90.2 9U.8 90.9 91.1 91.3 91.3 91.4 91.4 91.4 91.4

GE ISOCI 78.6 84.4 87.0 88.0 90.0 90.4 91.5 92.2 92.4 93.0 93.2 93.2 93.3 93.3 93.3 93.3

GE 121UC 78.6 84.6 87.2 88.3 90.5 90.9 92.1 92.8 93.1 93.8 94.1 94.1 94.1 94.? 94.2 94.2

GE 10001 78.7 84.8 87.7 88.8 91.2 91.7 93.1 93.9 94.2 95.1 95.5 95.6 95.8 95.8 95.9 95.9

GE 9001 78.8 84.9 87.8 88.9 91.4 91.8 93.3 94.3 94.6 95.4 95.9 96.1 96.3 96.3 96.4 96.4

GE 80ci 78.8 84.9 87.8 89.1 91.6 92.0 93.6 94.7 95.0 95.9 96.5 96.6 96.9 96.9 97.0 97.0

GE 701 78.8 84.9 87.8 89.1 91.7 92.1 93.8 94.9 95.2 Q6.1 96.7 96.9 97.2 97.3 97.3 97.4

GE 6001 78.8 84.9 87.9 89.2 91.8 92.2 93.9 95.1 95.5 96.5 97.0 97.3 97.6 97.7 97.8 97.8

GE 5ou 78.8 84.9 87.9 89.3 91.9 92.4 94.1 95.5 96.0 96.9 97.5 97.8 98.2 98.3 9A.4 98.4

GE 4GC1 78.8 84.9 87.9 89.3 92.0 92.5 94.3 95.6 96.2 97.3 98.9 98.3 98.7 98.9 99.0 99.0

GE 30CI 78.8 89.9 87.9 89.3 92.0 92.5 94.4 95.8 96.4 Q7.6 98.3 98.7 99.1 99.4 99.5 99.6

GE 2U01 78.8 84.9 87.9 89.3 92.0 92.5 94.4 95.8 S6.5 47.7 98.5 98.9 99.4 99.7 99.8 99.9

GE 100M 78.8 84.9 87.9 89.3 92.0 92.5 94.4 95.9 96.5 97.7 9F.5 98.9 99.4 99.7 99.8 100.0

GE C1 78.8 84.9 87.9 89.3 92.0 92.5 94.4 95.R 96.5 97.7 98.5 98.9 99.4 99.7 99.8 100.0

TOIA NUMBER OF OBSERVATIONS: 7440

A,,

-• . -

r

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING 8rRSuS VISIBILITY

USAFETAC F6OM

HOURLY OBSERVA7IONS

AIR WEA1HER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB N1 PERIGO OF RECORD: 78-B7MONTH: APP HOURS(LSII: 0009-0200

.............................................i~ ~e o te** ot

. ............ ........ ......... e ... *.e.*...............

CEILING VISIBILITY IN SIATUTE MILES

3N I CE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 4 qq.9 44.9 45.0 45.0 45.0 4S5.0 45.0 95.0 45.0 45.1 45.2 4.2 45.2 45.2 4.2 45.2

GE 20000 49.? 49.2 49.3 49.3 49.3 49.3 49.3 49.3 N9.3 49.4 4.6 49.6 49.6 49.6 49.6 49.6

GE 180001 49.8 49.8 49.9 49.9 49.9 49.9 49.9 49.9 49.9 SO.0 50.1 SO.1 50.1 50.1 50.1 50.1GE 160OCI 49.8 49.8 q9.9 49.9 49.9 49.9 49.9 49.9 49.9 50.0 50.1 50.1 50.1 50.1 50.1 50.1GE 14OOCI 49.8 '4.8 99.9 49.9 49.9 49.9 49.9 49.9 49.9 50.0 50.1 50.1 5.3 50O.1 50.1 50.1GE 1200C 51.2 S1.

3 51.4 51.4 51.4 5!.4 51.4 51.4 51.9 51.6 51.7 51.7 51.7 51.7 51.7 51.7

GE 100001 55.2 55.4 55.6 55.6 55.6 !.6 S5.6 55.6 5.6 55.1 55.6 55.6 00.1 !N.a 50.1 55.8

GE 90001 55.2 55.4 55.6 SS.6 55.6 55. SS.6 55.6 55.6 55.7 5S.8 55.8 SS.8 55.8 55.8 55.8GE GOC; 57.3 51.8 57.9 57.9 57.9 57.9 57.9 57.9 57.9 58.0 5A.1 58.1 58.1 58.1 59.1 58.1

GE 700C1 59.3 59.8 59.9 59.9 59.9 59.9 59.9 59.9 59.9 60.0 60.1 6C.1 60.1 6C.1 60.1 601GE 6000 62.9 63.8 64.0 64.2 6412 64.2 64.2 64.2 64.2 64.3 64.4 64.4 64.4 64.4 64.4 64 .4

GE 50C9 67.o 6e.4 65.8 69.0 69.0 69.0 69.0 69.0 69.0 69.1 69.2 69.2 69.2 69.2 69.2 69.2

6E '4500 75.0 76.7 77.0 77.2 77.2 77.2 77.2 77.2 77.2 77.3 77.4 77.4 77.4 77.4 77.4 77.4GE '4COCt 77.2 78.9 79.3 79.9 79.9 79.9 79.9 79.9 79.9 80.0 80.1 8c.1 80.1 po.1 80.1 8L.1

GE 3500c 79.9 82.2 83.0 83.6 83.6 83.6 83.6 83.6 83.6 83.7 83.8 83.8 83.9 83.8 83.8 81.8GE 30001 83.3 86.0 86.8 87.3 87.8 87.8 87.8 87-9 87.9 88.0 89.1 88.1 88.1 88.1 88.1 88.1

GE 25001 84.7 87.6 88.3 88.9 89.6 89.6 89.6 89.7 89.7 89.8 89.9 89.9 89.9 89.9 89.9 89.9

GE 200cl 85.1 88.4 89.7 QO.4 91.2 91.3 91.4 91.6 91.6 91.7 91.8 91.8 91.8 91.8 93.8 91.8GE 1BUOi 85.4 89.z 90.8 91.6 92.6 92.7 92.9 93.1 91.1 93.2 93.3 93.3 93.3 93.3 93.3 93.3

GE 150c 85.7 89.7 91.2 92.0 93.1 93.3 93.6 93.9 93.9 q4.0 94.1 94.1 94.1 94.1 94.1 94.1GE 120CI 85.8 85.8 91.7 92.4 93.6 93.9 94.1 94.4 94.4 94.7 94.8 94.8 94.8 94.8 94.8 99.8

GE 10009 85.8 89.9 91.9 92.8 9'4.0 94.3 94.8 95.3 95.1 '45.6 95.7 96.7 95.7 95.1 95.1 95.1GE 9Ocj 85.8 89.9 91.9 92.8 94.0 94.3 94.8 95.1 95.1 95.6 9S.7 95.7 95.7 9S.7 95.7 95.7

GE 8001 85.8 89.9 91.9 92.8 94.0 94.3 94.8 95.2 95.2 9S.7 95.8 9S.8 95.8 95.8 9S.8 95.8GE

70c 85.8 89.9 91.9 93.0 94.z 94.6 95.1 95.6 95.6 9S.0 96.1 96.1 96.3 96.2 96.2 96.2

GE 60C 85.8 89.9 91.9 93.0 94.4 94.8 95.3 95.9 95.9 96.3 96.6 96.6 96.6 96.1 9'.7 96.1

GE 500| 85.8 89.9 91.9 93.0 94.7 95.U 95.8 96.3 96.6 Q7°f 97.3 97.3 97.4 Q7.6 97.6 97.6GE 4OC9 85.8 89.9 91.9 93.0 94.7 95.0 9S.9 9b.6 96.8 97.2 97.6 97.6 97.8 97.9 97.9 97.9GE 3009 85.8 89.9 91.9 93.0 94.7 9S.0 96.1 97.1 97.3 97.8 98.1 98.3 98.? 08.8 99.8 98.8

GE 7009 85.8 89.9 91.9 93.0 94.8 95.1 96.2 97.2 97.4 98.1 98.8 98.9 99.3 99.4 90.6 99.9

GE 1001 85.8 89.9 93.9 93. 94.8 95.1 96.2 97.2 97.4 98.. 98.9 99.0 99.4 99.6 99.7 10O.0

GE CI 85.8 89.9 91.9 93.0 94.8 95.1 96.2 97.2 97.4 98.2 98.9 99.0 99.4 99.6 99.7 100.0

01AL NLMBER OF OBSERVATIONS: 900

N

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: APR HOURS(LSTI: 0300-0500

. LIG................................................... .......... '. N'. ;. ;... '... ; ...... ".......................................

CE 1L ING VISIBILITY IN STATUTE MILESIN I CE GE GE GE GE GE G GE GE GE GE GF GE GE GE GE

FEET I 10 6 5 4 3 2 112 2 1 112 1 1/4 1 1/4 5/8 1/2 S/16 1/4 0

NO CEIL 1 42.4 43.1 43.1 43.1 43.1 43.1 43.1 43.1 43.1 43.2 43.2 43.2 43.2 43.3 43. 43.3

GE 20000C 46.1 46.9 46.9 46.9 47.0 47.0 47.0 47.0 47.0 47.1 47.1 47.1 47.1 47.2 47.2 47.2GE 1A0OC 1 46.7 43.4 47.4 47.4 47.6 47.6 47.6 47.6 47.6 47.7 47.7 47.7 47.7 4T.8 47.8 47 .8GE 160001 46.7 47,4 47.4 47.4 47.6 47.6 47.6 47.b 47.6 47.7 47.7 47.7 47.7 47.8 47.8 N7 .8GE I4C0C1 47.3 46A.1 48.1 48.1 48.2 48.2 48.2 48.2 48.2 48.3 48.3 4 . 'IS. 3 4-.4 48.4 48.4GE 12001 48.3 q9.1 49.1 49.1 49.2 49.2 49.2 49.2 49.2 49.3 49.3 49. 3 49.3 49;.4 49.4 49.4

GE 1000c1 53.0 53.9 53.9 54.0 54.1 54.1 54.1 54.1 54.1 54.2 54.2 54.2 54.2 54.3 54.3 54.3C GE 90001 53.3 54.2 54.2 54.3 54.4 54.4 54.4 54.4 54.4 54.6 54.6 54.6 54.6 54.7 54.7 54.7

GE 80001 56.1 57.1 57.1 57.2 57.3 57.3 57.3 57.3 57.3 51.4 57.4 57.4 57.c: 57-6 57.6 57.6GE 700C1 58.8 59.8 59.9 60.0 60.2 60.2 60.2 60.2 60.2 60.3 60.3 bc.3 b.3 b.4 60.4 60.4GE 600C) 61.2 62.3 62.7 62.8 63.1 63.1 63.1 63.1 63,1 63.2 63.2 63.2 63.2 63.3 63.3 63.3

GE 50001 64.6 66.4 66.9 67.0 67.6 67.6 67.6 67.6 67.6 67.7 67.7 67.7 67.7 67.A 67.8 67.8GE 45001 71.0 73.6 74.1 74.4 75.0 75.0 75.1 75.1 75.1 75.2 75. 2 75.2 75.2 75.3 75.3 75.3GE 4001 74.7 77.3 ?8.0 78.3 79.0 79.0 79.1 79.1 79.1 79.2 79.2 79.2 79.2 79.3 79.3 79.3GE 35001 76.9 8B.3 81.1 81.4 82.1 82.1 82.2 82.2 82.2 82.3 82.3 82.3 82.3 82.4 82.4 82.4GE 30001 80.6 84.2 85.0 85.4 86.2 86.2 86.3 86.4 86.4 86.6 86.6 86.6 86.6 96.7 86.7 86.7

GE 25001 82.2 86.3 87.2 87.8 88.9 88.9 99.3 89.2 89.2 89.3 8q.3 89.3 89.3 89.4 89.4 89.4GE 20011 83-4 87.7 89.0 89.7 91.0 91.0 91.4 91.8 91 .8 92.0 92.0 92.0 92.0

92,1 92.1 92.1

GE 1011 83.4 87.7 89.0 89.8 91.1 91.1 91.6 92.2 92.2 92.4 92.4 92.4 92.4 92.6 92.6 92.6GE 35001 83.8 8e.2 89.7 90.6 91 .0 92.0 92.4 93.3 93.3 93.6 93.6 93.6 93.9 93.9 93.9 93.9GE 12001 83.9 88.4 90.1 91.0 92.7 92.6 93.2 94-

2 94.2 94.4 94.4 94.4 94.7 94.8 94.8 94.8

GE Ic0I 84.6 89.2 90.9 92.0 93.8 94.0 94.7 95.9 95.9 96.2 96.7 96.2 96.4 96.6 96.6 96.6GE 90C 84.6 89.3 91.0 92.1 93.9 94.1 94.9 96.1 96.1 96.4 96.4 96.4 96.7 96.8 96.8 96.8GE 80c 894.6 84.3 91.2 92.3 94.1 94.3 9S.1 96.3 96.3 96.7 96.0 96.9 97.1 97.2 97.2 97.2GE 7ClI s4.6 89.3 91.2 92.3 94.1 94.3 9S.1 96.4 96.4 96.8 97.0 97.1 97.3 97.4 97.4 97.4GE 60C 84.6 89.3 91.2 92.3 94.3 94.6 95.3 96.8 96.8 97.1 97.4 97.6 97.8 97.9 97.9 97.9

GE 5Ol 84.6 81.3 91.3 92.4 94.4 95.1 95.9 97.3 97.4 97 . 98.1 98.2 98.4 98.6 98.6 98.b

GE 4U-1 84.6 8s.3 91.3 92.4 94.6 95.2 96.1 97.7 97.8 98.1 98.4 98.6 98.8 98.9 98.9 98.9GE 30CI 84.6 89.3 91.3 92.4 94.7 95.3 96.2 97.9 99.0 98.3 9q.7 98.8 99.0 99.1 99.2 Q9.2GE 2001 84.6 89.3 91.3 9Z.4 94.7 95.3 96.3 98.0 V 8 98.4 99.8 98.9 99.1 99.2 99.4 99.6GE lOCI 84.6 8-.4 91.4 92.6 94.8 95.4 N .6 98.2 98.3 98.7 99.0 99.1 99.4 99.6 99.9 10C.0

GE 01 84.6 89.4 91.4 92.6 94.8 95.4 96.6 98.2 98.3 08.7 99.0 99.1 99.4 99.6 99.9 100.0


GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY ObSERVATIONSAlt wEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87MONTH: APR HOURSILSTI: OtCO-OOO

CEILING0 VISIBILITY IN STATUTE MILES

I N I GE CE GE .E GE GE GE GE GE GE CE GE GE GE GE cFEET I 1" 6 5 4 3 2 112 2 1 112 1 1/4 1 X/4 5/8 112 f/It 1/4 0.. . . . . . . . . . . . . . . . . . . . . . .................. .°.°..°....°.°°............°.............. . . °. .. ... °°.

NO CEIL 1 39.7 3s.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 30.3 3v.4

GE 20OU0I 47.2 '43.4 43.4 43.4 43.4 43.4 43.4 43.4 4 .4 43.4 43.4 43.4 43.4 43.4 43.4 4 3.6GE 18Oo01 3.7 43.9 '43.9 43.9 43.9 43.9 43.9 43.9 43.9 43.9 43.9 43.9 43.9 43.9 43.9 44.0

GE 1600CI 43.8 44.0 44.D 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.15E 140001 44.6 44.8 43.8 44.8 44.8 44.8 44.8 44.7 44.8 44.8 44.P 44.8 44.s 44.a 4".B 44.9GE 1200CI 45.9 4b.1 46-1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 4b.2

GE I100001 50.0 r3.7 50.7 50.8 50.8 S0.A 50.8 50. 50.8 50.8 50.8 50.8 50.8 50.8 5C.8 50.9GE 90001 50.1 5C.8 50.8 50.9 50.9 50.9 50.9 50.9 50.9 5C.9 50.9 5C.9 50.9 SO.9 50.9 tl.o

GE 80001 55.1 S.4 56.4 56.7 57.0

57.0 57.0 57.0 57.0 91.0 57.0 57.0 57.7 57.0 57.0 57.1

GE 7rUol 58.7 6C.1 60.1 60.3 60.7 60.7 63.7 6j.7 60.7 60.7 60.7 6-.7 60.7 6L.7 bo.,; E.86 60UC1 61.4 63.1 63.2 63.4 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9 50.9 63.9 64.C

3E 50001 65.8 68.0 68.6 68.8 69.3 69.3 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 61.4 69.6GE 45 C 1 72.2 74.8 75.4 75.8 76.4 76.4 76.9 77.0 77.0 71.0 77.0 71.0 71.0 77.0 77.0 77.1

GE 400C 75.9 70.9 79.8 80.4 81.7 81.7 82.3 82.4 82.4 82.4 87.4 82.4 87.4 F2.4 8.4 92.6GE 35C 1 79.6 81.7 82.7 83.3 84.8 84.8 95.4 85.6 85.6 85.6 85.6 85.6 85.6 85.6 M%6 P5.7

GE 30UCJ 81.9 85.1 86.1 86.8 88.3 88.3 89.0 89.1 89.1 89.1 84.1 84.1 89.1 P9.1 8).1 89.2

GE 2900! 63.7 87.1 88.1 88.8 90.7 90.7 91.3 91.4 91.6 91.6 91.6 91.6 91.6 91.6 91.6 91.1

6F 200CI 85.3 99.3 90.3 91.0 93.1 93.1 93.9 94.0 94.1 94.2 94 .2 94.3 94.3 94.3 94.3 94.4GE I1UCI 8.3 89.3 90.3 91.0 93.2 93 ; 94.0 94.1 94.2 "4.3 94.7 94.4 94.4 94.4 94.4 94.6GE ISUI 85.6 89.6 90.8 91.4 93.8 4 1 94.7 94.8 94.9 q. 9.2 95.3 95.3 Q5.3 93.3 5.4

30 120C1 85.8 9c.D 91.2 "1.9 94.3 94. 95.4 95.6 95.7 5.8 96.2 96.) 96.1 96.1 96.1 qb.2

GE 10001 86.3 91.1 92.3 93.2 95.9 95.9 97.0 97.1 97.2 07.4 97. 4 97.9 . 7.9 9'.9 9b.0GE 9UC1 86.3 91.l 92.4 q3.3 96.1 14.. 97.3 93.4 97.6 )7.8 9O.. 98.2 98.2 98.2 9.7 98.3GE 80C1 86.1 91.2 92.7 93.7 96.6 96.6 97.9 98.0 98.] Q8.3 94.7 98.8 98.8 98.8 9R.4 96.9GE ?Gcl b6.1 91.2 92.7 93.7 96.b 96.6 97.8 98.0 98.1 98.3 99.7 98.8 98.8 q8.9 98.9 49.c

E 6001 86.5 91.2 92.7 93.4 96.7 96.7 97.9 9.1 98.3 98.6 9p.q 99.? 99.3 "9.1 9?.1 9.2

GE Sod 86.3 91.2 92.7 93.4 96.7 96.7 98.7 97'.2 49.4 "8.7 9-.0 99.1 99.1 99.3 99.3 09.4,[ 41 86.3 91.2 92.7 93.0 96.7 96. 94.0 94.2 98.4 "8.7 9 .0 99.1 99.1 Q9.3 49.3 p5.4GE 3C 1 86.1 91.2 97.7 93.8 56.? 96.7 9.u 98.4 987 98.9 9".? 99.3 9?.3 99.6 99.6 997

GE ?GC0 86.3 q1.2 97.7 93.8 St.7 96.7 98., 99.4 98.7 98.9 9".4 99.6 99.6 99.9 99.9 1I'll.E Itol 6. 1 9l.2 92.7 93.8 96.1 96.7 98.0 98.4 98.7 98.9 90.4 99.6 99.6 99.9 99.9 13.0D

GE CI b6.3 91.2 9?.7 93.g8 96.7 l6.7 98.0 9d.4 94.1 Qm8,9 9-.4 "9.6 99.6 99.9 9Q.9 13ct.c

. M....r............ ,... .o ,..... ............. ...... °,.. o,,,................... ....... ..... ,. . .... ,........°,,

TOTAL NUMALR OF GASFRVATIINSz 9ou

..... *-wJ . .. im m mmdadg AuIL--'

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FRCQUENCY OF OCCUR4ENCE OF Cr!LING VERUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PEPIOD OF RECORD: 78-87MONTH: APR HOURSILSI: 0900-1100

IN I GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFLET i 0 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 41.0 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1

GE 2000C 1 44.1 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 4.2 44.2 44.2 44.2 44.2 44.2 44.2

GE l8s0oC 44.7 44.8 44.8 q.8 44.8 44.8 44.8 44.8 44.8 44.8 44.8 44.8 44.8 44.8 44.8 44.8GE 160C 44.7 44.8 44.8 44.8 q4.8 44.8 44.8 44.8 44.8 44.8 44.4 44.8 44.8 44.8 44.8 44.eGE 1400CI 45.3 45.4 45.4 45.4 45.4 45.4 45.4 45.4 45.4 15.4 45.4 45.4 45.4 45.4 45.4 45.4GE 12001 47.0 47.3 47.3 47.3 47.3 47.3 q7.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3

GE 100001 51.1 51.6 51.6 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 1.7 51.7 51.7

GE 90001 51.4 51.9 51.9 52.0 52.0 52.0 52.0 5Z.0 52.0 52.0 52.0 52.0 52.0 52.0 52.0 52.0GE 800C1 56.3 57.0 57.2 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3GE 700C 1 58.7 59.8 60.2 60.3 60.3 60.3 60.3 60.3 60.3 60.3 60.3 6C.3 60.3 60.3 60.3 40.3GE 6001 60.1 61.6 62.2 62.3 62.3 62.3 62.3 62.4 62.4 62.4 62.4 62.4 62.4 62.1. 62.4 62.4

GE 500CI 63.2 65.3 66.0 66.2 66.2 66.2 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 C6.3GE 450C1 68.4 71.1 71.8 72.0 72.0 72.0 72.0 72.1 72.1 72.1 72.1 72.1 72.1 72.1 72.1 72.1GE 400CI 73.9 76-9 77.8 78.2 78.3 78.3 78.6 78.8 78.8 78.8 78.8 78.8 78.8 78.8 7P.8 76.8GE 35001 79.4 83.1 84.0 84.6 85.0 85.0 85.4 85.7 85.7 85.7 85.7 85.7 85.7 85.7 85.7 85.7GE 3rOCI 81.3 85.3 86.6 87.3 88.1 88.1 88.7 88.9 89.1 84.1 89.1 89.1 89.1 89.1 89.1 P9,1

GE 2500 83.1 87.6 89.0 89.8 40.6 90.6 91.2 91.4 91.8 91.8 91.8 91.8 91.8 1.8 9I.8 41.8GE 200CI 85.3 89.9 91.6 92.3 93.3 93.4 94.3 94.6 94.9 94.9 94.9 94.9 94.9 94.9 94.9 94.9GE 18001 85.6

9C.2 91.9 92.7 93.8 93.9 94.9 95.1 95.4 95.4 95.4 95.4 95.4 95.4 95.4 95.4

GE 15001 85.9 90.8 92.7 93.4 94.8 94.9 95.9 96.2 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6GE 12UCI 86.1 91.3 93.2 94.1 95.6 95.7 96.8 97.1 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.6

GE 1ooCt 86.1 91.6 93.4 94.7 96.1 96.2 97.3 91.8 98.2 o8.2 98.2 98.2 98.2 48.2 98.2 98.2

GE 9GI 86.1 91.6 93.7 95.0 96.4 96.6 97.7 98.! 98.6 98.6 98.6 98.6 98.6 9.6 99.6 98.6GE 80CI 86.1 91.6 93.7 95.0 96.4 96.7 97.9 98.: 98.8 9q.8 94.8 98.8 98.8 98.8 94.8 9b.8

GE 70CI 86.1 91.6 93.8 95.2 96.7 96.9 98.1 98.6 99.0 99.0 94.0 99.0 99.0 94.2 99.2 '9.2

GE 60CI 86.1 91.6 93.8 95.2 96.7 96.9 98.2 98.7 99.1 99.1 99.1 99.1 99.1 99.3 99.3 9.3

GE BeI1 86.1 91.6 93.8 95.2 96.7 96.9 94.4 98.9 99.3 99.3 99.3 99.3 97.3 49.6 99.6 99.6GE 40CI 86.1 91.6 93.8 95.2 96.7 96.9 98.4 99.0 99.4 q4.4 99.6 99.6 99.6 99.8 100.0 1C.0GE 30CI 86.1 91.6 93.8 95.2 96.7 96.9 98.4 99.0 99.4 94.4 94.6 99.6 99.6 99.8 107.C 10.0

GE 21C0 86.1 91.6 93.8 45.2 96.7 96.9 98.4 99.0 99.4 99.4 99.6 99.6 99.6 49.8 10?.0 10G.0GE 100

I 86.1 41.6 93.8 45.2 96.7 96.9 98.4 99.0 99.4 99.4 90.6 99.6 9.6 99.8 103.0 IO.G

GE cl 86.1 91.6 93.8 45.2 96.7 96.9 98.4 99.0 99.4 q9.4 94.6 49.6 99.6 99.8 13. ICC.0

TOIAL NUMREP OF 08SFRVATIONS: 900

GLEBAL CLIMA1OLOGY 9RANCH PERCENTAGE FREQUENCY OF OCCUR-ENCE OF CEILING VERSUS VISIBILITY

USAFETAC FNOM HOURLY OBsERVATIONSAl1 WEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFB NY PERIO OF PECORO: 78-87MONTH: APR HOURSILSTI: 1ZO0-1400

CEILING -ViSIPILITY IN S1AITET MILES

IN GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 4 3 2 112 2 1 112 1 114 1 1/M 5/8 112 '/16 1/4 0

NO CEIL 1 40.7 41.3 41.3 41.3 41.3 '41.3 41 .3 41.3 41.3 41.3 41.3 41.3 41.3 41.3 41.3 41.3

GE 200110! 45.3 46.0 46.0 46.0 4b.D 46.0 46.0 46.0 46.0 46.0 46.0 46.0 46.0 46.0 46.0 46.0

GE 180oC1 45.7 46.3 46.3 46.3 46.3 46.3 46.3 4b.3 46.3 46.3 46.3 46.3 46.3 46.3 46.3 46.3GE 160001 4S.7 46.3 46.3 45.3 46.3 46.3 46.3 46.3 46.3 46.3 46.3 4b.3 46.3 46.3 46.3 4b.3

GE 140001 46.7 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3GE 120U0U 47.8 48.4 48.4 48.4 48.q 48.4 48.4 48.4 48.4 48.4 44.4 48.4 48.4 48.4 4F.4 46.4

GE 10000t 50.9 51.6 51.6 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7GE 90001 51.7 52.3 52.3 52.4 52.4 52.4 52.4 52.4 52.4 5.4 52.4 52.4 52.4 S2.4 52.4 52.4GE 8000! 55.9 56.7 56.7 56.8 S?.

0 57.0 57.0 57.0 57.0 57.0 57.0 5 1.O 57.0 57.0 57.0 57.0

GE 700C1 57.1 58.1 58.3 58.4 58.7 58.7 58.7 58.1 58.7 58.7 58.7 58.7 58.7 58.7 59.7 58.7GE 600CI 58.2 55.2 59.6 59.7 59.9 5

9.9

59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9

GE 500CI 6.1 63.2 63.9 64.0 64.2 64.2 64.2 64.2 64.3 64.3 64.3 64.3 b4.3 64.3 64.3 f,4.3GE 4500 67.9 69.0 70.0 70.2 70.7 70.7 70.7 70.7 70.8 70.8 7n.8 70.8 70.8 70.8 70.8 70 .8GE 4ooOI 1416 76.1 77.3 77.6 78.1 78.1 78.1 78.1 78.2 78.2 7R.2 78.2 78.2 78.2 78.2 78.2GE 3500c 80.6 82.7 84. :1 4. 85.0 85.0 85.2 85.2 85.3 45.3 85.3 85.3 85.3 85.3 8.3 85.3GE 3000! 83.7 86.6 88.2 88.7 89.6 89.6 89.9 89.9 90.0 90.1 90.1 90, 90.1 90.1 90.1 90.1

3E 2500! 85.4 89.0 90.9 91.3 92.4 92.4 93.1 93.2 93.3 93.6 93.6 93.6 93.6 93.6 97.6 93.6GE 200C 1 86.6 9C.2 92.2 92.9 94.0 94.2 95.1 95.2 95.3 q5.6 95.1 95.6 95.6 95.6 95.6 95.6GE 1800! 86.6

9[.

3 92.4 93.1 94.2 94.4 95.3 95.6 95.7 95.9 95.9 95.9 95.9 95.9 95.9 95.9

GE 150C 87.0 91.U 93.3 94.2 95.4 95.7 96.6 96.8 96.9 97.1 97.1 97.1 97.1 97.1 97.1 97.1

GE 12I0! 87.0 91.3 93.8 94.7 95.9 96.1 97.1 97.3 97.4 97.7 97.7 97.7 97.7 97.7 97.7 97.7

GE 1000! 87.0 91.7 94.1 95.0 96.2 96.4 97.4 97.7 97.9 Q8.1 91.1 98.1 98.1 '8.1 94.1 98.1GE 900 87.0 91.7 94.1 95.0 96.3 96.6 97.6 97.9 98.1 98.3 911.3 98.3 98.3 98.3 94.3 96.3

GE 8uc 87.0 91.7 94.1 5.G 96.3 96.6 97.6 97.9 98.1 98.3 9::3 98.3 98.3 '4.4 98.4 98.4GE

7u ! 37.0 91.7 9.1 95.0 96.7 96.6 977 98.0 98.2 840 9, 4 98.4 98.6 '48.7 987 96.7

GE 6001 87.0 91.7 94.1 lq5.0 96.7 96.6 97.8 98.1 98.3 98.t, 94.6 98.6 98.7 98.8 94.8 96.8

I 50C 87. 91.7 94.1 95.1 96.7 96.9 98.3 98.7 98.9 09.1 99.1 99.1 99.2 99.3 99.4 99.4GE 40C 87.C 91.7 94.1 55.1 96.7 96.9 9R.3 98.7 99.0 99.3 90.4 99.4 99.6 99. 9Q.8 99.8GE 30C 87.0 91.7 94.1 95.1 96.7 96.9 98.3 98.8 99.1 09.4 90.6 99.6 99.7 99.8 99.9 99.9

CE 200! 87.0 91.7 94.1 95.1 96.7 96.9 98.3 98.8 99.1 99.6 99.7 99.7 99.8 99.9 100.0 100.0GE 100! 87.0 9.7 94.1 45.1 96.7 96.9 98.3 98.8 99.1 99.6 99.7 99.7 99.8 99.9 100.0 10.0

GE [ 87. , 91.7 94.| qS 1 96.7 96.9 98 .3 98.8 99.1 99.6 99.7 99.7 99.8 99.9 130.0 100.0

IOIL NUMBER OF QRSERVATIO&S: 930

GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FEOM HOURLY 08SERVA7IONS

Alf WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFE NY PERIOD OF RECORD: 78-87MONTH: APR HOURSILST) 1500-1700

CE ILING VIRILITY I'. 51ATUIF MILES

IN I GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE CE

FLET I 10 b 5 4 3 2 1/2 2 1 112 1 1 /4 1 314 5/8 112 /Ib 1/4 0

.........................................................................................................................................

NO CEIL I %V.9 41.2 41.2 911.2 41.2 41.2 41.2 41.2 41.2 41.2 41.2 41.2 41.2 '1.2 41.2 41.2

GE 200001 46.6 96.9 96.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 '6.9

GE 18001 47.2 47.6 47.6 47.6 47.6 '7.6 47.6 '7.6 47.6 47.6 47.6 47.6 4.76 47.6 47.6 '.1.6

GE 160001 47.3 47.7 47.7 47.7 47.7 41.7 47.7 47.7 4'7.7 47.7 47.7 47.7 47.7 47.7 47.7 4'7.7GE 14(OGOl 48.2 48.6 48.6 '8.6 48.6 '8.6 48.6 '8.6 48.6 48.6 48.6 48.6 48.6 48.6 48.6 '6.6

GE IZOOC 1 48.9 '; .2 49 9.2 9.2 9.2 '.92 4 9.2 9.2 9.2 49 9. 4 9.2 '9.2 '.2 '9.2 '.9.2

GE 100001 $2.7 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1

GE 90UCI 53.2 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7

GE 8U0 0 56.6 57.2 57.3 57.3 57.3 57. 3 57.3 57.3 57.3 57.3 57.3 57 - 3 57.3 57.3 57.3 57.3;E 70001 58.8 5s.6 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59. P 59.8 59.8 59,8

GE 600CI 62.0 63.0 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2

GE SO0I 67.7 68.8 69.1 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2GE 450CI 73.2 74.7 75.1 75.4 75.4 75.'4 75.4 75.' 75.4 75.4 75.' 75.4 75.4 75.' 75.4 75.4GE 40001 78.6 80.4 81.1 81.7 82.0 82.0 82.0 82.3 82.3 82.3 82.3 82.3 82.3 12.3 82.3 92.3GE 3n01 83.0 q5.3 86.2 86.8 87.1 87.1 87.1 87.4 87.4 87.4 87.4 87.4 87.4 87.'. 87.4 P7.4GE 3300C 85.7 85.0 90.0 90.6 91.1 91.1 91.1 91.6 91.7 91.8 91.8 91.8 91.8 91.8 91.8 91.8

GE 250C1 86.7 9C.6 91.9 92.8 93.4 93.' 93.6 94.0 94.1 94.2 94.2 9'.2 94.2 94.2 9'.2 94.2GE 20001 87.4 91.7 93.1 94.2 95.1 95.2 95.4 95.9 96.0 96.1 96.1 96.1 96.1 ';6.1 96.1 96.1GE 18001 87.7 91.9 91.3 94.4 95.3 95.4 95.7 96.1 96.2 96.3 96. 96.3 96.3 96.3 96.3 96.3GE 150C1 87.7 92.2 93.7 94.8 95.8 95.9 96.1 96.6 96.7 96.8 96.9 96.9 96.9 96.9 96.9 96.9GE 12001 87.8 92.8 94.2 95.3 96.4 96.6 97.1 97.6 97.7 57.8 97.9 97.9 97.9 97.9 97.9 97.9

GE 10OCI 87.8 92.8 94.2 95.3 96.6 96.7 97.3 97.8 98.2 98.3 9.4 98.4 98.'4 98.4 98.' 98.'

GE 9001 87.8 92.9 94.4 95.6 96.8 97.U 97.7 98.1 98.6 98.7 98.8 9d.8 98.8 08.8 9Q.8 98.8GE 8001 87.8 92.9 9'. 95.6 96.8 97.0 97.7 98.5 98.6 98.7 98.8 98.8 98.8 98.8 98.8 96.8GE 70I 87.9 92.9 9'. 95.6 96.8 97.0 97.8 98.2 98.7 98.8 98.9 98.9 98.9 98.9 99.9 98.9GE 6001 87.8 93.0 94.6 95.7 96.9 97.1 98.0 98.4 98.9 q99.0 9q.1 99.1 99.1 99.1 99.1 99.1

GE Sod 87.8 93.0 94.6 q5.7 96.9 97.2 98.3 98.8 99.2 99.3 99.4 99.4 99.4 99.4 99.' 99.4

GE 4.00 87.8 93.U 99.6 95.7 96.9 97.3 98.4 98.9 99.3 99.4 99.8 99.8 99.9 09.9 99.9 99.9GE 3001 87.8 93.0 94.6 95.7 96.9 97.3 98,6 99.U 99.4 99.6 99.9 99.9 100.0 100.0 100.0 100.0GE 2012 81.8 93.

O 94.6 95.7 96.9 97.3 98.6 99.0 99. 99

6 99.9 99.9 100.9 100.0 100.0 100.0

GE 1C0 87.8 93.0 94.6 95.7 96.9 97.3 98.6 gi.G 99.4 99.6 99.9 99.9 100.0 100.0 100.0 IC.O

GE C1 87.8 93.0 946 95.7 96.9 97.3 98.6 99.0 9q.' 09.6 99.q 99.9 100 170.0 I03.0 170.0

TOTAL NUMBER OF O9SERVAyI06S: 900

AAR

GLCBAL CLIMATOLOGY BRANCH PERCENTAGr FREUENCY OF OCCURRENCE OF CFILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OCSCRVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PE'IOD OF RECORD: 78-87

MONTH: APR HOURSILSI): 1890-2000

IN I G1 EE GE GE GE GE GE GE GE GE GE (E GE GE GE EFEET In 6 5 6 3 2 1/2 2 1 112 1 1/4 1 1/4 5/8 112 5/16 1/4 0

NO CEIL I 42.8 63.0 43.0 63.0 43.0 63.0 .3.0 63.0 63.0 63.0 3.0 N3.0 63.0 43.0 43.0 43.0

GE 2000CI 48.2 46.4 68.6 68.6 68.6 68.6 68.6 68.6 48.6 68.6 NB.4 NB.4 68.6 68.4 4A.6 6b.6GE 180001 68.6 68.7 68.7 68.7 q8.7 48.7 NB.? 68.7 68.7 8.7 68.7 98.7 68.7 68.7 8.7 48.7GE 16no01 68.6 88.7 88.7 8.7 68.7 A. 7 68.7 68.7 68.7 68.7 NB.7 4B .7 4B.7 48.7 68.7 48.7GE 1400DI 49.2 l9.6 89.6 69.6 69.4 9. 6 9.4 69.4 69.4 49.6 69.4 69.6 49.4 49.4 49. 49 .4GE 1200C 51.3 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 S1.6 51.6 51.6

GE 100001 56.6 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56-8 56.8 56.8 56.8 56.8GE 9000I 57.1 57.3 57.3 57.3 51.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3GE 83001 59.6 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9

GE 7'F0C1 61.1 61.4 61.6 61.4 61.4 61.4 61.4 61.4 61.4 61.6 61.6 61.6 b1.b 61.6 61.6 61.6GE 60001 66.0 64.6 64.7 66.7 b.7 b4.7 64.7 66.7 64.7 64.8 64.8 66.8 64.8 64.8 64.8 64.8

GE 500C1 70.6 71.9 72.1 72.1 72.1 72.1 7Z.I 7Z. 72. 72.2 72.2 72.2 72.2 72.2 72.2 72.2GE S10I 76.0 76.1 76.3 76.4 76.6 76.6 76.6 76.7 76.7 76.R 7', 7F.e .8 1 76.8 76.8 76.8GE 400C 77.0 79.8 80.6 80.6 81.1 81.1 81.2 81.7 81.8 81.9 81.9 81.9 81.9 81.9 81.9 81.9

GE 35UC 79.7 8i.6 83.2 83.6 84.2 84.2 84.3 84.8 84.9 85.0 85.0 85.0 85.0 85.0 85.0 85.0

GE 30001 82.9 86.1 87.3 87.7 88.9 88.9 89.1 89.7 89.8 89.9 89.9 89.9 89.9 89.9 89.9 89.9

GE ZSO 86.! 88.3 89.7 90.2 91.6 91.7 91.9 92.4 92.7 92.9 92.9 92.9 92.9 92.9 92.9 92.9GE 20OCI 85.0 89.6 91.2 91.9 93.4 93.6 94.4 95.0 95.3 95.7 9 ,.7 95.7 95.7 95.7 95.7 95.7

GE 18001 85.0 88.6 91.2 91.9 93.4 93.6 96.q 95.0 95.3 95.7 95.7 95.7 95.7 95.7 95.7 95.7QE 15001 85.0 89.7 91.4 92.1 94.0 94.1 95.2 95.9 96.2 q6.6 96.6 96.6 96.6 96.6 96.6 96.6GE 12001 85.3 9r.1 91.9 92.7 94.7 94.8 95.9 96.6 96.9 97.2 97.2 97.2 97.2 ?.2 97.2 97.2

GE 10o0 85.4 90.2 92.0 93.0 95.0 95.2 96.6 97.2 97.6 97.9 98.0 98.0 98.1 98.0 98.0 98.0GE 9001 85.4 9C.2 92.0 93.0 95.0 95.2 96.4 91.2 97.6 97.9 98.0 98.0 e.1 98.0 99.0 98.0

GE BUll 85.4 90.2 92.0 93.0 95.2 95.4 96.7 97.4 98.1 98.4 98.6 98.6 98.6 98.6 98.6 98.6GE 7UI 85.4 9C.2 92.0 93.0 95.2 95.6 96.7 97.6 98.2 98.6 98.7 98.7 98.7 98.7 9P.7 98.7GE bo1 85.6 9C.2 92.0 93.0 95.2 95.4 96.7 97.6 98.7 98.6 98.7 98.7 98.7 98.7 98.7 98.7

GE 500! 85.6 9C.2 92.0 93.0 95.3 95.6 96.8 97.7 98.3 98.7 98.9 99.0 99.0 99.0 99.0 99.0

GE 6001 85.6 9C.2 92.1 93.0 95.3 95.6 96.8 97.7 98.3 98.7 99.7 99.3 99.3 99.3 99.3 99.3GE 3001 85.6 90.2 92.0 93. 0 95.4 95.7 96.9 98.0 98.7 99.0 99.6 99.7 99.7 99.7 99.8 99.8GJE 20cI 85.4 9C.2 92.0 93.G 95.4 95.7 96.9 98.0 98.7 99.0 99.7 99.8 99.8 99.8 100.0 100.0GE 10CI 85.4 9C.2 92.0 93.0 95.4 95.7 96.9 98.0 98.7 99.( 9Q.7 99.8 99.8 99.8 130.0 100.0

GE [I 85.6 90.2 92.0 93.0 95.4 95.7 96.9 98.0 98.7 99.0 9Q.7 99.8 99.8 99.8 103.0 lO.0



AIR 8EAIHER SERVICk/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: 78-87

MONTH: APR NOURSILST): 2100-2300

CE IL.IN. VISI.ILITY IN STATUTE MILES

IN I GE CE GE GE GE GE GE GE GE GE GE Gt GE GE GE GEFEET I 10 b 5 4 3 2 1/12 2 1 112 1 14 1 3/4 5/8 1/2 5/16 114 0

NO CEIL I 46.4 46.4 46.4 46.4 4b.4 4.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4

GE 200001 50.1 50.1 50.1 50.1 50.1 50.1 50.1 5UI1 50.1 s0.1 50.1 51.1 5.1 50.1 50.1 5U.1GE 18001c 50.4 50.4 50.4 50.4 50.4 50.4 50.4 50.4 50.4 50.. 5ry .4 50.4 50.4 50.4 50.4 so.4GE iOOCI 50.4

5C.4 50.4 50.4 5o.4 50.4 50.4 50.4 50.4 50.4 5 .4 5.4 50.4 5C.4 50.4 5u .4

GE 140001 50.7 5C.7 50.7 50.7 5U.7 50.7 50.7 50.7 50.7 50.7 5c.7 50.7 50.7 51.7 59.7 5C.?GE 12oo01 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8

GE 1000Ci 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 5.7 55.7 55.7 55.7 55.7 55.1 55.7 C5.7GE 900C| 56.9 56.9 56.9 5b.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9GE 80OCI 59.1 5f.1 59.1 59.j 59.1 59.1 59.1 59.1 59.1 59.1 50.1 59.1 59.1 59.1 59.1 59.1GE 70001 60.8 60.8 60.8 60.8 60.8 6c.8 60.8 60.8 60.8 60.8 60.8 60.8 60.A 0.8 60.8 60.8GE 600C| 65.2 65.4 65.6 65.6 65.6 65.6 65.6 f5.6 65.6 65. 6 65.6 65.6 65.6 65.6 65.6 65.6

GE 50001 70.0 70.7 71.0 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1GE 450C1 75.2 77.4 78.2 78.3 78.6 78.6 78.6 78.7 78.7 78.7 74.7 78.7 7A.? 78.7 7.7 78.7GE 4nQC1 78.8 81.1 82.1 82.3 83.0 83.0 83.1 83.2 83.2 A3.2 83.2 83.2 83.2 83.2 83.2 83.2GE SOCI 81.4 84.0 85.0 85.3 86.0 86.1 86.3 86.4 86.4 86.4 86.4 86.4 86.4 86.4 86.4 86.4GE 300CI 84.0 86.6 87.6 87.9 89.0 89.1 89.3 89.4 89.4 89.4 89.4 89.4 89.4 89.4 89.4 89.4

GE 2SUCI 84.9 88.0 89.1 89.4 90.8 90.9 91.2 91.3 91.3 91.3 91.3 91.3 91.3 QI.3 91.3 91.3

GE 20001 85.7 89.0 90.4 91.0 92.7 93.0 93.6 93.7 93.7 93.7 93.7 93.7 93.7 93.7 93.7 43.7GE 1SGoC 85.9 85.3 90.9 91.6 93.3 93.7 94.2 74-3 94.3 94.3 94.3 94.3 94.3 94.3 94.3 94.3GC ISUCI 85.9 89.3 90.9 91.6 93.6 93.9 94.7 94.8 94.9 94.9

94.

9 99.9 94.9 94.9 94.9 94.9

GE 120CI 86.1 89.6 -1-1 91.8 94.1 94.6 95.3 95.4 95.6 95.6 95.6 95.6 95.6 95.6 95.6 95.6

GE 17001 86.2 89.9 91.8 92.6 45.1 95.6 96.9 96.6 96.7 96.7 96.7 -6.7 96.8 96.8 96.8 96.8GE loci 86.2 89.9 91.8 92.6 95.2 95.7 96.6 96.9 97.0 97.0 97.0 57. 97.1 97.1 97.1 97.1GE 80C1 86.2 85.9 91.9 92.8 95.7 96.1 97.0 97.3 97.6 97.6 97.6 97-6 97.7 97.7 97.7 97.7GE 70CI 86.2 90.0 97.1 93.0 95.9 96.3 97.2 97.6 97.8 917.8 97.8 91.8 97.9 97.9 97.9 97.9GE 60C1 86.2 9C.0 92.1 93.0 95.9 96.3 97.2 97.6 97.8 97.8 97.8 97.8 98.0 98.0 98,0 98.0

GE 50C 86.2 9C.0 92.1 93.0 96.0 96.4 97.3 97.7 97.9 98.0 90.0 90 98.Z 98.2 98.2 98.2GE 4001 86.2 9C.1 92.2 93.1 96.1 96.6 97.6 97.9 98.1 98.4 98.6 9d.7 98.9 08.9 98.9 98.9GE TOOl 86.2 9C.1 92.2 93.1 96.2 96.7 97.8 98.1 98.3 98.7 99.c 99.1 99.6 99.6 99.6 99.6bE 2GC 86.3 9C.2 92.3 93.2 96.3 96.8 97.9 94.2 98.4 98.9 99.2 9 '.3 99.9 09.9 99.9 99.9GE IoI 86.3 9C.2 92.3 93.2 96.3 96.8 97.9 98.2 98.4 98.9 99.2 91.3 99.9 99.9 100.0 100.0

GE C1 86.3 9C.2 92.3 93.2 96.3 96.8 97.9 98.2 98.4 98.9 9-.? 993 99.9 99.9 100.0 100.0

............................................................................................................................

TOTAL NUMBER OF OPSERVATIONS: 900

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FR[QUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFEAC FROM HOURLY OBSERVATIONS

A16 WEATHER SERVICE/MAC


MONTH: APR HOURS(LSTI. ALL

CC ILING "''''"VSIRILITV 14 STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GF GE GEFL ET I I0 6 5 4 3 2 1/2 2 1 1/2 1 1/4 i 314 5/8 1/2 /16 1/4 0... ,................°.................°............°........................ .. ,........................

NO CElL 42.3 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6

GE 20000 46.6 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 47.0 47.0 47.0 47.0 47.0 47.0 47.0GE 180001 47.1 41.4 47.4 47.4 47.4 47.4 47.4 4 P.4 47.4 47.4 47.4 47.q V7.4 47.4 47.4 47.5GE 16003C 47.1 41.4 7.4 47.4 47.4 47.4 47.4 47.4 47.4 47.4 47.5 VT.5 47.5 41.5 47. 5 4T°5GE 1400C1 47.7 48.0 480 48.0 48.0 48.0 48.0 48.0 48.0 48.1 44.1 48.1 48.1 48.1 48.1 46.1

GE 120001 49.0 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.5

GE 10000C 53.1 53.6 53.6 53.7 53.7 53.7 53.7 53.7 53.7 53.7 5T.7 53-7 53.7 53.7 53.7 53.7GE 900C 53-6 54.1 54.1 54.1 54.2 54.2 54.2 4.2 54.2 S4.2 54.2 S4.2 54.2 4. 2 54.2 54 .2GE 80001 57.0 57.7 57.7 57.8 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9GE 70U01 59.2 59.9 60.1 60.1 60.2 60.2 60.2 60.2 60.2 60.3 60. 3 60.3 60.3 60.3 60.3 60.3

C GE 60U03 61.9 62.9 63." 63.2 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.5

6E 50001 66.4 67.8 68.3 68.4 68.6 68.6 68.6 63.6 68.6 68.7 64.7 68.7 68.7 68.7 64.7 68.7GE 450C1 72.1 74.2 74.8 75.0 75.2 75.2 75.3 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.5GE 400CI 76.3 78.7 79.5 79.9 80.4 80.4 80.5 81.7 80.7 9D.8 8n.8 80.8 80.8 40.8 83.8 80.8GE 350CI 79.9 82.7 83.7 84.1 84.7 84.7 85.0 85.1 85.1 85.2 85.2 85.2 85.2 85.2 85.2 85.2

GE 300CI 82.9 86.1 87.2 87.7 88.6 88.6 88.9 89.1 89.2 89.3 89.3 89.3 89.3 89.3 89.3 89.3

GE 250C 84.3 88.1 89.3 89.9 91.0 91.0 91.4 91.6 91.7 91.8 91.8 91.8 91.8 91.8 91.8 91.8GE 200CJ 85.5 89.5 90.9 91.7 93.0 93.1 93.7 94.0 94.1 94.2 94.2 94.3 94.3 94.3 94.3 94.3GE 18UCI 85.6 89.7 91.2 92.0 93.4 93.5 94.1 94.4 94.6 94.7 94.7 94.7 94.7 94.8 94.8 94.8GE 15001 85.8 9C.1 91.7 92.5 94.1 94.2 94.9 95.3 95.4 95.6 95.6 95.6 95.7 95.7 95.7 95.7GE 12001 86.0 90.4 92.2 93.0 94.7 94.8 95.6 96.0 96.2 96.3 96.4 96.4 96.4 96.4 96.4 96.5

GE 10001 86.2 9L.8 92.6 93.6 95.3 95.5 96.4 96.9 97.1 97.3 97.4 97.4 97.4 97.5 97.5 97.5GE 91O 86.2 90.8 92.7 93.7 95.5 95.7 96.6 97.1 97.3 97.5 97.6 97.6 97.7 97.7 97.7 97.7GE 400l 86.2 9C.8 92.7 93.8 95.6 95.9 96.8 97.3 97.6 97.8 97.9 97.9 98.0 98,0 99.0 98.0GE 7001 86.2 9C.8 92.8 93.8 95.7 96.0 96.9 97.5 97.8 08.0 98,1 98.1 9S.2 98.2 98.2 98.3GE 6001 86.2 9C.9 92.8 93.9 95.8 96.0 97.1 97.6 97.9 98.1 9R.3 98.3 9R.4 98.4 9R.4 98.5

,E 5001 86.2 9C.9 92.8 93.9 95.9 96.2 97.4 97.9 98.3 98.5 94.7 911.7 98.8 98.9 98.9 98.9GE 4001 86.2 9C.9 92.8 93.9 95.9 96.3 97.4 98.1 98.4 98.7 99.9 90.0 99.1 99.2 99.3 99.3GE 30C3 86.2 9E.9 92.8 93.9 96.0 96.3 97.5 98.3 9A.6 08.9 0. 7 99.3 99.4 99.5 99.6 99.6

GE 20C3 86.2 90.9 92.8 93.9 96.0 96.3 97.6 98.3 98.7 9Q.0 9Q.4 94.4 99.6 99.7 99. 8 99.9GE 1001 86.2 90.9 92.8 93.9 96.0 96.3 97.6 9d.4 98.7 99.0 99.4 99.5 99.7 99.8 99.9 300.0

GE CI 86.2 9L.9 92.8 93.9 96.0 96.3 97.6 98.4 98.7 09.0 90.4 99.5 99.7 99.8 99.9 100.0

TOTAL NUMBER OF OBSFRVATIONS: 72U0

AW _

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMAFR: 726225 STATION NAME: PLATISRUpGH AF8 Ny PERIOD OF RECORD: 78-87MONTH: MAY HOURSILSTI= 0000-0200

CE IL.ING VISIRILITY IN 5TATUIE MiLES

IN I GE CE GE GE GE GE GE GE GE GE GE ur GE GE GL GLFEET I 10 6 5 4 3 2 12 2 1 1/2 1 114 1 3/4 5/8 112 !'16 1/4 0

........................................................................................................................

NO CEIL | 50.3 SC.5 50.5 50.5 51.0 51.0 51.0 51.1 51.1 51.2 61.2 51.2 51.4 51.5 51.8 51.8

GE 200001 51.8 52.0 52.0 52.0 52.5 52.5 52.5 52.6 52.6 52.7 52.7 52.7 52.9 53.0 53.3 53.3GE .80001 52.5 52.7 52.7 52.7 53.1 53.1 53.1 53.2 53.2 53.3 53.3 53.3 53.5 53.7 54.O 54.0GE 160001 52.5 52.7 52.7 52.7 53.1 53.1 53.1 53.2 53.2 53.3 53.3 53.3 53.5 53.7 54.

0 54.0GE 140001 52.9 53.1 53.1 53.1 53-5 53.5 53.7 54.0 54.0 54.1 54.1 54.1 54.3 54.4 54.7 54.7GE 1200CI 53.9 54.1 54.1 54.1 54.5 54.5 54.6 54.9 54.9 55.1 55.1 55.1 55.3 55.4 55.7 55.7

GE 1000CI 58.1 58.5 58.5 58.5 58.9 59.1 59.2 59.7 59.7 59.8 59.8 59.8 60.0 61.1 60.4 60.4GE 90O01 58.3 59.0 59.0 59.0 59.5 59.7 59.8 60.2 bO.Z 60.3 60.3 6G.3 60.5 6 1 .b 61.0 61.0GE 80OCI 63.5 64.7 64.7 64.7 65.3 65.5 65.6 66.1 66.2 66.3 66.3 66.3 66.6 66.7 67.0 67.0G 700 I 66.7 67.8 67.8 67.8 68.4 68.6 68.7 69.2 69.4 69.5 69.5 69.5 69.7 69.8 70.1 7.1GE 60001 70.6 71.8 72.U 72.5 73.0 73.2 73.1 74.2 74,3 74.4 74.4 74.4 74.6 74.7 75.1 75.1

GE 500CI 75.6 77.0 77.2 77.6 78.2 78.4 78.6 79.5 79.6 79.7 79.7 79.7 79.9 8c.0 80.3 80.3GE 45001 79.5 81.4 82.2 82.6 83.1 83.3 83.5 84.4 84.5 84.6 84.6 84.6 84.8 84.9 85.3 85.3GE 40U01 81.4 84.4 86.0 86.6 87.3 87.6 87.8 88.7 88.8 88.9 89.0 89.0 89.2 89.5 89.8 P9.8GE 35001 82.3 85.5 87.4 88.1 88.8 89.1 89.4 90.2 90.3 90.4 90.5 90.5 90.8 91.0 91.3 91.3GE 30001 83.9 87.6 89.7 90.5 91.5 91.8 92.0 92.9 93.0 93.1 93.2 93.

2 93.4 93.7 94.0 94.0

GE 25001 84.1 88.2 90.6 91.5 92.5 92.8 93.0 93.9 94.0 94.1 94.2 94.2 94.4 94.6 94.9 94.9GE 2000 84.2 88.4 90.9 91.7 92-7 93.0 93.2 94.1 94.2 94.3 94.4 94.4 94.6 q4.8 95.2 95.2GE 18001 84.2 8.5 91.0 91.8 92.8 93.1 93.3 94.

2 94.t 44.4 94.5 94.5 94.7 94.9 95.3 95.3GE 15101 84.2 8e.5 91.1 91.9 92.9 93.2 93.4 94.3 94.4 94.5 94.6 94.6 94.8 95.1 95.4 95.4

GE 12001 84.2 88.5 91.2 92.0 93.1 93.4 93.9 94.7 94.8 94.9 95.1 95.1 95.3 95.5 95.8 95.8

GE I301 84.2 88.6 91.4 92.3 93.5 94.0 94.4 95.3 95.4 95.5 95.7 95.7 95.9 96.1 96.5 96.5GE 9001 84.2 88.7 91.5 92.4 93.7 94.1 94.5 95.5 95.6 95.7 9".9 95.9 96.1 96.3 96.7 96.7GE 8001 84.5 89.0 91.8 92.7 94.0 94.4 94.8 95.8 95.9 96.0 96.2 96.2 96.5 96.7 q'7.0 97.0GE 7uol 84.5 89.1 91.9 92.8 94.1 94.5 94.9 96.0 96.1 96.2 96.5 96.5 96.7 96,9 97.2 97.2GE 6001 84.5 89.2 92.0 93.3 94.6 95.1 95.7 90.8 96.9 97.0 97.2 97.2 97.4 97.6 99.0 98.0

GE 50CI 84.5 89.2 92.0 93.3 94.6 95.1 95.9 97.1 97.2 97.3 97.5 97.5 97.7 92.0 98.3 98.3GE 4001 84.5 89.2 92.0 93.3 94.6 95.1 96.1 97.5 97.7

97.8 98.2 98.2 98.4 98.6 98.9 98.9GE 3001 84.5 89.2 92.0 93.3 94.8 95.3 96.6 98.2 98.4 98.5 98.9 98.9 99.1 99.4 99.7 99.7

GE 20CI 84.5 89.2 92.0 93.3 94.8 95.3 96.7 98.3 98.5 Q6.6 99.0 99.0 99.2 99.5 99.9 99.9GE 10c0 84.5 89.2 92.0 93.3 94.8 95.3 96.7 98.3 98.5 98.6 99.

0 99.0 99.2 99.5 100.0 100.0

GE Cl 84.5 89.2 92.0 93.3 94.8 95.3 96.7 98.3 98.5 96.6 99.0 99.0 99.2 99.5 100.0 130.0

........................................................................................................................


GLLBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSArETAC FROM HOUPLT OBSERVATIONS



MONTH: MAY HOURSILSTI: 0300.0500


IN i GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 iz 1 114 1 3/4 5/8 112 F/16 1/4 0

NO CEIL I 44.7 45.4 45.4 45.4 45.6 45.6 45.8 46.0 46.0 46.1 46.? 46.2 46.5 46.3 46.3 46.5

E 200001 48.0 48.6 48.6 48.6 46.8 48.8 49.0 49.2 49.2 49.4 49.6 49.6 49.7 49.7 49.7 49.8

GE 1800 48.4 49.0 49.0 49.0 49.2 49.2 49.5 49.7 49.7 49.8 50.0 50.0 50.1 50.1 50.1 50.2GE 160001 48.4 49.0 49.0 49.0 49.2 49.2 49.5 49.7 49.7 49.8 50.0 sc.0 50.1 51.1 50.1 50.Z

GE 140001 48.8 49.5 49.5 49.5 49.7 49.8 50.1 50.3 50.3 50.4 50.6 50.8 50.9 50.9 50.9 51.0GE 120001 49.8 SC.4 50.4 50.4 50.6 50.8 51.1 51.3 51.3 51.4 51.6 51.7 51.8 51.8 51.8 51.9

GE 1O000 53.7 54.3 54.3 54.3 54.5 54.6 54.9 55.2 55.2 55.3 55.5 55.6 55.7 55.7 55.7 S5.8

GE 90001 54.1 54.9 54.9 54.9 55.2 55.3 55.6 55.8 55.8 55.9 56.1 56.2 56.3 56.3 56.3 56.5GE 80001 S9.2 6C.4 60.5 60.5 60.8 60.9 61.2 61.5 61.5 61.8 62.0 62.2 62.3 62.3 62.3 62.4

GE 700CI 62.9 64.3 64.5 64.6 64.8 64.9 65.3 65.6 65.6 65.9 66.1 66.2 66.3 66.3 66.3 66.5

GE 60001 65.9 67.6 68.0 68.3 68.5 68.7 69.0 69.4 69.4 69.7 69.9 70.0 70.1 70.1 70.1 70.2

GE 50001 72.0 74.4 74.9 75.3 75.7 75.9 76.5 76.8 76.8 77.1 77.3 77.4 77.5 77.5 73.5 77.6

GE 45001 75.9 78.6 79.2 79.6 80.0 80.2 80.8 81.1 81.1 91.4 81.6 81.7 81.8 81.8 81.8 81.9GE '400 78 88 8 a 82.6 83.2 83.7 84.0 84.5 84.8 84.8 85.2 8!.4 95.5 85.6 85.6 85.7 85.8GE 35001 81.0 84.6 85. 86.1 86.

6 86.9 87.4 87.7 87.7 R8.1 8R.3 88.4 88.5 P8.5 8q.6 88.7

GE 30001 82.0 86.8 88.1 88.8 89.4 89.7 90.2 90.5 90.5 90.9 91.1 91.2 91.3 91.3 91.4 91.6

GE 25001 83.1 88.2 89.6 9o.3 91.0 91.3 91.8 92.2 92.2 92.5 92,7 92.8 92.9 92.9 93.0 93.2

GE Z00CI 83.4 88-6 90.1 51.0 91.6 91.9 92.6 92.9 93.0 93.3 93.5 93.7 93.8 93.8 93.9 94.1GE 18001 83.4 88.6 90.1 91.0 91.6 91.9 92.6 92.9 93.0 93.3 93.5 93.7 93.8 93.8 93.9 94.1

GE 1501C 83.4 88.6 90.1 91.1 91.8 92.2 92.9 93.2 93.3 93.7 93.9 94.0

94.1 94.1 94.2 94.4

GE 120CI r3.7 85.0 90.5 91.5 92.5 93.0 93.8 94.1 94.2 94.5 94.7 94.8 94.9 94.9 95.1 95.3

GE I00CI P3.7 89.4 90.9 92.0 93.1 93.8 94.5 95.2 95.3 95.6 95.8 95.9 96.0 96.0 96.1 96.3

GE 9U01 83.7 89.4 90.9 92.0 93.1 93.9 94.6 95.4 95.5 95.8 96.0 96.1 96.2 96.2 96.3 96.7

GE 800 83.8 89.6 91.Z 92.5 93.9 94.6 95.4 96.1 96.2 96.6 96.8 96.9 97.0 97.0 97.1 97.4

GE 7UCI 82.9 89.7 91.3 92.6 94.0 94.7 95.6 96.3 96.5 96.8 97.0 97.1 97.2 97.2 97.3 97.6

GE 6001 83.9 89.7 91.3 92.9 94.3 95.1 95.9 96.7 96.8 97.1 97.3 97.4 97.5 97.5 97.6 98.0

GE 500l 83.9 89.7 91.3 92.9 94.4 95.2 96.0 96.8 96.9 97.2 97.4 97.5 97.6 97.6 97.7 98.2

GE 4UCI 83.9 89.7 91.3 92.7 94.5 95.5 96.5 97.3 97.6 98.0 98.2 98.3 98.4 98.4 98.5 98.9

GE boul 83.9 89.7 91.3 92.9 94.5 95.5 96.6 97.7 98.2 98.7 9p.9 99.0 99.1 99.1 99.5 99.9GE 2001 83.9 89.7 91.3 92.9 94.5 95.5 96.6 97.7 98.2 98.8 99.0 99.1 99.2 99.2 99.6 100.0

GE locl 83.9 89.7 91.3 92.9 94.5 95.5 96.6 97.7 98.2 98.8 99.0 99.1 99.2 99.2 99.6 100.0

GE C1 83.9 89.7 91.3 92.9 94.5 95.5 96.6 97.7 98.2 98.8 99.0 99.1 99.2 99.2 99.6 100.0

TOTAL NUMBEP OF OBSERVATIONS: 030

GLUBAL CLMATIOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFE7AC FkOM HOURLY OBSERVATIONS

A1A WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME. PLATTSBURGH AFB NY PERI0 OF RECORD: 74-87MONTH: MAY HOURSILSI: 0600-0800

IN GE CE GE GE GE GE GE GE GE GE GE 6E GE GE GE GLFEET I10 6 5 4 3 2 112 2 1 1/2 1 114 I 314 5/8 112 5/16 114 0

NO CEIL 1 42.4 42.1 42.7 42.7 43.0 43.1 43.1 43.2 43.2 43.2 43.2 43.2 43.2 43.Z 43.2 43.2

GE 2OOUCI 46.7 47.1 47.2 47.2 417.5 47.6 47.6 47.7 47.7 47.8 47.8 47.8 47.8 47.8 49.0 48.0

GE 180001 47.3 47.7 47.8 47.8 48.2 48.3 48.3 48.5 48.5 48.6 4P.6 48.6 48.6 48.6 48.7 48.7GE 16000 47.3 47.7 47.8 47.8 48.2 48.3 48.3 48.5 48.5 48.6 48.6 48.6 48.6 48.6 48.7 48.7

GE IOOCI 48.2 48.7 48.8 48.8 49.1 49.2 49.2 49.5 49.5 49.6 49.8 49.8 49.8 49.9 50.0 50.0

GE 12OOCI 49.7 Sc.S 50.6 50.6 51.0 51.1 51.1 51.4 51.4 51.5 51.7 51.7 51.7 51.8 51.9 51.9

GE 100001 52.4 53.2 53.3 53.3 53.7 53.8 53.8 54.1 54.1 54.2 54.4 54.4 54.4 54.5 54.6 54.6

GE 90001 53.2 54.1 54.2 54.2 54.5 54.6 54.6 54.9 54.9 55.1 5.3 55.3 55.3 55.4 55.5 55.SGE 80CI 61.7 62.7 62.9 62.9 63.5 63.7 63.7 64.0 64.0 64.1 64.3 64.3 64.3 64.4 64.5 64.5GE ?0OCI 64.2 65.6 65.9 65.9 66.8 66.9 66.9 67.2 67.2 67.3 67.5 67.5 67.5 67.6 b7.7 67.

7GE 600EI 67.4 69.1 b9.5 69.5 70.4 70.5 70.5 70.9 70.9 71.0 71.2 71.2 71.2 71.3 71.4 71.4

GE 50OC| 71.4 73.3 73.7 73.9 74.9 75.1 75.1 75.6 75.6 75.7 75.9 75.9 75.9 76.0 76.1 76 .1

GE 45UOI 74.3 76.7 77.1 77.3 78.9 79.0 79.4 79.8 79.8 79.9 8n.| 80.2 0.1 F0.2 60.3 eC.3GE 4000 78.4 81.1 81.6 91.9 83.8 84.0 84.3 84.7 84.7 P4.9 85.2 85.2 85.2 15.3 85.4 85.4

GE 35001 80.9 83.8 84.5 84.9 86-8 87.0 87.3 88.0 88.0 88.2 88.4 88.4 88.4 8.5 89.6 86.6GE 300C1 83.2 86.6 87.4 88.0 90.0 90.2 90.S 91.2 91.2 q1.4 91.6 91.6 91.6 91.7 91.F 91.8

GE 250V| 84.0 87.3 83.4 98.9 91.1 91.4 91.7 92.4 92.4 92.6 92.8 92.8 92.8 92.9 93.0 93. 0GE 20001 84.5 88.0 89.1 89.9 97.2 92.5 93.1 93.8 93.8 94.0 94.2 94.2 9 94.3 94.4 94.4GE 19003 84.6 88.1 89.2 90.0 92.3 92.6 93.2 93.9 93.9 94.1 94.3 94.3 94.3 94.4 94.5 94.5GE 150CI 85.1 88.5 89.7 90.8 93.2 93.5 94.2 94.8 94.8 95.1 95.3 9S.3 95.3 95.4 95.5 Q5 .5GE 1200 85.2 88.6 89.8 90.9 93.4 93.9 94.7 95.5 95.5 95.7 9S.9 95.9 95.9 96.0 96.1 96.1

GE 100C1 85.2 S8.b 90.2 91.3 94.0 94.5 95.4 96.1 96.1 96.3 96.6 96.6 96.6 96.7 96.8 96.8GE 9ca0 85.2 88.7 90.3 91.4 94.2 94.7 95.6 96.3 96.3 0 6 .6 96.8 96.8 96.8 96.9 97.0 97.0

GE 80CI 85.2 8.1.9 90.5 91.b 94.5 95.1 95.9 96.9 96.9 97.1 97.3 97.3 97.3 97.4 97.5 97.5GE 70CI 85.2 811.9 90.5 91.6 94.5 95.1 95.9 96.9 96.9 97.1 97.3 97.3 97.3 97.4 97.5 97.5GE 600 85.2 88.9 90.5 91.7 94.6 95.2 96.1 97.2 97.2 97.4 97.6 97.6 97.6 07.7 97.8 97.8

GE SUCI 85.2 88.9 90.S 91.8 94.7 95.4 96.3 97.5 97.5 97.7 98.0 98.0 98.0 98.1 99.2 98.2

GE 40C1 85.2 88.9 90.5 91.8 94.7 95.4 96.3 97.7 97.8 98.2 9A.4 98.5 98.5 98.6 9A.7 98.7GE 3001 85.2 8.9 90.5 91.8 94.8 95.5 96.7 98.1 98.4 98.8 99.0 99.2 99.2 99.4 99.5 99.5

GE 2001 85.2 88.9 90.5 91.8 94.8 95.7 96.9 98.4 98.8 99.2 99.5 99.7 99.8 99.9 100.0 100.0GE 1001 85.2 98.9 90.5 91.8 94.8 95.7 96.9 9a.4 98.8 Q9.2 99.5 99.7 99.

8 99.9 100.0 IOL.O

GE 01 85.2 88.9 90.5 91.8 94.8 95.7 96.9 98.4 98.8 99.2 99.5 99.7 99.R 99.9 100.0 130.0

JOJAL NUMBER OF GB3ERVATIONS: 930......................-....................................................................


GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Of CEILING V!RSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVAITONSAlf, wEAHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFB NY PERIOD OF RCORD: 78-A7

VNTH: MAY HOURSILS7): 0900-1100

CE ILING VISIBILITY 16 STATUTE MILES ""

IN | GE GE GL GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I bt 5 4 6 3 2 112 2 1 1/2 1 1/6 1 3t4 5/8 112 51b 1/4 0... ... . . . . . . . . . . . . . . . . ...................-.-....° .o. , . .. .°. . . . .. ........... ... .. ... -.

NO CElL .. s.7 66.3 66.5 66. q.5 6 6.5 66.5 6 6.5 665 66.5 66.S 5 6 .5 66* 6.5 66.5 66.5 66 .S

GE 200U01 50.3 51.2 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 11.3 51.3 51.3GE 183U0

1 50.9 51.7 51.8 51.6 51.8 51.9 51.9 S1.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9

GE 1600C1 50.9 51.7 51.8 51.8 5i.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 S1.9 51.9

GE 100C1 51.8 52.7 52.8 !2.8 52.6 5.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 67.9 52.9 52.9GE 12001 53.2 56.1 561.2 56.2 54.2 56.3 54.3 54.3 54.3 54.3 54.T 54.3 56.3 54.3 54.3 54.3

GE 10000 57.0 58.1 58.2 58.2 58.2 58.3 58.3 583 58.3 59.3 58.3 58.3 58.3 19.3 59.3 58.3

GE 90001 57.2 56.5 58.6 5A.b 56.6 58.7 58.7 58.7 58.7 58.7 5t.7 58.7 58.7 58.7 59.7 58.7GE 8001 63.2 64.5 64.6 66.8 66.9 65.1 65.1 65.1 6S.1 65.1 65.1 65.1 65.1 65.1 b5.1 65.1

GE 70031 66.3 65.9 66.0 66.3 66.7 66.9 66.9 66.9 66.9 66.9 66.9 66.9 66.9 6b.9 66.9 6b.9

GE 6001 66.1 68.2 68.5 68.8 69.1 69.4 69.4 69.q 69.6 69.6 69.6 69.6 69.6 69.4 b9.4 69.4

GE 500 1 70.9 73.6 76.0 7.3 76.7 7.9 7.9 7.9 74.9 7.9 7.9 76.9 74.9 79.9 74.9 74.9bE 45001 75.3 78.2 78.7 79.a 19.5 79.7 79.7 79.7 79.7 19.? 79.7 79.

7 79.t 79.7 79.7 79.7

GE 4o01 78.5 51.8 87.5 92.8 83.2 83.6 83.6 83.6 83.6 83.6 8.6 83.6 83.9 P3.9 83.6 83.6GE 350CI 81.2 86.7 85.6 86.0 86.5 86.7 66.7 8.7 6.7 6. 86. 87 6..7 8 967 .7 86.7 86.7GE 30001 8.6 88.5 89.5 9v.9 90.5 90.8 90.6 93.9 90.9 90.9 97.9 9C.9 90-9 90.9 97.9 9.9

GE 25001 85.6 89.5 90.6 91.1 91.7 91.9 97.0 92.2 92.2 92.2 9?.2 92.2 92.2 92.2 92.2 92.2GE 2001 86.7 9C.9 92.3 92.9 93.5 96.0 96.2 96.3 94.3 94.3 96.3 96.3 96. 3 9.3 96.3 96.3GE 1gUC0 87.1 91.6 97.8 93.6 96.1 96.5 96.7 96.8 --4 6.,8 96.8 96.8 96.8 96.9 96.6 96.6 96.6GE ISOCI 87.5 91.6 93.2 96.3 95.1 95.5 95.9 96.0 96.0 96.0 96.0 96.0 96.0 qb.O 96.0 96.0GE 120CI 87.5 91.9 93.4 96.5 95.3 95.7 96.1 96.Z 95.2 96.2 9(.2 96.2 96.2 96.2 96.2 96.2

FE IC 87.6 92.2 96.0 95.1 95.9 96.3 96.8 96.9 96.9 06.9 96.9 96.9 96.9 96.9 96.9 96.9

GE 90CI 87.7 92.3 94.1 95.2 96.0 96.5 96.9 97. 91.0 97.0 97.0 97.3 97.0 97.0 97.0 97.0GE 8003 81.7r 92.3 96.1 '75 .2 96.0 o6.5 97.1 97.2 97.3 47.4 91.6 97.6 97.6 97.4 91.6 91.6GE 7033 87.7 92.3 96.1 95.3 96., 96.& 97.5 97.f 97.7 Q7.8 97.F 91.8 97.8 97.8 97.8 97.8E 0D11 87.7 92.3 96.1 95.3 96.1 96.8 97.6 97.7 90.0 98.3 99.1 98.1 98.1 q.1 9R.1 94.1

GE 5LCI 87.7 92.3 96.1 95.3 96.6 97.5 98.4 98.6 98.8 98.9 99.9 98.9 98.9 98.9 9R.9 98.9GE 460 87.7 92.3 96.1 95.3 96.6 97.5 98.7 99.0 99.2 99.6 9Q.4 99.5 99.S 99.5 99.5 99.5

GE 30Cr 67.7 9Z.3 96.1 95.3 96.6 97.5 98.9 99.2 99.5 .9.6 99.6 99.7 99.7 99.7 99.8 q9.8

GE 2UCI 87.7 92.3 96.1 95.3 96.6 97.b 99.0 99.5 99.7 99..3 99., 99.9 99.9 99.9 10,.0 300.0GE lOCI 87.7 92.3 96.1 95.3 96.6 97.6 99.0 99.5 99.7 99.11 90.f 99.9 99.9 99.9 100.0 IOL.O

GE C 87.7 92.3 94.1 95.3 96.6 97.6 9Q 0 99.5 99.7 99.8 99.9 99.9 99.9 99.9 131.0 300.0

TOTAL NUMBER OF OBSERVAI1ONS: 933

GLk.BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Or CFILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSA81 WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PEIOD OF RECORD: 78-87MONTH: MAY HOURS(LSTI: -20f-1400

...........................................................................................................................CE 111NG VISIBILITY IN STATUTE MILES

IN I GE CE GE GE GE GE GE 6E GE GE GE GE GE GE GE GEFEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/14 1 3/4 S/8 1/2 5/16 1/4 0

...........................................................................................................................

NO CEIL 1 41.3 '41.5 41.5 41.5 41.5 41.5 41.5 41.5 41 .5 41.5 41.5 41.5 41.5 41.5 41.5 41.5

GE 2GO00 48.5 48.8 48.8 48.8 48.8 43.A 48.8 48.8 48.8 48.8 4R.8 48.8 48.8 48.8 48.8 48.8GE 18001 49.0 M9.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 '49.4GE 160001 49.0 49.4 49.4 49.4 49.4 49.4 49.4 49.4 49.4 " 9 49. '4 49.4 '494 49.4 49.4 49 4GE 14O00i 50.5 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 50.9 57.9 50.9GE 120UCI 52.2 52.5 52.S 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 5i.5

GE 1000C1 56.3 56.9 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0GE 900C1 56.8 51.3 57.4 57.4 57.4 57.4 57.4 57.4 57.4 0 .4 57.4 57.4 57.4 57.4 57.4 57.4GE 300CI 61.7 62.5 62.7 62.7 62.7 62.7 62.7 62.7 62.7 82.3 6/.7 62.7 62 7 62.7 62.7 b2.7GE 710CI 64. 64.8 65.1 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 bS.4 65.4GE 61001 66.8 67.6 68.3 68.6 68.7 68.7 68.7 68.3 be.7 68.7 bq.? 68.7 68.7 68.7 68.7 68.7

GE 50001 74.5 75.7 76.8 77.2 77.4 77.5 17.5 71.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5GE '45U0 77.5 78.9 80.1 80.9 81.1 81.2 81.2 81.2 81.2 I.2 81.2 81.2 '41.2 81.2 81.2 81.2GE 4OC1 81.7 83.7 85.1 85.8 66.1 86.2 86.2 86.2 86.2 86.2 86.? 86.2 86.2 86.2 86.2 86.2GE 350C1 84.1 86.0 87.5 A.3 88.8 88.9 88.9 88.9 88.9 88.9 88.9 88.9 88.9 88.9 88.9 88.9bE 3UC 1 86.6 89.6 91.2 91.9 92.6 92.7 92.9 93.0 93.0 93.0 97.O 93.0 93.0 93.0 93.0 93.0

GE 250CI 87.4 9C.4 92.0 92.8 93.5 93.7 93.9 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0GE 20001 88.0 91.1 92.7 93.5 94.3 94.5 94.7 95.1 95.1 95.1 95.1 95.1 95.1 0s.1 95.1 95.1GE 18lC 88.1 91.2 92.8 93.8 94.7 94.9 95.3 95.6 95.6 95.6 95.6 T.o ;5.6 -5.6 9,6 9o5.6GE ISOC 1 88.4 91.6 93.2 94.3 95.4 95.6 95.9 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2GE 12001 88.4 91.8 9 3.4 94.7 96.0 96.5 96.9 97.4 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5

GE 10001 88.4 91.8 93.5 94.9 96.5 96.9 97.3 97.8 98.0 98.0 99.0 9$.0 98.0 Q8.0 98.0 96.0bC 9001 88.4 91.8 93.7 95.1 96.6 97.0 97.5 98.1 98.2 98.2 9P.2 98.2 98.2 98.2 98.2 96.2GE 801 88.4 91.8 93.7 95.2 96.8 97.3 97.8 98.4 98.5 98.5 9F.5 98.5 98.5 98.5 98.5 98.5GE 7001 88.4 91.8 93.7 95.2 96.8 97.3 98.0 98.5 98.7 98.7 98.7 98.7 98.7 98.7 98.3 98.7GE 6001 88.4 91.8 93.7 95.3 97.2 97.7 98.4 98.9 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.1

GE 5001 88.4 91.8 93.7 95.3 97.2 97.7 98.6 99.2 99.5 99.6 99.6 99.6 99.6 99.6 99.6 Q9.6GE 4OCI 88.4 91.8 93.7 95.3 97.2 97.8 99.7 99.4 99.6 q9.7 99.7 99.7 99.7 99.7 9-.7 99.7GE 3011 8d.4 91.8 93.7 95.3 97.3 98.0 98.8 99.5 99.7 99.8 99.8 99.8 99.8 99.8 99.8 99.8c, 20CI 88.4 91.8 93.7 95.3 97.5 98.2 99.0 99.7 99.9 170.0 1o.0 100.0 100.0 1c.0 107.0 100.0GE lO1 8e.4 91.8 93.7 95.3 97.5 98.2 99.0 99.7 99.9 i00.0 100.0 100. 130.0 110.0 100.0 I00.0

GE C1 88.4 91.8 93.7 95.3 97.5 98.2 9q.c 99.7 99.9 1ro.0 G 00.7 c.C 100.0 10.0 200.0 10C.0

...........................................................................................................................

TOIAL NUMBER OF OBSERVATIONS: Q30

-A,

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AF8 NY PEPIOO OF RECORD: 78-87MONTH: MAY HOURSCLSTI: 1500-1700

CE IL ING VflSIPILX7Y IN STATUTE MILESIN I GE CE GE GE GE GE GE GE GE GE GE GE GE CE GE GL

FEET I 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/ 5/8 112 5/16 1/4 0

NO CEIL I N1.8 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 NZ.0 42.0 42.0 42.0 42.0 42.0 42.0

GE 20700C1 47.8 48.1 48.1 48.1 48.1 48.1 48.1 4S.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 4.1GE 1800C 1 48.9 49.1 49.1 49.1 49.1 49.1 49.1 49.1 49.1 N9.1 49.1 49.1 49.1 49.1 49.1 49.1GE 160001 49.0 49.2 49.2 49.2 49.2 49.2 49.2 49.2 9.2 4.2 49.2 49.2 49.2 4q.2 49.2GE 1400CI 50.4 5C.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 51.6 5C.6GE 1200C1 53.5 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8

GE 100001 56.8 57.1 57.4 57.4 57.4 57.4 57.4 57.4 57.4 57.4 57.4 53.'. 57.4 57.4 57.4 57.4GE 90001 57.5 57.8 58.2 58.2 58.2 58.2 53.2 58.2 58.2 S8.2 5P.2 58.2 58.2 58.2 58.2 58.2GE 800C 62.9 63.2 63.5 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7GE 70OCI 65.8 66.1 66.5 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6GE 60001 68.8 69.4 69.9 70.0 70.1 70.1 70.1 70.1 70.1 7D.1 70.1 70.1 70.1 70.1 7n.1 7L.i

GE 50001 76.2 77.0 77.8 78.0 78.3 78.4 78.4 78.4 78.4 78.4 7q.4 74.4 78.4 78.4 78.4 78.4GE 45001 79.2 8C.1 81.1 81.2 81.6 81.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7GE 400CI 83.2 84.5 85.7 86.0 86.9 87.3 87.3 87.4 87.4 87.4 87.4 87.4 87.4 87.4 87.4 87.4UE 35CCI 85.4 86.9 88.3 88.7 89.7 90.2 90.2 90.3 90.3 00.3 90.3 90.4 90.4 0C.4 91.4 96.4GE 30001 87.7 89.4 91.3 91.8 92.9 93.4 93.5 93.7 93.7 93.7 91.7 93.8 93.8 93.8 93.8 93.8

GE 250C 88.4 9C.3 92.4 92.9 94.0 94.5 94.6 94.8 94.8 94.8 94.8 94.9 94.9 94.9 94.9 94.9GE 200CI 88.7 9C.8 92.9 93.5 94.6 95.2 95.4 95.8 95.8 95.8 95.9 95.9 95.

9 95.9 95.9 95.9

GE 18001 89.0 91.3 93.4 94.3 95.5 96.0 96.2 96.7 96.7 96.7 96.7 96.8 96.8 96.8 96.8 96.8GE 15001 89.0 91.4 93.5 94.4 95.8 96.3 96.6 97.0 97.0 97.0 97. 0 97.1 97.1 07.1 97.1 97.1GE 123C0 89.0 91.5 93.8 04.6 96.0 96.6 96.9 97.3 97.3 91.3 97.3 97.4 97.4 97.4 97.4 97.4

GE 10001 89.0 9 1.0 93.8 94.6 96.2 '16.9 97.3 97.7 97.7 97.7 97.7 97.8 97.8 07.8 97.8 97.8GE 9001 89.0 91.5 93.8 94.6 96.5 S7.1 97.5 98.c 98.0 98.0 98.0 98.1 98.2 98.1 99 .1 0B.1GE .cCI 89.n 91.5 93.8 94.9 96.9 97.5 98.0 98.4 98.4 91.4 99.4 92.5 98.5 08.5 98.5 98.5GE lci 89.0 91.5 93.8 94.9 96.9 97.5 98.0 98.4 98.4 99.4 98.5 98.5 98.5 99.5 98.5

GE (001 89.0 91.5 93.8 94.9 96.9 97.5 98.1 98.5 98.5 98.

5 9A.5 98.6 98.6 98.6 99.6 98.6

GE 50CI 89.0 91.5 93.8 94.9 96.9 97.5 98.2 99.0 99.2 99.6 9).6 99.7 99.7 99.7 99.7 99.7GE 4U01 89.0 91.5 93.8 94.9 96.9 97.6 98.3 99.1 99.6 99.9 99.9 10c.0 100.0 100.0 207.0 100.0GE 30C1 89.0 91.5 93.8 94.9 96.9 97.6 98.3 99.1 99.6 99.9 99.9 IOC.C 100.0 100.0 10.0 10C.0GE 2OCl 80.0 91.5 93.8 94.9 96.9 97.6 98.3 99.1 99.6 99.9 99.9 100.0 100.0 IO.O 100.0 10u.0GE 1CQ0 89.0 91.5 93.8 94.9 96.9 97.6 98.3 99.1 99.6 99.9 99.9 100.0 100.0 100.0 100.0 100.0

GE c 89.0 91.5 93.8 94.9 96.9 97.6 98.3 99.1 99.6 99.9 99.9 100.0 100.0 1 C.O 100.0 100.0

TOTAL NUMBER OF OBSERVATION5: 930

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUEN-CY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFETAC rFOM HOURLY OBSERVATIONS

Ali, slATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH ArE NY PERIOD OF RECOPO: 78-87

MONTH: MAY HOL'SIL53): 1800-2000

IN |GE GE GE GE GE GE GE GE GE GE £ 6 E GE GE GE C E

FLET I 10 6 5 N 3 Z 112 2 I 112 1 1/4 1 3/N 5/8 112 5/16 1/4 0. . . . . . .... ' .. ... .. .. . .. .. . . ..... .* I .... .. .. .. . ..... . . . .. .. ,............ .......................

NO CEIL I 43.4 43.5 43.7 43.7 43.7 43.7 43.7 43.7 43.7 43.7 4T.7 4.7 43.7 43.7 43.7 43.7

GE 200001 49.2 49.4 49.6 49.7 49.7 99.7 49.7 9Y.7 NY.7 59.7 49.7 49.7 49.7 N9.7 49.7 49.7

GE 1801C1 50.3 50.4 50.6 50.8 50.8 50.8 50.8 53.8 50.8 50.8 517.9 50.8 50.8 51.8 50.8 50.8GE 1600C1 50.3 5C.4 50.b 50.8 50.8 50.8 50.9 50.8 50.8 o.B 50.R 51.8 50.8 SC.8 5".8 5L.8bE 140001 51.3 51.4 51.6 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.? 3I.7 51.7 51.7 51.7

GE 12001 55.5 55.6 55.8 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 SS.9 55.9 5 . 55.9 55.9

GE 1Uooc 60.1 6E.3 61.1 61.2 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3

GE 90001 60.5 6C.8 61.5 61.6 61.7 61.7 61.8 61.8 61.8 61.9 61.9 61.9 61.9 61.9 61.9 61.9

GE 300C 66.0 66.6 67.6 67.7 68.v 68.0 68.1 68.2 68.2 68.7 6A.3 68.3 69.3 6e.3 b9.3 66.3GE 70001 69. 0 69.7 70.8 70.9 71.1 71.1 71.3 71.4 71.4 71.5 71.5 71.5 71.5 71.5 71.5 71.5GE 600C1 71.2 71.9 73.3 73.4 73.8 73.8 74.0 74.1 74.1 74.2 74.7 74.2 75.2 75.2 75.2 7'..2

GE 5001 76.7 77.8 79.5 79.7 80.6 80.8 81.0 81.1 81.1 81.2 81.2 81.2 81.2 91.2 81.2 81.2

GE 45001 81.5 92.9 84.6 85.8 65.8 85.9 86.1 86.2 86.2 96.3 86.x 86.3 86.3 P6.3 86.3 Rb.3GE 40OI 83.9 95.7 88.1 88.5 89.? 89.8 90.1 90.2 90.3 90.4 90.4 q0.4 90.4 9C1. 90.4 q.5

GE 35001 85.8 81.6 90.1 90.5 91-9 92.0 92.5 92.6 92.7 92.8 92.8 92.8 92.8 q2.8 9,.8 9i.9

GE 30001 86.5 88.7 91.2 91.6 93.0 93.1 93.5 93.7 93.8 93.9 93.9 93.9 93.9 93.9 9 .9 9. .

GE 25001 86.7 85.2 92.0 52.5 94.0 94.1 94.7 94.9 95.1 95.2 95.2 95.2 95.2 Q5.2 99.2 95.3GE 20001 870 85.8 92.7 93.3 94.9 95.1 95.7 95.9 96.0 96.1 96.1 96.1 96.1 96.i 96.: 6.2

GE 18IUO 87.0 8 98 92.6 93.4 95.1 95.2 9S.8 96.0 96.1 96.2 96.2 96.2 96.2 9b.2 96.2 9t. .3

GE 15ZC 87.2 01.2 93.4 94.1 95.9 96. I 96.8 97.2 97.3 97.4 97.4 97.4 97.4 97.4 97.4 97.5GE 12001 87.2 9C.2 93.4 94.1 95.9 96.1 96.8 97.2 97.3 97.4 97.4 97.5 97.4 97.5 97.4 97.5

GE 10C1 87.2 91.4 93.7 94.3 96.2 96.6 97.2 97.6 97.? 97.8 97.9 Y97.8 97.8 97.8 97.8 95.0GE 9111l 87.2 9C.4 93.7 94.4 96.6 97.0 97.6 98.2 98.3 98.4 9R.4 S8.4 98.4 'Z8.4 9Q.4 96.5GE 8U01 87.2 9C.4 93.7 94.6 96.8 97.2 97.8 98.5 98.6 98.7 9q.7 98.7 98.7 08.7 98.7 98.8GE 70Cl 87.2 91. 93.7 94.6 96.8 97.2 97 8 95.7 98.9 98.9 99.9 98.9 98.9 '8.9 9.9 99.0GE 6001 87.3 90.5 93.8 94 8 97.0 974 98.1 99.0 99.1 Q92 99Z7 q'.2 99.2 9.2 99.2 99.4

GE SunI 87.3 9C.5 93.8 94.8 97.0 97.4 98.1 99.0 99.5 99.6 99.6 99.6 99.6 99.6 99.6 99.7

GE #O1 87.3 9C.5 93.8 94.8 97.0 97.5 98.2 C9.1 99.6 99.7 90.7 99.7 99.7 99.7 9'.7 99.8GE 30cl 87.3 9C.5 93.8 94.8 97.0 97.6 98.4 99.4 90.p 99.9 99.9 99.9 J9.9 C9.9 99.9 10L.0

GE 2U01 87.3 9C.5 93.8 94.8 97.0 97.6 98.4 99.4 99.8 9919 90..9 99.9 99.9 99.9 9.9 0Lo0.

GE icCI 87.3 91.5 93.8 94.8 97.0 97.6 99.4 99.4 99.8 99.9 9-.9 9;.9 99.9 99.q 9Q.9 I0.O

GE c1 87.3 91.5 93.8 95.8 97.7 97.6 98 .4 99.5 59.9q 99.9 9 .9; 99.9 99.9 99. v 99.9 101c.0

TOTAL NUMBER OF OBSERYATIONS: 930

.Sm

GLESAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSA16 MEAIHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD Of RECORD: 78-87MONTH: MAY HOURStLSTI: Z10-2300

.......................................................................... ............................................

CEILING VISIBILITY IN STATUTE MILESIN | GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET T 1o 6 5 N 3 2 1/2 2 1 1/2 1 1/ 1 3/N 5/8 1/? 5116 1/ 0

NO CEIL I 99.7 99.8 N9.9 50.1 50.2 50.2 S0.2 50.2 50.2 50.2 57.2 50.3 50.3 50.3 50.3 50.3

GE 200001 51.9 52.0 52.3 52.5 52.6 S2.6 52.6 52.6 S2.6 52.6 57.6 52.7 52.7 52.7 57.7 52.7

GE 180001 51.9 52.0 52.3 52.5 52.6 52.6 52.6

52.6 52.6 52.6 52.6 52.7 52.7 52.7 52.7 52.7

GE 16000 51.9 52.0 52.3 52.5 52.6 52.6 52.6 52.6 52.6 52.6 52.6 52.7 52.7 52.7 52.7 52.7

GE INOUCI 52.7 52.8 53.0 53.2 53.3 53.3 53.3 53.3 53.3 S3,3 53.3 53.4 53. 53. 53.N 53 .GE 12000| SN.2

5 . 6 5.A Sa.9 54,9 59.9 5N.9 59.9 5N.9 54.9 55.1 55.1 55.1 55. 5.

GE 100001 57.2 57.9 57.7 !8.0 5.3 58.N 58.5 58.5 58.5 58.5 58.S 58.6 58.6 58.6 58.6 58.6

GE 900CI 57.6 57.8 58.2 58.4 58.8 58.9 59.0 59.0 59.0 59.0 59.0 59.1 59.1 59.1 59.1 59.1GE 80001 64.6 65.2 65.5 65.7 66.5 66.6 66.7 67.0 67.0 67.0 67.0 67.1 67.1 67.1 67.1 67.1GE 70001 66.5 67.0 67.3 67.6 65.9 68.5 68.6 68.9 68.9 68.9 6P.9 69.0 69.0 69.0 69.0 69.0

GE 600CI 70.1 71.3 72.2 72.6 73.9 73.5 73.8 79.1 79.1 79.1 79.1 74.2 79.2 79.2 74.4 7..2

GE 5

0C1

75.5 76.9 77.8 78.4 79.5 79.6 79.8 80.2 50.2 P0.2 50.2 80.3 80.3 80.3 go.3 890.3GE 45001 79.5 81.1 82.6 83.2 8.9 89.5 8N7 85.2 85.2 05,

2 85.2 83.3 85.3 95.3 85.3 85.3

GE 90001 82.3 94.6 86.9 87.6 89.0 89.1 89.9 89.9 89.9 89.9 89.9 90.0 90.0 90.1 90.1 9U.1GE 35UC| 89,. 87.1 89.5 90.2 91.7 91.8 92.0 92.6 92.6 92.6 92.6 92.7 92.7 92.8 92.8 92.8

GE 300CI 85.6 88.6 91.9 92.2 93.8 93.9 99.1 9N.6 9N.6 Q4.6 99.6 94.7 99.7 99.8 99.8 94.8

GE 2S0CI 86.0 89.9 92.2 92.9 99.6 99.7 95.3 95.8 95.8 95.8 95.9 95.9 95.9 96.0 96.0 96.0GE 200C

i 86.0 89.5 92.9 93.1 94.9 95.1 95.6 96.1 96.1 96.1 96.1 96.2 96.2 96.3 96.3 96.3

GE 18001 86.0 89.5 92.N 93.1 91.9 95.1 95.6 96.1 96.1 96.1 96.1 96.2 96.2 96.3 96.3 9t.3

GE 150CI 86.0 89.5 92.4 93.1 99,.9 95.1 95.6 96.2 96.2 96.2 96.? 96.3 96.3 96.5 96.5 96.5

GE 12UCI 86.1 89.6 92.5 93.2 95.2 95.3 95.8 96.5 96.5 96.5 96.5 96.6 96.6 96.7 96.7 96.7

GE 10001 86.2 89.7 92.7 93.4 95.7 95.8 96.3 97.0 97.2 97.2 97.2 97.3 97.3 97.4 97.9 97.9GE 90Cl 86.3 85.9 92.9 93.8 96.2 96.3 97.0 97.6 97.8 97.8 97.8 -?.0 98.0 98.1 98.1 98.1

GE 80C1 86.7 89.9 93.0 93.9 96.3 96.5 97.1 97.7 98.0 98.0 98.l 8. 1 98.1 98.2 98.2 98.2GE 7OI 86.3 85.9 93.1 99.1 96.9 97.1 97.7 98.5 98.8 98.8 99.8 98.9 98.9 99.0 99.0 99.0

GE 6001 86.3 85.9 93.1 99.9 97.3 97.5 98.2 98.9 99.2 99.2 99.2 99.9 99.9 99.5 99.5 99.5

GE S0d 86.3 89.9 93.1 99.9 97.3 97.5 98.2 99.0 99.9 99.9 99.9 99.5 99.5 99.6 99.6 99.6

GE 4001 86.3 89.9 93.1 91.9 97.3 97.5 98.3 99.1 99.5 99.5 99.5 99.6 99.6 99.7 99.7 99.7

GE 30C 86.3 89.9 93.1 99.9 97.3 97.6 95.9 99.2 99.6 99.6 99.7 99.8 99.8 99.9 99.9 99.9

GE Z0CI 86.3 89.9 93.1 99.9 97.3 97.6 98.9 99.2

99.6 99.6 99.7 99.9 99.9 n0O.0 100-0 10.0GE 1001 86.3 89.9 93.1 99.9 97.3 97.6 98.9 99.2 99.6 99.6 99.7 99.9 99.9 100.0 100.0 1O.0

GE CI 86.3 89.9 93.1 99.9 97.3 97.6 98.9 99.2 99.6 99.6 99.7 99.9 99.9 10c.0 100.0 100.0

TOTAL NL4RFR OF OBSERVATIONS: 930

Ad

GLGBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVATIONSAIR WEAIHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PED1Oo Or RECORD: 78-87MONTH: MAY HOURSILSI): ALL

IN G GE CE GE 6F 0! aC GE CE LE GE VE GE GE GE GE GE

FEET 10 6 5 4 3 2 1/2 2 I 112 1 1/4 1 31/ 5/8 1/2 5/16 1/4 0

NO CElL 1 44.9 .5.2 -65.3 '5.3 95. 45.4 '5.s '5.5 115.5 '5.6 45.6 45.6 '5.6 4.6 45.7 45.7

GE 200001 49.3 49.7 99.7 49.8 119.9 199.9 9.9.9 50.0 50.0 50.0 50.1 50.1 50.1 50.1 50.2 50.2

GE 180001 99.9 SC.3 50.3 50.4 50.5 50.6 50.6 50.6 50.6 50.7 50.7 50.7 50.8 5C.8 50.8 50.8GE 160UCI '49.9 5C.3 50.' 50.' 50.5 50.6 50.6 5u.7 50.7 50.7 Sr.7 50.7 50.8 50.8 50.8 50.9GE IOOl 50.8 51.2 51.3 51.3 51.5 51.5 51.6 51.7 51.7 51.7 5.17 51.8 51.8 51.8 51.9 51.9

GE 120GC 52.7 53.2 53.3 53.3 53.' 53.5 53.5 53.6 53.6 53.7 53.7 53.8 53.8 S3.8 51.9 53.9

GE 1O0GC 56.' 57.U 57.2 57.2 57.4 57.5 57.6 51.7 57.7 57.7 57.8 57.8 57.8 57.9 57.9 57.9

GE 90001 56.9 57.5 57.8 57.8 58.0 58.1 58.1 58.3 58.3 58.3 58.4 58.' 58.' 58.5 55.5 5b.5

GE 800C0 62.9 63.7 6&.0 64.] 6'.' 6'.5 6b.6 64.8 6'.8 6'.9 64.9 64.9 65.0 65.0 65.1 65.1GE 700C1 65.4 66.' 66-7 66.9 67.3 67.4 67.' 67.6 67.7 67.7 67.8 67.8 67.9 67.9 67.9 68.0GE 60001 68.' 69.6 70.2 70.5 70.9 71.0 71.1 71.3 71.' 71. 71.5 71.5 71.6 71.6 71.6 71.7

GE 500C 7.1 75.7 76.5 76.8 77.' '7.6 77.7 78.0 78.0 78.1 78.1 78.2 78.2 78.2 78.3 7.1.f. 45.CC 77.8 79.7 80.7 81.0 81.8 81.9 8?.1 82.' 82.4 82.5 82.6 82.6 82.6 82.b 82.7 82.7

GE 'DUC. 81.0 83.5 8'.8 85.3 86.2 86.' 86.6 86.9 87.0 87.1 87.1 87.2 87.2 P7.2

87.3 87.3

UE 35001 83.1 85.8 87.3 87.9 88.8 89.1 89.3 89.6 89.7 89.7 89.8 89.9 89.9 89.9 9C.0 90.0GE 30001 85.0 88.2 90.0 90.6 91.7 91.9 92.2 92.6 92.6 92.7 97.7 92.8 92.8 92.9 92.9 93.0

GE 250C 85.6 85.1 91.0 91.6 92.8 93.1 93.' 93.8 93.8 93.9 94.0 96.0 94.0 9'.1 94.2 94.2GE 20UO0 86.1 89.6 91.6 92.'. 93.6 93.9 99.3 9'.7 9'.8 99.9 9'.9 95.0 95.0 95.1 95.1 95.2

GE 18001 86.2 86.8 91.8 92.6 93.9 9'.2 9'.6 95.0 95.1 95.2 95.2 95.3 95.3 95.' 95.' 95.5

GE 150C 86.' 9C.0 92.1 93.0 94.4 94.7 95.? 95.6 95.7 9S.8 95.8 95.9 95.9 96.0 96.0 96.1GE 120C 86.' 9C.1 92.3 93.2 9'..7 95.1 95.6 96.1 96.2 96.3 96.3 96.' 96.' 96.5 96.5 96.6

GE 1OOC 86.' 9C.3 92.5 93.5 95.1 95.6 96.2 96.7 96.8 Q6.9 97.0 97.0 97.0 97.1 97.2 97.2

GE 9UCI 86.5 9G.3 92.6 93.6 95.3 95.8 96.' 97.0 97.1 97.2 97.3 91.3 97.3 97. 97.5 97.

5GE 8001 86.5 90.'. 92.7 93.8 95.6 96.1 96.7 97.' 97.5 97.6 97.7 97.7 97.7 97.8 97.9 97.9

GE 700l 86.5 9C.5 92.8 93.9 95.8 96.3 96.9 97.6 97.7 97.8 97.9 98.0 98.0 98.1 99.1 98.2rE 60c 86.5 9C.5 92.8 9'.1 96.0 96.5 97.3 98.0 98.1 98.2 98.3 9k.3 98.' 98.' 98.5 98.5

GE 5uc 86.5 9C.5 92.8 9'.1 96.1 96.7 97.S 98.3 98.5 98.7 98.7 98.8 98.8 98.9 98.9 99.0

GE '.003 86.5 9C.5 92.8 9'.1 96.3 96.7 97.6 98.5 98.8 99.0 99.1 99.2 99.2 99.3 99.3 99.4GE 3i O 86.5 9C0.5 92.8 9'.1 96.2 96.6 97.8 98.8 99.3 99.3 99.5 99.5 99.6 99.6 99.7 99.8GE 20C 86.5 9C.5 92.8 9'.1 96.2 96.9 97.9 98.9 99.2 99.5 99.6 99.7 99.7 99.8 99.9 100.0

- GE 3OCi 86.5 9C0.5 92.8 9'.1 96.2 96.9 97.9 98.9 99.2 99.5 90.6 99.7 99.7 99.8 99.9 100.0

GE 01 86.5 9C.5 97.8 9'.1 96.2 96.9 97.9 98.9 99.2 99.5 99.6 99.7 99.7 99.8 99.9 100.0.. . . . . . . . . . .. . . . . . . ....................... .° .. . . . . . . .. . . . . .. . . ........ .. . ... .. . . . .

TOTAL NUMBER OF OBSERVATIONS: 7'.0

AL*A

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC F6O HOURLY OBSERVATIONSA£1 WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: 78-A?

MONTH: JUN HOURS(LTI: 0000-0200........... ,.....e..e..........*.................................... •,................,....

CEILIN0 0 " VI5IRIL~iY IN STATUTE MILES "0"'

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET 1 10 b 5 N 3 2 1/2 2 1 112 1 1/4 1 3/N 5/8 112 5/36 1/N 0

NO CElL I 51.9 54.3 59.8 S5.1 S5.7 56.2 57.0 57.0 57.0 57.0 57. 1 7.G 57.1 7.1 57.1 57.1

GE 200001 53.9 56.8 57.2 57.b 58.1 58.7 59.9 59.9 59. S9.11 59.6 59.6 59.6 59.6 59.6 S9.6GE 180001 54.0 56.9 57.3 57.7 58.2 S8.8 59.6 59.6 59.6 59.6 59.7 S9.7 59.7 59.7 59.7 59.7

GE 160001 S.0 56.9 57.3 57.7 58.2 S8.8 S9.6 59.6 59.6 59.6 59.7 59.7 S9.7 S9.7 59.7 59.7

E 140031 55.2 58.1 58.6 58.9 59.1 60.0 60.8 60.8 60.8 60.8 60.9 60.9 60.9 60.9 60.9 6C.9

GE 120001 56.7 59.6 60.0 60.3 60.9 61.6 62.7 62.7 62.7 62.7 62.8 62.8 62.8 62.8 62.8 62.8

GE IOOOCI 60.8 64.0

6N.N 6N.8 65.3 66.0 67.1 67.1 67.1 67.1 67.2 67.2 67.2 67.2 67.? 61.2GE 90001 61.2 64.4 69.9 65.2 65.8 66.4 67.6 67.6 67.6 67.6 67.7 67.7 67.7 67.7 67.7 67.71E 80001 66.0 69.6 70.9 71.0 71.7 72.3 73.9 73.6 73.6 73.- 77.7 73.7 73.7 73.7 73.7 73.7GE 70001 68.0 71.8 72.8 73.3 79.0 74.7 75.8 75.9 75.9 7S.9 76.0 76.0 76.0 76.0 76:0 76.0GE 600C 1 70.8 79.8 75.9 76.7 77.9 A. 1 79.6 79.7 79.7 79.7 79.8 79.8 79.8 79.8 79.8 79.8

GE 5001I 75.7 79.9 81.2 82.1 83.0 83.7 85.1 8S.2 AS.2 95.Z 85.9 85.9 85.9 P5.4 85. 85.4GE 95001 79.7 89.3 86.1 87.1 88.0 86.7 90.1 90.2 90.2 90.2 90.9 90. 90.9 9C.o 90.9 90.9GE 90001 81.6 87.0 89.1 90.2 91.9 92.1 93.6 93.7 93.7 93.7 93.9 93.9 93.9 93.9 93.9 93.96E 3SOC 82.9 88.0 90.7 91.9 93.6 94.2 95.9 96.0 96.0 96.0 96.2 96.2 96.2 96.2 96.2 96.2

GE 30001 83.0 89.2 92.1 93.9 95.7 96.3 98.1 98.2 98.2 98.2 9P.9 98.9 98.6 98.6 99.6 98.6

GE 25001 83.7 89.9 92.8 99.6 96.3 97.1 98.9 99.0 99.0 99.0 99.2 99.2 99.3 99.3 99.3 99.3GE 200C 83.8 9C.0 92.9 99.7 96.6 97.3 99.3 99.9 99.9 99.9 99.7 99.7 99.8 ... @ 99.8 99.8GE 16001 83.8 9C.0 92.9 99.7 96.6 97.3 99.3 99.4 99.9 99.9 99.7 99.7 99.8 99.8 99.8 99.8GE 15001 83.8 9C.0 92.9 99.7 96.6 97.3 99.3 99.9 99.9 99.9 99.7 99.7 99.8 99.8 99.8 99.8GE 12001 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.6 99.6 99.6 99.8 99.8 99.9 99.9 99.9 99.9

GE 1006| 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.6 99.6 99.b 99.8 99.8 99.9 99.9 99.9 99.9GE 9001 83.9 9C.1 93.0 99.8 96.7 97. 99.9 99.6 99.6 99.6 99.8 99.8 99.9 99.9 99.9 99.9GE 8&)C 81.9 9C.1 93.0 99.8 96.7 97.9 99.9 99.6 99.6 99.6 99.8 99.8 99.9 99.9 99.9 99.9GE 7001 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.6 99.6 99.6 99.A 99.8 99.9 99.9 99.9 99.9

GE 60CI 83.9 9C.1 93.0 99.8 96.7 97.9 99.9 99.6 99.6 99.6 99.8 99.8 99.9 99.9 9Q.9 99.9

GE 5009 63.9 9C.1 93.0 99.8 96.7 97.4 99.9 99.7 99.? 99.7 99.9 99.9 100.0 100.0 109.0 130.0GE 9001 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.7 99.7 99.7 99.9 99.9 100.0 100.0 100.0 100.0

(iE 3001 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.7 99.7 99.7 99.9 99.9 300.0 100.3 100.0 1000GE 2U01 83.9 9C.1 93.0 99.8 96.7 97.9 99.9 99.7 99.7 99.7 99.9 99.9 100.0 100.0 100.0 100.0GE 100 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.7 99.7 99.7 99.9 99.9 100.0 10C.0 100.0 100.0

GE CI 83.9 90.1 93.0 99.8 96.7 97.9 99.9 99.7 99.7 99.7 99.9 99.9 100.0 100.0 100.0 100.0


AL-9

GL BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFETAC FROM HOURLY ObSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PLPIO OF RECORD: 78-87MONTH: JUN HOURSILSTII 0300-0500

................. .............................................. ............ ................ ............... ................ ...... .. .....

CEILING VISIBILITY IN STATUTE MILES10 1st GE GL BE GE GE GE GE GE GE GE GE GE GE GE GE

Fat I t0 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/N 5/8 1/2 5/16 1/4 0

NO.GflL 4 I.tg '17.1 '7.4 47o. 48.0 48.1 48.7 C19.0 49.0 '49.1 49.3 49.3 49.6 49.7 '9.9 '9.9

a A Niq 1900 SE.6 51.1 S2.1 51.8 52.1 $2.7 53.0 53.0 53.1 53.3 53.3 53.6 53.7 53.9 53.9ii .OO4 * SE.7 51.2 !1.2 11.9 52.2 52.8 53.1 53.1 53.2 53.4 53.4 53.7 53.8 54.0 54.0

,0 'sc.7 52.2 51.2 11.9 52.2 52.8 53.1 53.1 53.2 53.4 53.4 5'.! 53.8 54.0 54.0a SI.6 2.1 St:: 2.8 53.1 53.7 54.0 SN.0 54.1 5N.3 54.3 54.6 54.7 54.9 5.9'O", (11A. 6a~ l So s1..4 sit S.1 5s.4 56.3 56.7 5.7 56.8 57.0 57.0 57.2 57.3 57.6 57.6

, 8 .4 59.4 9., &0.1 60.? 61.6 61.9 61.9 62.0 62.2 62.2 62.4 62.6 62.8 62.8L a P9.0 60.0 00.0 ,0.7 61.2 ,2.1 62.4 62.4 62.6 67.8 62.8 63.0 63.1 63.3 63.3

l'7ftfi. 65.4 6%.& ,6.2 66.5 67.7 68.0 68.0 68.1 68.3 68.3 68.6 68.7 68.9 66.9* *.. . 1 qk'6'I .1 67.3 61.4 68.1 68.7 69.7 70.0 70.0 70.1 70.3 70.3 70.6 70.7 70.9 70.9

' S(6- OBI 64& 68.7 70.1 70.6 11.2 71.8 73.0 73.3 73.3 73.4 73.7 73.7 73.9 74.0 74.2 74.2

cc SOOCI 70.8 74.6 76.7 77.3 78.2 78.8 80.0 80.3 80.3 80.4 80.7 80.7 80.9 81.0 81.2 F1.2G GE 45C02 7o5. 79.7 81.9 @2.7 83.7 84.3 85.6 85.9 86.0 86.1 86.3 86.3 86.6 86.7 86.9 86.9GE 400C0 77.8 93.1 85.8 86.9 88.0 88.7 89.9 90.2 90.3 90.4 9?,.7 90.7 90.9 91.0 91.2 91.2GE 350C1 79.1 84.7 87.6 88.8 90.7 91.3 92.6 92.9 93.0 93.1 93.3 93.3 93.6 93.7 93.9 93.9GE 30001 80.1 85.9 88.9 90.3 92.4 93.1 94.4 94.8 94.9 95.0 95.2 95.2 95.4 95.6 95.8 95.8

GE 25001 80.4 86.2 89.2 90.8 92.9 94.0 95.3 95.8 95.9 96.0 96.2 96.2 96.4 96.6 96.8 96.8GE 20001 80.7 86.4 89.8 91.3 93.8 95.3 96.9 97.3 97.4 97.8 98.0 98.0 98.2 98.3 98.6 98.6GE 18001 80.8 86.6 89.9 91.0 94.0 95.6 97.1 97.6 97.7 98.0 99.2 98.2 98.4 98.6 98.8 98.8

GE ISOCI 80.8 86.6 89.9 91.4 94.0 95.6 97.1 97.7 97.8 98.1 98.4 98.4 98.7 98.8 99.0 99. 0GE 12001 81.0 86.8 90.2 91.8 94.3 95.9 97.4 98.0 98.1 98.4 98.8 98.8 99.0 99.1 99.3 99.3

GE IOC 81.0 R6.8 90.3 91.9 94.4 96.0 97.7 98.2 98.3 98.7 99.0 99.0 99.? 99.3 99.6 99.6GE 90c0 81.0 86.8 90.3 91.9 94.4 96.0 97.7 98.3 98.4 98.8 99.2 99.1 99.3 99.4 99.7 99.7GE 8001 8l. 86.8 90.3 91.9 94.4 96.0 97.7 98.3 98.4 98.8 99.1 99.1 99.3 99.4 99.7 99.7GE 70C1 81.0 86.8 90.3 91.9 94 .4 96.0 97.7 98.3 98.4 98.8 99.1 99.1 99.3 99.4 99.7 99.7GE 6U00 81.0 86.8 90.3 91.9 9N.4 96.0 97.7 98.3 98. 98.8 99.1 99.1 99.3 99.4 99.7 99.7

GE OC 81.0 86.8 90.3 91.9 94.4 96.0 97.7 98.4 98.6 98.9 99.2 99.2 99.4 99.6 99.8 99.8IE 100c 81.0 86.8 90.3 91.9 94.4 96.0 97.7 98.4 98.6 98.9 99.2 99.2 99.4 99.6 99.8 99.8GE 3U00 81.0 86.8 90.3 91.9 94.4 96.0 97.7 98.4 98.6 08.9 99.2 99.2 99.4 99.6 99.8 99.8GE 2U0 81.0 86.8 90.3 91.9 94.4 96.0 97.7 98.9 98.6 98.9 99.2 99.2 99.4 99.6 99.8 99.8GE 1001 81.0 86.8 90.3 91.9 94.4 96.0 97.7 98.4 98.6 98.9 99.2 99.2 99.4 99.6 99.8 99.8

GE CI 81.0 86.8 90.3 91.9 94.4 96.0 97.7 96.4 98.6 08.9 99.2 99.2 99.N 99.6 99.8 10C.O

IOTAL NUMBER OF 08SERVATIOKS: 900

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYusAFETAC FROM HOURLY OBSERVATIONSAlk WEAIHER SERVICEIMAC

STATION NUMBER: 726225 STATI CN NAME: PLATTSBURGH AF8 Ny PERIOD OF RECORD: 78-Si

MONTH: JUN HOURS4LST: 0600-o800

CE IL ING VISIPILITY IN SIATUTE MILESIN I GE BE GE GE GE GE GE GE GE G GE GE GE GE GE U E

FEET 1 10 6 5 4 3 2 1.2 2 1 112 1 1/' 1 3/ 5/8 112 E/I6 II/. 0

NO CEIL I 43.6 '.9.7 45.0 .5.' 46.1 '6.2 46.3 '6.6 46.6 96.6 '6.7 46.7 '6.7 46.9 47.0 47.0

GE 20000 48.21 .7 50.2 s0.8 .8 5D 52.1 52.. 52.. 52.'. 52.6 52.6 52.6 52.8 52.9 52.9GE 180009 9.2 .8 30.3 50.9 31.9 52.1 52.? 52.6 52.6 52.6 32.7 52.7 52.7 52.9 53.0 53.0GE 160001 '8.2 '9.8 50.3 50.9 31.9 52.1 52.2 52.6 52.6 52.6 52.7 52.7 52.7 52.9 53.0 53.0GE 140001 '.9.1 5C.8 51.3 51.9 52.9 53.1 53.2 51.6 53.6 53.6 53.7 53.7 51.7 53.9 5'.0 54.0GE 1z001 50.8 52.6 53.1 33.7 5'.7 5.9 55.0 55.3 55.3 55.3 35.' 55.' 55. 55.7 55.9 55.9

GE 100009 35.8 S 5.' 39.1 60.2 61.3 61:6 61.7 62.0 62.0 62.0 62.2 62.2 62.2 62.' 62.7 62.7GE 9000 56.8 59.'. 60.1 61.' 62.6 62.8 62.9 63.2 63 63.2 63.' 63.' 63.' 61.7 6.9 63.9GE 8OOCI 61.7 64.7 65.'. 67.2 68.7 68.9 69.1 69.' 69.' 69.'. 69.7 b9.7 69.7 69.9 70.1 70C.GE 700OI 69.2 67.7 68.8 70.7 72.2 72.' 72.8 73.1 73.1 73.1 73.1 73.1 71.1 73.6 73.8 73.8GE 6OOC1 66.' 7C.2 71.8 73.7 75.'. 75.9 76.2 76.6 76.6 76.6 7 8 76.8 76.8 77.0 77. 77.2

GE 50001 70.8 75.' 77.'. 79.6 81.' 81.9 82.2 82.6 82.6 82.6 82.P 82.8 82.8 81.0 83.2 83.2GE 450CI 79.3 78.9 82.1 8..3 86.2 86.7 87.1 87.'. 87.' 87.' 87.7 87.7 87.7 87.9 88.1 88.1GE '.00C 7S.3 81.' 81.9 86.'. 88. 88.9 89.3 89.7 89.7 99.7 89.9 89.9 89.9 90.1 90.3 9G.3GE 35001 77.6 83.9 86.1 88.9 90.9 91.3 92.0 92.1 92.' 92.' 92.7 92.7 92.7 92.9 931 93.1GE 30009 78.6 85.3 87.9 90.' 93.2 93.8 9'.7 95. 9 95. 9Sq 9.' 93.'q 95 7 95.9 95.9

GE 253001 78.8 85.8 88.' 91.0 94.0 94.6 95.6 96.1 96.2 96.2 96.' 96.' 96.' 96.7 96.9 96.9GE 200CI 78.8 85.9 88.7 91.2 911.3 95.0 96.k 97.0 97.1 97.1 97.3 97.1 97.' 97.7 97.9 97.9GE 18001 78.8 85.9 88.7 91.2 9'..3 9S.0 96.' 97.0 97.2 97.2 97.' 97.' 97.6 97.8 98.0 96.0GE 15009 79.0 86.1 88.9 91.' 9'.6 93.2 96.7 97.2 97.' 97.' 97.7 97 9797.8 98.0 98.2 98.2

GE 120CC 79.0 86.1 88.9 91.6 99.7 95.3 96.8 97.3 977 97.8 99.0 98.0 98.1 98.3 98.6 9o.6

GE nOCI 79.1 86.'. 89.3 92.0 95.1 95.8 97.3 97.9 98.2 98.3 98.6 98.6 98.7 98.9 99.1 99.1GE 9009 79.1 86.' 89.3 92.0 95.1 93.8 97.' 98.0 98.3 98.'1 98.7 98.7 98.8 99.0 99.2 99.2GE 80c 79.1 86.' 89.q 92.1 95.2 95.9 97.7 98.2 98.6 98.7 98.9 98.9 99.0 99.2 99.' 99.'GE 70c 79.1 86.4 89.' 92.1 95.2 95.9 97.7 98.2 98.6 98.7 98.9 98.9 99.0 99.2 99.' 99.GE 6U0 79.1 86.' 89.' 92.1 93.2 95.9 97.7 98.3 98.7 9818 90.0 99.0 99.1 99.1 99.6 99.6

GE 5009 79.1 86.' 89.' 92.1 95.2 95.9 97.8 98.6 98.9 99.0 99.2 99.2 99.3 99.6 99.8 99.8GE '009 79.3 86.' 89.' 4;2.1 95.2 95.9 97.9 98.7 99.0 99.3 99.3 99.3 99.' 99.7 99.9 99.9GE 3009 79.1 86.' 89.' 92.1 95.2 95.9 97.9 98.7 99.0 99.1 99.3 99.3 99.' 99.7 99.9 99.9GE 20C 79.1 86.' 89.' 92.1 95.2 95.9 97.9 98.7 99.0 09.1 99.3 99.1 99.' 99.7 99.9 99.9GE 1009 79.1 86.'. 89. 92.1 95.2 95.9 97.9 98.7 99.0 99.1 99.3 99.3 99.' 99.7 99.9 99.9

GE Cl 79.1 86.' 89.' 92.1 95.2 95.9 97.9 98.7 73° 99.1 99.! 99.3 99.'. 09.7 99.9 100.0

701AL NUMBER OF OBSERVATIONS: q00

-Sllml , , i ta -- ll E i]d._i I 1,d,.a I ...

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FRQUENCY OF OrCURRENCE OF CEILING 8FRSS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS



MONTH: JUN HOURStLSTI: 090C-1100...............................................................................::.............................................


IN IGE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET | 10 6 5 4 3 2 1/2 2 1 1/2 1 14 1 3/ 5/8 112 5/16 1/4 0

NO CEIL 1 45.3 46.4 46.8 47.2 48.0 48.0 49.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 4.0

GE 20OUCI 498.9 5C.1 50.6 51.1 52.3 52.3 52.4 S2.7 52.7 52.7 52.7 52.7 52.7 S2.7 52.7 52.76E 1800CI 49.4 50.7 51.1 51.7 52.9 52.9 53.0 53.2 53.2 53.2 53.2 53.2 53.2 !3.2 53.2 53.2GE 1600CI 49.4 5E.8 51.2 51.8 53.0 53.0 53.I 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3

GE 140001 50.2 51.6 52.0 52.6 53.8 53.8 53.9 54.1 hq.l 54.1 54.1 54.1 54.1 54.1 54.1 14.1GE 120001 52.1 53.8 54.2 54.9 56.1 56.1 56.2 S6.% 56.4 56.4 56.4 56.4 56.4 56.4 56.4 56.4

GE 100001 55.2 57.0 58.1 8.8 60.1 60.1 60.4 60.9 60.9 60.9 60.

9 60.9 60.9 6C.9 6P.9 60.9

GE 90001 56.4 58.2 59.3 60.0 61.3 61.3 61.7 62.1 62.1 62.1 62.1 62.1 62.1 62.1 62.1 62.1GE 80001 62.3 64.7 65.9 66.6 67.9 67.9 68.2 68.7 68.7 68.7 68.7 68.7 68.7 68.7 68.7 68.7GE 70001 63.7 66.2 67.8 68.4 69.9 69.9

70.3 70.8 70.8 70.8 7r.8 70.8 70.8 7c.8 70.8 7.8

GE 600C 65.0 67.8 69.8 70.4 71.9 71.9 72.7 73.2 73.2 73.2 7T.2 73.2 73.2 73.2 73.2 73.2

GE 50001 69.4 73.6 75.6 76.2 77.7 77.7 78.4 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0GE 48UC 73.6 78,3 80.4 81.1 82.7 82.7 83.6 84.3 84.1 84.1 84.1 84.1 84.1 84.1 84.1 84.1

GE 4OUCI 76.0 81.1 83.3 84.1 a5.9 85.9 86.8 87.3 87.3 37.3 87.3 07.3 87.3 87.3 87.3 87.3GE 35001 78.2 83.7 86.0 86.8 88.7 88.8 89.9 90.4 90.4 80.4 9C.4 90.4 90.4 90.4 90.4 90.4

GE 30001 81.9 88.0 90.4 91.4 94.0 94.2 95.3 95.9 95.9 96.0 96.0 96.0 96.0 96.0 96.0 96.0

GE 25001 82.2 88.4 91.1 92.1 95.1 95.3 96.4 97.1 97.1 97.2 97.2 97.2 97.2 97.2 97.2 97.2

GE 20001 82.3 98.6 91.2 92.4 95.7 95.9 97.2 97.9 97.9 98.0 98.0 98.0 98.0 98.0 98.0 98.0GE IUCI 82.3 88.7 91.3 92.6 95.8 96.0 97.3 98.0 98.0 98.1 9A.1 98.1 98.1 98.t 98.1 98.1GE 15001 82.6 88.9 91.7 93.1 96.3 96.6 97.9 98.7 98.7 98.8 98.8 98.8 98.8 98.8 98.8 96.8GE 12001 82-6 88.9 91.7 93.3 96.7 97.0 98.3 99.1 99.1 99.2 99.2 99.2 9V.

2 99.2 99.2 99.2

GE nOCI 82.6 88.9 91.7 93.3 96.7 97.0 98.3 99.2 99.3 99.4 99.4 99.4 99.4 99.4 99.4 99.4

GE 90ci 82.6 88.9 91.7 93.4 96.8 97.1 98.4 99.3 99.4 09.6 99.6 99.6 99.6 99.6 99.6 99.6

GE 8001 82.6 88.9 91.7 93.4 96.8 97.1 98.7 99.6 99.7 99.8 99.8 99.8 99.8 99.8 99.8 99.8GE 7001 82.6 98.9 91.7 93.4 96.8 97.1 98.7 99.6 99.7 99.8 99.8 99.8 99.8 99.8 99.8 99.8GE 6001 82.6 88.9 91.7 93.4 96.9 97.2 98.8 99.7 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9

GE SOCI 82.6 88.9 91.7 93.4 96.9 97.2 98.9 99.8 99.9 100.0 100.0 100.0 100.0 190.0 100.0 10.0

GE 4001 82.6 8e.9 91.7 93.4 96.9 97.2 98.9 99.8 99.9 iCO.0 10. 0 101.0 100.0 1C.0 100.0 110.0GE 3001 82.6 88.9 91.7 93.4 96.9 97.2 98.9 99.8 99.9 1lnO. o l0.0 1O0.0 100.0 100.0 12.0 100.0

GE 2)CI 82.6 88.9 91.7 93.4 96.9 97.2 98.9 99.8 99.9 110.0 107.0 0 100. 0 100.0 oo i00.O 100.0

GE IOCl 82.6 88.9 91.7 93.4 96.9 97.2 98.9 99.8 99.9 100.0 I20,. 100.0 100.0 100.0 100.0 10C.0

GE Cl 82.6 88.9 91.7 93.4 96.9 97.2 98.9 99.8 99.9 100.0 103.0 10C.0 100.0 I00-0 100.0 100.0


-- he.

3L

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISISILITY


All; EATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 Ny PEPIOD OF RECORD: 78-8?

MONTH: JUN HOURSILSII: 1200-140Q

CE 1.IE IILITY IN StATU1E RILES


FEET I to 6 5 9 3 2 1/2 2 1 1/2 1 1/4 1 314 5/8 112 5/16 1/4 0

. .........................................................................................................................

NO CEIL 1 39.2 41.1 41.6 42.1 42.3 42.3 42.4 42.4 42.4 42.4 42.4 92.4 42.4 42.4 42., 42.4

GE 200001 45.1 47.1 47.6 48.2 48.6 48.6 48.9 48.9 48.9 98.9 48.9 48.9 48.9 48.9 48.9 48.9

GE 180001 45.2 47.2 97.7 98.3 48.7 48.7 99.0 49.0 49.0 49.0 49.0 49.0 49.0 49.0 49.0 49.0

GE 160001 95.2 47.2 47.7 48.3 48.7 48.7 49.0 49.0 49.0 49.0 99.0 49.0 49.0 49.0 49.0 49.0

GE 1400CI 46.1 48.2 48.7 49.3 49.7 99.7 50.1 50.1 50.1 50.1 50.1 50.1 50.1 5C.1 50.1 50.1

GE 1200ci 47.4 50.0 50.4 51.1 51.9 51.6 52.0 52.0 52.0 52.0 52.0 52.0 72.0 $2.0 52.0 52.0

GE 300C 51.9 59.2 59.8 55.4 56.0 56.2 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8

GE 9 0

oC1 52.8 55-6 56.1 56.8 57.3 57.6 58.1 58.1 58.1 58.1 SA.) 58.1 58.1 58.1 58.1 58.1

GE 80n01 58.9 62.0 62.8 63.4 64.1 64.3 69.9 64.9 64.9 64.9 69.9 64.9 64.9 64.9 64.9 64.9

GE 70001 60.3 63.8 64.9 66.6 66.2 66.4 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0

GE 600C0 62.6 66.1 67.2 67.9 68.8 69.0 69.9 69.9 70.0 70.0 70.0 70.0 70.0 7C.0 70.0 70.0

GE 50001 69.1 73.8 75.8 76.6 77.6 77.8 79.0 79.0 79.1 79.3 79.3 79.3 79.3 79.3 79.3 79.3

GE 45001 73.3 78.6 80.7 81.7 82.7 82.9 84.2 84.2 84.3 84.6 84.6 84.6 84.6 84.6 84.6 84.6

GE 400C1 76.2 82.0 89.6 85.6 86.8 81.o 88.3 88.3 88.4 88.7 88.7 88.7 88.7 88.7 89.7 88.7

GE 350C1 79.4 85.8 88.3 89.4 90.7 90.9 92.2 92.2 92.3 92.6 92.6 92.6 92.6 92.6 92.6 92.6

GE 30001 82.9 85.6 92.4 93.7 95.6 95.8 97.1 91.2 97.3 97.6 97.6 97.6 97.6 97.6 97.6 97.6

GE 2501C 83.2 9C.0 93.0 94.2 96.2 96.4 97.8 97.9 98.0 98.2 98.2 98.2 98.2 98.2 982

98.2

GE 2OC0 83.4 90.4 93.6 94.8 96.8 97.0 98.3 98.6 98.7 98.9 99.9 98.9 98.9 98.9 98.9 98.9

GE I8otI 83.6 90.6 93.8 95.0 97.0 97.2 98.6 98.8 98.9 99.1 99.1 99.1 99.1 99.1 99.1 99.1

GE 15001 83.7 9C.8 94.0 95.3 97.3 97.6 98.9 99.1 99.2 99.4 99.4 99.4 99.4 99.4 99.9 99.4

GE 12001 83.7 9C.8 94.0 95.6 97.6 97.8 99.1 99.3 99.0 99.7 V9.7 99.7 99.7 99.7 99.7 99.7

,E loccl 83.7 9c.8 94.0 95.6 97.6 97.8 99.1 99.3 99.9 99.8 99.8 99.8 99.8 99.8 99.8 99.8

GE 900S 83.7 9C.8 94.0 95.6 97.6 97.8 99.1 99.3 99.4 99.8 99.8 99.8 99.8 99.8 99.8 99.8

GE 8001 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.4 99.6 100.0 1O0.O 100.0 1OO.O 100.0 100.0 iO0.OGE 7001 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.4 99.6 100.0 100.C 100.0 100.0 100.0 300.0 ICO.0

GE 6001 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.9 99.6 1O0.O 100.0 100.0 100.0 100.0 100.0 100.0

GE SOI 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.9 99.6 100.0 10M.0 100.0 lO.0 100.0 IO.0 100.0

GE 4c01 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.4 99.6 100.0 100.0 100.0 100.0 10.O 100.0 100.0GE 3001 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.4 99.6 100.0 100.0 100.0 l3c.0 100.0 100.0

GE 20C1 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.4 99.6 100.0 100.0 100.0 300.0 30C.0 100.0 IC0.0

GE IUO 83.7 90.8 94.0 q5.6 97.6 97.8 99.1 99.9 99.6 100.0 101.0 100.0 100.0 300.0 301.0 300.0

GE [1 83.7 90.8 94.0 95.6 97.6 97.8 99.1 99.4 99.6 10O.O i00.0 i00.0 i00.0 iOc.O 100.0 100.0...............................................................................................................................

OTAL NUMBER OF OBSERVATIONS: 900

A--

GLIBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSLRVAlIONS



MONTH: JUN HOURSILST): 1500-1700

CEILING VISIBILITY IN STATUTE MILESIN j GL CE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FLET I n 6 5 If 3 2 112 2 1 1/2 1 1/1 1 314 5/8 1/2 S/16 1/4 0

NO CEIL I 41.0 42.9 43.0 43.3 43.3 43.3 43.3 43.3 43.3 83.3 43.3 43.3 43.3 43.3 43.3 43.3

GE 200CI 47.0 '4.1 49.2 49.7 49.7 49.7 49.7 48 49.8 49.8 49.8 49.8 49.8 4.8 49.8 49.8GE I8OM 47.0 '49.1 49.2 49.7 49.7 49.7 49.7 49.8 49.8 49.8 49. '49.8 49.8 49.8 49.8 '49.8GE 1600C 1'47. 45.1 49.2 49.7 49.7 49.7 49.7 '49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8GE 140OC 47.4 49.6 49.7 50.1 90.1 50.1 50.1 Sa.2 50.2 50.2 50.2 SO.2 50.2 50.2 5o.2 50.2

GE 1200C '49.8 51.9 52.0 52.4 52.4 52.4 52.6 52.7 52.7 52.7 52.7 52.7 2.7 52.7 52.7 52.7

GE I0001 54.3 57.0 57.2 57.8 58.1 58.2 58.3 58.7 58.7 58.7 58.7 S8.7 58.7 58.7 58.7 96.7

GE 90001 54.6 57.2 57.6 S8.1 58.4 58.7 58.8 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1

GE BoaI 59.7 63.1 63.9 64.6 65.0 65.3 6S.4 65.9 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8

GE 70UCI 62.2 65.8 66.6 67.2 67.1 68.1 68.3 68.8 68.8 68.8 68.8 68.8 68.8 68.8 68.8 68.8GE 60001 65.2 69.1 70.1 70.9 71.4 11.9 7Z.2 12.7 72.9 73.1 73.1 73.1 73.1 73.1 73.1 73.1

GE 500CI 72.3 77.2 ?9.0 19.9 80.4 80.9 81.2 81.7 81.9 82.1 82.1 82.1 82.1 82.1 82.1 82.1GE 45001 76.8 82.1 84.1 95.0 85.8 86.2 86.6 87.0 87.2 87.4 87.,4 87.4 87.4 87.4 87.4 87.4GE 400CI 80.0 q6.2 88.7 89.7 90.7 91.1 91.4 91.9 92.1 92.3 92.3 92.3 92.3 02.3 92.3 92.3

GE 35OC 82.8 8 A. 91.9 92.9 94.1 94.6 94.9 95.3 95.6 95.8 958 95.8 99.8 9.8 95.8 95.8

E300C . 9 8.9 91.9 93.6 94.7 96.2 96.7 97.1 97.6 97.8 98.0 98.0 98.0 98.0 98.0 98.0 98.0

GE 2501C 84.0 91.3 94.0 95.1 96.7 97.1 97.6 98.3 98.2 98.4 98.4 98.4 98.4 98.4 9A.4 96.4GE 2OOCI 84.1 92.0 94.7 95.8 97.3 97.8 98.2 98.7 98.9 99.1 99.1 99.1 99.1 99.1 99.1 99.1

GE 18001 84.1 92.0 94.7 95.8 97.3 97.8 98.2 98.7 98.9 99.1 99.1 99.1 99.1 99.1 99.1 99.1

GE 10uc0 84.1 92.1 94.8 95.9 97.4 97.9 98.3 98.8 99.0 99.2 99.2 99.2 99.2 99.2 99.2 99.2

GE 12GCI 84.1 92.1 94.8 95.9 97.4 97.9 98.3 98.9 99.1 99.3 99.3 99.3 99.3 99.3 99.3 99.3

GE 10011 84.1 92.1 94.8 95.9 97.7 98.1 98.7 99.2 99.4 99.7 99.7 99.7 99.7 99.7 99.7 99.7GE 90C 84.1 92.1 94.8 95.9 97.7 98.1 98.7 99.2 99.4 99.7 99.T 99.7 99.7 99.7 99.7 99.7

GE 8C1 84.1 92.1 94.8 95.9 97.7 98.1 98.7 99.3 99.6 99.8 99.A 99.8 99.8 99.8

99.8 99.8

GE 7001 84.1 92.1 94.8 95.9 97.7 98.1 98.7 99.3 99.6 Q9.8 99.8 99.8 99.8 99.8 9Q.8 99.8GE 60CI 84.1 92.2 94.9 96.0 97.8 98.2 98.8 99.4 99.7 99.9 99.9 99.9 99.9 99.9 99.9 99.9

GE SUO 84.1 92.2 94.9 96.1 97.9 98.3 98.9 99.6 99.8 100.0 100.0 100.0 100.0 101.0 100.0 100.0GE 4UO 84.1 92.2 94.9 96.1 97.9 98.3 98.9 99.6 99.8 1410.0 1of?.0 100.0 100.0 1030.0 100.0 100.0GE 3001 84.1 92.2 94.9 96.1 97.9 98.3 98.9 99.6 99.8 lO.0 100.0 100.0 100.0 111.0 100.0 100.0

GE 2001 84.1 92.2 94.9 46.1 97.9 98.3 98.9 99.6 99.8 100.0 300.0 10.100.0 100.0 100.0 100.0

GE lOaf 84.1 92.2 94.9 96.1 97.9 98.3 98.9 99-6 99.8 100.0 100.0 IOC.0 100.0 100.0 100.0 100.0

GE OI 84.1 92.2 94.9 96.1 97.9 98.3 98.9 99.6 99.8 100.0 100.0 100.0 100.0 100.0 10.0 100.0. . .. . .. .. . .. . .. .. .... . . . . . . . . . . . ........ . ° , ... . .... .. ... .... . ... .. . .. ... , . .... .. ..

TOTAL NUMBER OF ORSERVATIONS: 9.0

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AI WEATHER SERVICE/MAC

STATION NUMBER: 726225 STAIICN NAME: PLATTSBURGH AFB Ny PEIOD Of RECORD: 7A-87

MONTH: JUN HOURSILSII: 1800-2000..... .... .... .... ... . . . . . . .. . . . . . ............................. ..................... ,.. °. 0i °0 °... . . .

CE ZL Z16 VISIBILITY 1N STATUTE MILESIN G GE GE GE GE GF GE GL GE GE GE GL GE GE GE GE GE

FEET i 0 6 5 4 3 2 1/2 Z 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CE/L 1 48.4 SE.7 51.0 52.1 51.3 51.4 51.8 51.8 51.8 51.8 51.8 51.8 51.9 51.9 51.9 51.9

I5 200001 52.8 55.3 56.0 56.1 56.3 56.4 56.8 56.8 56.8 56.8 56.8 56.8 56.9 56.9 56.9 56.9GE 180001 53.1 S5.7 56.3 56.4 56.7 56.8 5?.1 51.1 57.1 57.1 57.1

5 7.j 57o2 57.2 57.2 57.2

GE 1600CI 53.3 55.9 56.6 S6.7 56.9 57.0 57.3 57.3 57.3 57.3 57.3 57.3 57,. 57.4 57.4 57.4GE 14L01 53.R 56.4 57.2 57.3 .7.6 57.7 58.0 56-0 58.0 58.0 58.

0 58.0 58.1 58.1 58.1 58.1

GE 120001 55.9 56.6 59.7 59.9 60.1 60.2 60.6 60.6 60.6 60.6 67.6 60.6 60.7 60.7 60.7 60.7

GE 100001 59.7 63.2 64.4 64.8 65.1 65.3 65.7 65.9 65.9 65.9 6,.9 65.9 66.0 66.0 66.0 66.0GE 90001 59.9 63.4 64.8 65.1 65.4 65.7 66.o 66.2 66.2 66.2 66.2 66.2 66.3 66.3 66.3 66.3GE 80001 64.0 67.8 69.2 69.9 70.2 70.9 70.8 71.0 71.n 71.0 71.0 71.0 71.1 71.1 7].1 71.3

GE 700J1 64.9 66.9 70.3 71.0 71.4 71.7 72.0 72.? 72.2 72.2 72.2 72.2 12.1 72.3 72.3 7.3GE 60001 67.l 71.1 72.8 73.8 74.4 74.7 75.0 75.2 75.3 75.4 75.6 75.6 75.7 75.7 75.7 75.7

GE SoOCI 72.0 76.9 79.0 80.2 81.1 81.3 81.7 81.9 82.0 82.1 87.2 82.2 82.3 82.3 82.3 82.3GE 4SU0 76.8 81.9 84.0 85.2 86.1 86.3 67.0 87.3 87.6 87.7 87.8 87.8 87.9 87.9 87.9 87.9GE 40C00 79.9 85.9 88.4 89.8 90.8 91.D 91.9 92.3 92.6 92.7 92.8 92.8 92.9 92.9 92.9 92.9GE 35002 81.3 87.8 90.4 91.8 92.8 93.0 94.0 94.4 9%.7 94.8 94.9 94.9 95.0 95.0 95.0 95.

0GE 300CI 82.8 89.7 92.4 93.8 94.9 95.1 96.2 96.7 96.9 97.1 97.? 97.2 97. 97.3 97.3 97.3

GE 25001 82.9 9C.1 93.1 94.4 95.6 95.8 96.9 97.3 97.6 97.8 97.9 97.9 98.0 98.0 99.0 98.0GE 20001 83.3 90.7 93.7 95.0 96.1 96.4 97.6 98.0 98.7 98.4 9R.6 98.6 98.7 98.7 9A.7 98.7

GE ]OCI 83.3 9L07 93.7 95.0 96.1 96.1 97.6 98.0 98.2 98.4 9%.6 98.6 98.7 98.7 99.7 98.7GE 150C| 83.6 9C.9 93.9 95.3 96.4 96.b 98.0 98.6 98.8 99.0 99.1 99.1 99.2 99.2 99.2 99.2

GE 1200 83.6 9C.9 93.9 95.3 96.4 96.8 98.0 98.6 98.8 09.0 90.1 99.1 99.2 99.2 99.2 99.2

GE IUC 83.7 91.0 94.0 95.4 96.6 97.0 98.2 98.8 99.0 99.2 99.3 99.3 99.4 99.4 99.4 99.4

GE 90C 83.7 91.0 94.1 95.6 96.8 97.2 98.6 99.1 99.3 99.6 99.7 99.7 99.8 99.8 99.8 99.8GE 8001 83.7 91.0 99.1 95.6 96.8 97.2 98.6 99.1 99.3 99.6 99.7 99.7 99.8 99.

8 99.8 99.8

GE 70CI 83.7 91.0 94.1 q5.6 96.8 97.2 98.6 99.1 99.3 99.6 9Q.7 99.7 99.8 99.8 99.8 99.8

GE 6001 83.7 91.0 94.1 95.6 96.8 97.2 98.6 99.1 99.3 99.6 99.7 99.7 99.8 99.8 9q.8 99.8

GE 50CI 83.7 91.0 98.1 95.6 96.8 97.3 98.7 99.3 99.6 99.8 99.9 99.9 100.0 100.0 100.0 100.0GE 4001 83.7 91.0 94.1 95.6 96.8 97.3 98.7 99.3 99.6 99.8 99.9 99.9 100.0 100.0 100.0 100.0GE 3001 83.7 91.0 94.1 95.6 96.8 97.3 98.7 99.3 99.6 99.8 99.9 99.9 1O.0 10.0 100.0 100.0GE 20C1 83.7 91.0 94.1 95.6 96.8 97.3 9P.7 99.3 99.6 99.8 90.9 99.9 100.0 1P0.0 100.0 100.0

GE lOC 83.7 91.0 94.1 95.6 96.8 97.3 98.7 99.3 99.6 q9.8 99.9 99.9 100.0 100.O 100.0 100.0

6E Cl 83.7 91.0 94.1 95.6 96.8 97.3 98.7 99.3 99.6 99.8 99.9 99.9 100.0 200.0 100.0 100.0

TOTAL NUMBEP OF OBSERVATIONS: 930

Alm

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB My PERIOD OF RECORD: ?8-87MONTH: JUN HOURSILSTI: 2100-2300


IN I GE GE GE GE GE GF GE GE GE GE GE GE GE GE GE G1FLET I 10 6 5 4 3 2 112 2 I 112 1 1/4 1 3/4 58 112 5116 114 0

NO CEIL I 53.8 56.4 56.9 57.6 57.7 58.1 58.4 58.6 58.6 8.6 5.8 58.8 58.9 58.9 58.9 58.9

GE 200001 56.3 59.6 60.0 60.8 60.9 61.3 61.7 61.8 61.8 61.8 62.0 62.0 62.1 62.1 62.1 62.1GE 180001 56.4 59.7 60.1 60.9 61.0 61.4 61.8 61.9 61.9 61.9 62.1 62.1 62.2 62.2 62.2 62.2GE 1600CI 56.4 59.7 60.1 60.9 61.0 61.4 61.8 61.9 61.9 61.9 62.1 62.1 62.2 62.2 62.2 5.2

GE 140001 57.4 6f0.7 61.1 61.9 62.0 62.6 62.9 63.0 63.0 63.0 63.2 63.2 6S.3 63.3 63.3 63.3GE 120001 59.0 62.2 62.9 63.7 63.9 64.7 65.0 65.1 65.1 65.1 6 .3 65.3 6S.4 65.4 65.4 65.4

GE IO0013 61.1 64.9 65.7 66.4 66.7 67.4 67.8 68.1 68.1 68.1 68.3 68.3 68.4 68.4 68.4 6.4GE 9rOC 61.1 64.9 65.7 66.4 66.9 67.7 6R.0 68.3 68.3 68.3 69.6 68.6 68.7 68.7 6'.7 68.7

GE 8000C 66.9 7C.9 72.0 72.8 73.4 74.2 74.6 74.9 74.9 74.9 75.1 75.1 75.2 75.2 73.2 75.2

GE MUDl 68.3 72.8 73.9 74.7 75.3 76.1 76.4 76.8 76.8 76.8 77.0 77.0 77.1 77.1 77.1 77.1GE 60Uc 70.3 75.0 76.2 77.3 78.0 78.8 79.3 79.7 79.7 79.8 80.0 80.0 80.1 P0.1 80.1 P.1

GE 50001 79.9 81.0 81.2 82.3 83.2 84.0 84.6 84.9 84.9 q5.0 85.2 85.2 R5.3 85.3 8S.3 85.3GE 4SCI 79.1 85.1 86.4 87.6 88.6 89.3 90.0 90.3 90.3 90.'. 90.7 90.7 90.8 9C.8 90.8 9.8GE 40001 80.8 87.2 89.2 90.4 91.7 92.4 93.1 93.8 93.8 93.9 94.2 94.2 94.3 94.3 94.3 94.3

GE 35UCI 81.7 88.2 90.2 91.4 92.7 93.4 94.3 95.1 95.1 95.3 9S.8 95.8 95.9 95.9 95.9 95.9

GE 3000j 82.7 90.0 92.1 93.3 94.7 95.4 96.4 97.2 97.2 97.4 97.9 97.9 98.0 98.0 98.0 98.0

GE 25101 83.3 9C07 92.8 94.0 95.3 96.7 97.7 98.4 98.4 98.7 99.1 99.1 99.Z 99.2 99.2 99.2GE 200C 83.7 91.1 93.2 94.4 95.8 97.1 98.1 98.9 98.9 99.1 99.6 99.6 99.7 99.7 99.7 99.7GE 18oC0 83.7 91.1 93.2 94.4 95.8 97.1 98.1 98.9 98.9 99.1 99.6 99.6 99.7 99.7 99.7 99.7

GE 150CI 83.7 91.1 93.2 94.4 95.8 97.1 98.1 98.9 98.9 99.1 99.6 99.6 99.7 99.7 99.7 99.7

GE 12001 83.7 91.2 93.3 q4.6 95.9 97.2 98.2 99.0 99.0 99.2 99.7 99.7 99.8 99.8

99.8 99.8

GE 10001 83.0 91.3 93.4 94.7 96.0 97.3 98.3 99.1 99.1 99.3 99.8 99.8 99.9 99.9 99.9 99.9

GE 9C I 83.8 91.3 93.4 94.7 96.0 91.4 98.4 99.2 99.2 99.4 99.9 99.9 100.0 100.0 107.0 100.0

GE 8001 83.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2

99.4 99.9 99.9 100.0 12O.O 100.0 IOL.0GE 7001 83.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 100.0 100.0 103.0 100.0GE 601l 83.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 1013.0 100.0 iO0.O I00.0

GE SoCI 83.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 130.0 10.O 10..0 10C.0GE 40CI 83.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 100.0 10C.0 100.0 100.0GE 30C 87.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 100.0 100.0 i0.0 100.0

GE 20CI 83.8 91.3 93.4 94.7 96.0 97.4 98.9 99.2 99.2 99.4 99.9 99.9 100.0 100.0 100.0 100.O

GE 1o0l 83.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 100.0 100.0 102.0 103.0

GE ol C3.8 91.3 93.4 94.7 96.0 97.4 98.4 99.2 99.2 99.4 99.9 99.9 100.0 100.0 1O0.c 101.0

TOAL NUMBER OF OBSERVATIONS: 900

AML__

GLGBAL CLIMATOLOGY BrANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURG14 AFB Ny PERIOD OF RECORD: 78-87

MONTH: JUN HOURSILSTI: ALL

CE ILINGVSIIIYNSATTMLE

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFLEIT 10 6 5 N 3 2 112 2 1 112 1 114 I 3/4 5/8 112 5/16 11- 0

NO CElL 1 46.1 48.0 48.3 48.7 49.1 49.2 49.5 49.6 49.6 49.6 49.7 49.7 49.7 49.8 49.8 49.8

GE 2000I S0.1 52.3 52.7 53.2 53.7 53.9 59.2 54.3 54.3 54.4 5.4 54.4 54.5 54.5 54.6 54.6GE 18000 50.3 52.5 52.9 53.3 53.9 54.1 54.4 54.5 54.5 54.5 54.6 54.6 54.7 54.7 54.8 54.8GE 1600C| 50.3 52.5 53.0 S3.4 53.9 54.1 54.4 54.6 54.6 54.6 54.7 54.7 54.7 54.8 54.8 54.8GE 1400C 51.2 53.4 53.8 54.3 54.8 55.0 55.3 55.5 55.5 55.5 55.6 55.6 55.6 55.7 S5.7 55.7GE 120001 52.9 55.3 55.8 56.3 56.8 57.1 57.5 ST.1 57.7 577 57.8 57.8 57.8 57.9 57.9 57.9

GE 1OLOJ~ 56.8 59.7 60.4 61.0 61.b 61.9 62.4 62.7 62.7 62.7 62.8 62.8 62.8 62.9 62.9 62.9GE 900CI 57.4 6C.3 61.1 61.6 62.3 62.7 63.1 63.4 63.4 63.4 63.S 63.5 63.6 63.6 63.7 63.7GE 800C 62.6 65.9 66.9 67.6 6b.4 68.8 69.3 69.5 69.5 69.5 69.6 69.6 69.7 69.7 69.q 69.8GE 7U001 64.4 67.9 69.G 69.8 70.6 71.0 71.5 71.8 71.8 71.8 71.9 71.9 72.0 72.0 72.1 72.1GE 600CI 66.6 70.3 71.7 72.7 73.6 74.0 74.7 75.0 75.1 75.2 75.3 75.3 75.3 75.4 75.4 75.4

GE 50OCI 71.9 76.4 78.2 79.3 80.3 80.8 81.5 81.8 81.9 82.0 82.1 82.1 42.2 02.2 82.3 82.3GE 45011 76.1 81.2 83.2 84.3 85.5 85.9 86.8 87.1 87.2 87.3 87.4 E7.4 87.4 P7.5 87.5 87.5GE 4noc 77.4 84.3 86.6 87.9 89.2 89.6 9O.5 90.9 91.3 91.1 91.2 91.2 91.3 91.3 91.4 91.4(.E 35001 80.3 86.4 88.9 90.2 91.8 92.2 93.2 93.6 93.7 93.8 94.0 94.0 94.0 94.1 94.1 94.1GE 30C01 82.0 88.6 91.2 42.7 94.6 95.1 96.2 96.6 96.7 96.8 97.0 97.0 97.0 97.1 97.1 97.1

GE 2501| 82.3 99.1 71.8 93.3 95.3 95.9 97.0 97.5 97.6 97.7 97.8 97.8 97.9 98.0 94.0 98.0GE 20oci 8z.5 89.4 92.2 93.7 95.8 96.5 97.8 98.2 98.3 98.5 98.6 98.6 98.7 98.8 98.8 98.8GE 18011 82.5 89.4 92.3 93.8 95.9 96.6 97.8 98.3 98.4 98.6 98.7 98.7 98.8 98.8 98.9 96.9bE 15001 82.6 89.6 92.4 94.0 96.1 96.8 98.0 98.5 98.7 98.8 99.0 99.0 99.1 99.1 99.2 99.2GE 120CI 82.7 85.6 92.5 94.1 96.2 96.9 98.2 98.T 98.8 99.c 99.2 99.2 99.3 99.3 99.4 99.4

GE 10CI 82.7 89.7 92.6 94.2 96.3 97.1 98.4 98.9 99.1 99.3 99.4 99.4 99.5 99.5 99.6 99.6GE 9001 82.7 89.7 92.6 04.2 96.4 97.1 98.5 99.0 99.2 99.3 99.5 99.5 99.6 99.6 99.7 99.7GE 8011 82.7 85.7 9i.6 94.2 96.4 97.1 98.5 99.1 99.2 q9.4 99.6 99.6 99.7 99.7 99.8 99.8GE 70C1 82.7 89.7 92.6 94.2 96.4 97.1 98.5 99.1 99.2 09.4 99.6 99.6 99.7 99.7 99.8 99.8GE 6011 82.7 89.7 92.6 94.3 96.4 97.2 98.6 99.1 99.3 99.5 99.7 9 .7 99.7 99.8 9'.8 99.8

GE S001 82.7 89.7 92.6 94.3 96.4 97.2 98.6 99.3 99.4 99.6 99.8 99.8 99.8 99.9 99.9 99.9GE NOc 87.7 89.7 92.6 94.3 96.4 97.2 98.6 99.3 99.4 99.6 )9.8 99.8 99.9 99.9 100.0 100.0GE 30C1 82.7 8S.7 92.6 94.3 96.4 97.2 98.6 99.3 99. Q9.6 99.8 99.8 99.9 99.9 300.0 I00.0GE 20C1 82.7 89.7 92.6 94.3 96.4 97.2 98.6 99.3 99.4 99.6 99.8 99.8 99.9 99.9 100.0 100.0GE IOCI 82.7 89.7 92.6 94.3 96.N 97.7 98.6 99.3 99.4 99.6 99.8 99.8 99.9 Q9.9 100.0 100.0

GE Cl 82.7 89.7 92.6 94.3 96.4 97.2 9P.6 99.3 99.4 99.6 99.8 99.8 99.9 99.9 100.0 100.0

TO.........AL.........NUMBER....................OF.........ORSERVATIONS......: 7200.........................................


c__

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFEIAC FROM HOURLY OBSERVATIONS

AI1 WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: pLATTSBURGH AF8 NY PERIOD OF RECORD: 78-87MONTH: JUL HOURSILSTI: 0000-0200

CEILING VISIPILITY ON STATUTE MILES

1I I GE GE GE GE GE GE GE GE GE GE GE GL rE CE GE GEFLET I 10 6 5 4 3 2 1/2 2 1 112 1 1/9 1 3il 5/8 112 5/16 1/4 0

................................................................................................................................

NO CEIL 1 5".1 55.9 62.2 62.3 62.6 62.9 62.9 63.0 61.0 63.0 6!.O 63.0 63.3 63.0 6 .0 63.0

GE 200001 62.0 64.1 66.3 66.5 66.8 67.1 67.1 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2

GE 180001 62.0 64.1 b6.3 66.5 66.8 67.1 67.1 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2GE 1600C 62.n 64.1 66.3 66.5 66.8 67.1 67.1 67.2 67.? 67. 67.2 617 67.2 61.2 617 .2

GE l4nOc 62.3 64.3 66.6 66.7 67.2 67.5 67.5 67.6 67.6 67.6 67.6 67.6 67.6 67., 67.6 67.6

GE 1200al 64.2 66.3 68.7 68.9 69.6 69.9 69.9 70.0 70.0 70.0 70.0 7C.0 70.0 70.O 70.0 7U.0

GE 100OCI 68.7 71.2 73.9 74.1 75.1 75.4 75.9 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5

GE 90U01 69.6 72.0 79.7 74.9 75.9 76.2 76.2 76.3 76.3 76.3 76.3 76.3 76.3 76.3 76,3 76.3GE 8o01 73.1 75.8 78.7 78.9 79.9 80.2 80.2 80.6 80.6 80.6 80.6 8G.6 80.6 80.6 80.6 80.6GE 7TUC1 74.9 78.0 80.9 81.1 82.9 82.8 87.8 83.2 83.2 R3.2 83.2 83.2 83.2 3.2 83.2 83.2bE 600CI 77.2 8e.5 83.9 83.7 84.9 85.4 85.4 85.8 85.8 8 85.8 89.8 85.8 85.8 A5.8 85.8 5.8

GE 500Co 79.9 83.8 87.1 87.3 88.7 89.2 89.2 89.8 89.8 89.8 89.9 89.8 89.8 F5.8 8Q.8 89.8GE 450C0 81.3 85.8 89.2 89.6 91.2 91.7 91.7 92.3 92.3 92.3 92.3 92.3 97.3 92.3 92.1 92.3

GE 4001 82.7 87.3 90.8 91.1 92.7 93.2 93.2 94.0 94.0 94.0 94.0 94,0

94.0 99.0 94.0 94.0

CE 350CI 83.8 88.6 92.0 92.4 99.0 94.6 94.6 95.5 95.5 95.5 95.6 95.6 95.6 95.6 95.6 Q5.6

GE 3000 84.3 89.2 92.7 93.0

95.1 95.8 95.9 9b.9 96.9 96.9 97.1 97.1 97.1 97.1 97.1 97.1

GE 25001 84.4 85.4 92.9 93.3 95.4 96.1 96.2 97.2 97.2 97.2 97.4 97.4 97.5 97.5 97.5 97.5

GE 200C1 89.4 89.5 93.0 93.4 95.8 96.6 96.7 97.6 97.6 97.6 97.8 91.8 98.0 98.0 98.0 98.0GE 1800 84.5 89.6 93.1 93.7 96.0 96.8 96.9 91.8 97.8 97.8 98.1 98.1 98.2 98.2 98.2 98.2GE 15001 84.5 89.6 93.4 94.0 96.3 97.1 97.2 98.2 98.2 Q8,2 98.4 90.4 98.5 98.5 9q.5 98.5GE 120CI 84.5 85.7 93.7 94.2 96.6 97.3 97.4 98.4 98.4 98.9 98.6 98.6 98.7 98.7 98.7 98.7

GE 1OC 84.5 85.7 91.8 94.3 96.8 97.5 97.6 98.6 98.6 98.6 98.8 98.8 98.9 98.9 93.9 98.9GE 90c0 84.5 89.7 93.8 94.3 96.8 97.5 97.6 98,6 98.6 98.6 98.8 98.8 98.9 98.9 98.9 98.95

E 80C 89.5 85.7 93.8 94.3 96.8 97.5 97.6 98.6 98.6 98.6 9P.8 98.8 98.9 08.9 9 .9 98.9GE 7001 89-5 89.7 93.8 94.3 96.8 97.5 97.6 98.6 98.6 98.6 9P.8 98.8 98.9 98.9 99.9 Q8.9GE 6UCI 84.5 85.7 93.8 94.3 96.8 97.5 97.6 98.6 98.8 98.8 99.0 99.0 99.1 99.1 9 99.1

GE SGOI 84.5 89.7 93.8 94.3 97.0 97.7 97.8 98.8 99.0 99.0 99.2 99.2 99.5 99.5 99.5 99.5GE 40c1 89.5 85.7 93.8 94.3 97.3 98.1 98.2 99.1 99.4 99.9 99.6 99.6 99.8 99.8 99.8 99.8GE 3UCI 84.5 85.7 93.8 94.3 97.3 98.1 98.2 99.1 99.4 99.4 99.6 99.6 99.8 99.8 99.8 99.8

GE 2UC1 84.5 89.7 93.8 99.3 97.3 98.1 98.2 99.1 99.9 99.4 99.6 99.6 99.9 99,9 99.9 99.9GE l1c0 89.5 89.7 93.8 94.3 97.3 98.1 98.1 99.2 99.5 99.5 99.7 99.7 100.0 IC.0 100.0 10L.0

GE CI 89,.5 5.7 93.8 94.3 97.3 98.1 98.3 99.2 99.5 09.5 99.7 99.7 100.0 10C.0 100.0 100.0

TOTAL i.UMBER OF OBSERVATIONS: 930

Alk- Aft

GLIBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

Alr WEATHER SERWICE/MAC

STATION NUMBER: 72622S STA1ICN NAME: PLATTSBURGH ArB NY PERIOD OF RECORD: 78-87MONTH: JUL HOURSILST). 0300-0SOD

CE ILIN VISIBILITY IN SIATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE RE GE GE GE GE GE

FLET I 10 b 5 4 3 2 1/2 2 1 112 1 114 1 3/4 518 1/2 5116 1/4 0

NO CEIL 1 52.6 54.3 55.9 57.1 57.7 57.7 58.1 58.1 58.1 58.1 S ! 5 58. I. 58.2 !8.2 58.2 58.2

GE 200001 56.1 58.2 60.0 61.4 62.0 62.0 62.4 62.4 62.4 62.4 62.4 62.4 62.5 62.5 62.5 62.5GE 1800CC 56.1 58.2 60.0 RI.4 62.0 62.0 62.4 62.4 62.4 62.4 62.4 62.4 62.5 62.5 62.5 62.5GE 1600C1 56.2 SA.3 60.1 61,5 62.2 62.2 62.5 62.5 62.5 62.5 62.5 62.5 62.6 62.6 62.6 62.6

GE 1400CI 57.4 59.7 61.5 62.9 63.7 63.7 64.0 64.0 64.0 64.0 64.0 64.0 64.1 64.1 64.1 64.1

GE 120001 60.3 62.6 64.6 66.1 67.0 67.0 67.3 67.3 67.3 67.3 67.3 67.3 67.4 67.4 67.4 67.4

GE 100001 67.6 70.0 72.6 74.1 74.9 74.9 75.3 75.3 75.3 75.3 75.3 75.3 75.4 75.4 75.4 75.4

GE 900CI 68.2 7C.5 73.3 74.a 75.7 75.7 76.0 76.0 76.0 76.0 76.0 76.0 76.1 76.1 76.1 76.3GE 8GCJ 70.9 73.2 76.2 77.8 79.0 79.0 79.4 79.4 79.4 79.4 79.4 79.4 79.5 79.5 79.5 79.5

GE 70001 72.9 75.3 78.6 80.3 81.5 81.5 81.8 81.8 81.8 81.8 81.8 81.8 81.9 81.9 A1.9 61.9

GE 60U01 74.7 77.3 80.8 82.6 B4.1 84.1 84.4 84.4 84.4 84.5 84.5 84.5 84.6 84.6 84.6 84.6

GE SOCI 76-7 79.2 83.5 95.5 87.5 87.5 87.8 87.8 87.8 88.0 88.0 88.0 88.1 98.1 89.1 88.1

GE 45LE1 78.5 81.3 85.6 07.5 89.7 89.7 90.0 90.0 90o.0 90.1 9!.1 9C.1 9n.2 90.2 90.2 9C,2ZE 4rOC| 80.8 94.0 88.5 90.4 93.0 93.0 93.4 93.4 93.4 93.5 93.5 93.5 93.7 93.7 93.7 93.7GE 3500I 81.6 85.2 89.9 91.8 94.4 94.4 94.8 94.8 9 4 .8 94.9 94.9 94.9 95.1 95.1 95.1 95.1

GE 300C1 81.9 85.6 90.5 92.5 95.2 95.2 95.6 95.6 95.6 95.7 95.7 95.7 95.8 95.8 95.8 95.8

GE 25001 82.7 86.6 91.b 93.7 96.3 96.3 96.8 96.9 96.9 97.0 97.0 97.0 97.1 97.1 97.1 97.1

GE 2000i 82.9 87.3 92.4 94.4 97.3 97.3 97.7 98.0 98.0 98.1 98.1 98.1 99.2 9a.2 98.2 98.2GE 19001 82.9 87.4 92.5 94.5 97.4 97.4 97.8 98.1 98.1 98.2 98.2 98.2 98.3 98.3 98.3 98.3GE 15001 82.9 87,4 92.6 94.6 97.5 97.5 98.0 98.2 98.2 08.3 9.3 98.3 98.4 98.4 94.4 98.4GE 12001 82.9 97.4 92.6 94.6 97.5 97.5 98.0 98.2 98.3 98.4 98.4 98.4 98.5 98.5 98.5 98.5

GE 10G0 1 82.9 81.4 92.7 94.7 97:6

97.6 98.1 98.3 98.4 98.5 99.5 98.5 98.6 98.6 99.6 98.6GE 9001 82.9 87.4 92.7 94.7 97.7 97.7 98 98 98.5 98.7 9.7 98.7 98.8 98.8 9R.8 98.8GE 8001 82.9 87.4 92.7 94.7 97.7 97.7 98.2 98.4 98.5 98.7 98.7 98.7 98.8 98.8 99.8 98.8GE 7001 82.9 87.4 92.7 94.7 97.7 97.7 98.2 98.4 98.5 98.7 9p.7 98.7 98.8 98.8 98.8 96.8GE 600 82.9 87.4 92.7 94.7 97.7 97.7 98.2 98.4 98.7 99.3 99.2 99.2 99.4 99.4 99.4 99.4

GE 50cl 82.9 87.4 92.7 94.7 98.3 98.3 98.7 9d.9 99.? 79.7 99.8 99.8 99.9 99.9 99.9 99.9

GE 4001 82.Q 87.4 92.7 94.7 98.4 98.4 98.8 99,0 99.4 99.8 99.9 99.9 100.0 1C00. 103.0 ICC.0GE 7001 82.9 87.4 92.7 94.7 98.4 98.4 99.8 99.0 99.4 99.8 99.9 99.9 100.0 100.0 100.0 100.0UE 2001 87-.0 7.4 92.7 94.7 98.4 98.4 98.8 99.0 99.4 99.8 99.9 99.9 100.0 10C.0 107.0 100.0GE 1U7 i 82.9 87.4 92.7 94.7 98.4 98.4 98.8 99.0 99.4 99.8 99.9 99.9 100.0 1rC.0 100.0 100.0

GE El 82.9 87.4 92.7 94.7 98.4 98.4 98.8 99.0 99.4 99.8 99.9 99.9 100.0 100.0 100.0 300.0

I01AL NUMBER OF O8SFRVATIONS: 930

* -_



STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: ?8-67MONTH: JUL HOURSILST): 0600-08O0


1N N GL GE GE GE GE GE GE GE GE GE GE 6E GE GE GE GE0 FLET I 10 6 5 4 3 2 1/2 z 1 112 1 14 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 1 48.5 S5.4 52.3 54.0 54.8 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9

GE 200001 54.4 56.6 S.9 60.9 61.7 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8GE 180001 54.5 56.7 59.0 61.0 61.8 61.9 61.9 61.9 61.9 61.9 61.9 61.9 61.9 61.9 63.9 61.9GE 160001 54.7 56.9 59.2 61.2 62.0 62.2 62.2 62.2 62.? 62.2 62.2 62.2 62.2 62.2 62.2 62.2

GE 14000 56.8 59.0 61.4 63.4 64.3 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4

GE 120001 59.7 62.3 65.1 67.2 68.1 68.2 68.2 68.2 68.2 68.2 68.2 68.2 68.2 68.2 68.2 68.2

GE IOO0CE 63.1 61.1 70.0 72.2 73.2 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 77.3 73.3

GE 90001 63.7 67.6 70.5 72.7 73.8 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9GE 80001 69.6 74.0 77.1 19.6 80.9 81.0 81.0 81.1 81.0 P1.0 81.0 81.0 81.0 81.0 81.0 81.0GE 700C 1 72.2 76.7 80.0 92.5 83.8 83.9 84.0 84.0 84.2 84.2 84.2 84.2 84.2 94.2 84.2 84.2

GE 600C1 73.1 78.1 81.8 84.3 85.7 85.8 85.9 85.9 86.1 96.1 86.1 86.1 86.1 86.1 86.1 86.1

GE 50001 74.9 8C.2 84.4 87.0 89.1 89.2 89.4 89.4 89.6 89.6 89.6 89.6 89.6 89.6 89.6 89.6GE 45011 76.5 82.3 86.7 89.4 91.6 91.7 91.8 91.8 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0

GE 40001 78.3 84.2 88.b 91.5 94.5 94.6 94.7 94.7 94.9 94.9 94.9 94.9 94.9 94.9 94.9 94.9

GE 35001 79.5 ?5.4 89.8 92.7 95.8 95.9 96.0 96.0 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2

SE 30001 80.2 86.2 90.6 93.7 96.9 97.0 97.1 97.1 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97,3

GE 25001 80.4 86.5 90.9 93.9 97.1 97.2 97.3 97.3 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5GE 200C 80.9 97.1 91.5 94.5 97.7 97.8 98.0 98.) 98.2 98.2 98.2 98.2 98.2 98.2 9A.2 96.2GE 18CI 81.0 81.2 91.6 94.6 97.8 98.0 98.1 98.1 98.3 98.3 98.7 98.3 98.3 98.3 98.3 9b.3

GE IsoCi 81.0 97.3 91.8 94.8 98.2 98.3 98.4 98.4 98.6 98.6 9A.6 98.6 98.6 98.6 98.6 98.6GE 12001 81.0 87.4 91.9 94.9 98.3 98.4 98.6 98.6 98.8 98.8 99.8 98.8 98.8 98.8 9e.

8 98.8

GE 10C 81.0 81.4 91.9 94.9 98.3 98.4 99.6 98.6 98.9 99.0 99.n 99.0 99.0 99.0 99.0 99.05E 9001 81.0 97.4 91.9 94.9 98.3 98.4 98.6 98.6 98.9 99.0 99.0 99.0 99.

0 99.0 99.0 99.0C: ! *I. R7.4 91.9 94.9 98.3 98.4 98.6 9d.6 98.9 99.

0 99.0 99.0 99.0 99.0 99.' 99.

GE 7003 81.0 87.4 92.0 95.1 98.4 9 8 .5 98.7 98.7 99.0 99.1 99.1 99.1 99.1 99.1 99.1 99.1GE 60CI 81.0 87.4 92.0 95.1 98.4 98.5 98.7 98.8 99.1 99.2 99.2 99.2 99.2 99.2 99.2 99.2

GE SOO 81.0 87.4 92.3 95.3 98.9 99.0 99.2 99.4 99.7 99.8 99.P 99.8 99.8 99.8 99.8 99.8

GE 4U01 81.0 81.4 92.3 95.3 98.9 99.0 99.2 99.4 99.7 99.8 99.8 99.8 99.9 99.9 99.9 99.9GE 3001 81.0 87.4 92.3 95.3 98.9 99.0 99.2 99.4 99.7 99.8 99.8 99.8 99.9 99.9 99.9 95.9GE 2001 81.0 87.4 92.3 95.3 98.9 99.0 99.2 99.4 99.? 99.8 99.8 99.8 100.0 iE.O lo0.0 100.0GE loci 81.n 87.4 92.3 95.3 98.9 99.0 9o.2 99.4 99.7 99.8 99.8 99.8 100.0 llG.0 100.0 100.0

GE Cl 81.0 87.4 92.3 95.3 98.9 99.0 99.1 99.4 99.7 99.9 99.8 99.8 300.0 100.0 100.0 100.0


*_

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURQENCE OF CEILING VFRSUS VISIRILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLAT7SBURGH AF9 Ny PERIOD OF RECORD: 78-87

MONTH: JUL HOURSILST): 0900.I1no

CE ILING VISIBILITY IN STATUTE MILESIN IGE E GE GE GE GE GE GE GE GE GE GE 6E GE GE GE

FEET 1 10 6 5 9 3 2 112 2 1 112 1 119 1 3/4 5/8 112 516 1/1 0

NO CEIL I '.9.0 51.8 53.3 59.7 56.3 56.3 56.5 56.5 56.5 56.5 S6.5 56.5 56.5 56.5 $6.5 56.5

GE 200001 59.5 57.5 59.2 6U.8 62. 62.4 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5

GE 18000) 59.6 57.b 59.9 60.9 62.5 62.5 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6

GE 1600CI 59.6 57.6 59.9 60.9 62.5 62.5 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6GE 190001 55.7 58.7 60.9 61.9 63.5 6305 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7

GE 320001 58.5 61.8 69.1 65.7 67.9 67.9 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6

6E 100001 61.9 65.2 67.6 69.2 71.0 71.0 71.6 71.6 71.6 71.6 71.6 71.6 21.6 71.6 71.6 71.6

6E 90001 62.9 66.1 68.6 70.2 71.9 71.9 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6GE 80001 68.0 72.9 75.1 77.2 78.9 78.9 79.6 79.6 19.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6GE 7OOCI 69.5 79.3 77.5 79.8 81.6 81.7 82.9 82.9 82.9 82.9 82.4 82.9 82.9 82.9 82.9 82.9

UE 600C1 70.2 75.9 78.6 81.0 82.9 83.0 83.7 83.7 83.7 83.7 83.7 83.7 83.? 83.7 83.7 83.7

GE 50001 72.0 77.9 80.9 83.3 85.6 85.7 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3

GE 95001 79.2 8C.2 89.0 86.8 89.9 89.5 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1 9n.1 90.1

GF 90001 7 5 82.6 86.6 89.9 92.3 92.9 93.0 93.0 93.0 93.0 91.0 93.0 93.0 93.0 93.0 93.0

GE 350C1 78.5 89.8 88.9 91.8 95.1 95.2 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8

GE 3DC0 79.0 86.2 90.5 93.5 96.8 96.9 97.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7

GE 2SOC 79.9 86.6 90.9 93.9 97.1 97.2 98.1 98.1 98.1 98.1 98.1 98.1 98.1 98.1 99.1 96.1

GE 20001 79.5 86.7 91.0 99.0 97.3 97.9 98.3 98.9 98.9 98.9 98.9 98.4 98.9 98.' 98.9 98.9GE 18001 79.5 86.7 91.0 99.0 97.3 97.9 98.3 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9bE 15001 79.5 86.7 91.1 99.1 97.9 97.5 98.9 98.5 98.9 98.5 98.5 98.5 98.5 98.5 99.5 98.5

GE 120O1 79.6 86.9 91.3 99.3 97.6 97.8 98.7 98.8 98.8 98.8 90.8 98.8 98.8 980.8 98.8 98.6

GE 10001 79.6 86.9 91.5 99.5 98.0 98.2 99.0 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.3

GE 9001 79.6 86.9 91.7 99.7 98.2 98.9 99.2 99.9 99.9 o9.9 99.9 99.9 99.9 99.9 99.9 99.9

GE 80cl 79.6 86.9 91.8 95.1 98.5 98.7 99.6 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7GE 70CI 79.6 86.9 91.8 95.1 98.5 98.7 99.7 99.8 99.8 99.8 99.8 99.8 99.R 99.8 99.8 99.8GE 6oC| 79.6 86.9 91.8 95.i 98.5 48.7 99.7 100.0 100.0 100.0 10C.0 100.0 100.0 100.0 i10.0

GE SUCI 79.6 96.9 91.8 95.1 98.5 98.7 99.7 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0GE 900C 79.6 86.9 91.8 95.1 98.5 98.7 99.7 100.0 100.0 100.0 100.0 100.0 100.0 100.0 loo.0 100.0cE 3001 79.6 86.9 91.8 95.1 98.5 98.7 99.7 103.0 100.0 100.0 100.0 300.0 100.0 100.0 100.0 10.0

GE 2OC1 19o6 86.9 91.8 95.1 98.5 98.7 99.7 100.0 100.0 ico.O 1o.O 100. 0 10.0 3e0.0 100.0 I00.0GE t0c 79.6 86.9 91.8 95.1 98.5 98.7 99.7 100.0 100.0 iO.0 3o0.o 3O0.O 300.0 10.O i00.0 1O.O

GE El 79.6 86.9 91.8 95.1 98.5 98.7 99.7 100.0 3O0.0 100.0 100.0 300.0 100.0 100.0 103.0 100.0


0

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVIIONS


STATION NUMBER: 72622b STATICh NAME: PLATTSBURGH AFS Ny PERIOD OF RECORD: 78-87MONTH: JUL HOURSILSTI: 1200-140o

CElING VISIBILITY IN STATUTE MILES

IN I GE 6E GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 8 3 2 1/2 2 1 112 1 1/4 1 31% 58 112 5/16 1/4 0

NO CEIL 16.5 48.5 49.0 49.6 50.8 50.8 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6

GE 20000c 51.5 53.8 58.3 58.8 56.0 56.0 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2GE 180001 51.5 53.8 54.3 58.8 56.0 56.0 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2GE 160002 51.5 S5.8 58.3 5.$ 56.0 56.0 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2GE iOOCI 53.2 55.8 56.5 57.0 58.3 58.3 58.5 58.5 50.5 58.5 5B.5 58.5 58.5 S8.5 58.5 58.5

GE IZOOCI 55.9 5B.B 59.9 60.4 61.9 62.3 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5

GE 100OCI 59.6 62.6 68.1 64.7 66.2 66.6 66.9 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0

GE 90002 60.1 63.8 68.7 65.4 66.9 67.2 67.5 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6

GE 80001 65.1 69.2 7D.5 71.2 72-9 73.2 73.5 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7GE 70001 66.6 71.1 72.7 73.5 78.8 75.7 76.0 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1

GE 60001 67.6 72.3 73.9 75.2 17.0 77.3 77.6 77.7 77.7 77.7 77.7 77.7 77.7 71.7 77.7 77.7

GE 5000 71.8 76.9 78.8 80.2 82.8 82.7 83.0 03.1 83.1 P3.1 83.1 83.1 83.1 03.1 83.1 F3.1f GE 450CI 78.1 79.9 82.5 88.2 86.5 86.8 87.1 87.2 87.2 87.2 87.2 87.2 87.2 87.2 87.2 872

GE 40001 78.6 88.7 07.7 89.7 92.2 92.5 92.9 93.0 93.0 93.0 93.0 93.0 93.1 93.1 93.1 93.1

GE 35001 80.3 86.6 89.7 91.6 94.3 98.6 95.1 95.3 95.3 95.3 95.3 95.3 95.1 5.4 95.8 95.8

GE 300C1 81.8 88.6 91.7 93.7 96.6 96.9 97.8 97.6 97.6 97.6 97.6 97.6 97.7 97.7 97.7 97.7

GE 250C 81.8 88.6 91.7 93.7 96.6 97.0 97.5 97.8 97.8 97.8 97.8 97.8 98.0 98.0 98.O 96.0GE 20UC 81.9 88.7 92.0 98.0 96-9 97.8 98.0 98.8 98.8 98.8 98.8 98. 98.5 98.5 98,5 98.5GE 18001 82.8 89.2 92.7 98., 97.5 98.1 98.6 99.0 99.0 99.0 99.0 99.0 99.1 99.1 99.1 99.1GE 15001 82.8 89.8 93.0 98.9 97.8 98.8 98.9 99.5 99.5 99.5 9-.6 99.6 99.7 99.7 99.7 99.7GE 1200I 82.4 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.7 99.0 99.8 99.9 99.9 99.9 99.9

GE 1002 82.8 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.7 99.8 99.8 99.9 99.9 99.9 99.9

GE 90c0 82.8 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.7 99.8 99.8 99.9 99.9 99.9 99.9

GE g00 82.8 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.7 99.0 99.8 99.9 99.9 99.9 99.9GE 7002 82.8 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 09.7 99.8 99.8 99.9 99.9 99.9 99.9

GE 6602 82.8 89.8 93.1 95.1 9A.1 98.6 99.2 99.7 99.7 99.7 99.8 99.8 99.9 99.9 99.9 99.9

GE 51sua 82.8 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.0 99.9 99.9 200.0 100.0 200.0 100.0

GE 802 82.4 09.8 93.1 45.1 98.1 98.6 9-.1 99.7 99.7 99.8 90.9 99.9 100.0 100.0 100.0 100.0GE 30C 82.0 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.8 99.9 09.9 100.0 100.0 100.0 IOC.0GE 20C 82.8 89. 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.8 99.9 99.9 100.0 100.0 100.0 100.0

GE 1002 82.# 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.8 99.9 99.9 100.0 10o.0 100.0 100.0

GE Cl 82.8 89.8 93.1 95.1 98.1 98.6 99.1 99.7 99.7 99.8 90.9 99.9 100.0 100.0 100.0 100.0

701L NUMBER OF OBSERVATIONS: 930

GLCBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VrRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATISBURGH 8FB My PERIOD OF RECORD: 78-6?MONTH: JUL HOURS(LSTI: 1500-17D0

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET 10 6 S q 3 2 112 2 1 1/2 1 1JI 3 3/4 5,8 112 Il6 1/8 0..... ... . . . .. . w ... . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . ............... e, ee... . . .• ..... ....

NO CEL 1 47.2 88.8 88.9 9.8 89.5 49. 5 49.5 49.s 49.5 49.5 9.5 49.S 49.5 49.5 49.5 '9.5

GE 200001 55.2 56.8 57.5 58.2 58.6 58.6 58.7 58.7 58.7 58.7 e-? 58.7 58.7 58.7 58.7 58.7GE 180001 55.3 56.9 57.6 s8.1 58.8 58.8 58.9 58.9 58.9 56.9 58.9 58.9 58.9 58.9 5R.9 58.9GE 16000 55.3 57.0 57.7 58.5 58.9 58.9 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.n 59.0GE 140001 56.2 58.1 58.8 59.6 60.0 60.0 60.1 60.1 60.2 60.1 60.1 60.1 60.1 60.1 60.1 60.1GE 120c01 59.7 61.8 62.7 63.8 68.2 61.1 64.2 64.2 68.2 68.2 68.2 68.2 68.2 68.2 64.2 68.2

GE )OO0 68.1 66.8 67.6 68.: 69.0 69.1 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2GE 9000 6.9 67.7 68.6 69.6 70.2 70.3 70.8 70.8 70.8 70.8 70.8 70.8 70.4 70.8 7?.8 70.8GE 800 69.7 73.1 78.8 75.6 76.2 76.3 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6GE 70001 72.7 75.2 76.5 77.6 78.5 78.6 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8GE 60001 72.9 76.6 77.8 79.1 80.0 80.1 80.8 80.8 80.8 80.8 80.8 80.8 80.8 80.8 80.8 so.8

GE SOU0I 77.2 81.7 83.3 88.6 86.0 86.1 86.7 86.7 86.7 86.7 86.7 86.7 86.7 86.7 86.7 86.7GE 85001 79.9 88.9 87.0 88.3 89.9 90.0 90.9 90.9 90.9 90.9 90.9 90.9 90.9 90.9 90.9 90.9GE 80oc 82.0 87.7 90.0 91.8 93.2 03.3 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9GE 35001 82.8 88.2 90.8 91.9 93.9 94.0 95.6 95.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7

GE 3000) 83.5 89.8 91.7 93.2 95.7 95.8 97.5 97.6 97.6 97.6 97.6 91.6 97.6 91.6 97.6 97.6

GE 25001 83.5 89.8 91.7 93.2 95.7 95.8 97.5 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.6GE 2000 88.0 89.9 92.8 93.9 96.3 96.5 98.2 98.3 98.4 98.8 98.8 98.8 98.8 98.8 98.8 98.8GE 180CI 88.8 9C.3 92.8 99.3 96.8 96.9 98.6 98.7 98.8 98.8 91.8 98.8 98.8 98.8 98.8 98.8GE 15001 88.6 90.5 9,0 98.5 97.0 97.3 99.0 99.1 99. 2 99 99.2 99.2 99.2 99.2 99.2 99.2GE 12009 88.6 90.5 93.0 9.S 97.0 97.3 99.0 99.2 99.8 99.8 99.8 99.8 99.8 99.8 99.8 99.8

GE 1OOC 88.6 90.5 93,0 98.5 97.0 97.3 99.0 99.2 99.8 99.8 99.8 99.8 99.8 99.8 99. 99.8

GE 900l 88.6 9C.5 93.0 99.5 97.0 97:3 99.0 99.2 99. 9 99 99.8 99. 99.8 99* 99.8 99.8GE 800a 88.6 90.6 97.1 98.6 97.3 9.0 99.7 99.9 200.0 100.0 200.0 200.0 100.0 100.0 200.0 100.0

GE 7009 88.6 90.6 9.1 98.6 97.3 97.0 99.7 99.9 100.0 100.0 D9. 100.0 100.0 100.0 100.0 100.0GE 6009 8l.6 9.6 93.1 94.6 97.3 98.0 99.7 99.9 100.0 200.0 100.0 100.0 100.0 100.0 100.0 100.0

GE 5001 84.6 90.6 93.1 98.6 97.3 98.0 99.7 99.9 100.0 200.0 200.0 100.0 00.0 100 100. 100.0GE 8009 88.6 9&.6 93.1 98.6 97.3 98.0 99.7 99.9 100.00 00 100.0 100.0 100.0 1000 100.0 100.0GE 3002 88.6 90.6 93.1 98.6 97.3 98.0 99.7 99.9 100.0 100.0 100.0 100.0 100.0 10O.0 200.0 100.0

GE 2002 88.6 9C.6 93.1 94.6 91.3 98.0 99.7 99.9 100.0 100.0 200.0 10c.0 100.0 230.0 100.0 100.0

GE 100 88.6 90.6 93.1 98.6 97.3 98.0 99.7 99.9 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

GE cl 88.6 90.6 93.1 98.6 97.3 98.0 99.7 99.9 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0


MI

GLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FfOM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATISBURGH AFS NY PEDIOD OF RECORD: 78-87

MONTH: JUL HOURSILSI): 1800.2000E;...............................................................................:.............................................

CE ILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 s 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5,8 1/2 5/16 1/4 0

NO CEIL 1 51.6 52.9 53.5 83.7 54.1 54.1 54.1 54.1 S4.1 84.1 54.1 54.1 54.2 ;Q.l 54.1 54.1

GE 200001 57.5 59.6 60.2 60.3 61.0 61.0 61.1 61.3 61.3 61.3 61-3 61.3 61.3 61.3 61.3 61.3

GE 180001 50.0 6C.0 60.6 60.8 61.4 61.4 61.7 61.1 61.7 61.7 61.7 61.7 61.7 61.7 62.7 61.7

GE 1600CI 58.0 6C.0 60.6 60.8 61.4 61.4 61.7 61.7 61.T 61.7 61.7 61.7 61.7 61.7 61.7 61.7

GE 140001 58.5 60.5 61.4 61.5 62 .2 62.2 62.5 62. 62.5 62.5 62.5 62.5 62.5 62.5 62.S 62.5

GE I200C1 61.4 64.0 64.9 65.1 65.7 65.9 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.1 66.3 66.3

GE 103CI 65.8 68.6 69.9 70.2 70.9 71.1 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5

GE 900C1 66.5 69.2 70.9 71.2 71.8 72.0 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5

GE BOUCI 71.0 74.7 76.8 77.3 78.1 78.3 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 76.8GE 700C1 72.7 76.8 78.8 79.4 80.1 80.3 80.9 80.9 80.9 80.9 80.9 80.9 80.9 80.9 80.9 80.9GE 6001 74.1 18.5 80.5 1.1 81.9 82.2 82.7 82.7 82.7 82.7 87.7 82.7 82.7 82.7 82.7 82.7

GE SOOCI 77.1 42.0 84.7 85.7 86.9 87.1 88.2 88.3 88.4 88.4 88.4 88.4 88.4 88.4 88.4 8i.4GE 45001 79.4 84.3 87.1 88.2 89.4 89.7 90.9 91.2 91.3 91.3 91.3 91.3 91.3 91.3 91.3 41.3GE 40001 82.* 88.0 91.0 92.2 93.3 93.8 95.2 95.5 95.6 95.6 9S.6 95.6 9S.6 95.6 95.6 9b6

GE 3S001 82.7 88.3 91.3 92.S 93.7 94.1 95.6 95.9 96.0 96.0 96.0 96.0 96.0 96.0 96.0 96.0GE 30001 83.4 89.0 92.2 93.9 95.6 96.0 97.! 97.8 98.0 98.0 98.0 98.0 98.0 98.0 90.0 98.0

GE 250C1 83.4 89.1 92.3 94.0 95.7 96.1 97.6 98.0 98.1 98.1 98.1 98.1 98.1 98.1 98.1 98.1GE 20UCI 83.5 89.6 92.7 94.4 96.3 96.8 98.3 98-6 98.7 98.7 98.7 98.7 98.7 98.7 98.7 98.7

GE IUI 83.7 89.7 92.8 94.5 96.5 96.9 98.5 98.8 98.9 98.9 9m.9 98.9 98.9 98.9 94.9 98.9GE 1500I 83.7 89.9 93.1 94.8 96.9 97.3 99.1 99.6 99.7 09.8 99.8 99.8 99.

8 99.8 99.8 49.8

GE 12001 83.7 89.9 93.1 94.8 96.9 97.3 99.1 99.6 99.7 99.8 99.8 99.8 99.8 99.8 99.8 9.8

GE IoOCI 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.7 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9GE 90C1 83.7 84.9 93.1 94.8 96.9 97.3 99.2 99.7 99.e 99-9 90.9 99.9 99.9 99.9 99.9 99.9

GE Roo 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.7 99.8 99.9 99.9 99.9 99.9 19.9 99.9 99.9

GE 7001 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.7 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9

GE 6001 83.7 89.9 93.1 99.8 96.9 97.3 99.2 99.7 99.8 99.9 90,9 99.9 99.9 99.9 99.9 99.9

GE 5001 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.8 99.9 1 0.0 100.0 100.0 100.0 00.0 20(3.0 .lOGGE 4001 83.7 49.9 93.1 94.8 96.9 97.3 99.2 99.8 99.9 100.0 10(3.0 100.0 100.0 300.0 100.0 100.0GE 3001 83.7 88.9 93.1 94.8 96.9 97.3 99.2 990 99.9 100.0 100.0 100.0 100.0 100.0 100.0 I20.0GE 20CI 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.8 99.9 100.0 100.0 100.0 100.0 Ic.0 100.0 100.0

GE 1001 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.8 99.9 130.0 101.0 200.0 100.0 100.0 100.0 100.0

GE Cl 83.7 89.9 93.1 94.8 96.9 97.3 99.2 99.8 99.9 100.0 13(.0 100.0 100.0 100.0 100.0 100.0


*

2 GLLBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FkO HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATICN NAMEa PLATTSBURGH AF8 Ny PEPIOD OF RECORD: 78-87MONTH: JUL HOUR5ILSTI: 210C-230O

IN i GE GE GE GE GE GE GL GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 9 3 2 112 2 1 112 1 1/4 1 1/4 518 I/Z 5116 1/9 0

NO CEIL 1 55.3 56.9 58.1 58.3 58.7 58.8 58.8 58.9 58.9 58.9 58.9 58.9 58.9 58.9 58.9 58.9

GE 200001 58.5 6c.6 61.8 62.0 62.6 62.7 62.7 62.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9

2 GE l8O0CI 58.7 6C.9 62.0 62.3 62.0 62.9 62.9 63.1 63.1 63.1 63.3 63.1 63.1 63.1 63.1 63.1GE 160001 58.7 6C.9 62.0 62.3 62.8 62.9 62.9 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1

GE 190001 59.6 61.8 63.0 63.2 63.8 63.9 63.9 69.1 64.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1GE 1200OC 62.0 69.6 65.9 66.3 67.0 67.1 67.1 67.5 67.5 67.5 67.5 67.5 67.5 67.5 67.5 67.5

GE 100001 67.2 7C.2 71.7 72.2 72.9 73.0 73.1 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5

GE 90001 67.8 7C.9 72.5 72.9 73.7 73.8 73.9 79.3 76.3 79.3 79.3 74.3 76.3 74.3 74.3 74.3GE 80001 72.4 76.3 78.2 78.6 79.9 80.0 80.1 80.5 80.5 80.5 80.5 8.5 80.5 80.5 80.5 80.5

GE 70001 79.2 78.3 80.6 81.2 82.5 82.6 82.7 83.1 83.1 83.1 81 83.1 83.1 83.1 83.1 P3.1

GE 60001 76.3 8.9 83.0 83.5 89.8 85.1 85.2 80.6 85.6 85.6 85.6 85.6 85.6 85.6 85.6 85.6

GE 50001 81.2 86.1 88.8 89.9 90.8 91.3 91.9 92.2 92.2 92.2 92.2 92.2 92.2 92.2 92.2 92.2

GE 45COI 82.6 87.7 90.9 91.0 92.6 92.8 93.3 96.1 99.1 9%.1 99.1 99.1 99.1 94.1 96.? 96.1GE 90001 89.0 89.2 92.0 92.6 94.3 99.6 95.2 95.9 95.9 95.9 95.9 95.9 95.9 95.9 95.9 95.9GE 35001 84.6 9C.1 92.9 93.9 95.2 95.5 96.2 97.0 97.0 97.0 97.0 97.0 97.0 97.0 97.0 97.0

GE 3000 85.1 9C.5 93.5 91.2 96.1 96.6 97.3 98.1 98.1 98.1 99.3 98.1 98.1 98.1 99.1 98.1

GE 25001 85.1 9C.5 93.5 94.2 96.1 96.6 97.3 98.1 98.1 98.1 98.1 98.1 98.2 08.2 90.2 96.2

GE 200CI 85.2 9C.6 93.7 99.3 96.3 96.8 97.5 98.3 98.3 98.3 9F.3 98.3 98.9 98.9 9R.9 96.9GE 18001 85.2 9C.6 93.7 99.3 96.5 96.9 97.6 98.9 98.9 98.9 99.6 98.9 98.5 98.5 98.5 98.56E 15001 85.2 90.9 93.9 94.6 96.9 97.5 98.3 99.0 99.0 99.2 90.2 99.2 99.9 09.6 99.6 99.6GE 12001 85.2 91.2 99.2 99.9 97.2 98.0 98.7 99.5 99.5 99.7 99.7 99.7 99.8 99.8 99.8 99.8

GE 1oc0 85.2 91.2 94-2 99.9 97.3 98.1 98.8 99.6 99.6 99.8 99.8 99.8 99.9 99.9 99.9 99.9

GE 9001 85.2 91.2 99.2 99.9 97.3 98.1

98.8 99.6 99.6 99.8 99.8 99.8 99.9 99.9 99.9 99.9

GE 8001 85.2 91.2 99.2 99.9 97.3 98.1 98.8 99.6 99.6 99.8 99.8 99.8 99.9 99.9 99.9 99.9GE 700

I 85.2 91.2 94.2 99.9 97.3 98.1 98.8 99.6 99.6 99.8 99.8 99.8 99.9 99.9 99.9 99.9

GE 60cl 85.2 91.2 99.2 99.9 97.9 98.2 98.9 99.7 99.7 99.9 99.9 99.9 100.0 100.0 10n.0 100.

GE 5001 85.2 91.2 96.2 99.9 97.9 98.2 98.9 99.7 99.7 99.9 99.9 99.9 100.0 1r0.0 300.0 IC0.0

GE 4001 85.2 91.2 99.2 94.9 97.4 98.2 98.9 99.7 99.7 99.9 99.9 99.9 100.0 300.0 100.0 100.0

GE 3130 85.2 91.2 96.2 99.9 97.9 98.2 98.9 99.7 99.7 999 99.9 99.9 100.0 100.0 100.0 100.0GE 20CI 85.2 91.2 99.2 99.9 97.9 98.2 98.9 99.7 99.7 99.9 99.9 99.9 100.0 100.0 100.0 100.0G E 10Cl 85.2 91.2 99.2 99.9 97.9 98.2 98.9 99.7 99.7 99.9 99.9 99.9 100.0 100.0 100.0 100.0

GE Cl 85.2 91.2 99.2 99.9 97.9 98.2 9m.9 99.7 99.7 99.9 99.9 99.9 300.0 130.0 100.0 100.0

.............................................................................................................................................


Ih

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURVENCE OF CEILING VERSUS VISIBILITYUSAFETAC FkOM HOURLY OBSERVATIONS

AIF WEATHER SERVICEIMAC

STATION NUMBER: 726225 STA00 NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-B7

MONTH: JUL HOURSILS11: ALL

CEILING VISIBILITY IN SEATUf I LESIN GE GE GE GE SE GE ,E 5E GE GE GE

1E GE GE GE GE

* I FEET 10 6 5 8 3 2 1/2 2 1 112 1 118 1 3/N 518 112 5/16 1/4 0

NO CEIL 1 51.1 52.9 54.2 54.9 55.5 55.6 55.7 5S.7 55.7 55.7 5,.7 55.7 55.7 5 5 .7

5,.7 55.7

GE 200001 56.2 58.4 59.8 60.6 61.4 61.5 61.6 61.6 61.6 61.6 61.6 61.6 61.6 61.6 61.6 61.6C> GE IBOOCI 56.3 58.5 59.9 60.7 61.5 61.6 61.7 61.8 61.p 61.8 61 P 61.8 61.8 61.8 61.R 61.8

GE 1600CI 56.4 58.6 60.0 60.8 61.6 61.6 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.6

GE 140001 57.5 59.7 61.2 62.0 62.9 62.9 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 b3.1 63.1

GE 120001 60.2 62.8 64.5 65.4 66.3 66.5 66.6 66.7 66.7 66.7 66.7 66.7 66.7 66.7 66.7 66.7

GE 100GC 68.7 61.7 69.7 70.6 71.7 71.8 72.0 72.1 72.1 72.1 72.1 72.1 72.1 72.1 72.1 72.1

GE 90001 65.8 68.5 70.5 71.5 72.5 72.6 72.9 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0GE 80001 69.9 73.6 75.9 77.0 78.2 78.4 78.6 78.8 78.8 78.8 78.R 78.8 78.8 78.8 7R.8 78.8GE 70UCI 71.8 75.7 78.2 79.8 80.7 80.9 81.2 81.3 81.3 I.3 81.3 81.3 81.3 81.3 81.3 81.35 GE 60U01 73.3 77.8 80.0 81.3 82.7 82.9 83.2 83.3 83.3 83.3 83.3 83.3 83.3 93.3 83.3 63.3

GE 50001 76.4 80.9 88.0 85.8 87.1 87.3 87.8 87.9 88.0 88.0 88.0 8B.0 88.0 88.0 8R.0 86.0GE 850 78.7 83.3 86.6 88.1 90.0 90.2 90.7 90.9 91.0 91.0 91.0 91.0 91.3 91.0 91.0 91.0

GE 8C 80.6 86.0 89.8 91.0 93.2 93.8 98.1 94.3 98.8 98.8 98. 98.8 98.8 9q.8 91:. 98.8GE 35C 1 81.7 87.1 90.6 92.3 98.5 98.8 95.5 95.8 95.8 95.8 9S.8 95.8 95.8 95.8 95.8 95.8GE 300C1 82.4 88.1 91.7 93.5 96.0 96.3 97.0 97.3 97.8 97.4 97.4 97.8 97.8 97.4 97.8 97.4

GE 2500 B2.6 88.3 91.9 93.7 96.3 96.5 97.3 97.6 97.7 97.7 91.7 97.7 97.8 97.8 97.8 97.8GE 200C 82.8 88.7 92.3 94.1 96.8 97.1 97.8 98.2 98.2 98.3 98.3 98.3 98.3 98.3 98.3 96.3GE 1800 82.9 88.8 92.5 98.3 97.0 97.3 98.L 98.4 98.5 98.5 98.5 98.5 98.6 98.6 98.6 96.6GE 150C 83.0 89.0 92.7 98.b 97.3 97.6 98.8 98.8 98.9 98.9 99.0 99.0 99.0 99.0 9Q.0 99.

0

GE 12UCI 83.0 89.0 92.9 98.7 97.8 97.8 98.6 99.0 99.1 99.1 99.2 9 99.2 99.2 99.? 99.2

GE 1l0O 83.0 89,0 97.9 98.1 97.5 97.9 98.7 99.1 99.2 99.2 99.3 99.3 99.3 99.3 9Q.3 99.3

GE 9LC0 83.0 89.0 92.9 98.8 97.5 97.9 98.7 99.1 99.2 99.3 99.3 99.3 99.4 Q9.4 99.8 99.8

GE 8003 83." 88.1 93.0 98.8 97.6 98.0 98.9 99.3 99.3 99.8 99.5 99.5 99.5 99.5 99.5 99.5GE 7001 83.0 89.1 93.0 98.8 97.6 98.1 98.9 99.3 99.4 99.8 90.5 99.5 99.5 99.5 99.5 99.5GE 60C 83.0 89.1 93.0 98.8 97.6 98.1 98.9 99.3 99.5 99.6 99.6 99.6 99.7 99.7 99.7 99.7

6E 5s01 83.0 89.1 93.0 94.9 97.8 98g2 99.1 99.5 99.7 99.8 90.8 99.8 99.9 99.9 99.9 99.9

GE NUlC 83.0 88.1 93.0 98.9 97.8 98.3 99.1 99-6

99.7 99.8 99.9 99.9 100.0 Icc-O 100-0 100.0GE 3001 03.0 88.1 93.0 98.9 97.8 98.3 99.1 99.6 99.7 Q9.8 99.9 94.9 100.0 10C.0 107.0 1oc.0

GE 2003 83.0 89.1 93.0 98.9 97.8 98.3 99.1 99.6 99.7 99.8 99.9 99.9 100.0 30c.0 100.0 100.0

GE 1003 83.0 89.1 93.0 98.9 97.8 98.3 99.1 99.6 99.7 99.8 9Q.9 99.9 100.3 10C.0 300.0 100.0

GE 01 83.0 89.1 93.0 98.9 97.8 98.3 99.1 99.6 99.7 99.8 99.9 99.9 100.0 100.0 100.0 100.0

....................................................................................................................................................


-- A

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FhOM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 7Z6225 STATICN fAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87

MONTH: AUG HOURSILSI): 0000-0200

CE IL 16VSINIYINS UTGIE

IN I GE GE GE GE GE GE GL GE GE GE GE GE GE GE GE GE

FEET I 19 6 5 8 3 2 1/2 2 1 112 1 114 1 T/1 5/8 1/2 /b16 1/1 0

NO CEIL I 51.3 52.7 53.4 58.0 58.5 54.6 55.1 55.3 55.3 55.3 5c.3 55.3 55.3 55.3 55.3 55.3

GE 200001 55.1 56.7 57.8 58.3 58.5 58.6 59.0 59.2 59.2 59.2 59.2 59.2 59.2 59.2 59.2 59.2

GE 18o0CI 55.2 56.8 57.5 58.1 58.6 58.7 59.1 59.45 59.4 59.8 59.8 58.8 59.8 59.8 59.8 59.8

GE 160001 55.2 56.8 57.5 58 1 58.6 58.7 59.1 59.8 59.4 59.8 59.8 59.4 59.4 59.8 ;Qq 59.4

GE 140001 55.5 57.1 58.2 58.7 59.2 59.8 59.8 60.0 60.0 60.0 60.0 60.0 60.0 6L.0 60.0 60.0GE 120001 56.5 58.6 59.7 60.Z 60.8 60.9 61.3 61.5 61.5 61.5 61.5 tl.o 61.5 61.5 61.5 61.5

GE 100001 58.2 61.0 62.9 63.8 68.6 68.7 65.2 65.4 65.4 65.8 65.8 65.8 65.8 65.8 65.4 65.4

GE 901301 58.9 61.9 68.0 68.8 65.7 65.8 66.2 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5GE 800O 63.8 67.2 69.7 70.6 71.5 71.6 72.2 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5

GE 7C001 b5.2 69.5 7.0 15.0 78.1 78.2 74.7 75.1 75.1 75.1 75.1 75.1 75. 75.1 7S.1 75.1

GE 60001 60.1 73.0 75.8 76.8 77.8 78.0 78.5 78.8 78.8 78.8 78.8 78.8 78.8 78.8 7R.8 76.8

GE 5DQ0| 70.9 76.0 79.2 80.8 81.6 81.8 82.8 82.7 82.7 82.7 82.7 82.7 82.7 92.7 82.7 P2.7GE 85001 78.1 79.5 82.7 88.0 85.8 85.7 86.2 86.6 86.6 86.6 86.6 86.6 86.6 86.6 86.6 86.6GE 400Ci 75.9 82.8 86.6 87.8 90.3 91.0 91.7 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0

GE 35001 76.8 83.2 87.5 98-9 91.6 92.3 93.0 93.3 93.3 93.3 93.3 93.3 93.3 q3.3 33.3 93.3GE 30001 78.0 88.8 89.2 90.8 93.7 94.3 95.1 95.8 95.8 05.8 95.8 95.4 95.8 95.8 95.8 95.8

GE 250C 78.1 85.1 89.7 91.3 98.3 98.9 95.9 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2GE 200CI 78.4 85.8 90.2 91.9 95.1 95.9 97.1 97.8 97.8 97.8 97.8 97.4 97.8 97.8 97.8 97.8GE 18001 78.4 85.8 90.2 91.9 95.1 95.9 97.1 97.8 97.8 97.8 97.8 97.8 97.8 93.8 97.4 97.8GE 1SOC I 78.6 85.6 90.5 92.3 95.7 96.6 98.0 98.5 98.5 98.5 98.S 98.5 98.5 98.5 98.5 98.5GCE 120I 7A.7 85.7 90.6 92.8 96.0 96.9 98.3 98.8 98.8 98.8 9P.8 98.8 98.8 98.6 9A.8 98.8

GE 10001 73.7 85.7 90.6 92.8 96.2 97.1 98.5 99.0 99.0 99.0 99,0 9.0 99.0 99.0 99.0 09.0

GE 9Jol 78.7 85.7 90.6 92.4 96.2 97.1 98.5 99.0 99.0 99.C 99.0 9 9.0 99.0 [ 99.0 99.0

GE aCrI 78.7 85.7 90.6 92.8 96.2 97.1 98.5 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.1GE 73 1 78.7 85.7 9n.8 92.5 96.3 97.2 98.6 99.2 99.2 99.2 99.2 99.2 99.2 99.2 99.2 99.2

GE 630 78.7 85.7 90.8 92.5 96.8 97.6 99.0 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7

E SGI 78.7 85.7 90.8 92.6 96.9 97.7 99.1 99.8 99.8 99.0 99.9 99.9 99.9 99.9 99.9

99.9

GE 0c1 78.7 85.7 90.8 92.6 96.9 97.7 99.1 99.8 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9GE 3003 78.7 95.7 93.6 92.6 97.0 97.8 99.2 99.9 99.9 100.0 100.0 100.0 100.0 100.0 101.0 IOU.0

GE 20CI 78.7 85.7 90.8 92.6 97.0 97.8 99.2 99.9 99.9 100.0 100.0 30C.0 100.0 10C.O 100.0 IC0.0

GE 1001 7R.7 85.7 90.8 92.6 97.0 97.8 99.2 99.9 99.9 100.0 10n.0 100.0 100.0 100.0 100.0 300.0

GE El 78.7 85.7 90.8 92.b 97.0 97.8 99.2 99.9 99.9 100.0 100.0 100.0 100.0 103.0 100.0 300.0


GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATONSAIR wEAlHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME. PLATTSBURGH AFB NY PEPIOD OF RECORD: 78-87

MONTH: AUG HOURSILSTI: 0300-0500

CEILING VISIBILITY IN STATUTE MILES1N I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I in 6 5 4 3 2 1/2 2 1 1/2 I 11% 1 T/4 5/8 it? 5/16 2/Q 0

NO CEIL 1 52.5 5s.5 55.6 56.0 56.1 56.6 56.8 57.1 57.2 57.2 57.2 57.2 57.2 57.2 57.2 57.2

GE 200001 55.6 58.1 59.1 59.9 6U.0 60.4 60.8 61.1 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2GE 180UOI 55.8 58.3 59.4 60.1 60.2 60.6 61.0 61.3 61.4 61.4 61.9 61.4 61.4 61.4 61.4 61.4GE 1600C0 55.8 58.3 59.4 60.1 60.Z 60.6 61.0 61.3 61.4 61.4 61.4 61.4 61.4 61.9 61.4 61.9GE I%00Cj 56.6 59.0 60.1 61.0 61.2 61.6 62.0 62.4 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5GE 12OCI 58.2 61.0 62.0 62.9 63.1 63.7 64.1 64.4 64.5 64.5 64.5 69.5 64.5 64. 64.5 64.5

GE I1000I 61.2 64.2 65.6 66.9 67.8 68.9 68.8 69.1 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2GE 900C 61.5 69.6 66.2 67.5 68.6 69.1 69.6 69.9 70.0 70.0 7'.c 7C.0 70.0 70.0 7,.

0 70.0

GE 80OCI 64.9 68.2 69.9 71.8 73.2 73.9 74.3 74.8 74.9 74.9 74.9 74.9 74.9 74.9 74.9 74.9GE 70OC1 65.9 65.4 71.9 73.5 75.2 75.9 76.3 76.9 77.0 77.0 77.0 77.0 /T.0 77.0 77.0 77.0GE 60001 67.7 71.6 73.9 76.1 78.2 78.9 79.4 79.9 80.0 80.0 80.0 60.0 80.0 80.0 80.0 80.0

GE 50001 69.6 74.2 76.8 79.0 81.3 82.0 82.5 83.0 83.1 A3.1 83.1 83.1 83.1 P3.1 83.1 83.1GE 9SUCI 72.S 77.3 79.9 82.9 85.3 86.2 87.0 87.5 87.6 87.6 87.6 87.6 87.6 97.6 87.6 87.6GE OC1 74.3 79.6 82.2 84.7 88.6 89.9 90.9 91.9 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5GE 35001 74.9 8C.9 83.1 85.9 89.9 91.2 92.3 92.8 92.9 93.0 9t.0 93.0 93.0 93.0 93.0 93.0GE 30ci 76,5 82.0 89.9 87.7 92.0 93.3 94.4 94.9 95.1 95.2 95.2 95.2 95.2 95.2 95.2 95.2

GE 25001 76.6 82.2 85.3 88.1 92.6 93.9 95.1 95.6 95.7 95.8 95.9 95.8 95.8 95.8 95.8 95.8GE 20001 76.6 8$.2 85.4 68.2 93.0 94.3 95.8 96.3 96.5 96.6 96.6 96.6 96.6 96.6 96.6 96.6GE 18001 76.8 82.4 85.7 88.5 93.3 94.6 96.1 96.7 96.8 96.9 96.9 96.9 96.9 96.9 96.9 9b.9GE 150C) 76.9 82.5 85.9 88.7 93.

5 94.8 96.5 97.0 97.1 47.2 97.2 97.2 97.2 97.2 97.2 97.2GE 120C1 77.0 82.6 86.3 89.1 99.0 95.3 96.9 97.4 97.5 97.6 97.6 97.6 97.6 97.6 97.6 97.6

GE 1001 77.0 82.7 86.5 89.5 94.4 95.7 97.3 97.8 98.0 98.1 98.1 98.1 98.1 98.1 96.1 98.1GE 90 l 77.n 62.7 86.5 89.5 94.6 95.9 97.5 98.1 98.2 98.3 96.3 98.1 98.3 98.3 98.3 98.3GE 8GC0 77.0 82.8 86.6 q9.6 94.8 96.2 98.0 98.5 98.7 98.8 9q.8 98.8 98.8 98.8 98.8 98.8GE

7U01 77.0 82.8 86.6 89.6 94.8 96.2 98.0 98.5 98.7 98.8 98.6 98.8 98.8 98.8 98.8 98.8

rE 6001 77.0 92.8 86.6 89.6 95.2 96.6 98.3 98.9 99.I 99.2 99.2 99.2 99.2 99.2 99.2 99.2

GE 5001 77.0 82.8 86.6 89.6 95.2 96.6 98.5 99.4 99.6 99.8 99.8 99.8 99.8 99.8 99.8 99.8GE 4U01 77.0 82.8 86.6 89.6 95.2 96.6 98.5 99.4 99.6 99.9 90.9 99.9 99.9 99.9 99.9 99.9GE 3001 77.0 82.8 86.6 89.6 95.2 96.6 98.s 99.4 99.6 99.9 .101.0 100.0 100.0 100.0 103.0 100.0GE 2001 77.

0 82.8 86.6 89.6 95.2 96.6 98.5 99.4 99.6 99.9 1o.0O 100.0 100.0 100.0 203.0 100.0GE 101 77.0 81.8 86.6 89.6 95.2 96.6 96.5 99.9 99.6 99.9 luf.0 100.0 100.0 Ic.0 100.0 100.0

GE C[ 77.0 8s.8 86.6 89.6 95.2 96.6 98.5 99.4 99.6 99.9 100.0 100.0 100.0 100.0 l0.0 100.0

................................................................................................................................................

TOTAL NUMBER OF OBSCRV&TTOhS: 930

6.

GLESAL CLIMATOLOGY BRANCH pERCENTAGE FREQUENCY OF OCCUROENCE OF CEILIN6 VERSUS VISIBILITYUSAFETAC FkOM HOURLY OBSERVATIONSAIR WEATHER SERVICL/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: 78-87

MnNTH: AUG HOURS(LSl): 0600-0800...............................................................................::.............................................

CE ILING VISIBILITY IN STATUTE MILESIN j GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE LE

FLET I in 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 I1/ 0

NO CEIL I %7.6 SC.8 52.2 53.1 53.4 53.5 53.9 53.9 53.9 53.9 57.9 53.9 53.9 53.9 53.9 53.9

GE 2zou0 l 51.5 54.7 56.6 57.6 58.2 58.3 58.6 58.6 58.6 58.6 58.6 58.6 58.6 58.6 58.6 58.6

GE 180001 51.7 55.1 56.9 58.0 58.5 58.6 58.9 58.9 58.9 58.9 58.9 58.9 58.9 S8.9 58.9 5.9GE 160001 51.7 55.1 56.9 58.0 58.5 58.6 58.9 58.9 58.9 58.9 5p.9 58.9 58.9 58.9 58.9 58.9GE 14000 53.7 57.0 58.8 !9.9 60.9 60.5 60.9 60.9 60.9 60.9 60.9 6C.9 60.9 60.9 60.9 60.9GE 12OUC 55.8 59.7 61.S 62.6 63.1 63.2 63.5 63.5 63.5 63.5 67.5 63.5 63.5 63.5 63.5 63.5

GE 100001 60.8 64.9 66.9 68.5 69.2 69.5 70.0 70.1 70.1 7.I 7O. 1 70.1 7D.1 70.1 71.1 70.1

GE 900CI 61.0 65.2 67.1 68.7 69.6 69.8 70.3 70.4 70.4 70.4 70.4 70.4 70.4 7C.4 70.4 7u.4GE 80001 64.9 69.4 71.8 73.5 75.2 75.7 76.3 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5GE 70OCI 65.9 70.5 73.0 79.7 76.7 77.1 7.1 78.2 78.2 78.2 78.3 78.3 78.3 78.3 79.3 78.3GE 6001 67.0 72.0 79.5 76.5 78.5 79.2 79.9 80.2 80.2 80.2 8n.3 80.3 80.3 80.3 80.3 80.3

GE 5nUC0 68.1 73.7 76.1 78.1 60.1 80.9 81.6 81.9 81.9 81.9 82.0 82.0 82.0 82.0 82.0 82.0GE 450CI 70.9 78.5 79.0 81.0 83.5 84.9 85.5 85.8 85.8 85.8 85.9 85.9 85.9 85.9 85.9 85.9OE 40001 71.6 77.7 80.5 82.5 86.0 86.9 88.6 89.1 89.2 89.2 89.9 89.9 89.4 89.4 89.4 89.4

GE 35001 72.9 78.7 81.7 13.7 87.3 88.2 90.0 90.8 90.9 9 91.0 91.0 91.0 91.0 91.0 91.0

GE 30001 74.2 80.6 83.8 85.7 89.6 9C.4 92.% 93.2 93.9 93.4 93.7 93.7 93.7 93.7 93.7 93.7

GE 25UC1 74.6 81.1 894.3 86.3 90.3 91.2 93.2 99.2 94.9 94.4 94.6 94.6 94.6 94.6 94.6 94.6

GE 20U01 74.7 81.3 89.7 86.8 96 .9 91.8 94.0 94.9 95.2 95.2 95.4 95.4 95.4 95.4 95.4 95.4GE 18001 74.7 1.

3 89.7 86.8 90.9 91.8 94.0 94.9 95.2 95.2 95.9 95.4 95.9 95.4 95 4 95.4

GE 1500C 74.8 81.9 85.2 87.2 91.4 92.9 94.5 95.5 95.7 95.7 95.9 95.9 95.9 95.9 95.9 95.9

GE 12001 75.2 81.9 85.9 88.0 92.2 93.1 95.3 96.3 96.6 96.6 96.8 96.8 -6.8 96.8 96.8 96.8

GE 10001 75.2 82.2 86.3 88.9 92.8 93.8 95.9 97.0 97.2 97.2 97.4 97.4 97.4 97. 97.4 97.4CE 9001 75.2 82.2 86.3 08.4 93.1 94.1 96.2 91.3 97.S 97.6 97.8 97.8 97.8 97.8 97.8 97.8GE 80C 75.2 82.2 86.3 88.4 93.1 99.5 96.7 98.0 98.2 98.3 99.5 98.5 98.5 98.5 98.5 98.5GE 7ori 75.2 82.2 86.3 88.9 93.1 94.5 96.8 98.1 98.3 98.4 98.6 98.6 98.6 98.6 98.6 98.6GE 6001 75.2 82.2 86.3 88.5 93.3 94.7 97.0 98.3 98.6 98.8 99.0 99.0 99.0 q9.0 99.0 99.0

GE *OCI 75.3 82.3 86.5 88.6 93.5 94.9 97.4 98.8 99.1 99.6 99.8 09.8 99.8 99.8 99.8

99.8GE 400l 75.9 82.5 86.7 88.8 93.8 95.2 97.6 99.0 99.4 99.8 100.0 100.0 100.0 10C.0 100.0 100.0

GE 3u01 75.9 82.5 86.7 88.8 93.8 95.2 97.6 99.0 99.4 1)9.8 100.0 100.0 100.0 100.0 100.0 100.0

GE 2011 75.9 82.5 86.7 88.8 93.8 95.2 97.6 99.0 99.4 99.e 100.0 103.0 100.0 10G.0 10C.0 100.0GE 100c 75.9 82.5 86.7 88.8 93.8 95.2 97.6 99.0 99.4 99.8 100.0 100.0 100.0 100.0 100.0 110.0

GE CI 7S.9 82.5 86.? 88.8 93.8 95.2 97.6 99.0 99.4 99.8 100.0 100.0 100.0 10c.0 o0.0 100.0

I0OAL NtMBER OF OBSERVATIONS: 930

*__

'w1

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUQENCE OF CEILING VFRSUS VISIBILITYUSAFE7AC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF PECOPO: 78-87

MONTH: AUG HOURSILSII: 0900-1100


IN I OL GE GE GE GE GE GE GE GE GE GE GE GE GE GE bE

FLET I 1n 6 5 9 3 2 112 2 I 112 I 114 1 3/9 518 112 5/16 11 0

NO CEIL 1 45.9 48.Z 49.2 99.4 99.8 50.1 50.1 50.1 50.1 50.1 50.1 50.1 50.1 1C.1 50.1 50.1

GE 200001 51.1 59.9 56.2 56.7 57.1 57.7 57.7 57.7 57.7 57.7 $7.7 57.7 57.7 57.7 57.7 57.7

GE 180OI 51.6 59.9 56.8 57.2 58.0 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3GE 10010 52.0 55.9 57.2 57.6 58.4 58.7 58.7 58.7 58.7 58.7 58.7 58.7 59.7 58.7 58.7 58.7

GE 140001 52.6 56.0 57.8 58.3 59.0 59.4 59.4 59.4 59.4 59.9 59.4 5-.4 59.49 9.4 59.4 59.4

GE 12000C 59.5 58.2 60.0 60.9 61.2

61.5 61.5 61.5 61.5 61.5 61.5 61.5 61.5 61.5 61.5 61.5

GE lOOUCI 58.0 62.2 64.1 64.6 65.9 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2

GE 90001 58.5 62.7 69.6 65.2 66.6 66.9 67.0 67.1 67.1 67.1 67.1 67.1 67.1 67.1 67.1 67.1GE 80001 61.7 66.5 69.1 69.8 71.7 72.2 72.3 72.4 72.9 72.4 72.9 72.9 72.9 72.4 72.4 72.4

GE 70DCI 63.3 68.2 70.9 71.5 73.7 79.2 7. 74.5 7 .5 74.5 74.9 79.5 74.9 74.5 74.5 74.5

GE 60001 69.1 68.9 72.0 72.9 75.3 75.8 76.C 7b.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1

GE 50OCI 65.8 7C.6 79.1 74.9 77.3 77.8 78.1 78.2 78.3 78.3 7p.3 78.3 78.3 78.3 78.3 78.3

GE 9S01 68.9 73.9 77.6 78.7 81.5 82.2 82.9 83.1 83.2 83.2 83.2 83.2 83.2 83.2 83.2 P3.2GE 43UCI 71.6 77.5 81.7 82.8 85.8 86.5 87.9 87.7 87.8 87.8 87.8 87.8 87.9 87.8 87.8 87.8

GE 350CI 79.3 9L.2 84.5 F5.6 88.9 89.7 90.6 91.1 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4

GE 30U01 75.5 82.2 86.9 88.2 91.6 92.9 93.9 94.3 99.6 99.8 99.8 94.8 94.8 94.8 94.8 99.8

GE 25U0 75.8 82.9 87.6 88.9 92.5 93.2 99.7 95.2 95.5 95.7 95.7 95.7 95.7 95.7 95.7 95.7GE 200CI 76.2 83.4 88.2 89.5 93.0 93.9 95.5 95.9 96.2 06.5 96.5 96.5 96.5 96.5 96.5 96.5

GE 18001 76.3 83.5 88.3 89.6 93.1 94.0 95.6 96.0 96.3 96.6 96.6 96.6 96.6 96.6 96.6 96.6GE ISOCI 76.7 84.0 88.9 9U.2 93.8 99.6 96.2 96.7 97.C 97.2 97.2 97.2 97.2 97.2 97.2 97.2

GE 12001 76.3 89.3 89.9 90.8 99.3 95.2 96.9 97.2 97.5 97.7 97.7 97.7 97.7 97.7 97.7 97.7

GE IOUCI 76.9 894.5 89.7 91.9 95.2 96.1 98.0 98.6 98.9 99.1 99.1 99.1 99.1 99.1 99. 99.1GE 9UGI 76.9 89.5 89.7 93.4 95.2 96.1 98.0 98.6 99.0 99.2 99.2 99.2 99.2 99.2 99.2 99.2

GE 8OCl 76.9 89.5 89.7 91.4 95.3 96.3 98.3 98.9 99.9 99.6 9Q.6 99.6 99.6 99.6 99.6 99.6

GE 7001 76.9 84.5 89.7 91.9 95.3 96.3 98.3 98.9 99.9 99.6 99.6 9;.6 99.6 99.6 99.6 99.6

GE 6001 76.9 89.5 69.7 91.4 95.3 96.3 98.3 98.9 99.9 99.6 99.6 99.6 99.6 99.6 99.6 99.6

GE 5001 76.9 89.5 89.9 91.6 95.5 96.6 98.6 99.2 99.8 100.0 3o.0 10.0 1o.o 100.0 100.0 100.0GE 4001 76.9 84.5 89.9 91.6 95.5 96.6 98.6 99.2 99.8 100.0 100.0 100.0 100.0 100.0 100.0 100.0GE 300 76.9 84.5 89.9 93.6 95.5 96.6 98.6 99.2 99.8 100.0 10-.O 100. 0 10 0.O 103.0 103.0GE

2CCl 76.9 89.5 89.9 91.6 95.5 96.6 98.6 99.2 99.8 170.0 100.0 100.0 100.0 10l.0 100.0 100.0

GE IuCI 76.9 89.5 89.9 91. b 95.5 96.6 98.6 99.2 99.8 1o0.o io.O 100.0 1O0.O 11c.0 300.0 100.0

GE oI 76.9 84.5 89.9 91.6 95.5 96.6 98.6 99.2 99.8 100.0 100.0 100.0 100.0 100.0 100.0 100.0


AMR- .,,

GL(BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFETAC FkOM HOURLY OBSERVATIONS

AIN WE ATHER SERVIC IMAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB Ny PEOIOo OF RECORD: 78-87MONTH: AUG HOURSILSTI: 12OJ1800

...................................................... -ATU .....................................................CE1LUNG VISIBILITY 18 STATUTE MILES

IN I GE GE GE GE GE GL GE GE GE GE GE GE GE GE GE GLFEr f 10 6 S 8 3 2 1/2 2 1 1/2 1 1/4 1 31/ 518 12, 5/16 1/4 0

...............................................................................................................................

NO CEIL 1 42.5 45.2 45.8 46.5 46.7 4b.8 46-8 86.8 86.8 86.8 86.8 46.8 46.8 46.8 46.8 86.8

GE 200001 88.5 51.8 52.6 53.7 58.3 58.4 54.q 54e4 514. 54.4 54.4 54.4 54.4 ;4.4 54.4 54.4GE 180001 8 q.8 52.2 52.9 54.0 58.6 58.7 5.7 58.1 58.7 5.7 5.7 54°7 58.7 ;4.7 54.7 54.7GE I60UC1 149.5 52.8 53.S 58.6 55.3 55.8 55.8 55.4 55.% 55.4 55.8 55.4 55.8 55.4 55.8 55.4GE 18

0jN| 51.0 58.8 55.2 56.2 56.9 57.0 57.0 57.0 57.0 57.0 57.0 57.

0 57.0 r7.0 57.0 57.0

GE 120001 52.7 56.7 57.7 59.0 59.7 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8 59.8

bE o0000 55.2 59.5 (.0.8 62.0 62.9 63.0 63.0 63.0 63.0 63.0 63.0 63.0 63.0 63.0 63.0 63.0GE 90100 55.8 6C.2 61.7 63.0 63.9 6q. 68.0 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1GE 800 1 5P.6 68.1 66.3 68.0 68.9 69.1 69.2 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5GE 70001 60.2 65.9 68.2 69.8 70.8 71.0 71,2 71. .8 71.8 71.8 73.4 71.4 71.8 71.4 71.4 71.4GE 60cc 60.9 66.7 69.1 70.8 71.7 71.9 72.2 72.8 72.8 724 72.4 72.4 72.4 72.8 72.8 72.4

GE 5OO0 64o. 71.0 73.5 75.3 76.2 76.5 76.7 76.9 77.0 77.0 77.3 77.0 77.0 77.0 77.0 77.0GE 4501 67.8 78.7 77.3 79.2 80.6 80.9 81.S 81.7 81.8 81.8 81.8 81.8 8l. 81.8 81.8 81.8GE 8nC00 74.8 81.8 88.6 86.8 88.8 88.6 89.4 89.6 89.7 89.7 89.7 89.7 69.7 99.7 89.7 89.7GE 35001 76.9 84.8 87.7 89.9 91.6 91.8 92.7 92.9 93.0 93.0 91.0 93.0 93.3 93.0 93.0 93.0GE 300 1 78.5 81.2 90.8 93.0 94.9 95.2 96.? 96.6 96.7 96.8 96.9 96.8 96.8 96.8 96.8 96.8

GE 25Cl 78.6 87.5 91.2 q3. 95.4 95.6 96.7 91.0 97.1 97.2 97.2 97.2 97.2 07.2 97.2 97.2GE 2ouCl 79.1 88.2 91.8 q.1 96.0 96.2 97.8 97.1 97.8 98.0 98.0 98.0 98.0 98.0 98.0 98.0GE 18001 79.1 88.2 91.8 9q.1 96.0 96.2 97.4 97.7 97.8 98.0 98. 98.0 98.0 98.,j 9R.0 98.0GE 1O0 79.1 88.2 91.8 98.1 96.0 96.2 97.8 97.7 97.8 98.0 98.g 98.0 98.0 98.0 98.0 98.0GE 12001 79.1 88.3 92.0 18.5 96.5 96.? 97.8 98.2 98.3 98.4 98.8 98.84 98.8 98.4 98.8 98.8

GE 10001 79.1 88.4 92.4 98.8 96.9 97.1 98.3 98.6 98.7 98.8 9P.8 98.8 99.8 98.8 9A.8 98.8

GE 90c0 79.1 88.8 9Z.4 98.8 97.0 97.2 98.5 98.8 98.9 99.0 99.0 99.0 99.0 99.0 99.0 99.0GE 80 1 79.1 48.8 92.8 98.8 97.2 97.4 98.8 99.2 99.8 99.5 99.5 99.5 99.5 99.5 99.5 99.55E 70C1 79.1 88.8 92.4 94.8 97.2 97.4 91.8 99.2 99.8 99.5 99.. 99.5 995. 99.5 99.5 99.5GE 620C 79.1 88.4 92.8 98.9 97.3 97.5 99.0 99.5 99.6 99.7 99.7 99.7 99.7 99.7 99.7 99.7

GE 5001 79.1 88.8 92.8 95.2 97.5 97.8 99.4 99.8 99.9 100.0 i0o. 1o0.o 10. 100.0 00.0 100.0oGE 80O1 79.1 88.8 92.8 95.2 97.5 97.8 99.1 99.8 99.9 £00.0 100.0 100.0 100.0 100.0 100.0 100.0GE 3001 79.1 88.8 97.4 95.2 97.5 97.8 99.4 99.8 99.9 70.0 .00D.0 10C.0 00. .O OC. 0 100. 0 o.GE 2001 79.1 88.8 92.8 95.2 97.5 97.8 99.4 99.8 99.9 100.0 100.0 1o.0 10O0. 100.0 100.0 100.0GE luol 19.1 88.8 92.4 95.2 97.5 97-8 99.4 99.8 99.9 100.0 1o.0 10C.0 100.0 OC.0 100.0 100.0

GE Cl 79.1 88.8 92.4 95.2 97.5 97.8 99.4 99.9 99.9 100.0 100.0 10C.0 100.0 100.0 100.0 300.0

...............................................................................................................................


JR_

GLCI3AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR NEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICK NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87

MONTH: AUG HOURSILS ': 1500-1700


IN I GE iE GE GE GE GE GE GE GE GE GE It GE GE GE GLFEET I 10 6 5 4 3 2 l/2 2 1 1/? 1 1/4 1 1/N 5/8 112 S/l6 1/4 0

.. . .................................................................................. ... ..-..............................

NO CETL I 46.3 N7.1 N7.6 48.2 48.5 N8.5 48.5 46.5 48.5 46.5 48.9 48.5 48.5 48.5 48.5 48.5

GE 20U0Cl 53.0 S4.5 55.3 56.1 56.6 56.6 56.6 5b.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6GE 180011 53.8 55.3 56.0 56.9 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3GE 16r7001 53.8 55.3 56.0 56.9 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3GE 140UCI 55.6 57.1 57.8 58.8 59.4 59.4 5

9.N 59.N 59.4 S9.4 59.4 59.4 59.4 59.4 59.4 S9.4

6E 120001 58.3 6C.5 61.5 62.7 63.2 63.2 63.3 63.3 63.3 63.3 63.3 63.3 63.3 63.3 67.3 63.3

GE 1ODUCI 61.5 (N.N 65.7 67.0 68.0 68.0 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 66.1GE 9701C 61.6 64.6 66.0 67.3 68.3 68.3 68.4 68.4 68.4 68.N 64. 68.4 68.4 68.4 6A.4 66.4GE 80U01 64.6 69.0 71.0 72.4 73.7 73.7 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8

GE 700C I 66.7 71.2 73.2 74.6 76.0 76.0 76.2 76.2 76. 76.2 76.2 76.2 76.2 76.2 76.2 76.2

GE 60001 67.1 71.8 73.9 75.3 76.7 76.7 76.9 76.9 76.9 76.9 76.q 76.9 76.9 76.9 76.9 76.9

GE 500C! 71.0 76.7 78.9 90.4 81.8 81.8 87.0 82.0 87.0 R2.0 82.0 82.0 82.0 F2.0 82.0 82.0GE 450r: 73.1 79.1 82.0 83.5 85.2 85.2 85.5 85.6 85.6 85.6 85.6 85.6 85.6 85.6 85.6 95.6GE 4Occ0 77.6 84.2 87.6 89.2 91.3 91.5 92.4 925 92.5 92.6 92.6 92.6 92.6 92.6 92.6 92.6GE 3500 78.6 85.6 89.1 90.8 92.8 93.1 94.1 94.2 94.2 94.3 9,.3 94.3 94.3 94.3 94.3 94.3E 30001 80.0 87.1 90.8 92.4 9N.9 95.5 96.8 96.9 96.9 97.0 97.0 97.0 97.0 97.0 97.0 97.0

GE 25JCI 80.1 87.3 91.0 92.6 95.2 95.7 97.1 97.3 97.4 97.5 97.5 97.5 97.5 97.5 97.5 97.5Cr

2CCJ 80.4 88.0 91.0 93.3 95.9 96.5 97.8 98.1 98.2 98.3 9A.3 98.3 98.3 98.3 98.3 9a.3GE IBU J 80.4 88.0 91.7 93.3 96.0 96.6 98.0 98.2 98.3 08.4 98.4 98.4 98.4 98.4 98.4 98.4GE 15011 80.6 88.3 92.0 93.8 96.6 97.1 9m.5 93.7 98.8 38.9 99.0 99.c 99.0 99.0 99.0 99.0GE 120C 80.6 88.4 92.2 94.0 96.9 97.4 99.0 99.2 99.4 99.5 90.6 99.6 99.6 99.6 99.6 99.6

GE 100C 80.6 88.4 92.2 9N.0 97.1 97.6 9q.4 99.6 99.7 99.8 99.9 99.9 99.9 99.9 99.9 99.9

GE 9001 80.6 88.4 92.2 9NeU 97.1 97.6 99.4 99.6 99.7 99.8 90.9 99.9 99.9 99.9 99.9 99.9GE 80r1 80.6 R8.4 "2.2 94.0 97.1 97.6 99.4 99.7 99.8 99.9 lo1.O 10.0 100.0 130.0 100.0 I00.0GE 7U1 80.6 88.4 92.2 94.0 97.1 97.b 99.4 99.7 99.8 99.9 100.0 103.0 100.0 1 G.0 100.0 100.0GE 60CI 80.6 87.4 92.2 94.0 97.1 97.6 99.4 99.7 99.8 99.9 .1T.0 1O.0 100.0 100.0 100.0 1 0.0

CE SUL 80.6 88.4 92.2 94.0 97.1 97.6 99.4 99.7 99.8 99.9 10.0 100.0 100.0 100.0 101.0 100.0GE 4001 80.6 8.4 92.2 9N.0 97.1 97.6 99.4 99.1 99.8 99.9 1o.0 100.0 100.0 100.0 100.0 100.0GE 30cI 80.6 88.4 92.2 94.0 97.1 97.6 99.4 99.7 99.8 99.9 100.0 100.0 100.0 100.0 100.0 1O.0GE 2UCi 80.6 88.4 92.2 94.0 97.1 97.6 99.4 99.7 99.8 99.9 100.0 100.0 100.0 10G.0 100.0 IO0.O

GE lUll 80.6 88.'. 92.2 Q4.3 97.1 97.6 99.4 99.7 99.8 99.9 100.0 100.0 100.0 100.0 100.0 100.0

GE CI 80.6 88.4 92.2 94.0 97.1 97.6 99.4 99.7 99.8 99.9 100.0 100.0 100.0 1rC.O 100.0 100.0

OTAL NUMBER OF OSERVATIONS: "30


AlV WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICh NAME: PLAITSBURGH AFB Ny PERIOD OF RECORD: 78-A7MONTH: AUG HOURS(LSI: 1800 -20

Do

CE ALONG 9ISOI|LITY IN STATUTE MILES

IN I GE EE GE GE GE GE GE GE GE GE GE GE GE GE GE 6EFEET I 10 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5116 1/4 0

NO OtIL 1 50.1 51.7 52.0 52 . 6 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1

GE 800001 $660 56.4 58.9 S9.7 60.4 60.4 60.4 60.4 60.4 60.C4 60.4 60.4 60.4 60.4 60.4 60.4GE 14fic01 56#1 58.9 59.5 60.2 61.0 61.0 61. n 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0

41 GE )600CI S&i 59.0 59.6 60.3 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1 P1.1

GE Woo00l I8 66.4 61.1 61.8 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 b2.6F. hUI 601.6 63.3 64.5 6S.3 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2

GE 1101d 63. 67.4 69.9 70.6 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9

G3 90oI 63.8 67.6 70.2 71.0 72.3 72.3 72.3 72.3 72.3 .3 72 .3 72.3 72.3 72.3 72.3 72.3GE U 1|74 72.7 75.4 76.2 18.1 78. 1 78.1 7.1 78.1 78.1 7 8. 78.1 TA.1 78.1 7s.1 78.1

P ,SE 7bo 68s 73.8 76.7 11b 79.6 79.6 79.7 79.7 79 79.7 79.7 79 7 79.7 79.7 79.7 79.7GE 6091 69. . 75.2 78.2 79.1 81.3 81.3 83.4 81.4 81.4 91.4 81.4 81.4 81.4 P1.4 81.4 P1.4

'E S0OOC 72.6 78.7 81.9 82.9 85.1 85.1 85.2 85.2 V5 .2 95.2 85. 85.2 85.2 P5.2 85.2 85 .2uE 45001 74.3 8C.5 83.8 84.7 87.3 87.3 87.5 87.6 87.6 87.6 87.6 87.6 80.6 87.6 87.6 87.6

GE 49001 76.3 83.3 87.1 88.3 91.1 91.3 92.2 92.4 92.4 92.4 92.4 92.4 92.4 92.4 9?.4 92.4

GE 350CI 77.0 84.2 88.1 89.4 92.4 92.7 93.7 94.1 94.1 Q4.1 94.1 94.1 94.1 94.1 94.1 94.1GE 3OO 7Q.1 85.6 89.7 91.1 94.4 94.7 95.9 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5

GE 250CI 78.3 85.8 89.9 91.3 94.6 95.1 96.2 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9bE 20U01 78.7 86.7 90.9 92.3 95.6 96.0 97.2 97.8 97.8 98.0 90.0 98.0 98.0 98.0 98.0 08.0

GE 18UC 78.8 96.9 91.2 92.6 95.9 96.3 97.5 98.2 98.2 98.3 98.3 98.3 98.3 98.3 99.3 98.35E 15001 78.9 87.2 91.5 92.9 96.3 96.8 98.1 98.7 98.7 98.8 98.8 9..8 98.8 98.8 96.8

E 12UCI 7.9 87.2 91.5 92.9 96.3 96.8 98.1 98.8 98.8 98,9 98.9 98.9 98.9 98.9 98.9 98.9

GE 1000 7P.0 87.2 91.5 92.9 96.5 96.9 98.3 99.0 99.1 q9.4 99.5 99.5 99.5 99.5 99.5 99.5GE 90 78.9 87.2 91.5 93.0 96.6 97.0 98.4 99.1 99.2 99.5 90.6 99.6 99.6 99.6 99.6 99.6

&E 80CI 78.9 47.2 91.5 93.0 96.8 97.2 9E.6 99.4 99.5 99.7 99.8 99.8 99.8 99.8 99.8 99.8AE 7C0 78.9 87.2 91.5 93.U 4b.8 97.2 98.6 99.4 99.5 99.7 90.8 99.8 99.

8 99.8 99.8 99.8

GE 601 78.9 87.2 91.5 93.0 96.8 97.2 98.6 99.4 99.5 99.7 99.8 99.8 99.8 99.8 99.8 99.8

GE 16C 78.9 37.2 91.5 93.0 96.8 97.2 99.6 99.4 99.5 09.7 99.8 99.8 99:.8 94.8 99.8 99.8GE 400 78.9 93.2 91.5 93.0 97.0 97.4 98.8 99.6 99.7 99.9 100 10.0 100.0 1.0 100.0 100.0

E 30CI 7.9 97.2 91.5 93.0 97.0 97.4 98.8 99.6 99.7 09.9 100.0 100.0 300.0 1I0.0 107.0 00.0

GE 20CI 78.9 87.2 91.5 93.0 97.0 97.4 99.8 99.b 99.7 99.9 10, .0 100.0 100.0 Ir'C.O 100.0 100.06E lOCI 78.9 97.2 91.5 q3.0 97.0 97.4 98.8 99.6 99.7 99.9 O.7 10.0 100.0 I00.0 300.0 100.0

GE CI 78.9 87.2 91.5 93.0 97.0 7.4 99.8 99.6 99.7 99.9 300.0 100. 1300.0 10.0 10.0 100.0.............. .. .......... ...... ..................................... .......................................


-- A

GL(BAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCIIRRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAI. WEATHER SERVICE/MAC

STA71ON NUMBER: 726225 STATION NAME: PLATTSBURGH AFS My PERIOD OF RECORD: 78-87MONTH: AUG HOURSILSTI: 2100-2300

CE ILING VISIBILITY IN STATUTE MILESIN I GE GE GE Gr GE GE GE GE GE GE GE GE GE GE GE GL

FEET 1 20 6 5 4 3 2 1/2 2 1 112 1 1./1 1 3/4 58 112 5/16 I/' 0............................... ................................................................................. ..........................

NO CEIL I 53.8 55.5 56.1 56.7 57.6 57.6 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7

GE 200001 57.2 59.0 59.8 60.3 61.9 61.9 62.0 62.0 62.0 62.0 62.0 62.0 67.0 62.0 62.0 62.0GE 1800CI 57.3 59.2 60.0 60.5 62.2 62.2 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3GE 16C001 57.7 59.7 60.4 61.0 62.6 62.6 62.7 62.7 b2.7 62.7 b2.7 62.7 62.7 62.7 62,7 62.7GE 140001 58.3 6C.2 61.2 61.7 63.3 63.3 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4GE 120001 60.3 62.8 64.1 64.b 66.2 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3

GE 1000CI 63.2 66.8 68.9 70.0 71.7 71.7 71.8 71.8 71.8 71.8 71.4 71.8 71.8 71.8 71.8 71.8GE 900CI 63.4 67.1 69.2 70.3 72.0 72.0 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2GE 800c0 66.8 71.2 73.4 7q,6 76.9 76.9 77.0 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 71.1GE 700C 68.0 72.9 75.2 76.3 78.8 78.8 78.9 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0GE 600CI 70.3 75.3 77.6 78.8 81.3 81.3 81.4 81.5 81.5 81.5 81.5 81.5 81.5 81.5 81.5 81.5

GE 500CI 73.7 79.0 81.6 83.0 85.7 85.7 85.8 85.9 85.9 85.9 85.9 85.9 85.9 85.9 85.9 85.9GE 452C0 15.3 8C.6 83.4 84.8 87.7 87.7 87.8 88.0 88.0 88.0 88.0 88.0 88.0 88.0 68.0 88.0GE 40OO1 76.9 84.0 87.1 88.5 91.7 91.9 92.4 92.7 92.7 92.7 92.7 92.7 92.7 92.7 927. 92.7GE 35u0I 77.1 84.3 87.5 89.2 92.7 93.0 93.5 93.9 93.9 93.9 93.9 93.9 93.9 93.9 93.9 93.9GE 30UC1 78.0 85.3 88.7 90.5 94.1 94.4 95.3 95.6 95.6 95.6 95.6 95.6 95.6 95.6 95.6 95.6

GE 250CI 78.2 85.6 89.2 91.2 94.7 95.1 96.0 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5GE 20CI 78.4 86.0 89.8 91.8 95.6 95-9 96.9 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3GE 18001 78.5 86.1 89.9 91.9 95.7 96.0 97.0 97.' 97.' 97.4 97.4 97.4 97.4 97.'. 97. 97.4GE 15001 78.7 87.0 97.9 92.9 96.7 97.u 98.0 98.6 98.6 98.6 99, 6 98.6 98.6 98.6 98.6 96.6GE 12001 78.7 87.0 90.9 92.9 96.7 97.0 98.0 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.6

GE IOC 78.7 87.1 91.0 93.0 96.8 97.1 98.3 99.0 99.0 99.0 99. 0 99.0 99.0 99.0 99.0 99.0GE 9001 78.8 87.2 91.1 93.1 97.2 97.5 98.7 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5GE 8001 78.8 81.2 91.1 93.1 97.4 97.7 98.9 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7GE 7001 78.9 87.3 91.2 93.2 97.6 98.0 99.1 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9GE 60l 78.9 87.3 91.2 e3.2 97.7 98.1 99.2 100.0 100.0 100.0 100.7 100.0 100.0 100.0 100.0 100.0

GE 5001 78.9 87.3 91.2 93.2 97.7 98.1 99.2 100.0 100.0 100.C 1 00.0 0-.0 100.0 110.0 100.0 100.06E OO1 78.9 87.3 91.2 93.2 97.7 98.1 99.2 100.0 00.0 100.0 100.0 10c.0 100.0 1rC0. 100.0 100.0CE 3001 78.9 97.3 91.2 93.2 97.7 98.1 99.2 100.0 100.0 100.0 j00.0 100.0 100.0 100.0 10n.0 10.0GE 2101 78.9 87.3 91.2 93.2 97.7 98.1 99.2 103.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0GE 1001 78.9 87.3 91. 2 93.2 97.7 98.1 99.2 100.0 100.0 100.0 100.0 102.0 100.0 rc.0 100.0 100.0

GE Cl 78.9 47.3 91.2 93.2 97.7 98.1 99.2 100.0 100.0 170.0 100.0 10.0 100.0 100.0 100.0 100.0

...................................... .. .................................. ......................................................TOTAL NUMBER OF OBSERVATIONS: 93n

0 ,,,

GLCBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CFILING VERSUS VISIBILITY

USAFETAC FROM HOURLY O8SERVATIONS

AIR WEAY14ER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: pLATTSBURGH AFB NY PERIOD OF RECORD: 78-87MONTH: AUG HOURSILSTI: ALL

CE ILING VISIBIL0TY IN S1ATUTE MILES

IN GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FLT I 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CE1L 1 48.7 50.7 51.5 52.0 52.5 52.6 52.7 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8

GE 200CI 53.5 S6.0 57.0 57.7 58.4 58.5 58.7 Sd.8 58.8 58.8 58.8 58.8 58.8 58.8 59.8 6.8

GE 180001 53.8 56.3 57.4 58.1 58.8 58.9 59.1 59.1 59.2 59.2 59-2

59.2 59.2 S9.2 59.2 59.2

GE 160C 1 54.0 S6,5 57.6 58.3 59.0 59.1 59.3 59.3 59.4 59.4 5o.4 59.4 59.4 59.4 59.4 59.4

GE 141001 55.1 57.7 58.8 59.6 60.3 60.4 60.6 60.6 60.6 60.6 60.6 60.6 60.6 60.6 60.6 60.6GE 120001 57.1 6C.l b1. 62.2 62.9 63.1 63.3 63.3 63.3 63.3 67.3 63.3 63.3 63.3 63.3 63.3

GE WO0001 60.2 63.8 65.6 66.7 678 67.9 68,. 68.2 68.2 68.2 68.2 68.2 68.2 68.2 69.2 68.2GE 9000 60.6 64.2 66.1 67.2 68.4 68.5 69.7 68.8 68.9 68.9 bR.9 68.9 68 9 68.9 68.9 68.9

GE 83001 64.1 68.5 70.8 72.1 73.6 73.9 74.1 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3

GE 700c1 65.4 7C.2 72 .6 73.9 75.6 75.9 76.2 76.4 76.4 76. 4 76 76.4 76.4 76.4 76.4 76.4

GE 60001 66.8 71.8 74.4 15.8 77.6 77.9 78.2 78. 78 78 78.4 78.4 79.4 7A.4 79.4 78.4

GE 50001 69.5 75.0 77.8 79.3 81.1 81.5 81.8 8Z.3 82.0 R2.0 82.0 R.c 8Z.0 F2.0 82.0 82.0GE 45001 72.0 71.8 80.7 82.3 84.6 84.9 85.5 85.7 85.8 85.8 85.9 85.8 85.8 85.8 85.8 85.8GE 4O00 74.8 8.3 819.7 86.3 89.2 89.7 90.6 9U.9 91.0 91.0 9.0 91.0 91.0 91.0 91.0 91.0

GE 35001 76.0 82,7 86.2 87.9 90.9 91.5 92.5 92.9 93.0 93.0 93.0 93.0 93. 0 9

0 9 .0 93.0Cl GE 3000I 77.3 84.4 88.1 89.9 93.2 93.8 95.3 95.4 95.5 95.6 gc.6 95.6 95.6 95.6 95.6 95.6

GE 25001 77.5 84.7 88.5 90.4 93.7 94.3 95.6 96.1 96.2 96.3 96.3 96.3 96.3 96.3 96.3 96.3GE Z0001 77.8 85.1 89.1 91.0 94.4 95.1 96.5 96.9 97.1 97.1 97.2 97.2 97.2 97.2 97.2 97.2GE 19001 77.9 95.2 89.2 91.1 94.5 95.2 96.6 97.1 97.2 97.3 97.3 97.3 97.3 97.3 97.3 97.3

UE 15001 78.1 85.5 89.6 91.5 95.0 95.7 97.1 97.7 97.0 97.9 97.1, 97.9 97.9 97.9 97.9 97.9GE 1200

I 78.1 85.7 89.9 91.8 95.3 96.0 97.5 98.1 98.2 98.3 9P.3 98.7 98.3 98.3 98.3 98.3

GE 10001 78.1 85.8 90.0 92.0 95.7 96.4 99.0 98.6 98.7 98.8 99.9 98.9 98.9 98.9 99.9 98.9

r GE 90CI 78.2 85.8 90.0 92.1 95.9 96.6 98.1 9d.8 98.9 99.0 99.0 99.0 99.0 99.0 99.0 99.0GE 8001 78.2 85.8 90.0 92.1 96.0 96.8 98.4 99.1 99. 2 99.3 99.4 99.4 99.4 99.4 99.4 99.4GE 70C1 78.2 85.8 90.1 92.1 96.0 96.8 98.. 99.1 99.3 99.4 99.4 99.4 99.4 99.4 99.4 99.4GE 60C1 78.2 85.8 90.1 92.1 96.2 97.0 98.6 99.3 99.4 99.6 99.6 99.6 99.6 99.6 99.6 99.6

GE 5001 79.2 85.8 90.1 92. 96.3 97.1 98.8 99.5 99.7 99.9 99.9 99.9 99.9 99.9 99.9 99.9GE 40u0 78.2 85.8 90.1 92.2 96.3 97.1 98.6 99.6 99.7 99.9 100.0 00.0 103.0 10.0 10.0 100.0GE 3001 78.2 85.8 90.1 92.2 96.3 97.1 98.8 99.6 99.7 99.9 100.0 1O.0 100.0 100.0 100.0 100.0GE 20C1 78.2 85.8 90.1 92.? 96.3 97.1 99.8 99.6 99.7 99.9 100.0 100.0 100.0 100.0 100.0 100.0

GE 1001 78.2 85.8 90.1 92.Z 96.3 97.1 98.8 99.6 99.7 Q9.9 100.0 100.0 100.0 100.0 103.0 100.0

GE Cl 78.2 85.8 90.1 92.2 96.3 97.1 98.8 99.6 99.7 99.9 101.0 100.0 100.0 10I.0 100.0 100.0

TOIAL NUMBER OF OBSERVATIO&S: 7440

A - -. . .

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE rF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY ObSERVaTIONSA!& AAHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH 4FB Ny PERIOD OF RECORD: 78-87MONTH: SEP HOURSILSTI1 : 000-0200

CEILING VISIBILITY IN STATUTE MILESIN | GE GE GE GF GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 1/4 1 3/4 5/8 112 5116 ]it 0................................................................................................................................................

NO CEIL 50.9 5J.4 53.8 54.3 54.8 54 .8 55.1 SS.I 55.1 55.1 55.1 S5.1 55.1 55.1 55.1 55.1

GE 200001 52.8 5S5.4 55.8 56.3 57.1 57.1 57.4 S7.4 57.4 57.14 57.4 51.4 57.4 57.4 57.4 ST.4GE JaOUOl 52.8 55.4 55.8 56.3 57.1 57.1 57.% 51.4 57.4 57.4 57.4 51.4 51.4 S7.4 57.4 57.4E 160001 52.9 55.6 55.9 56.4 57.2 57.2 57.6 57.b 57.6 57.6 57.6 57.6 57.6 51.6 S7.6 57-6

GE 140OCI 53.3 56.0 56.3 56.9 57.7 57.7 $8.0 58.0 58.0 58.0 5P.0 58.0 58.0 58.0 58.0 58.0GE 12o001 56.2 58.9 59.2 59.6 60.8 60.8 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1

G.E 10000 60.4 63.6 63.9 64.4 65.4 65.4 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8GE 900CI 60.8 639 64.2 64.8 65.8 6S.8 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66.1GE 8000 6S.4 68.9 69.3 69.9 70.9 70.9 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.T 71.3GE 7VO01 66.9 7C.3 70.8 71.4 72.6 72.6 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0GE 60OC0 68.4 72.3 73.2 73.9 75.2 75.2 75.7 75.7 75.7

75.7 15.7 75.7 75.7 75.7 75.7 75.1

GE 50001 71.4 75.7 77.3 78.0 80.0 80.0 80.4 80.4 80.4 80.4 80.4 8L.4 80.4 80.4 8a0. 8U.4GE 4SOCI 75.4

8c.1 82.0 82.7 84.7 84.7 85.1 85.1 85.1 85.1 85.1 85.1 85.1 85.1 85.1 85.1

GE 401CI 77.7 82.8 85.1 86.0 88.4 88.4 88.9 89.0 89.0 89.0 80.0 89.0 89.0 89.0 89.0 89.0GE 35001 79.o 84.4 86.9 87.8 90.2 90.2 90.7 90.8 90.8 90.8 90.8 9G.8 90.8 90.8 90.8 9u.8GE 30001 80.6 86.9 89.7 90.6 93.3 93.3 93.8 93.9 93.9 93.9 93.9 93.9 93.9 93.9 93.9 93.9

GE 25U0| 81.0 81.4 90.2 91.1 93.9 93.9 94.3 94.4 94.4 94.4 94.4 94.4 94.4 94.4 94.04 94.4

.E 20001 81.7 88.3 91.1 92.1 94.9 94.9 95.3 95.4 95.4 95.4 95.4 95.4 95.4 95.4 95.4 9,.4GE 18ol 81.8 98.4 91.2 92.2 95.0 95.0 95.4 95.6 95.6 95.6 9-.6 95.6 95.6 95.6 95.6 95.6GE 15001 81.8 88.7 91.4 92.4 95.4 95.7 96.1 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2GE 12001 81.9 88.8 91.6 92.7 95.7 95.9 96.4 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6

GE 10001 82.0 89.0 92.2 93.3 96.4 96.8 97.3 97.4 97.4 97.4 97.4 91.4 97.4 97.4 97.4 97.4GE 9001 62.0 89.0 92.7 93.8 96.v 97.2 97.9 98.0 98.0 98.0 98.0 98.0 98.0 98.0 98.0 98.0GE 8001 82.0 89.0 92.7 93.8 96.9 97.2 98.0 98.2 98.2 98.2 98.2 98.2 98.2 98.2 98.2 98.2GE 7001 82.0 89.0 92.9 94.3 97.6 97.9 00.7 98.9 98.9 98.9 90.9 98.9 98.9 98.9 98.9 98.9GE 6001 82.0 81.0 93.0 94.6 97.8 98.1 99.0 99.2 99.2 99.2 99.2 99.2 99.2 99.2 99.2 99.2

GE Sc| 82.0 89.0 93.0 94.6 97.8 98.1 99.1 99.4 99.4 99.4 99.4 4 9 99.4 99.4 99.4 99.4a GE 4001 82.0 89.0 93.0 94.6 97.8 98.1 99.3 99.6 99,6 99.6 99.6 99.6 99.6 99.6 99.6 99.6GE 3001 82.0 89.0 93.3 94.7 97.9 98.2 99.4 99.9 99,9 99*9 99.9 99.9 99.9 99.9 99.9 99.9GE 3001 82.0 89.0 93.1 94.7 97.9 98.2 99.4 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9GE 1OCI 82.0 89.0 93.1 94.7 97.9 98.2 99.4 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9

GE cl 82.0 89.0 93.1 94.7 97.9 98.2 99.4 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 100.0

..... . ...................... .....................................................................................................


0 Ar

GLCOAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VrRSUS VISIBILITYUSAFETAC FkOM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORO: 71-8MONTH: SEP HOURSILSTI: 0300-0500

:., ............................................................ .......; ; ; .... ... .............................................CEILINGVIBIIYNSTTTMLE

IN I G GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 8. 5 8 3 2 1/2 2 3 1/2 3 118 1 3/8 5,8 1/2 5/16 11N I

NO CEIL 1 49.8 51.9 52.3 52.8 53.6 53.6 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7

6E 20OU01 50.8 53.3 53.9 54.3 55.1 55.1 S5.2 55.2 55.2 55.2 55.2 55.2 55.2 55.2 55.2 55.2

GE 18DUCI 50.8 53.1 53.9 54.3 55.1 55.1 55.2 55.2 55.2 55.2 51.2 55.2 55.2 55.2 55.2 55.2

GE 1600C 50.8 53.3 53.9 54.1 55.1 55.1 55.2 55.2 55.2 55.2 55.2 55.2 55.2 55.2 55.2 55.2GE 18001 51.3 53.9 58.7 55.1 55.9 55.9 56.0 56.0 56.0 56.0 $6.

0 56.0 56.0 56.0 56.0 56.0

GE 12OU0I 52.7 55.3 56.1 56.6 51.3 57.3 s7.8 57.q 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.4

GE 100001 58.0 61.8 62.2 62.7 63.8 63.8 63.6 b3b 6:3.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6

GE 900C 1 8.0 b , 62.2 62.7 63.8 63.8 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6GE 800C1 62.R 66.8 67.2 67.8 68.7 68.7 68.8 68.8 68.8 68.8 6P.8 68.8 68.8 68.8 69.8 68.8GE ?000 68.4 68.7 69.7 70.2 71.3 71.3 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8GE 600C1 66.8 71.1 72.6 73.1 78.2 78.2 74.3 78.3 78.3 74.3 78.3 74.3 78.3 74.3 7.3 74.3

GE 50011 69.9 78.8 76.8 77.1 78.8 78.8 78.9 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2GE 85001 73.3 72.2 79.9 80. 82.3 82.3 82.8 82.8 82.8 82.8 82.8 82.8 82.8 82.8 82.8 82.8GE 400C 76.6 81.9 83.7 88.8 66.0 86.8 86.8 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.1

GE 35001 77.6 83.1 85.8 87.1 88.8 88.8 89.2 89.6 89.6 89.6 89.6 89.6 89.6 89.6 89.6 89.6

GE 3OOCI 79.3 85.3 88.6 89.9 91.6 91.6 92.1 92.8 92.4 92.8 92.4 92.4 92.8 92.8 92.8 92.4

bE 25UCI 80.2 86.3 89.8 91.1 92.8 92.8 93.3' 93.7 93.7 93.7 93.7 93.7 93.7 93.7 93.7 9S.7GE 2PO0 80.2 86.3 89.9 91.8 93.1 93.1 93.7 94.0 98.0 98.0 98.0 94.0 98.0 qq.o 98.0 98.0

GE 18UC1 80.7 86.8 90.3 91.9 93.6 93.6 98.1 98.4 98.8 98.8 98.4 98.8 98.8 98.8 94.8 98.8GE ISOCI 80.8 86.9 9n.6 92.1 93.8 93.8 98.3 98.7 98.7 98.7 98.7 98.7 98.7 94.7 98.7 94.7

CN .E 120CI 81.1 87.6 91.2 92.8 98.8 98.8 95.0 9b.3 95.3 95.3 9S.3 95.3 95e3 95.3 95.3 95.3

GE 10001 81.3 88.0 91.8 93.4 95.7 95.1 96.2 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6

GE 9goo 81.3 88.2 92.0 93.7 95.9 95.v 96.9 97.2 97.2 97.2 97.? 97.2 9T.2 97.2 97.2 97.2GE 8001 81.3 88.3 92.1 93.8 96.2 96.2 97.8 97.8 97.8 97.8 97.0 97.8 97.8 97.8 97.8 97.8GE 70C1 81.3 88.6 92.8 98.1 96.6 96.6 97.8 98.1 98.1 98.1 98.1 98.1 98.1 98.1 98.1 98.1GE 60C1 81.3 88.6 92.8 98.8 96.9 96.9 98.3 98.7 98.7 98.7 98.7 98.7 98.7 98.7 98.7 98.7

GE sool 83.3 88.6 93.1 98.9 97.3 97.3 98.8 99.1 99.1 99.3 99.1 99.1 99.1 99.3 99.1 99.1GE 4001 81.3 88.6 93.1 98.9 97.3 97.3 98.8 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.1 99.1GE TOo0 81.3 88.6 93.1 98.9 97.3 97.3 99.3 99.9 99.8 99.6 99.1 99.6 99.6 99.6 99.6 99.6

GE 20C1 81.3 q8.6 93.1 98.9 97.3 97.3 99.1 99.8 99.8 99.6 99.6 99.6 99.7 99.8 99.8 99.8GE IOC 81.3 88.6 93.1 98.9 97.3 97.3 99.1 99.8 99.8 99.6 99.6 9S.6 99.7 99.8 99.8 100.0

GE CI 81.3 88.6 93.1 98.9 97.3 97.3 99.1 99. 99.8 99.6 99.6 99.6 99.7 99.8 99.8 110.0

TOTAL NUMRBER OF OBSERVATIONS: 900

*' GLLBAL CLIMATOLOGY BRANCH PERCENTAGL FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

_* A1 WEATHER SERVICE/MAC

STATION NUMBER: 126225 STATION NAME: PLAT1SBURGH AFB NY PERIOD OF RECORO: 78-87

MONTH: SEP HOURSILSTI: 0600-0800

CElLISVSBLITY IN SETTrE MILESIN 9 GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE E

FEET I 10 6 5 4 3 2 112 2 1 112 1 1/14 1 314 5/8 112 5/16 1/4 0

NO CElL I 17.6 49.9 50.1 50.8 51.2 51.14 51.7 51.7 51.7 51.7 51.1 51.7 51.7 51.7 51. 7

GE 200001 51.0 53.3 53.8 54.4 54.9 55.1 55.3 55.3 55.3 55.3 S5.1 55.3 55.3 55.3 55.3 55.3GE ISOC9 5.2 53.6 54.0 514.7 55.1 55.3 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6GE 1600p1 51.3 53.7 514.1 54.8 55.2 55.11 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7

GE 140001 52.2 54.6 55.2 55.9 56.3 5b.b 56.8 56.8 56.8 56.8 56.8 56.8 55.8 56.8 56.8 56.8

GE 12COI 5s.9 57.2 57.9 58.6 59.0 59.2 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4

GE 100001 60.2 62.7 63.3 64.2 691.0 65.2 65.4 65.4 65.4 65.14 6S.4 65.4 65.4 65.4 65.4 65.4

GE 90001 60.14 62.9 63.6 64.4 65.0 65.4 65.7 65.7 65.7 65.7 65.7 65.7 65.7 65.7 65.7 65.7GE 80009 64.7 67.6 68.3 69.2 69.8 70.2 70.4 70.4 70.4 70.4 70.4 To.4 70.4 70.4 70.4 70.4

GE 7001 66.9 7C.3 71.1 72.2 73.0 73.4 73.7 73,7 73.7 73.7 73.7 73.7 73.7 73.1 73.7 73.7

6E 6 00 68.Z 71.7 72.4 73.6 74.4 74.9 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2

GE 500C| 70.3 74.2 75.2 76.4 77.4 77.9 71.3 78.3 78.3 78.3 7A.3 78.3 78.1 78.3 78.3 78.3GE 45UCI 12.9 77.1 78.1 79.3 80.6 81.1 81.6 81.7 81.7 141. 81.7 81.7 83.8 11.8 81.8 81.8

GE 4o0I 75.3 9C.3 81.14 82.8 84.7 85.2 85.9 86.0 86.0 86.0 8-.1 86.1 86.2 86.2 86.2 L6.2

GE 35009 76.3 81.8 83.0 84.4 86.7 87.2 87.9 88.0 88.0 88.0 88.1 88.1 81.2 88.2 88.2 88.2

GE 30UG0 79.0 85.1 86. 87.9 90.6 91.1 92.3 92.4 92.1 92.1 92.6 92.6 9Z.7 92.7 97.7 92.7

GE 25001 79.2 85.3 86.7 88.1 90.8 91.3 92.6 92.8 92.8 92.8 92.9 92.9 93.0 93.0 93.0 Q3.0GE 20009 79.8 86:r 87.3 88.8 91.4 92.0 93. 934 93.7 93.7 97.8 93.8 93. 9 93.9 93.9

GE 18009 79.8 86.1 87.1 88.9 91.6 92.1 93.3 93.6 93.8 93.8 93.9 93.9 9140 9140 91.0 99.0

GE 15001 80.1 6.4 87.9 89.3 92.0 92.6 93.8 94.2 914.4 914.4 94.6 94.6 914.7 94.1 94.7 94.7GE 12001 80.I 96.7 84.1 89.9 92.8 93.3 94.6 95.0 95.2 95.2 95.3 95.3 95.4 9 5 . 4 95.4 95.4

GE 10001 80.4 87.2 88.8 90.7 91.z 941.9 96.2 96.8 97.0 97.0 97.1 97.1 97.2 91.2 97.2 97.2GE 900c 50.1 87.4 89.1 91.0 94.7 95.3 96.7 97.2 97.4 97.4 97.6 91.6 97.7 97.7 97.7 97.7

bE 80cl 80.4 R.6 89.2 91.1 95.0 95.7 97.1 97.7 97.9 97.9 98.0 98.0 98.1 98.1 98.1 98.1

GE 7

C 80.14 87.8 89.4 91.3 95.2 95.9 97.3 97.9 98.1 98.1 98.2 98.2 98.3 98.3 98.3 98.3

GE 6U09 80.6 88.2 90.0 92.0 96.0 96.7 98.1 98.7 98.9 98.9 99.0 99.0 99.1 99.1 99.1 99.1

GE 101 80.6 88.2 90.0 92.0 96.0 96.7 98,1 98.7 98,9 98.9 99.0 99.0 99.1 99,1 99.1 99.GE 4031 80.6 88.2 90.1 9Z.1 96.1 96.8 98.3 98.9 99.1 99.1 99.2 99.2 99.3 99.3 99.3 99.3GE 30CI 80.6 58.2 90.1 92.1 96.1 96.8 9A.3 99.0 99.2 99.2 9q.3 99.3 99.6 99.6 9o.6 99.7

GE 2001 80.6 88.2 90.1 92.1 96.1 96.8 98.3 99.1 99.3 q9.4 99.6 99.6 99.8 99.8 99.8 99.9

GE 1O] 80.6 88.2 90.1 92.1 96.1 96.8 98.3 99.1 99.3 99.4 99.6 99.6 99.8 99.8 99.8 100.0

GE C1 80.6 88.2 90.1 92.1 96.1 96.8 98.3 99.3 99.3 99.4 99.6 99.6 99.8 99.8 99.8 IG.0.. . . . . . .. . . ......° °. . . . .. . . ... . . . . . . . . . . . .. . . . . . . . . . .....°.. ..... °...... . . .. . .

IOIAL NUMBER OF OBSERVATIONS: 930

0AOL

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRrGUENCY OF OCCURRENCE OF CEILING vrRsus VISIBILITYUSAFETAC FROM HOURLY OBSERVAIIONSAlk WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB Ny PERIOD OF RECORO: 78-87

MONTH: SEP HOURSILSTI: 0900-1100..................................................... .......... ,................ ............................................CEILING VISIBILITY IN STATUTE MILES

IN I GE bE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFLET a 10 6 5 ' 3 2 1/2 2 1 2 1,4 1 3/4 5/8 11/ 5/16 1a' 0

NO CEIL I 45.7 87.8 48.1 98.7 '8.8 88.8 48.9 '8.9 98.9 '8.9 '8.9 48.9 '8.9 '8.9 '8.9 48.9

GE 200001 50.2 52.0 52.7 53.2 53.6 53.6 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7GE 180001 50.3 52.1 52.8 53.3 53.7 53.7 53.8 53.8 53.8 S3.8 53.8 53.8 53.8 53.8 53.8 53.8GE 160001 50.3 52.1 52.8 S3.3 53.7 53.7 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8GE 1'OJOI 50.7 52.8 53.1 53.7 58.0 54.0 54.1 54.1 54.1 54.1 58.1 58.1 54.1 54.1 58.1 58.1".E 120001 52.8 54.7 55.8 56.0 56.3 56.3 56.4 56.4 56.8 56.4 56.8 56.8 56.4 56.8 56.4 56.8

GE 100001 57.6 59.6 60.4 61.0 61.7 61.7 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8GE 9C0| 57.9 60.0 60.9 61.8 62.1 62.1 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2GE 80001 62.9 65.3 66.6 67.1 67.9 67.9 68.0 68.0 68.0 68.D 68.0 68.0 68.0 68.0 68.0 68.0

GE 70001 68.9 67.9 69.1 69.9 71.0 71.0 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1GE 60001 66.2 69.3 70.7 71.8 72.7 72.8 72.9 72.9 72.9 72.9 72.9 72.9 72.9 72.9 72.9 72.9

GE SOOCI 68.3 71.9 73.3 78.8 75.9 76.0 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.10 GE 4500I 71.4 75.8 77.4 78.6 80.3 80.4 80.6 80.6 80.7 80.7 80.7 80.7 80.7 80.7 80.7 80.7

GE 4001 74.8 79.2 80.9 82.1 8.0 88.1 88.2 8982 88.3 88.3 8.3 88.3 88.3 F8.3 88.3 88.3

GE 35001 78.2 82.9 84.8 86.0 87.9 88.0 88.1 88.1 88.2 88.2 88.2 88.2 88.2 88.2 89.2 88.2GE 30001 81.8 86.8 88.6 89.9 92.1 92.2 92.3 92.6 92.7 92.8 92.8 92.8 92.8 92.8 92.8 92.8

GE 250C1 81.2 87.0 89.1 90.4 92.7 92.8 92.9 93.2 93.3 93.4 93.6 93.6 93.6 93.6 93.6 93.6GE Z0011 81 6 87.6 89.9 91.2 93-6 93.7 93.8 98.1 94.2 98.3 94.6 94.6 98.6 98.6 94.6 94.6GE l8oc 81.8 87.9 90.2 91.6 93.9 98.0 94.1 98.8 88.6 94.7 98.9 98.9 94.9 98.9 94.9 94.9

GE 15001 81.9 88.0 9n.6 92.0 98.3 94.4 94.7 95.0 95.1 QS.2 95.8 95.4 95.8 95.4 9S.4 95.8

GE 120C1 81.9 88.0 90.7 92.2 98.7 94.8 95.0 95.3 95.4 U5.6 95.8 95.8 95.8 95.8 95.8 95.8

GE IOCI 81.9 88.6 91.4 93.1 95.6 95.7 96.2 96.6 96.7 96.8 91.1 97.1 97.1 97.1 97.1 97.1GE 901ir 87." 8. 91.7 93.8 95.9 96.0 96.7 97.0 97.1 97.2 97.6 97.6 97.6 97.6 97.6 97.6

GE 8001 82.1 89.0 91.9 93.7 ,6.3 96.6 97.3 97.8 97.9 98.0 98.3 98.3 98.3 98.3 98.3 96.3GE 70C

I 82.2 89.1 92.0 93.9 96.6 96.9 97.7 98.1 98.2 98.4 98.8 98.8 98.8 98-8 98.8 96.8

GE 60C 82.2 89.3 92.2 98.1 97.0 91.3 98.1 98.6 98.7 98.9 99.2 99.2 99.2 09.2 99.2 99.2

GE 501I 82.2 89.3 92.2 98.1 97.0 97.3 98.? 90.9 99.0 99.2 99.6 99.6 99.6 99.6 99.6 99.6GE 4001 82.2 89.3 92.2 94.1 97.0 97.3 98.4 99.1 99.2 99.4 99.8 99.8 99.8 99.8 99.8 99.6GE 30CI 82.2 89.3 92.2 98.1 97.0 97.3 98.8 99.1 99.2 99.6 103.0 100.0 100.0 131.0 100.0 100.0GE 20CI 82.2 89.3 92.2 98.1 97.0 97.3 98.8 99.1 99.2 99.6 l0r'.0 100.0 100.0 13c.0 100.0 100.0GE lOOl 82.2 89.3 92.2 94.1 97.0 97.3 98.4 99.1 99.2 99.6 100.0 100.0 100.0 101.0 100.0 100.0

GE CI 82.2 89.3 92.2 98.1 97.0 97.3 98.8 99.1 99.2 09.6 100.0 100.0 100.0 101.0 100.0 100.0.. . . . . . .. . . . .................................. ............ ........................... . .. . . . .. ... .. .. I ..........


0h_ o -AK

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATICN NAMEs PLATTSBURGH AFS Ny PEDIGO OF RECORO: 78-87MONTH: SEP HOURSILSTI: 1200-1400

CEILING .... •VISIPILITY IN STATUTE MILES

IN I GE GE GE 6E GE GE GE GE GE GE rE GE GE GE GE 61FEET I 10 6 5 4 3 2 1/2 2 1 1f2 1 1/4 1 3/4 5/8 112 S/16 1/4 0

NO CEIL I 40.2 41.6 41.9 42.3 4Z.7 42.7 42.7 42.7 47.7 42.7 42.7 42.7 42.7 42.7 4?.7 42.7

GE 200001 46.3 48.0 948.3 49.0 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3

GE 1800CI 46.7 48.3 4B.7 49.3 49.7 49.7 49.7 49.7 49.7 49.7 49.7 497 49.7 49.7 49.7 49.7GE 1600CI 46.8 48.4 .8.8 49.4 49.8 49.8 49.8 99.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8

GE 19ouo 47.2 49.0 '9.3 50.0 50.3 50.3 50.3 50.3 50.3 50.3 50.3 50.3 50.3 50.3 50.3 s0.3GE 1200CI 49.4 51.3 51.7 5Z.3 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7

C'GE 100001 54.8 57.2 58.0 58.7 59.0 59.0 59.0 59.0 59.1 59.1 59.0 59.1 59.1 59.0 59.0 59.0

GE 90001 54.9 57.3 58.1 58.8 59.1 59.1 59.1 59.0 59.1 9.01 59.1 59.1 59.1 59.1 59.01 59.1

GE 80001 57.9 6C.8 61.7 62.6 b2.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9 b2.9tGE 70u:| 60.3 63.7 611.6 65.4 66.0 66.0 66.0 66.0 6.0 66.0 66.0 66.0 66.0 66.0 66.0 66.0

GE 600CI 62.2 65.9 67.0 68.1 b8,7 68.7 68.7 68.7 68.7 68.7 6R-7

68.7 68.7 68.7 69.1 6b.T

GE 500C| 68.6 72.4 73.8 79.9 7S.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7

GE 450C 72.? 76.7 78.0 79.1 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9

GE 4300C 76.8 81.2 82.8 84.1 85.0 85.0 85.0 850 85.0 45.0 85.0 85 85.0 8:50 8.0 85.0GE 350c: 81:.0 85:8 870:4 %8, 89.7 897 89,) 89:7 :9:7 89:

7 89:7 89:7 89 7 897 89o7 89.7

¢"GE S0OCI s3.8 O9.0 91.1 92.6 946.O 94.U 99.1 94.l 99.1 94.1 94.1 94.1 94.1 94.1 94.1 94.1

GE 25001 84.6 85.9 92.1 93.6 95.1 95.1 95.2 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3GE ZOOC 84.8 9C.3 92.7 94.1 95.8 95.6 95.9 96.0 96.0 96.0 96.0 96.0 96.0 96.0 96.0 96.0

GE 18001 84.8 9C.3 92.7 9:. 95.8 95.8 95,9 96.a 96.0 96.0 96.0 96:0 96.0 96.0 96:0 96.0GE 15001 84.9 91.6 92.9 94.3 96.0 96.0 96.1 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2

GE 12301 84.9 90.6 92.9 94.3 96.0 96.1 96.4 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6

GE 10001 84.9 91.3 93.8 95.2 96.9 97.0 97.9 98.2 98.2 98.2 9p.4 98.4 98.4 98.4 98.4 98.4

GE 9GCI 84.9 91.6 94.0 95.4 97.1 97.2 98.1 98.4 98.4 98.4 98.7 98.7 95.7 98.7 98.7 96.7

GE 800| 84.9 91.7 94.2 95.7 97.3 97.4 98.3 98.7 98.8 98.8 99.0 99.0 99.0 99.0 99.0 99.0

GE 7uO 84.9 91.7 94.3 95.8 97.4 97.6 98.4 98.8 98.9 98.9 99.1 99.1 99.1 99.1 99.1 99.1

GE 60CI 84.9 91.7 94.3 95.8 97.9 97.6 98.4 98.8 98.9 98.9 99.1 99.1 99.1 99.1 99.1 99.

GE 5cl 84.9 91.7 94.7 95.9 97.6 97.7 988 99.9 99.6 99.6 .10.0 100.0 100:0 1f0.0 100.0 100.0GE 40C1 89.9 91.7 94.3 95.9 97.6 97.7 98.8 99. 9.6 100.0 10.0 100.a Ic.0 100.0 100.0

GE 3(UC 84.9 91.7 94.3 95.9 97.6 97.7 98.8 99.4 99.6 99.6 100.0 1o.o 100.0 ICO.O 100.0 10C.0GE 20C1 84.9 91.7 94.3 95.9 97.6 97.7 98.8 99.4 99.6 99.6 100.0 lo0.0 100.0 100.0 l0.0 100.0GE lIa 84.9 91.7 99.3 95.9 97.6 97.7 98.8 99.4 99.6 99.6 100.0 100.0 100.0 100.0 100.0 100.0

E 81.9 91.7 94.3 95.9 97.6 97.7 98.8 99. 99.6 99.6 .100.0 100.0 100.0 100.01 . .9.. .I'M .:. .. . .ER.. . .. .O.F. OS.EI.0

T01&L NUMBRER OF OBSERVATIONS: 900

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURQE4CE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

A1k WEATHER SERVICEIAC

STATION NUPIRER: 7Z6225 STATION NAME: PLATTSBURGH AF Ny PERIOD Of RECORD: 78-8?

MONTH: SEP HOURSILST21 150_1700:%" C[;.'..........................................................................................................................95 9 L T N 1 I T I E

CEILING VISIBILITY IN STATUTE MILESIN 3 GE GE GE GE GE GE GE GE GE GE GE GE GE GE G E GE

FLET I 10 6 5 i 3 2 112 2 1 2/2 1 Ii. 1 7/4 5/8 1/2 3/14 1/4 0

............................................... ..................................................................................................

* NO CEIL 1 45.2 46.2 46.7 47.1 47.4 47.4 47.4 47.4 47.4 47.4 47.4 47.4 47.4 41.4 47.4 47.4

GE 200003 52.3 53.7 54.3 54.8 55.1 5S.l 55.1 55.1 55.1 5o 55.1 55.1 55.1 55.1 55.1 55.1GE 180001 52.6 53.9 54.6 55.0 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3GE 16DO0I 52.6 53.9 5.6 35.0 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3GE IOOCI 53.3 54.8 55.6 56.0 56.3 56.3 S6.3 56.3 56.3 56.3 56.3 5b.3 56.3 56.3 56.3 56.3GE 1200CI 55.6 51.2 58.1 58.6 58.9 589 58.9 S5.9 58.9 58.9 58.9 58.9 58.9 S8.9 54.9 58.9

GE 100001 SB.9 61.0 61.9 62.3 b2:B 62:B 622.8 6,8 62.8 62.8 62.8 62.8 62.8 62.8 62. 62.8GE 9000C 59.1 61.2 62.3 62.8 63.2 63.2 63.2 63.2 63.2 63.2 61.2 63.2 63.2 63.2 61.2 63.2GE 8oau 62.0 64.6 65.7 66.1 66.7 66.7 66.7 66.7 66.7 66.7 66.7 66.7 66.7 66 .7 66.7GE 700 1 65.3 68.0 69.3 69.8 70.6 70.6 70.6 70.6 70.6 70.6 10.6 7.6 70.6 70.6 70.6 70.66E 6000| 67.4 70.1 71.6 72.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.0 73.o 73.Q 73.0 73.0

GE 50001 74.3 77.7 79.4 80.0 81.1 8I.1 81.1 81.1 81.I 81.1 81.1 81.1 8.1 81.1 81.1 81.1GE 4s500 77.6 81.2 83.0 83.7 84.9 84.9 84.9 84.9 84.9 R4.9 84.9 84.9 8.9 84.9 84.9 84.9GE 40G0 8 1.0 84.8 86.8 87.4 88.8 88.8 8B.8 88.9 88.9 88.9 88.9 88.9 88.9 88.9 84.9 88.9GE 350CI 82.7 86.9 88.9 89.8 91.1 91.2 91.2 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3GE 30U00 83.6 88.0 90.1 91.8 93.6 93.7 93.7 93.8 93.8 93.8 93.8 93.8 93.8 93.8 93.8 93.8

GE 2500C 84.2 88.8 90.9 92.6 94.6 94.7 94.8 94.9 94.9 95.0 95.0 95.0 95*0 95.0 95.0 95.0* GE 200CI 84.2 89.1 91.3 93.0 95.3 95.4 95.8 96.0 96.0 96.1 96.1 96.1 96.1 96.1 96.1 96.1

* GE 18001 88.2 85.1 91.3 93.0 95.3 95.4 95.8 96.0 96.0 96.1 96.1 96.1 96.1 96.1 96.1 96.1GE 15003 84.2 89.1 91.3 93.0 95.4 95.6 96.0 96.3 96.3 96.4 96.4 96.4 96.4 q6.4 96.4 96.45E 12001 84.2 89.3 91.6 93.2 95.7 95.9 96.3 9b.7 96.7 96.8 96.8 96.8 968. 96.8 96.8 96.8

GE 1000! 84.4 9C.3 92.8 94.4 97.0 97.2 98.1 98.4 98.4 98.6 98.6 98.6 98.6 98.6 98,6 98.6GE 90C3 84.4 9C.3 92.8 94.4 97.0 97.2 98.1 98.6 98.6 98.7 98.7 98.7 98.7 98.7 98.7 98.7GE 8003 84.6

9C.6 93.0 94.7 97.2 97.4 98.4 99.1 99.5 99-2 99.2 99.2 99.2 99.2 99.2 99.2

GE 7003 84.6 9C.6 93.0 94.7 97.2 97.4 98.6 99.4 99.4 99.6 99.6 99g. 99.6 99.6 99.6 99.6GE 6003 84.6 9C.6 93.0 94.7 97.2 97.4 98.6 99.6 99.6 99.8 1o.c 10.0 200.0 100.0 100.0 100.0

GE 50C 84.6 9C.6 93.0 94.7 97.2 97.4 98.6 99.6 99.6 99.8 200.0 10u.0 200.0 ICC.0 200.0 101.0" GE 40C 84.6 90.6 93.0 99.7 97.2 97.4 98.6 99.6 99.6 19.8 100.0 101.0 100.0 100.0 100.0 100.0

GE 3001 84.6 90.6 93.0 94.7 97.2 97.4 98.6 99.6 99.6 99.8 100.0 100.0 100.0 100.0 100.0 100.0GE 20C

I 84.6 9C.6 93.0 94.7 97.2 97.4 98.6 99.6 99.6 99.8 20n.0 Ioo.o 100.0 100.0 100.0 100.0GE loci 84.6 9Co6 93.0 94.7 97.2 97.4 98.6 99.b 99.6 p9.8 1o.O lOO.o 100.0 o.o lo0.O lo0.0

GE C 84.6 9C.6 93.0 94.7 97.2 97.4 98.6 99.6 99.6 99.8 lo.0 100.0 100.0 100.0 100.0 100.0

.................................................................................................................................................


*

I ._

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY



STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-A7MONTH: SEP HOURSILST): 1800-2000

..................................................... ........................... ............................................CEILING VISIBILITY IN STATUT' MILES

IN I GE GE GE GE GE GE GE GE GE GE rE GE GE GE GE bEFEET 3 10 6 5 4 3 2 112 2 1 112 I 114 1 3/4 58 12 5/16 1/4 0

NO CEIL 1 50.0 52.1 52.1 S2.7 52. 7 52.7 52.7 52.7 52.7 52.7 57.7 52.7 52.7 52.7 52.7 52.7

GE 200001 53.7 51.8 56.0 56.7 56.7 56.7 56.8 56.A 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8GE 180001 53.7 55.8 56.0 56.7 56.7 56.7 56.8 56.8 56.8 56.8 56.8 56.8 56.8 S6.8 56.8 56.8GE 1600CI 53.7 55.8 S6.0 56.7 56.7 $6.7 56.8 5b.8 S6.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8GE 1'0001 54.9 57.0 57.3 58.1 58.2 58.2 58.3 58.3 59.3 58.3 5R.3 58.3 58.3 58.3 58.3 58.3GE 120001 57.3 59.4 59.9 60.8 60.9 6D.9 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0

L-E 1000C0 60.9 63.6 64.0 65.1 65.4 65.4 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6GE 90001 61.1 64.1 64.7 65.8 66.3 66.3 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 6b.4GE 80003 65.0 68.2 69.1 70.2 70.8 70.8 70.9 70.9 70.9 70.9 7n.9 70.9 70.9 7C.9 70.9 70.9GE 700CI 68.0 71.7 73.0 74.1 74.9 74.9 75.0 75.0 75.0 75.0 75.0 75.0 75.0 75.0 75.0 75.0GE 60001 70.8 74.4 75.8 76.9 77.7 77.7 77.8 77.8 7.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8

GE 60001 7o.9 78.9 80.4 82.0 82.9 82.9 83.0 83.0 83.0 83.0 83.0 83.0 83.0 83.0 83.0 83.0GE 451C1 78.6 82.7 89.4 86.0 86.9 86.9 87.0 87.0 87.0 87.0 87.0 87.0 87.0 87.0 87.0 81.0GE 40001 80.7 84.9 87.0 88.6 89.6 89.6 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7GE 35003 82.9 87.6 89.9 91.4 92.4 92.4 92.6 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9GE 300C 83.4 88.2 90.8 92.7 94.0 94.0 940.1 94.4 94.4 94.4 94.4 94.4 94.4 04.4 94.4 94.4

GE 25001 83.9 88.7 91.2 93.1 94.4 94.4 94.6 94.9 94.9 95.0 95.0 95.0 95.0 95.0 95.0 95.0GE 200c1 84.0 85.1 91.8 93-7 95.0 95.0 95.2 95.6 95.6 95.7 95.7 95.7 95.7 95.7 95.7 95.7GE 18003 84.0 89.1 91.8 93.7 95.0 95.0 95.2 95.6 95.6 95.7 95.7 95.7 95.7 95.7 95.7 95.7

GE 15001 84.0 89.2 91.9 93.8 95.1 95.1 95.6 95.9 95.9 96.1 96.1 96.1 96.1 96.1 96.1 96.1GE 12001 84.1 89.6 92.2 94.1 95.4 95.4 95.9 96.2 96.2 96.4 96.4 96.4 96.4 96.4 96.9 96.4

GE 10001 84.1 89.7 92.4 94.3 95.9 95.9 96.3 96.7 96.7 96.9 96.9 96.9 96.9 96.9 96.9 96.9GE 9001 84.2 90.1 93.1 95.0 96.6 96.6 97.4 97.8 97.8 98.0 98.0 98.0 98.0 98.0 9s.0 98.0GE 80c0 84.2 9C.1 93.2 95.2 96.8 96.8 97.7 98.0 98.0 98.2 98.2 98.2 98.2 98.2 98.2 98.2GE 70C1 84.2 906 93.8 95.8 97.3 97.3 98.2 98.6 98.6 08.8 98.8 98.8 98.8 98.8 98.8 98.8GE 6003 84.2 9C06 93.9 95.9 97.4 97.4 98.3 98.7 98.7 98.9 9R.9 98.9 98.9 98.9 9s.9 98.9

GE 5CC 84.2 90.6 94.1 96.1 97.8 97.8 98.7 99.3 99.3 99.6 99.6 99.6 99.6 99.6 99.6 99.6GE 4001 84.2 90.6 94.1 96.1 97.8 97.8 98.8 99.4 99.4 99.8 99.8 99.8 99.8 99.8 99.8 99.8GE 3003 84.2 9C06 94.1 96.1 97.8 97.8 98.8 99.4 99.4 99.8 99.8 99.8 99.8 99.8 99.8 99.8GE 2001 84.? 9206 94.1 96.1 97.8 97.8 988 99 999 99.9 99.9 99.9 99.9 100.0 00.0GE 1001 84.2 9C.6 94.1 96.1 97.8 97.8 98.8 99.6 99.6 99.9 99.9 99.9 99.9 99.9 303.0 100.0

GE El 84.2 9C0.6 94.1 96.1 97.8 97.8 98.8 99.6 99.6 99.9 99.9 99.9 99.9 99.9 100.0 100.0

TOTAL NUMBER OF OBSERVATIOhS: 900

GL "AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFETAC FROM HOURLY OBSERVATIONSAlf WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: SEP HOURS(LST): 2100-2300

CEILING ...... VISIBILITY IN STATUTE MILES

ING GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET 10 6 4 4 3 2 112 2 1 112 1 114 1 3/4 518 112 5116 1/q 0

NO CEIL I 49.8 52.6 53.0 53.3 53.7 53.7 53.8 53.B 53.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8

GE 200001 51.9 54.7 55.1 55.4 55.9 55.9 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0GE 180001 51.9 sq.? 55.1 55.4 55.9 55.9 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0GE 160001 51.9 54.7 S5.1 55.4 55.9 55.9 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0GE 140001 5Z.8 55.6 56.0 56.3 56.8 56-8 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9GE 1ZoCJ 54.3 57.1 57.6 57.9 58.3 58.3 58.4 58.4 58.1 58. 58.4 58.4 58.4 SB.4 58.4 58.4

GE IDOOCI 59.0 62.1 62.6 62.9 63.3 63.3 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6GE 9o a 59.9. 62.9 63.3 63.7 64.2 64.2 bq. 64.4 64.4 64.4 64.4 6q.4 64.4 64.4 64.4 64.4GE 800 63.7 67.2 67.9 68.2 68.9 68.9 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2GE TOOC I 65.4 69.1 70.7 71.0 71.7 71.7 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0

GE 60001 67.8 71.4 73.2 73.6 74.4 74.4 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8

GE sOO I 71.9 76.2 78.8 79.1 80.2 80.2 80.7 80.7 80.7 80.7 80.7 80.7 80.7 80.7 80.7 80.7GE 45001 71.1 81.0 85.0 85.3 86.4 86.4 86.9 86.9 86.9 86.9 86.9 86.9 86.9 86.9 86.9 86.9GE 40001 79.1 84.4 87.4 87.9 89.3 89.3 90.0 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1GE 35001 80.7 86.0 89.0 89.4 91.1 91.2 91.9 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0GE 30001 81.6 87.1 90.3 91.0 93.2 93.3 94.4 94.6 94.6 94.6 94.6 94.6 94.6 94.6 94.6 94.6

GE 25001 82.2 88.0 91.3 92.0 94.3 94.4 95.6 95.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7GE 20001 82.7 88.9 92.2 93.0 95.3 95.4 96.6 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7GE 18001 82.7 88.9 92.2 93.0 95.3 95.4 96.6 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7

GE 15001 82.7 89. 0 92.3 93.1 95.4 95.? 96.8 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9C GE 12001 82.9 89.2 92.6 93.3 95.7 95.9 97.2 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3

GE 1001 82.9 89.2 92.6 93.3 96.0 96.2 97.7 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8GE 9009 82.9 89.2 92.7 93.1 96.2 96.4 97.9 98.0 98.0 98.0 98.0 98.0 98.0 98.0 9R.0 98.0GE 8009 82.9 89.2 92.7 93.4 96.2 96.4 97.9 98.0 98.0 98.0 9?. 98.0 98.0 98.0 98.0 98.0GE 7001 82.9 89.2 93.0 93.9 96.7 96.9 98.3 98.4 98.4 98.4 98.4 98.4 98.4 98.4 98.4 98.4GE 6009 82.9 89.3 93.2 94.2 97.0 97.2 98.7 98.8 98.8 98.8 94.8 98.8 98.9 98.8 98.8 98.8

GE 50C| 82.9 89.3 93.4 94.7 97.4 97.7 99.1 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3GE 4001 82.9 89.3 93.4 94.7 97.4 97.7 99.1 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3GE 3001 83.0 89.6 93.7 94.9 97.7 97.9 99.3 99.6 99.6 99.7 99.7 99.7 99.7 99.7 99.7 99.7GE 2009 83.0 89.6 93.7 94.9 97.7 97.9 99.3 99.6 99.6 99.7 99.8 99.8 99.8 99.8 99.8 99.8GE 1001 83.0 89.6 93.7 94,9 97.7 97.9 99.3 99.6 99.6 99.7 99.8 99.8 99.8 99.8 99.8 100.0

GE C1 83.0 89.6 93.7 94.9 97.7 97.9 99.3 99.6 99.6 99.7 99.8 99.8 99.8 99.8 99.8 100.0

OTAL NUMBER OF OBSERVATIONS: 900

ANI

GLEBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILIIYUSArETAC FROM HOURLY OBSERVAIXONS

Alk IEAIHER SERVICE/MAC

STATION NUMBER: 726225 STAIION NAME: PLATTSBURGH Are Ny PERIOD OF RECORD: 78-87MONTH: SEP HOURS(LSEI: ALL


IN I BE E GE GE GE GE BE GE GE GE BE BE GE GE BE GEFEET 1 10 6 5 N 3 2 112 2 1 I1 2 1/4 1 314 5/8 1/2 5116 1/4 0

.... . . . . . . . . . . . . . . . ...........°................. ......................°...... . ...° ° .. . ... .. ... ... ,. ...

NO CEIL I 47.3 45.4 49.8 SU.3 50.6 50.6 50.7 50.7 50.7 50.7 50.7 50.7 50.7 SO.7 50.7 50.7

GE 200001 51.1 53.3 53.7 54.3 54.7 54.7 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9.! 180001 51.2 53.4 53.8 54.46 54.8 54.6 55.0 55.0 55.0 55.0 55.0 55.0 55.0 55.0 55.0 55.0

GE 16001C 51.3 53.4 53.9 54.4 54.9 54.9 55.0 55.0 55.0 55.0 55.0 55.r 55.0 55.0 55.0 55.0

GE 140001 52.0 54.2 54.7 55.3 55.7 55.7 55.8 55.8 55.8 55.8 5S.8 55.8 55.8 55.8 55.8 55.8

GE 120001 54.2 56.4 57.0 57.6 58.0 58.1 58.2 50.2 58.2 58.2 5A.? 58.2 58.2 58.2 5R.2 58.2

GE 100009 58.7 61.4 62.0 62.7 63.2 63.3 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4

GE 90C0O 59.0 61.1 62.4 63.0 63.7 63.7 63.8 63.8 63.8 63.8 6!.9 63.8 63.8 63.8 63.8 63.8GE 8000 63.0 66.1 67.0 67.6 68.3 68.4 68.5 68.5 68.5 68.5 6q.5 68.5 68.5 68.5 6P.5 6d.5GE 70001 65.3 68.7 69.8 70.5 71.4 71.4 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6

GE 60001 67.2 7C.8 72.1 72.8 73.8 73.9 74.0 74.o 74.0 74.0 74.0 74.0 74.0 74.0 74.0 79.0

GE 50001 71.2 75.2 76.8 77.8 79.0 79.1 79.3 79.3 79.3 79.3 79.3 79.3 79.3 79.3 7%.3 79.3

GE 45001 74.8 79.2 81.0 81.9 83.3 83.3 83.5 83.6 83.6 83.6 83.6 83.6 83.6 93.6 83.6 83.6GE 400C 77.7 82.4 84.4 85.5 87.0 87.1 87.4 87.5 87.5 87.5 87.5 87.5 87.5 87.5 87.5 87.5GE 3OI 79.8 84.8 87.0 88.1 89.7 89.8 90.? 9U.3 90.3 90.3 90.3 90.3 90.3 90.3 99.3 93.3GE 30001 81.5 87.0 89.4 90.8 92.8 92.9 93.4 93.5 93.5 93.6 93.6 93.6 93.6 93.6 93.6 93.6

GE 25009 82.1 87.7 90.2 91.5 93.6 93.7 94.2 94.4 94.4 94.4 94.4 94.4 94.5 Q4.5 94.5 94.5GE 2C00 82.4 88.2 90.6 92.2 94.3 94.4 94.9 95.2 95.2 95.2 95.3 95.3 95.3 95.3 95.3 95.3GE l8UOCI 82.5 88.3 90.9 92.3 94.4 94.5 95.1 95.3 95.3 95.4 95.4 95.4 95.4 95.4 95.4 95.4

GE 15001 82.5 88.5 91.1 92.5 94.7 94.8 95.4 95.7 95.7 95.8

95.8 95.8 95.8 95.8 95.8 95.8

BE 12001 82.6 88.7 91.3 92.8 95.0 95.2 95.9 96.1 96.2 96.2 96.3 96.3 96.3 96.3 96.3 96.3

GE 10Ou1 82.8 89.2

92.0 S3.5 96.0 96.2 97.0 91.3 97.3 Q7.4 97.5 97.5 97.5 97.5 97.5 97.5GE 9001 82.8 89.3 92.3 93.8 96.3 96.5 97.5 97.8 97.8 97.9 90.0 98.0 98.0 98.0 98.0 98.0

GE 8009 82.8 89.4 92.4 93.9 96.5 96.7 97.8 98.2 98.2 98.3 98.3 98.3 98.4 98.4 98.4 98.4(.E 7001 82.8 89.6 92.6 94.2 96.8 97.1 98.1 98.5 98.6 98.7 9R.7 98.7 98.8 98.8 98.8 98.8GE 6001 82.8 89.7 92.8 94.5 97.1 97.3 98.4 96.9 98.9 99.0 99.1 99.1 99.1 99.1 99.1 99.1

GE SEI 82.8 89.7 92.9 94.6 97.3 97.5 98.7 99.2 99.3 99.4 99.5 99.5 99.5 99.5 99.5 99.5GE 9C)| 82.8 89.7 92.9 94.6 97.3 97.5 98.7 99.3 99.4 99.5 99.6 99.6 99.6 99.6 99.6 99.6GE 3001 82.8 89.7 93.0 94.7 97.3 97.6 98.8 99.4 99.5 99.6 98.8 99.8 99.8 99.8 99.8 99.8GE zo 82.8 89.7 93.0 94.7 97.3 97.6 98.8 99.5 99.5 99.7 99.8 99.8 99.9 99.9 99.9 99.9

GE loci 42.8 89.7 93.0 94.7 97.3 97.6 99.8 99.5 99.5 99.7 99.8 99.8 99.9 99.9 99.9 100.0

GE CJ 82.8 89.7 93.0 94.7 97.3 97.6 98.8 99.5 99.5 99.7 99.4 99.8 99.9 99.9 99.9 100.0


0L

GLCOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICh NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: ?a-87MONTH: OCT HOURSiLS1I: 0000-0200


N I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE LEFLET I 10 6 5 4 3 2 112 2 1 112 1 114 1 3/4 5/8 1/2 5116 I/4 0

..............................................................................................................................................

NO CEIL 1 44.0 45.2 4S.b 45.6 45.7 45.9 45.9 '5.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9

GE 200001 48.0 49.2 49.6 49.6 49.9 50.1 50.1 50.1 50.1 $0.1 50.1 50.1 50.1 50.1 50.1 50.1GE 180001 48. I 49.4 49.9 49.9 50.0 50.2 50.2 50.2 50.2 50.2 50.2 50.2 50.2 50.2 59.2 50.2GE 16n0CI 48.1 49.4 49.9 49.9 50.0 50.2 50.2 5J.2 50.2 50.2 50.2 51.2 50.2 5C.2 5f.2 50.2GE 140001 '8.1 49.4 49.9 49.9 50.0 50.2 50.2 50.2 50.2 50.2 50.2 50.2 50.2 50.2 50.2 5G.2GE 120001 50.0 51.3 51.8 51.8 51.9 52.2 52.2 52.2 52.2 52.2 52.2 52.2 52.2 52.Z 52.2 52.2

GE 0oouC1 53.5 55.1 55.8 55.8 56.0 56.2 56.2 56.? 56.? 56.2 56.2 56.2 56.2 56.2 56.2 56.2GE 90001 54.0 55.5 56.2 5b.2 S6.5 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56,7 56.7 56.7 56.7GE 800I 58.4 6C.1 bl.3 61.3 61.6 61.8 61.8 61.8 61.8 61.8 61.A 61.6 61.8 61.8 61.8 61.8GE 70001 61.5 63.3 64.5 64.5 64.8 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 C5.1GE 60001 64.2 66.6 67.8 67.8 68.2 68.4 64.4 66.4 68.4 68.4 68.4 68.4 68.4 68.4 64.4 68.4

GE soCI 70.3 73.0 74.4 74.4 74.1 74.9 74.9 74.9 71.9 74.9 74.9 74.9 74.9 74.9 74.9 74.9GE 45001 75.5 79.0 80.9 80.9 81.5 81.7 81.7 81.7 61.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7GE 400CI 77.7 81.8 83.7 83.7 84.3 84.5 84.7 84.7 84.7 84.7 8.7 84.7 84.7 R4.7 84.7 P4.7GE 35001 79.6 83.8 85.6 85.6 86.2 86.5 86.7 86.7 86-7 86.7 86.7 66.7 86.7 86.7 86.7 86.7GE 30001 82.0 66.8 89.0 89.1 90.1 90.3 90.5 90.5 90.5 9D.5 90.5 90.5 90.5 9C.5 91.S 90.5

GE 25001 84.1 89.5 91.7 91.8 93.0 93.2 93.4 93.4 93.4 93.4 93.4 93.4 93.4 q3-4 91.4 93.4GE 20001 85.1 9c.8 93.0 93.4 94.7 94.9 95.2 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5GE 18001 65.1 9G.9 93.1 93.7 95.3 95.5 95.7 96.0 96.0 96.0 96.0 96.0 96.0 96.0 96.0 96.0

GE 150 1 85.4 91.2 93.4 94.o 95.7 95.9 96.2 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6GE 12OC1 85.4 91.4 93.7 94.2 95.9 96.1 96.5 96.7 96.9 96.9 96.9 96.9 96,9 96.9 96.9 96.9

GE 10001 85.4 91.4 93.7 94.2 96.0 96.2 96.6 97.0 97.0 97.2 97.2 97.2 97.2 97.? 97.2 97.2GE 9U01 85.5 91.5 93.9 94.4 96.2 96.5 96.8 97.2 97.2 9'.4 97.4 97.4 97.4 97.4 97.4 97.4GE 80CI 85.5 91.8 94.2 94.7 96.6 96.8 97.1 97.6 97.6 97.8 97.8 97.8 97.8 97.8 97.8 97.8GE 70c0 85.5 91.9 94.3 94.8 96.7 96.9 97.2 977 97.7 98.0 96.0 98.0 98.0 98.0 98.0 98.0GE 60C1 85.5 92.0 94.4 94.9 96.8 97.0 97.3 97.8 97.8 98.1 98.1 98.1 98.1 9e.1 9R.1 98.1

GE 5001 85.5 92.0 94.4 95.1 96.9 97.1 97.4 98.0 98.1 98.3 96.3 98.3 98.3 90.3 98.3 98.3GE qcI 85.5 92.0 94.4 95.2 97.0 97.2 97.6 98.2 99-3 98.5 98.5 98.5 98.5 98.5 99.5 98.5GE 3001 85.5 92.0 94.4 95.2 97.4 97.6 98.1 9R.9 99.1 99.6 99.6 99.6 99.7 99.1 99.8 99.8GE 20CI 85-5 92.0 94.4 95.2 97.4 97.6 98.1 95.9 99.1 99.7 9-.7 99.7 99.8 99.8 99.9 99.9GE loci 85.5 92.0 94.4 95.2 97.4 97.6 98.1 98.9 99.1 99.7 99.7 99.7 99.8 99.9 100.0 0(j.0

GE Cl 85.5 92.0 94.4 95.2 91.4 97.6 96.1 98.9 99.1 99.7 99.7 99.7 99.8 99.9 100.0 100.0

................................................................................................ ..............................................


-A

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY


AI. WEATHER SEpVICE/MAC

STA7ION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFS NY PERIOO OF RECORD: 78-87

MONTH: OCT HOURSILSTI: 0300-0500


IN I L GE GE GE GE GE GL GE GE GE GE GE GE GE GE GE

FEET 1o b 5 4 3 2 1/2 2 1 1/2 i 1/i 1 3/4 5B 1/2 5/16 1/4 0

NO CEIL 1 44.2 46.1 46.2 46.2 46.5 46.5 46.6 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7

GE 200001 47.5 49.7 49.8 49.8 50.0 50.0 50.1 50.2 50.2 50.2 50.2 S.? 50.2 .5C2 50.2 50.2GE 1OO001 48.1 50.2 50.3 50.3 50.5 50.5 50.6 50.8 50.8 50.8 50.8 50.8 50.8 50.8 50.8 5,.8GE 163001 4S.I 5C.2 50.3 50.3 50.5 50.5 50.6 50.8 50.8 50.8 50.8 50.8 50.8 50.8 50.8 50.8

GE 1400C 48.3 5C.4 50.5 50.5 50.8 50.8 50.9 S1.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0

GE 120MO1 So.2 52.4 52.5 52.5 52.7 52.7 52.8 S2.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9

GE IO00C 52.7 54.8 54.9 54.9 55.2 55.2 55.3 55.4 55.4 55.4 55.4 5S.4 55.4 55, 55.4 55.4

GE 90001 53.0 55.2 55.3 55.3 55.5 55.5 55.6 55.7 55.7 55.7 55.7 55.7 55.7 55.7 S5.7 55.7

GE 80001 57.0 59.4 59.6 59.7 60.2 60.2 60.3 60.4 60.4 60.4 60.4 6G.4 60.4 60.4 60.4 60.4

GE 700C 60.0 62.5 63.0 63.1 63.8 63.8 63.9 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0GE 60001 62.4 64.9 65.7 65.8 66.5 66.5 66.6 66.7 66.7 66.7 66.7 66.7 66.7 66.7 66.7 0t.7

GE 500CI 66.8 69.5 7n.3 70.4 71.1 71.1 71.2 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3

GE 410Ci 73.0 76.3 77.3 77.4 78.2 78.2 18.3 78.4 78.4 78.4 78.4 78.4 78.4 78.4 79.4 78.4

GE 400C 76.9 8C.6 82.2 82.3 83.1 83.1 83.2 83.3 83.3 83.3 87.3 83.3 83.3 43.3 83.3 83.3

GE 35001 79.0 82.8 84.5 84.6 85.5 85.5 85.6 85.7 85.7 85.7 8S.7 85.7 85.7 85.7 85.7 85.76E 300CI 80.8 85.3 87.6 87.8 89.1 89.1 89.4 89.6 89.6 89.6 80.6 89.6 89.6 P9.6 89.6 89.6

GE Z50CI 82.3 87.4 89.9 90.1 91.5 91.5 91.9 92.2 92.2 92.2 92.2 92.2 92.2 92.2 92.2 92.2

GE 200C) 82.8 88.3 91.0 91.3 92.8 92.9 93.5 93.9 93.9 93.9 93.9 93.9 93.9 93.9 93.9 93.9

GE 18CO9 82.8 88.4 91.3 91.6 93.1 93.2 9!.9 94.3

94.3 94.3 94.3 94.3 94.3 94.3 94.3 94.3GE ISO0 83.4 89.2 92.2 92.5 94.0 94.1 94.7 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3

GE 12009 83.4 89.5 92.4 92.7 94.2 94.3 94.9 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5

GE I1OCI 83.7 89.7 92.7 93.0 94.5 94.6 95.3 95.8 95.8 95.8 9r.8 95.8 95.8 95.8 95.8 05.8

GE 900l 83.8 81.8 92.8 93.1 94.6 94.7 95.5 96.1 96.1 96.1 96.1 96.1 96.1 96.1 96.1 96.1GE 8009 83.8 90.0 93.1 93.5 95.3 95.4 96.2 96.9 96.9 96.9 96.9 96.9 96.,9 6.9 96.9 96.9

GE 70CI 83.9 9C.3 93.4 93.9 95.6 95.7 96.7 97.3 97.3 97.3 97.3 91.3 97.3 97.3 97.3 97.3

GE 6uC 83.9 9r.3 93.5 94.0 95.7 95.8 96.8 97.4 97.4 97.4 97.4 97.4 97.4 97.4 97.4 97.4

GE 50C 83.9 90.3 93.5 94.1 95.8 95.9 97.0 ,7.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7

GE 4009 83.9 9C.4 93.7 94.2 95.9 96.0 97.3 94.1 98.1 98.1 98.1 98.1 98.1 98.2 98.2 98.2GE 3001 83.9 9C.4 93.7 94.2 95.9 96.3 97.4 98.3 98. 98.8 98.8 98.8 98.8 99.0 99.4 99.4

GE 20C 83.9 9C.4 93.7 94.2 96.0 96.1 97.5 9J.4 98.4 99.1 99.2 99.2 99.2 99.5 99.8 99.8

GE loci 83.9 90.4 93.7 94.2 96.0 96.1 97.5 98.4 93.4 99.1 99.2 09.2 99.2 99.5 103.0 I1O.c

GE CI 83.9 9C.4 93.7 94.2 96.0 96.1 97.5 98.4 98.4 09.1 99.7 99.2 99.2 99.5 100.0 100.0


I.... ,, ,-,, m __ .a , . l,..--l ~--..

GLEBAL CLIMATOLOGY RRANCH PERCENTAGE FREQUENCY OF OCCURPE4CE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

All, WEATHER SERVICE/MAC

STATION NUMBER: 726225 5TATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87

MONTH: OCT HOURS(LS7I: 0600-0800

CEILI V5SIBLITY IN S1ATUIE MOLES

IN GE GE GE GE GE GE DL GE GE GE GE GE GE GE GE GEFEET I 0 6 5 4 3 2 112 2 I 1/2 1 1/4 1 314 5/8 1/ 5/16 1/4 0

NO CEll I 38.2 3e.6 39.0 39.1 39.2 39.2 39.4 39.4 39.5 39.6 39.6 34.6 39.7 3S.8 '4.0 q .0

GE 2000C1 41.3 41.7 42.Z 42.5 42.6 42.6 42.7 42.7 42.8 42.9 42.9 42.9 43.0 43.1 43.3 43.3C GE IsOCi 41.5 o 1.9 42.5 42.b 42.9 42.9 43.0 43.0 43.1 43.2 43.2 43.2 43.3 43.4 43.7 43.7

E 1600CI 4 .7 42.2 42.7 43.0 43.1 43.1 43.2 43.2 43.3 43.4 43.4 43.4 43.5 43.7 4,.9 43.9

GE 140 01 42.2 42.6 43.1 43.4 43.5 43.5 43.7 43.7 43.8 43.9 43.9 43.9 44.0 44.1 44.3 44.3

GE 12GoCI 44.4 44.9 45.5 45.6 45.9 45.9 46.0 46.0 46.1 46.2 46.2 46.2 46.3 46.5 46.7 46.7

GE 1000ci 48.6 49.4 50.2 50.5 50.8 50.8 50.9 50.9 51.0 51.1 51.1 1 1.1 51.2 51.3 5.5 1.5GE 90UOI 49.5 S,2 51.1 51.5 51.7 51.1 51.8 51.8 51.9 52.0 52.0 52.0 52.2 2-3 52-5 52.5GE 800C 54.2 55.1 56.0 56.5 56.9 56.9 57.1 57.1 57.2 57.3 57.3 57.3 57.4 57.5 57.7 57.7GE 700C1 57.0 57.8 58.9 59.4 59.8 59.8 60.1 60.1 60.2 60.3 60.3 60.3 60.4 6C.5 60.8 60.8LF 600CI 59.2 6C.2 61.3 61.7 62.3 62.3 62.6 62.6 62.8 62.9 62.9 62.9 63.0 13.1 63., 63.3

GE 500C 62.8 6q.I 65.5 65.9 66.5 bb.5 66.8 66.8 67.0 67.1 67.1 67.1 67.2 67.3 67.5 67.5GE 45CCI 69.n 7C.3 71.9 72.4 72.9 72.9 73.2 73.2 73.4 73.S 73.5 73.5 73.7 73.8 74.0 74.0

GE 400CI 73.5 75.4 77.1 77.6 78.3 78.3 78.6 78.6 78.8 78.9 78.9 78.9 79.0 79.1 79.4 79.4

GE 35CC 1 77.7 7.8 81.8 82.4 83.0 83.0 83.3 83.3 8 .5 83.7 83.7 83.7 83.8 83.9 84.1 84.1GE 300CI 80.8 84.0 86.3 87.1 87.8 87.8 88.6 88.6 88.8 88.9 89.r 89.0 89.1 P9.2 89.5 89.5

GE 25001 81.5 85.1 87.4 86.2 88.9 88.9 89.9 90.0 90.2 90.4 90.5 91.5 90.6 90.8 91.0 91.0GE 20U01 82.0 35.7 88.2 88.9 89.8 89.8 90.8 91.0 91.3 91.5 91.6 91.6 91.7 91.8 92.0 92.0GE I

8UCI 82.0 85.9 88.4 89.1 90.0 90. 1 91 .1 91.3 91.6 91.8 91.9 91.9 92.0 92.2 9'.4 92.4

bE 150CI 82.4 86.5 89.1 89.9 90.8 90.9 91.8 92.2 92.5 92.7 92.8

92.8 92.9 93.0 93.2 93.2GE 12001 82.4 86.5 89.6 90.3 91.2 91.3 92.3 92.6 92.9 93.1 93.2 93.2 93. 3 93.4 93.7 93.7

GE I0OC1 82.5 86.b 89.6 90.5 91.6 91.7 93.1 93.5 94.0 94.2 94.3 94.3 94.4 94.5 94.7 94.7GE 9001 82.6 86.7 89.9 90.6 91.7 91,8 93.2 93.7 94.1 94.6 94.7 94.7 94.8 94.9 95.2 95.2GE 80B1 82.7 86.8 90.0 90.8 91.9 92.0 93.5 94.0 94.4 94.9 95.1 95.1 95.2 95.3 95.5 95.5GE 70C

I 82.7 86.8 90.0 90.4 91.9 92.0 93.5 94.0 94.4 94.9 95.1 95.1 95.2 95.3 95.5 95.5

GE 60CI 82.7 86.8 90.1 90.9 92.0 92.2 93.9 94.3 94.7 95.4 95.5 95.5 95.6 95.7 9".9 95.9

GE 5GC1 83.0 81.2 90.5 91.3 92.9 9 .U 95.1 95.6 96.0 06.9 97.0 97.0 97.1 97.2 97.4 97.4GE 4QC0 83. n 87.2 90.5 91.3 92.9 93.1 95.2 95.7 96.1 97.1 97.3 97.3 97.4 97.5 98.0 98.0GE 3001 83.1 87.3 90.6 91.4 93.2 93.4 95.S 96.1 96.7 97.7 98.3 93.3 98.4 98.5 99.1 99.4GE 2UC1 83. 1 87.3 90.6 91.4 93.2 93.4 95.5 96.1 96.7 97.7 98.3 98.3 98.4 98.5 99.2 99.7GE 1OCi 83.1 87.3 90.6 91.4 93.2 93.4 95.5 96.1 96.7 97.7 98.3 98.3 98.5 08.6 99.4 100.0

GE C1 83.1 87.3 90.6 91.4 93.2 93.4 95.5 96.1 96.7 97.7 98.3 98.3 98.5 98.6 99.4 100.0

TOlAL NUMBER OF OBSERVATIO4S: 930

0

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Or CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR Ny PERIOD OF RECORD: 78-87MONTH: OCT HOURSILSTI: 0900-1100

CEILING VISIBILITY IN STATUTE MILESIN i GE GE GE GE GE GE GL GE GE GE GE Gt GE GE GE GE

FLET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/41 5j 112 S116 1/4 0.. ................................................................... .................... ......... .........................

NO CEIL 1 37.8 3e.8 38.9 !8.9 39.0 39.0 39.0 39.0 39.0 39.0 39.0 39.0 39.0 39.0 39.0 39.0

GE 200001 42.7 43.9 44.1 44.1 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2GE I8AOCI 42.9 44.1 44.3 44.3 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44, 44.4 44.4 44.4GE 1600C1 42.9 44.1 44.3 44.3 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4GE 1400 q4.2 45.4 45.6 45.6 45.8 4S.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 5.8 45.8 45.8GE 120011 46.0 41.2 47.4 47.4 47.6 47.6 47.6 43.6 47.6 47.6 4?.6 47.6 47.6 47.6 47.6 A1.6

GE 100OC| 48.9 5C.4 50.9 50.9 51.3 51.3 51.3 51.3 51.3 SI.3 51.3 51.3 51.3 51.3 51.3 51.3GE 90001 49.2 5G.8 51.2 51.2 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6GE BOUCI 52.9 54.4 54.8 54.8 55-5 55.5 55.5 55.5 SS.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6GE 70C 56.0 57.5 58.0 58.0 58.9 58.9 58.9 58.9 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0GE 60001 58.5 6C.1 60.5 60.5 61.5 61.5 61.5 61.5 61.6 61.6 61.6 61.6 61.6 61.6 62.6 AI.b

G 50001 61.5 63.3 63.9 63.9 64.8 64.8 64.8 64.8 b4.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9GE 450C 67.0 68.9 69.6 69.6 70.5 70.5 70.5 7o.5 70.6 70.6 70.6 70.6 70.6 70.6 70.6 70.6GE 4o01 74.2 77.2 77.8 77.8 78.9 78.9 79.2 79.2 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4GE 35001 77.6 81.8 81.6 81.7 82.8 82.8 83.1 83.1 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2GE 30001 82.3 86.0 87.2 87.7 88.9 88.9 89.4 89.4 89.5 R9.5 89.5 99.5 89.5 . .89.5 A9,5

GE 2501 83.4 87.3 88.8 89.4 90.9 90.9 91.3 91.3 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4GE 2UO01 84.0 88.0 89.6 90.1 91.8 91.8 92.3 92.4 92.5 92.6 92.6 92.6 92.6 92.6 92.6 92.6GE 18001 8.1 88.1 89.7 90.2 91.9 91.9 92.5 92.6 92.7 92.8 92.8 92.8 92.8 92.8 92.8 92.8GE 15001 84.4 88.4 90.2 90.9 92.6 92.6 93.1 93.2 93.4 93.5 93.5 93.5 93.5 93.5 93.5 93.5GE 120CI 84.4 88.6 90.4 91.1 92.8 92.8 93.3 93.4 93.7 93.8 93.p 93.6 93.8 93.e 93.8 93.8

GE 1000 84.8 89.0 91.0 91.6 93.3 93.4 94.0 94.1 94.3 94.4 94.4 94.4 94.4 94.4 94.4 94.4GE 9001 84.8 89.1 91.1 91.9 93.7 93.8 94.3 94.4 94.7 94.8 94.8 94.8 94.8 94.8 94.8 94.8GE 80 84.9 85.2 91.3 92.2 94.1 94.2 94.7 94.9 95.4 95.5

9S.5 95.5 95.5 95.5 95.5 95.5

GE 70C1 84.9 89.4 91.5 92.5 94.4 94.5 95.2 95.4 95.P 95.9 9S.9 95.9 96.1 96-1 96.1 96.1GE 60C1 84.9 89.4 91.6 9Z.6 94.5 94.6 95.4 95.6 96.2 96.3 96.3 96.3 96.6 96.6 96.6 96.6

GE 50u 84.9 89.4 91.6 92.6 94.5 94.6 95.5 95-7 96.6 96.7 96.7 96.7 96.9 96.9 96.9 96.9GE 4001 84.9 85.4 91.6 92.6 94.7 94.9 95.9 96.5 97.5 97.7 97.7 97.7 98.0 98.0 98.0 98.0GE 3001 84.9 89.4 91.6 92.6 94.8 95.1 96.2 96.9 98.2 99.0 99.0

99.0 99.4 99.4 99.4 99.4

GE 20C 84.9 89.4 91.6 92.b 94.9 95.2 96.3 97.n 98.3 Q9.1 99.2 99.4 99.7 99.7 99.7 99.7GE 1001 84.9 84.4 91.6 92.6 94.9 95.2 96.5 97.1 98.4 99.2 99.4 99.5 99.8 99.8 99.8 99.8

GE CI 84.9 8S.4 91.6 92.6 94.9 95.2 96.5 97.1 98.4 99.2 99.4 99.5 99.8 99.8 99.8 100.0

...........................................................................................................................

TOTAL NUMBER OF O8SERVAIOPS: 930

AW

GLLBAL CLIMA7OLOGV BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS VISIBILITUSAFETAC FROM HOURLY OBSERVATTONS

Als WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFR Ny PERIO0 OF RECORO: 78-87

MONTH: OCT HOURSILSI: 1200-1400

..................................................................................................................................CE ILINiG VISIPILITY IN STATUTE MILES

IN i GC GE GE oE GE GE GE GE GE GE GE GE GE GE GE GI

FEET I 6D 6 5 9 3 2 112 2 1 1/2 1 119 1 3/4 518 t12 S/16 1/4 0

NO CEIL 1 38.7 3S.7 39.7 39.7 -0.0 4O.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 4C.0

GE 200001 93.4 49.5 49.6 99.6 99.9 44.9 99.9 9(.9 49.9 9s.

9 44.9 44.9 44.9 44.9 14.9 44.9

"E 180001 93.5 99.7 99.8 99.8 45.2 45.2 95.2 45.2 95.2 95.2 95.2 95.2 95.2 95.2 45.2 95.2GE 160001 93.8 9t.9 95.1 45.1 95.9 45.9 45.4 95.9 95.4 5.4 5.4 95.9 95.9 95.9 45.4 45.4

GE 190001 44.5 95.7 95.8 95.8 46.1 46.1 9 6.1 96.1 96.1 96.1 96.1 96.1 96.1 96.1 46.1 46.1

GE 1200C0 95.3 96.6 96.7 96.7 47.0 97.0 9 97.0 97.0 97.0 97.0 97.0 97.0 97.0 97.0

97.0 97.0

GE IOUCI 99.1 99.8 99.9 99.9 50.2 50.2 50.2 5J.2 50.2 50.2 5n.2 5C.2 50.2 5C.2 50.2 60.2

GE 900C1 98.7 5C.9 50.5 50.5 60.9 50.9 50.9 Sj.9 50.9 50.9 50.9 50.9 50.9 50.9 So.9 5.9

GE 8000C S2.9 59.3 59.9 5.4 55.2 55.2 55.7 55.2 55.2 55.2 51.2 66.2 55.2 95.2 55.2 55.2GE 70GCI 55.9 57.7 58.0 "9.0 58.7 58.7 68.7 58.7 58.7 58.7 58.7 58.7 58.7 58.7 58.7 58.7GE 600) 58.7 61.2 61.6 61.7 62.S 62.5 62.5 62.5 b2.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5

GE 50001 62.3 65.1 65.5 65.6 66.5 66.56 66.6 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5

GE 9500c 67.9 71.1 71.5 71.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 74.6GE 40001 75.8 79.9 80.9 80.5 81.6 81.8 81.8 81.8 81.8 91.8 8).8 81.8 81.8 P1.8 81.8 81.6GE 35001 78.9 83.3 89.0 89.1 85.1 85. 85.5 85.5 855 5

5 85.5 85.5 85.5 F5.5 85.5 85.5

GE 30001 89.9 85.9 90.6 90.8 92.0 92.3 92.9 92.9 92.9 92.,9 92.9 92.9 92.9 92.9 92.9 92.9

GE 25UCI 85. 9C.6 92.2 92.3 93.5 93.8 93.9 93.9 93.9 93., 93.9 93.9 93.9 93.9 93.9 93.9GE 2000C 86.0 91.4 93.2 93.3 99.9 95.2 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3

GE 18001 86.1 91.5 93.3 93.9 95.1 95.3 95.9 95.9 95.4 95.4 95.4 95.9 96.9 95.9 95.9 95.9

GE 15001 86.2 91.6 93.5 93.7 95.3 95.5 95.6 95.6 95.6 95.6 95.6 95.6 95.6 9S.6 95.6 95.6GE 120C1 86.3 91.7 93.8 1;3.9 95.5 95.7 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8

GE 10I01 86.6 92.2 99.9 94.5 96.1 96.3 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5

GE 9LOI 86.6 9i.4 95.1 95.2 96.9 97.1 97.3 97.9 97.4 97.9 97.9 97.9 97.9 97.9 97.19 97.9GE 80CI 86.6 92.9 95.1 95.2 97.0 97.2 97.5 97.6 97.6 97.6 6 97.6 97.6 97.6 97.6 97.6

GE 70C0 86.7 92.6 95.9 95.5 97.9 97.6 98.2 98.3 98.3 98.3 919.3 98.3 98.3 98.3 99.3 98.3

GE 6L0 86.7 92.6 9S.9 95.5 97.4 97.7 98.3 98.5 98.5 98.5 99.5 91.6 98.6 98.b 95.6 98.6

GE 5 01 86.7 92.6 95.9 95.5 97.5 98.1 98.6 99.0 99.0 99.0 90.0 99.1 99.1 99.1 99.1 99.1

GE 9001 86.7 92.6 95.9 95.5 97.5 98.2 98.7 94.5 99.5 99.6 99.6 99.7 99.7 99.7 99.7 99.7GE SOC1 86.7 92.6 95.9 95.5 97.5 98.2 98.7 99.5 99.5 99.6 99.6 99.7 99,7 99.7 99.7 99.7GE 20C 86.7 92.6 95.9 95.5 97.5 96.2 98.7 99.8 99.8 99.9 99.9 10C.0 100.0 100.0 100.0 1O.O

GE IUC 86.7 92.b 95.4 95.5 97,5

98.2 98.7 99.8 99.8 99.9 99.9 10C.0 100.0 100.0 100.0 100.0

GE 01 86.7 92.6 95.9 95.5 97.5 98.2 98.7 99.B 99.8 09.9 99.9 100.0 100.0 100.0 100.0 10C.0


GLiAAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726Z25 STATICN NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: 78-A7

MONTH: OCT HOURSILSI): 1500-1700

CE ILING VISIBI]LITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 N 3 1 112 2 1 112 1 114 I 3/4 5/8 112 5/16 1/ 0

NO CEIL 1 41.3 N1.9 42.3 82.3 42.6 N2.6 %2.6 N2.6 N2.6 N2.6 N2.6 N2.6 42.6 42.6 N2.6 42.6

GE 200001 46.6 87.2 N7.5 87.5 87.8 N7.8 N7.8 .8 N7.8 47.8 7.8 N7.8 N7.8 N7.8 N7.8 N7.8GE 1800c| 46.9 47.5 67.8 N7.8 4 N. N8.2 .2 NA.2 NB.? NB.2 Nq.2 N82 48.2 N8.2 N8.2 N8.2

GE 1600C 1 N7.1 N 7.7 N8.1 88.1 N8.N N8. N 8.N 48.4 N8. N8.N N8.N 48.4 N8.N N8.N N9.4 N8 .NGE 1400C 1 N7.7 N8.5 88.8 88 N9.1 N

9.1 89.1 N9.1 N9.1 89.1 N9.1 9.1 N9. 4N. 49Y.1 9.1

I.E 120001 69.8 50.5 50.9 50.9 51.2 51.2 51.2 51. 2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 S1.2

GE 1900CI 52.8 53.7 SN.0 54.o 54.N 5N.N 5.N 5.N 5. 5.N 58.8 5.N 54.N 54. 54.N 54.N

GE 93001 538 SN.7 55.2 55.2 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6GE A0001 57.1 58.8 59.#

5 9.N 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 59.9 S9.9 59.9 59.9

GE 70001 60.5 62.3 63.2 63.2 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9 63.9

GE 600CI 63.1 65.2 66.2 66.3 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.0 67.G 67.0 67.C

GE 50001 66.6 68.8 69.9 70.0 70.8 70.8 70.8 70.8 70.8 70.8 7n.8 7G.8 70.8 70.8 70.8 70.8GE N50C1 71.5 74.2 75.5 75-7 76.5 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6GE NOOCI 78.8 81.8 83.2 83.4 8N .2 84.3 8N.3 8N.3 8N.3 8N.N 84.N 84.N 814.N 8N.N 84.4 AN.NGE 350CI 82.5 85.6 87.1 87.3 88.N 88.5 88.5 88.5 88.s 98.6 88.6 88.6 88.6 88.6 68.6 88.6

(. 300CI 88.1 92.2 93.7 93.9 95.2 95.3 95.3 95.3 95.3 95.N 9.4 95.4 95.N 95.N 95.4 95.4

GE 2500 88.N 92.6 94.2 9N.N 95.8 95.9 95.9 95.9 95.9 96.0 96.0 96.0 96.0 96.0 96.0 96.0GE 200C0 88.5 92.8 98.5 98.9 96.6 96.7 96.7 96.8 96.8 96.9 96.9 96.9 96.9 96.9 96.9 96.9GE 180C1 88.6 92.9 98.6 95.1 96.7 96.8 96.8 96.9 96.9 97.0 97.0 97.0 9?.0 97.C 97.c 97.:GE 15001 88.9 93.2 98.9 95.5 97.2 97.3 97.3 97.8 97.4 97.5 97.

5 97.5 97.5 97.5 97.5 97.5

GE 12001 88.9 93.3 95.1 95.6 97.8 97.5 97.5 97.6 97.6 97.7 97.7 97.7 97.7 97.7 97.7 97.7

GE 10001 89.0 93.8 95.6 96.3 98.2 98.3 98.3 98.8 98.8 98.5 98.5 98.5 98.5 98.5 98.5 98.5GE 9LGI 89.0 98.0 95.8 96.6 98.5 98.7 98.7 98.8 98.8 98.9 9.9 98.9 98.9 98.9 98.9 98.9

GE 80CI 89.0 98.1 95.9 96.7 98.7 98.9 98.9 99.0 99.0 99.1 99.1 99.1 99.1 99.1 99.1 99.1GE 7U01 89.0 98.1 95.9 96.7 98.7 98.9 98.9 99.0 99.0 99.1 99.1 99.1 99.1 99.1 99.1 99.1GE 6001 89.0 98.1 95.9 96.7 98.7 98.9 9f.9 99.0 99.0 99.1 9Q.1 99,1 99.1 99.1 99.1 99.1

6E SCI 89.0 94. 96.0 96.8 98.9 99.1 99.1 99.2 99.8 q9.5 99.5 99.5 99.5 99.5 99.5 99.5

GE N001 89.0 98.2 96.0 96.8 98.9 99.1 99.1 99.2 99.N 99.7 99.7 99.7 99.7 99.7 99.7 99.7GE 3001 89.0 98.2 96.0 86.8 98.9 99.1 99.2 99.8 99.6 19.9 99.9 99.9 99.9 99.9 99.9 99.9bE 2Cu0 89.0 98.2 96.0 96.8 98.9 99.1 99.2 99.8 99.7 lnor 100.T 100.0 100.0 100.0 100.0 100.0

GE IC0 89.0 98.2 96.0 96.8 98.9 99.1 99.2 99.8 99.7 1IO 100.0 300.0 100.0 101.0 10.0 300.0

GE CI 89.0 94.2 96.0 96.8 98.9 99.1 99.2 99.8 99.7 100.0 100.0 100.0 100.0 I.0 300.0 100.0


GLERAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AI WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: T8-B7MONTH: OCT HOURSILSTI: I8002000

............................................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN IGE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET 1 10 6 5 4 3 2 112 2 1 112 1 1/ 1 39 5/8 1l2 C/16 1/1 0

NO CElL 1 46.5 46.9 46.9 46.9 47.0 47.0 47.0 47.0 47.0 47.0 47.0 4. 47.0 47.0 47.0 47.0

5E 200001 50.0 SC.5 50.5 50.5 50.6 50.6 50.6 50.6 50.6 s0.6 50.6 50.6 50.6 50.6 50.6 50.6

GE 180001 50.3 5C.9 50.9 50.9 5 1

.0

51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0 51.0GE 16PO0 50.3 SC.

9 5n.

9 50.9 51.0 51.0 51.0

5 1.o 61.0 $1.0 51.0 51.0 51.0 51.0 51.0 51.0

GE 140CI 51.5 52.4 52.4 52.4 525 52. 5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5GE IZo00 53.0 53.9 53.9 53.9 54.0 S4.O 54.0 54.0 54.0 54.0 5N.0 54.0 54.0 54.O 54.0 54.0

GE IO0001 56.7 51.8 57.8 57.8 58.0 S8.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0 58.0GE

900CI 57.1 58,3 58.3 58.3 58.4 58.4 58.4 58.4 58.4 58.4 64.4 68.4 58.4 58.4 54.4 58.4

GE BODES 62.5 64.0 64.0 64.0 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1GE 7oaC1 65.7 61.2 67.2 67.2 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.1 67.3 67.3GE 600U 67.6 69.2 69.4 69.4 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5

GE soaCI 71.4 73.8 74.0 74.0 71.2 74.2 14.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2CG 4Soci 75.4 78.2 78.

5 78. 78.? 78.8 78.8 78.8 7.9 78.9 78.9 78.9 78.9 78.9 78.9 78.9

GE NDOC 81.7 84.6 84.9 84.9 85.5 85.6 85.6 85.6 86.7 85.7 85.7 85.7 85.7 85.7 85.7 85.7

GE 35001 837 86.6 87.1 87.1 e8.o 88.1 88.1 88.1 88.j 48.2 88.2 88.2 88.2 88.2 88.2 86.2GE 300CI 87.3 91.0 91.7 91.7 92.7 92.8 92.8 92.8 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9

GE 250C 88.0 91-6 92.4 92.5 93.7 93.8 93.8 93.9 94.0 94.0 94.0 94.0 94.0 q4.0 94.0 94.0GE 20001 88.1 92.5 93.4 93.8 95.5 95.6 95.6 95.7 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8

GE 18UlC 88.8 92.7 93.8 94.3 95.8 95.9 95.9 96.0 96.1 96.1 96.1 96.1 96.1 96.1 96.1 96.1

GC 150C1 89.0 93.2 94.4 94.9 97.0 91.1 97.1 97.2 97.3 97.3

97.3 97.3 97.3 97.3 97.3 97.3

GE 120C 89.0 93.2 94.4 95.1 97.1 97.2 97.7 91.4 97.5 97.5 97.5 97.5 97.S Qj.5 97.5 97.5

GE 10001 89.1 93.3 94.6 95.3 97.4 97.6 97.7 98.0 98.2 98.2 98.2 98.2 98.2 98.2 98.2 o8.2GE 9001 89.1 93.3 94.6 95.4 97.5 97.8 98.0 98.2 98.4 98.5 9t.5 98.5 98.5 98.5 99.5 98.5GE 800 89.1 93.3 94.6 95.4 97.5 98.1 98.2 98.5 98.7 98.8 98.8 99.8 98.8 98.8 98.8 Q6.8GE 7005 89.1 93.3 94.6 95.4 97.5 98.1 98.2 98.5 98.7 98.8 9A.8 96.8 98. 6 98.8 9q.8 98.8GE 6UCI 89.1 93.3 94.6 95.4 97.6 98.2 98.3 98.7 98.9 O9.1 99.1 99.1 99.1 99.1 99.1 99.1

GE 50C 89.1 93.3 94.6 95.4 97.6 98.2 98.3 99.1 99.4 99.6 99.6 99.6 99.6 99.6 99.6 99.6

GE 40l 89.1 93.3 94.6 56.4 97.6 9e.2 98.3 99.1 99.q 99.6 99.6 99.6 99.6 99.6 99.6 99.6GE 300I 89.1 93.3 94.6 95.4 97.6 98.2 98.3 99.2 99.5 99.7 99.7 99.7 99.7 99.7 99.7 99.7

GE 2001 89.1 93.3 94.6 95.4 97.6 94.2 98.3 99.2 99.6 q9.8 99.8 99.8 99.8 99.8 99.8 99.8

GE 1oci 89.1 93.3 94.6 S5.4 97.6 98.2 99.3 99.2 99.6 99.9 99.9 99.9 1000 0.0o. 1o0.O 100.0

GE CI 89.1 93.1 94.6 95.4 97.6 98.2 9A.3 99.2 99.6 99.9 99.9 99.9 100.0 100.0 IGO.0 1OU.0


,.mmm1._ -



STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-B?

MONTH: OCT HOURSLSTI: 2100-2300

CEILING VISIPILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GL GE G GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 T/4 518 112 516 1/4 0

...........................................................................................................................

NO CEIL I 47.8 48.5 48.5 48.7 49.0 49.0 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.2 49.

GE 200001 51.3 52.3 52.3 52.5 52.8 52.8 63.0 53.0 53.0 53.0 53.0 53.0 53.0 53.0 53.0 53.0GE 180001 SI.5 52.5 52.5 $2.7 53.0 53.0 53.2 53.2 53.2 S3.2 53.2 53.Z 53.Z 53.2 53.2 53.2GE 160001 51.5 52.5 52.5 52.7 53.0 53.0 53.2 S3.2 53.2 53.2 53.2 53.2 53.2 53.2 53.2 53.2

GE 140001 51.9 52.9 52.9 53.1 53.4 S3-4 53.7 S3.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53.7

GE 1200CI 53.1 54.1 54.1 54.3 54.6 54.6 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8

GE 100001 57.5 58.7 58.7 58.9 59.2 59.2 59.5 59.5 59.5 59.5 59.5 59.5 59.5 59.5 59.5 59.5

GE 97001 57.8 59.2 59.2 !9-5 59.8 59.6 60.0 6D.0 60.0 60.0 60.0 6C.0 60.0 6C.0 6,). 60.0GE 80oCi 63.2 65.2 65.6 65.8 66.1 66.1 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3GE 73001 66.3 68.4 69.8 69.0 69.4 69.4 60.6 69.6 69.6 69.6 bq.6 69.6 69.6 69.6 69.6 69.6

GE 600C 68.1 7C.3 71.2 71.4 71.9 71.9 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2

GE 500C 72.5 74.7 75.7 75.9 7b.5 76.5 76.6 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8GE 45601 77.6 BE.2 81.5 81.8 82.4 82.4 82.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7GE 400cl 80.8 93.3 84.8 85.2 5.7 85.7 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0GE 3503C 82.8 B5.5 87.1 87.6 88.3 88.3 88.6 88.6 88.6 88.6 88.6 88.6 88.6 88.6 88.6 eb.6

GE 30001 85.1 88.3 89.9 90.4 91.1 1I.1 91.9 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5

GE 25LCI 86.8 9E.3 92.0 92.6 93.7 93.7 94.1 94.2 94.2 94.2 94.2 94.2 94.2 94.2 94.2 94-

GE zouCI 88.0 91.7 93.5 94.z 95.5 95.5 95.9 96.1 96.1 O6.1 96.1 96.1 96.1 96.1 96.1 96.1

GE 180 88.1 91.8 93.7 94.3 95.9 95.9 96.3 96.b 96.6 96.b 96.6 96.6 96.6 96.6 96.6 9b.6GE 15001 88.4 92.3 94.1 94.8 96.5 96.5 96.9 97.1 97.1 97.1 97.1 97.1 97.3 97.1 97.1 97.1

GE 2OC3 88.4 92.4 94.2 94.9 96.7 96.7 97.2 97.4 97.4 97.4 97.4 97.4 97.4 97.4 97.4 97.4

GE IOOCI 88.4 92.4 94.2 94.9 96.7 96.7 97.2 97.4 97.4 97.4 97.4 97.4 97.4 97.4 97.4 97.4

GE 9001 8.4 92.5 94.3 95.1 96.9 96.9 97.4 9 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.6GE 8OCI 88.4 92.5 94.3 95.1 96.9 96.9 97.5 97.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7 97.7GE 0C 1 81.4 92.b 94.4 95.2 97.0 97.o 97.7 98.1 98.1 98.1 98.1 98.1 98.1 98.1 9 .1 98.1GE 600 88.4 92.6 94.5 95.3 97.1 97.2 98.0 98.3 98.3 98.3 94.3 98.3 98.3 98.3 99.3 98.3

GE 5001 88.4 92.6 94.5 9S.3 97.1 97.2 98.0 98.5 98.6 98.6 9.6 98.6 98.6 98.6 98.6 98.6(,E 433 6B.4 92.6 94.5 95.3 97.2 97.5 98.4 98.9 99.0 99.0 99.0 99.0 99.0 99.0 99.0 99.

0

GE 3001 88.4 92.6 94.5 95.3 97.3 97.6 91.5 99.1 99.2 99.2 99.2 99.2 99.2 99.2 99.2 99.2GE 20CI 88.4 92.6

9115 q5.3 97.4 97.7 98.6 99.2 99.5 99.6 99.6 99.6 99.7 99.7 99.7 99.7

GE 100 88.4 92.6 94.5 95.3 97.4 97.7 98.6 99.2 99.5 99.6 99.6 99.6 99.8 99.9 107.0 IC0.0

GE El 88.4 92.6 94.5 Q5.3 97.4 97.7 98.6 99.2 99.5 99.6 99.6 99.6 99.8 99.9 100.0 100.0

TOTAL NUMBER OF GRSERVATIONS: 930

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS -I53BLITY



STATION NUMBER. 726225 STATION NAME: PLATTSRURGH AFB Ny PERIOD OF RECORD: 78-87

...MONTH:.OCT HOURStLSII: ALL

CCILIAGVISIBILITY IN STATUTE MjLES


FLET I 10 6 5 4 3 2 I/ z 1 1/2 I iA 1 3/4 5/8 112 5/16 1/4 D

NO CEIL 1 42.3 4J.2 13.4 43.4 43.6 43.7 43.7 43.7 43.7 43.8 43.8 43.8 43.8 43.8 43.8 43.8

GE 2000OI 46.3 47.4 47.6 47.? 47.9 47.9 47.9 4 8

.o 48.0 48.0 48.0 48.0 48.0 48.0 49.0 48.cbE 180001 46.6 47.b 47.9 47.9 48.1 48.2 48.2 48.2 48.3 4S.3 48.3 48.3 48.

3 48.3 49.3 48.3

GE 160C 1 46.7 47.7 48.0 48.0 48.2 48.3 48.3 4d.3 48.3 48.3 4R.3 48.3 48.4 48.4 4.4 48.4

GE 140001 47.3 48.4 498.6 48.7 48.9 48.9 49.0 49.0 49.0 49.) 49.0 49.0 49.0 49.1 49.1 49.1

GE 129o00 49.0 5C.1 50.3 50.4 50.6 50.6 50.7 5-7 50.7 50.7 Sn.7 50.7 50.8 50.8 50.8 50.8

GE IO0i 52.4 53.7 54.0 54.1 54.4 54.4 54.5 54.5 54.5 -4.5 54.5 54-5 54.5 54.5 54.6 54.b

GE 90001 52.9 54.3 54.6 54.7 55.0 55.0 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.2 55.2

GE 80001 57.2 58.9 59.4 S9.5 59.9 60.0 60.0 60.0 60.1 6D.1 60.1 6J.1 60.1 60.1 6C.1 bC.1bE 700C 60.3 62.1 62.7 62.8 63.3 63.3 63.4 63.4 63.5 63.5 63.5 63.5 63.5 63.5 63.5 63.5GE 600C 62.7 64.7 65.5 65.b 66.2 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.4 66.4 66.4

GE 5000C 66.8 61.0 69.9 70.0 70.6 70.6 70.7 70.8 70.8 70.8 7C.8 70.8 7D.8 70.8 70.9 70.9

GE 4SUI 72.1 74.8 75.8 76.0 76.7 76.7 76.8 76.8 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9

GE 40031 77.4 80.6 81.8 81.9 82.7 82.8 82.9 83.0 63.0 83.0 83.0 83.0

83.1 83.1 83.1 83.1

GE 350c1 80.2 83.5 84.9 85.1 85.9 86.0 86.2 86.2 86.2 86.3 86.3 86.3 86.3 F6.3 86.3 86.3GE 3001c 83.8 87.8 89.5 89.8 90.9 91.0 91.2 91.3 91.3 91.3 91.3 91.3 91.4 91.4 91.4 91.4

GE 25301 85.9 89.3 91.1 91.4 92.6 92.7 93.0 93.1 93.1 q3.2 93.2 93.2 93.2 93.2 93.3 93.3

GE ZOC 85.6 9C.1 92.1 92.5 9q.0 94.0 94.4 9#.6 94.6 94.7 94.7 94.7 94.7 04.7 94.8 94.8GE 1800I 85.7 9C.3 92.2 92.7 94.2 94.3 94.7 94.9 94.9 95.0 95.0 95.0 95.0 95.0 9S.1 95.1LE 150I0 86.0 9C.7 92.7 93.3 94.9 95.0 95.3 95.6 95.6 95.7 95.7 95.7 95.7 95.7 95.8 95.8GE 12001 86.0 9C.8 92.9 93.5 95.1 95.2 95.6 95.8 95.9 96.0 96.0 9b.0 96.0 Q6.0 96.0 96.0

GE 1001c 86.2 91.0 93.2 93.8 95.5 95.6 96.1 96.3 96.4 96.5 96.5 96.5 96.5 96.6 96.6 96.6

GE 900) 86.2 91.2 93.4 94.0 95.8 95.9 96.4 96.7 96.8 96.9 96.9 96.9 97.0 97.0 97.0 97.0

GE 8001 86.3 91.3 93.6 94.2 96.0 96.2 96.7 97.0 97.2 97.3 97.3 97.3 97.3 97.4 97.4 97.4GE 7001 86.3 91.4 93.7 94.3 96.2 96.3 96.9 97.3 97.4 97.6 97.6 97.

6 97.6 97.6 97.6 97.6

GE 6GC 86.3 91.4 93.8 94.4 96.2 96.5 97.1 97.5 97.6 Q7.8 97.8 97.8 97.8 97.9 97.9 97.9

GE 50CI 86.3 91.5 93.8 94.5 96.4 96.7 97.4 97.9 98.1 98.3 9A.3 98.3 98.3 98.4 98.4 98.4

GE 40C 86.3 91.5 93.8 94.5 96.5 96.8 97.6 98.1 98.1 98.7 9P.7 98.7 98.7 98.8 9%.8 98.8GE 300I 86.3 91.5 93.9 94.5 96.b 96.9 97.7 98.4 98.8 99.2 99.3 99.3 99.3 99.4 99.5 99.5GE 2001 86.3 91.5 93.9 94.5 96.6 96.9 97.8 98.5 98.9 99.4 99s5 99.5 99.6 q9.6 99.8 99.8

GE IUCI 86.3 91.5 93.9 4.5 96.6 95.9 97.8 98.5 98.9 99.4 99.5 99.5 99.6 99.7 99.9 100.0

GE cl 86.3 91.5 93.9 94.5 96.6 96.9 97.8 98.5 98.9 99.4 99.5 99.5 99.6 99.7 99.9 100.0

..............................................................................................................................................

1O1AL NLMBEP OF OBSERVATIONS: 7440

_A



AIG WEATHER SFRVICE/mAC

STATION NUMBER: 726225 STATICh N4NiE: PLAITSBURGH AF8 NY PERIOD OF RECORD: 78-87MONTH: NOV HOURS(LSTI: 0000-0200

CEILING VISIBILITY IN STATUTE MILESI 1N GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

C FEET le 6 5 4 3 2 112 2 1 112 I 1/4 1 3/4 5/8 112 5/16 1/4 0

..............................................................................................................................................

NO CEIL 1 33.8 34.0 34.0 34.0 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.4 34.4

GE 200001 36.1 36.6 36.6 36.6 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 37.0 37.0GE IOO0 36.2 36.7 36.7 36.7 37.0 37.0 37.0 37.0 37.0 37.0 37.0 37.0 37.0 37.0 37.1 37.1GE 1600C 36.2 36.7 36.7 36.7 37.0 37.0 37.0 37.0 37.C 37.0 37.0 37.0 37.0 37.0 37.1 37.1

GE 140001 36.1 36.8 36.8 36.8 37.1 37.1 31.1 37.1 37.1 37.1 37.1 37.1 37.1 37.1 37.2 37.2GE 1200C 36.9 37.3 37.3 37.3 37.7 37.7 37.7 37.7 37.7 37.7 37.7 37.7 37.7 37.7 37.8 31.8

GE 100001 40.0 4C.7 40.7 40.7 41.0 41.0 41.0 41.0 41.0 41.0 41.0 41.0 41.0 41.0 41.1 41.1

GE 90001 13.1 4C.8 40.8 40.8 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.2 41.2GE 80001 45.0 46.1 46.1 46.1 q6.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 4b.6 4b.6GE 700CI 46. 47.1 1 47.4 1,4 7.4474 4 7.4 47.4 47.4 47. 474 4 7.4 47.4 47.6 47.6GE 60001 48.1 44.2 49.2 49.2 49.6 49.6 49.6 49.6 g49.6 49.6 49.6 49.6 49.6 49.6 49.7 49.7

GE S0OCo 53.4 54.9 55.0 55.0 55.7 55.7 55.7 55.7 5S.7 5 3 . 7 55.7 55.7 55.7 55.7 55-8 55.8GE 45UOI 62.7 64.8 65.0 65.1 65.8 65.8 65.8 65.8 5.8 65.8 65.8 65.8 65.8 65.8 65.9 65.9GE 400CI 68.2 ?C.7 70.9 71.0 72.1 72.1 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.4 72.4

GE 350CI 72.1 7S.2 75.6 15.9 77.0 77.0 77.2 77.2 77.2

17.2 77.2 77.2 77.2 77.2 77.3 77.3GE 30C

I 77.9 81.6 82.6 82.7 84.0 84.1 84.3 84.3 84.3 84.3 84.3 84.3 84.3 84.3 84.4 84.4

GE 25001 79.1 83.7 84.8 85.0 8b.6 86.9 87.1 87.2 87.3 87.3 87.3 87.3 87.3 P7.3 87.4 87.4GE 20001 80.0 85.2 8b.6 86.8 89.0 89.3 89.9 90.0 90.1 90.3 90.3 90.3 90.3 90.3 90.4 90.4

GE 18001 8r-o 85.2 86.6 86.8 69.2 89.6 90.2 90.3 90.4 90.7 90.7 90.7 90.7 90.7 90.8 90.8UE 15001 80.2 85.6 87.1 87.7 90.4 90.9 91.6 91.7 91.9 92.1 97.1 92.1 92.1 92.1 92.2 92.2

GE 12001 80.4 86.0 87.8 88.3 91.6 92.0 92.7 92.8 93.0 93.2 93.? 93.2 93.2 q3.2 93.3 93.3

GE 17001 80.4 96.4 88.2 88.8 92.1 92.6 93.2 93.3 93.6 93.8 93.8 93.8 93.8 93.8 93.9 93.9GE 9o0C 80.4 86.6 88.4 89.0 92.6 93.0 93.7 93.8 94.0 94.3 94.3 94.3 94.3 94.3 94.4 94.4GE 8.JC 80.4 86.9 88.8 89.3 93.0 93.4 94.1 94.2 94.4 04.8 94.8 94.8 94.8 94.8 94.9 94.9GE 710l 80.4 87.0 88.9 89.4 93.1 93.6 94.2 94.3 94.6 94.9 9S.c 95.0 9S.0 95.0 95.1 95.1

GE 6001 80.4 87.2 89.2 89.8 93.7 94.2 95.0 95.1 95.4 95.8 95.9 95.9 9S.9 95.9 96.0 96.0

GE Socl 80.4 87.4 89.4 90.0 94.0 94.6 95.8 96.1 96.6 96.9 97.0 97.1 97.2 97.2 97.3 97.3

GE 4001 80.6 87.6 89.8 90.4 94.7 9S.6 96.9 97.? 98.1 98.6 9s.7 98.8 98.9 98.9 99.0 99.1GE 3001 80.8 81.8 90.0 90.7 95.0 95.9 97.3 98.2 98.7 99.1 90.4 99.6 99.7 99.8 99.9 1]&.0GE 2001 80.8 87.8 90.0 90.7 95.0 95.9 97.3 98.2 98.7 99.1 99.4 99.6 99.7 99.8 99.9 100.0

GE 1UC0 80.8 87.8 90.0 90.7 95.0 Q5.9 97.3 98.2 98.7 99.1 99.4 99.6 99.7 99.8 99.9 100.0

GE CI 83.8 87.8 93.0 90.7 95.0 95.9 97.3 98.2 98.7 99.1 99.4 99.6 99.7 99.8 99.9 100.0


0

iW

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRE4CE OF CEILING VFRSUS V15'BILITYUSAFETAC FROM HOURLY OBSERVATIONS


STTION NUMBER: 726225 STATION NAME: PLAITSBURGH AFB N1y PERIOD OF RECORD: 78-87

m. NTH: NOV HOURS(LSTI. 0300-050... .. ... .. ... .. .. ... .. ... .. .. ... .. ... . ......... ....... ....... ** " . .. .... r...................o.............

CE1LING VISIBILITY IN STATUTE MILES

IN IGE EE Gt GE GE GE GE GE GE GE CE GE GE GE GE GEFLET I 10 6 5 8 3 2 112 2 1 112 1 1/8 1 3/8 5/8 112 5/16 1/4 0

NO CEIL I 38.7 35.2 35.2 35.2 35.8 35.* 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.8 35.4

GE 2001109 37.6 38.4 38.4 38.4 38.7 38.7 38.7 38.7 38.7 38.7 3p.7 38.7 38.7 38.7 38.7 3e.7

GE Ia o0 37.6 38.4 38.4 38.4 38.7 38.7 38.7 38.7 38.7 38.7 38.7 38.7 38.7 !8. 38.7 38.76 16009 37,6 3 .4 38.8 38.4 38.7 38.7 38.7 38.7 38.7 !8.7 3P.7 38.7 38.7 38.7 38.7 38.7GE 14000) 37.7 38.6 3".6 38.6 38.8 38.8 38.8 38.8 38.8 38.8 3.8 38.8 38.8 38.8 38.8 38.8GE 120001 37.9 38.8 38.8 38.8 39.0 39.0 39.0 39.0 39.0 39.0 3Q.0 39.0 39.0 19.O 39.0 39.0

GE 100001 39.9 4C.8 80.8 80.8 41.1 81.1 41.1 81.1 41.1 41.1 41.I 41.1 41.1 81.1 41.1 41.1GE 900CI 39.9 40.8 40.8 80.8 81.1 41.1 41.1 81.1 41.1 41.1 81.1 81.1 41.1 41.1 41.1 41.1GE 800CI 943.3 45.0 85.1 5- 5.8 5.4 85.8 45.4 45.4 45.4 45.8 45.4 45.6 45.6 85.6 45.6GE 700CI 45.3 81.1 87.2 47.2 47.6 47.6 47-6 7-6 47.6 47.6 47.6 47.6 947.7 41.7 47.7 47.7

GE 60001 48.3 50.8 50.6 50.6 50.9 5C. 9 50.9 50.9 50.9 50.9 50.9 52.9 51.0 51.0 51.0 51.0

GE 53U01 51.3 55.7 55.9 55.9 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.3 56.3 56.3 S6.3

GE 450C0 61.6 64.3 64.8 65.0 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.7 65.7 65.7 65.7br 40109 67.8 7C.9 71.4 71.8 72.6 72.6 72.6 72.6 72.6 72.6 7.6 72.6 7Z.7 72.7 72.7 72.7

GE 35001 72.0 75.8 76.3 7b.7 77.4 77.4 77.8 77.8 77.4 77.4 77.4 77.4 77.6 77.6 77.6 77.6

GE 3C00C 76.1 8c.b 82.2 82.8 83.9 84.0 84.1 84.1 84.1 88.1 84.1 84.1 84.2 84.2 84.2 84.2

GE 25U0 77.8 82.8 84.7 85.3 86.8 86.9 87.0 87.1 87.1 87.1 87.1 87.1 87.2 87.2 87.2 87.2

GE 20001 79.S 88.9 87.0 87.7 89.1 89.2 89.3 89.4 89.4 89.6 89.6 89.6 89.7 85.1 SQ.7 89.7GE 18001 79.0 85.0 87.1 87.8 89.2 89.3 89.4 89.6 89.6 89.7 8Q.7 89.7 89.8 89-8 89.8 89.8

GE 15109C 79.2 85.2 87.3 88.2 90.0 90.1 90.2 9D.3 90.3 o0.,4 90.4 9C.4 90.6 90.6 90.6 90.6GE 120c 79.2 85.4 87.6 88.8 90.7 90.8 91.0 91.1 91.2 91.3 91.3 91.3 91.4 91.4 91.4 91.4

GE 10009 79.6 86.7 88.9 89.8 92.0 92.8 92.7 92.8 93.0 93.2 93.2 93.3 93.8 Q3.4 93.4 93.4GE 90Cj 79.6 86.8 89.0 89.9 92.2 92.7 93.2 93.3 93.6 93.8 93.8 93.9 94.2 94.0 94.0 94.0GE sodc 79.b 86.9 89.2 90.1 92.7 93.1 93.8 93.9 94.1 94.3 94.3 94.4 94.6 08.6 94.6 98.6OE 700 79.6 86.9 89.2 90.1 92.8 93.2 94.0 98.1 94.3 98.6 94.6 98.7 98.8 98.8 94.8 98.8GE 6C9 79.8 87.4 89.8 90.9 94.0 94.4 95-6 95.7 95.9 96.1 96.1 96.2 96.3 96.3 96.3 96.3

GE 59o 60.0 87.7 90.0 91.3 98.7 95.1 96.9 97.1 97.6 07.8 97.q 97.9 98.0 98.3 99.3 98.3GE 40c 80.0 87.9 90.2 91.7 95.4 95.9 97.7 97.9 98.4 98.7 98.7 98.8 98.9 99.2 99.2 99.2

GE 3uc0 80.0 81.9 90.2 91.7 95.4 95.9 97.7 97.9 98.4 98.8 98.8 98.9 99.1 99.4 99.4 99.6

GE 20C 80.0 87.9 90.2 91.7 95.4 95.9 97.7 97.9 98.4 99.0 90.0 99.1 99.4 99.8 99.8 1c.0GE 1o0 8o.0 87.9 90.2 91.7 95.4 95.9 97.7 97.9 98.4 99.0 99.n 99.1 99.4 09.8 99.8 10C.0

GE 09 80.0 87.9 90.2 91.7 95.4 95.9 97.7 91.9 98. .0 0 9 9. .1 99.8 9:98 99.8 100.0


&-&.Ada

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VrRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NU14RER: 126225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: NCV HOURsILS7): 0600-0800

CEILIN VISI ILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I IV 6 5 4 3 2 lZ 2 1 lIZ 1 114 1 3/4 S/8 1/2 5/16 114 0

.. a....&0.............................................................................................

NO CtIG 1 30.3 1C.9 31.0 31.0 31.1 31.1 31.1 31.1 31.1 31.1 33.1 31.1 31.1 31.1 31.1 31.1

Of 20 32. 3$.7 33.9 34.9 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0

2I0CI 32.) 33.2 33.9 33.9 34.6 34.b 34.0 34.6 34.6 34.6 34.6 34.6 34.6 34.6 34.6 34.6

%t 940? 3.0 34.2 34.4 341.0 316.6 34.6 34.6 314.6 34.6 34.6 34 .6 34.6 34.6 34.6 34.6 34.6: S C |*1 0| 33.9 $4.8 35.0 35.0 3S.1 35.1 35. 1 35.: 35.1 35.1 35.1 35.1 35. 35.1 33.1 33.1BE 12011itU 3 5.9 36.1 36.1 3b.2 36.2 36.2 36.2 36.2 36.2 36.7 36.2 36.2 36.2 36.2 36.2

st ilOI' 31?op- 38.7 39.0 39.0 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2

406C , 311- 1B.9 39.2 39. 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4* ~ ~ ~ o 115~g .A~9 43 4. 48 450 4. 5o 4.0 45.0 45.0 43.0 45.0 45.0 45.0 45..0 45.0

1r ?,8Pcu qs.4 47.2 47.7 47.7 41.9 47.9 47.9 47.9 47.9 47.9 47.9 41.9 47.9 47.9 47.9 47.9GE 600 47.3 49.3 49.8 49.8 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.

O 30.0 50.0 50.0

6E SO00I 52.6 55.6 56.0 56.3 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6G GE 450C| 60.3 4.0 64.7 65.0 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2Gr 400CI 65.7 6 -9 70.9 71.2 71.6 71.6 71.7 71.7 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.9

GE 35001 71.1 75.8 77.0 77.3 77.7 77.8 77.9 77.9 i8.0 78.0 78.0 78.0 78.0 7800 78.0 16.1GE 320C I 76.1 81.2 82.7 83.1 83.9 84.0 841 84.1 84.2 4 .2 84 2 842 84.2 4.2 84.2 84.3

GE 2SOC 77.3 83.3 65.2 85.8 86.8 86.9 87.1 87.1 87.2 87.2 87.2 87.2 87.2 87.2 87.2 87.3

GE 20001 79.7 85.4 88.0 88.7 89.7 89.8 90'0 90.1 90.2 90.2 91.2 90.2 90.2 90.2 90.2 90.36E 18001 78.8 85.7 88.2 88.9 90.0 90.1 90.4 92.6 90.7 90.7 9n.7 9C.7 90.7 90.7 90.7 90.8GE 1500| 78.9 85.8 88.3 89.1 90.2 90.3 90.9 91.0 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.2

GE 1200! 79.2 86.2 88.8 89.6 90.7 90.8 91.4 91.6 91.8 91.8 91.8 91.8 91.8 q1.8 91.8 91.9

GE 1300) 79.6 87.2 90.1 91.0 92.4 92.6 93.2 93.3 93.6 93.7 93.7 93.7 93.8 93.8 93.8 93.9(2 GE 90CI 79.6 87.4 90.6 91.8 93.3 93.4 94.3 94.9 94.7 94.8 94.8 94.8 94.9 94.9 94.9 95.0

GE 800 79.6 87.6 90.7 91.9 93.7 93.9 94.8 94.9 95.1 95.2 93.2 95.2 95.3 95.3 95.3 95.4

GE 7001 79.6 87.8 90.9 92.1 94.1 94.3 95.2 95.4 95.7 95.8 9S.9 95.9 96.0 96.0 96.0 96.1

GE 6001 79.6 88.1 91.2 92.4 94.7 94.9 96.0 96.3 96.A 96.9 97.0 97.0 97.1 97.1 97.1 97.2

GE 50C0 79.6 88.2 91.6 93.0 95.4 95.7 97.0 97.7 98.4 98.6 9p.7 98.8 99.0 99.0 99,0

99.2GE 400? 7q.6 88.2 91.7 93.1 95.8 96.0 97.3 98.0 98.9 99.0 99.1 99.2 99.4 99.4 99.4 99.?

&E 300! 79.6 88.2 91.7 93.2 95.9 96.1 97.4 98.1 99.0 09.1 99.2 99.3 99.6 99.6 99.6 99.8GE 200! 79.6 88.2 91.7 93.2 95-9 96.1. 97.4 98.1 99.C 99.Z 99.3 99.6 99.8 99.8 99.8 100.0GE lOcl 79.6 88.2 91.7 93.2 95.9 96.1 97.4 98.1 99.0 Q9.2 99.3 99.6 99.8 99.8 99.4 100.0

GE 01 79.6 88.2 91.7 93.2 95.9 96.1 97.4 98.1 99.0 99.2 99.3 99.6 99.8 99.8 99.8 106.0

...........................................................................................................................

TOTAL NUMBER Of OBSERVATION.S: 900

OAK L

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREGUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC r6OH HOURLY OBSERVATIONS



MONTH: NOV HOURS(LSII: 0900-1100

CEILING0 VISIBILITY IN STATUTE MI1LESIN I GE GE GE GE GE Gr GE GE GE GE GE GE GE GE GE G E

FEET 1 10 6 5 4 3 2 112 2 1 112 1 1/ 4 1 /4 518 112 C/16 1/4 0

NO CEIL I 29.2 3C.1 30.3 30.3 30.3 30.3 30.3 3U.3 30.3 30.3 30.3 30.3 30.3 30.3 30.3 30.3

GE 20OUCI 33.2 34.1 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3GE 1 OO 01 33.7 34.6 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34.8 34 .8GE lbOOC| 33.9 34.8 35.0 35.0 35.0 35.0 35.0 35.

0 35.0 35.0 35.0 35.0 35.0 35.0 3S.0 35.0

&E 14000) 34.6 35.4 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7

GE 120001 36.2 37.2 37.6 37.7 37.8 37.8 37.8 37.8 37.8 37.8 37.8 37.8 37.8 37.8 37.8 37.8

GE 1000C 39.8 4C.8 41.1 41.2 41.3 41.3 41.3 41.3 41.3 41.3 41-3 41.3 41.3 41.3 41.3 41.3

GE 900C 40.9 43-9 42.2 42.3 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42-4 42.4 42.4GE 8no01 44.7 46.0 46.4 46.6 46.8 46.8 46.8 4b.8 46.b8 46.8 46.8 46.6 46.8 46.8 46.8 lb.8GE 7DO1 47.8 45.7 50.2 50.3 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.bGE 60001 49.9 51.9 52.4 52.b 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.8

GE 50001 54.1 56.6 57.2 57.6 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57., 57.9GE 4

50CI 59.8 62.4 63.2 63.7 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0

GE 40001 67.6 7C.9 72.3 72.8 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1.E 3500| 71.2 75.8 77.3 77.8 78.3 78.3 78.3 78.3 78.3 78.4 78.4 78.4 78.4 78.4 78.4 78.4

GE 300C1 76.7 8 1.7 83.3 83.8 84.4 84.4 84.7 84.7 84.7 84.8 84.8 R4.8 84.8 F4.8 84.8 84.8

GE 25JDI 79.0 84.4 86.1 86.9 87.6 87.6 87.8 87.8 87.8 87.9 87.9 87.9 87.9 P7.9 87.9 F7.9

GE 20001 80.2 85.8 87.4 88.2 89.2 89.3 89.6 89.6 89.6 89. 7 89.7 89.7 89.7 89.7 .7 89.75E 18001 80.7 86.3 88.1 88.9 89.9 90.1 90.3 90.3 90.3 90.4 9f.4 9c.4 90.4 80.4 90.4 9U.4GE ISUC 8,.8 86.7 88.6 89.3 90.4 90.8 91.0 91.! 91.0 q9.1 91.1 91.2 91.2 91.2 91.2 91.2

GE 12003 81.0 86.9 88.9 89.9 91.1 91.4 91.7 91.3 91.8 92.0 92.t 92.1 92.1 92.1 92.1 92.1

GE I0C0 81.1 87.3 89.4 90.8 92.6 92.9 93.4 93.7 93.8 94.2 94.2 94.3 94.4 94.4 9Q.4 94.4GE 9C 81.1 87.6 89.7 91.0 92.8 93.1 93.8 94.0 94.1 94.6 94.6 94.7 94.8 94.8 94.8 94.8GE suCI 81.1 87.8 90.1 91.4 93.4 93.9 94.7 94.9 95.0 95.4 95.4 95.6 95.8 95.8 95.8 95.8

GE 7jic 8:.1 87.9 90:3 91.9 94.0 94.4 95.2 95.6 95.7 96.1 96.1 96.2 96.4 96.4 96.4 o6:4

GE 6.Ci 81.1 83.9 90.7 92.4 94.8 9S.2 96.1 96.4 96.6 oT,! 97.1 97.2 97.4 97.4 97.4 97.4

GE su50 81.1 87.9 90.7 92.4 94.9 9s.4 96.4 97.3 97.8 q8.6 98.7 99.U 99.3 99.3 99.3 99.3

GE 40-1 81.1 47.9 90.7 92.4 94.9 95.6 96.7 93.7 98.1 98.9 9..0 99.3 99.7 99.7 99.7 99.7GE 3001 81.1 87.9 90.7 92.4 94.9 95.6 76.7 97.7 98.1 98.9 90.0 99.3 99.7 99.7 99.7 99.7

GE 20C1 81.1 87.9 90.7 92.4 94.9 95.6 96.7 97.7 98.1 99.0 99.2 99.6 99.9 99.9 99.9 99.9

GE 1003 81.1 87.9 90.7 92.4 94.9 9s.6 96.7 97.7 98.1 99.0 99.2 99.6 99.9 99.9 100.0 100.0

GE cI 81.1 A7.9 90.7 92.4 94.9 95.6 96.7 97.7 98.) 99.0 90.2 99.6 99.9 99.9 100.0 OL.0


iKeC__

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC rkoM HOURLY ObSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: 78-87MONTH: NOV HOURS4LSTI: 1200-1400

CE IL ING VISIBILITY IN STATUTE 1ILESIN GE CE GE GE GE GE Gt 5E GE G GE GE GE GE GE GE

FEET I 10 b 5 4 3 2 1/2 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0.. . ... . .. . . .. .......... ... ... ...............°°.... ...... .. .. ,.. ... .......... ..... .. ..... , ..... . .

NO CEIL 1 28.7 25.7 29.7 29.8 29.8 29.8 29.8 29.8 29.8 29.8 29.8 29.8 Z9.8 29.8 29.8 29.8

GE 2000CI 33.1 34.3 34.3 34.4 34.4 34.4 34.4 34.4 34.4 34.4 34.4 34.4 34.4 34.4 34.4 34.4GE 130001 33.7 34.9 34.9 35.0 35.0 35.0 35.0 35.0 35.0 35.0 35.0 35.0 35.0 35.0 35.0 35.0GE 1600C1 34.1 35.3 35.3 35.4 35.4 35-4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4GE 1400I 34.9 36.1 36.1 '6.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36 .2

GE 1200C) 35.9 37.2 37.2 37.3 37.3 37.3 37.3 37.3 37.3 37.3 37.3 37.3

37.3 37.3 37.3 37.3

GE OO0C 1 40.8 42.3 42.3 42.6 42.6 42.6 42.6 42.b 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6

GE 90001 41.0 42.6 42.6 42.8 42.8 4Z.8 42.8 42.8 42.8 42.8 42.8 12.8 42.8 42.8 42.8 "2.8GE 80001 43.B 45.6 45.7 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9 45.9GE 700C1 46.1 48.0 48.1 48.3 48.3 48.3 48.4 48.4 48.4 48.4 49.4 48.4 48.4 48.4 498.4 48.4GE 60001 49.3 SI.3 51.4 51.7 51.7 51.7 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8

GE 500CI 55.1 S7.6 57.9 58.1 58.2 58.2 58.4 58.4 58.4 58.4 58.4 58.4 18.4 58.4 18.4 58.4GE 45GCI 60.3 63.1 63.6 63.9 64.0 64.0 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2GE 400C1 68.1 72.1 72.8 73.2 73.6 73.6 74.0 0 74.0 74.0 74.0 74.0 14.0 74.0 14.0 34.0GE 350C1 73.0 71.2 78.2 78.8 79.3 79.3 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8GE 30001 77.7 82.6 83.8 84.3 85.1 81.1 85.9 86.0 86.0 86.0 86.0 86.0 86.0 P6.

0 86.0 86.0

GE 25001 79.4 84.6 85.9 86.7 87.6 87.7 88.9 89.0 89.0 89.0 89.1 89.1 89.1 89.1 89.1 89.1

GE 200C 80.6 86.2 88.1 88.9 90.2 90.3 91.6 91.7 91.7 91.7 91.8 91.8 91.8 91.8 91.8 91.8GE 180C 80.S 86.4 88.3 89.1 90.4 90.6 91.8 91.9 91.9 91.9 92.0 92.0 92.0 92.0 92.0 92.0GE i5OCl 80.9 86-6 88.7 89.4 91.0 91.3 92.6 92.7 92.8 92.8 92.9 93.0 93.0 93.0 93.0 93.0GE 12UCI 80.9 86.8 88.9 89.7 91.3 91.7 93.0 93.1 93.2 93.2 93.6 93.7 93.7 93.7 93.7 93.7

GE loaot 81.2 87.4 89.6 90.4 92.2 92.6 94.0 94.1 94.2 94.3 94.7 94.9 94.9 94.9 94.9 94.9GE 9071 81.4 87.8 89.9 90.8 92.6 9z.9 94.3 94.4 94.6 04.7 95.g 95.2 95.2 95.2 95.2 95.2GE 80CI 81.4 87.9 90.1 91.0 92.9 93.3 94.8 94.9 95.0 95.3 9S.7 95.9 95.9 95.9 95.9 95.9GE 70|1 81.4 88.0 97.4 91.3 93.3 93.9 95.3 95.4 95.6 95.9 96.2 96.4 96.4 96.4 96.4 96.4

GE 60C1 81.4 86.2 90.7 91.6 93.9 94.4 96.1 96.4 96.6 97.0 97.3 97.6 97.6 97.6 97.6 97.6

GE ScI 81.4 88.4 90.9 91.8 94.1 94.7 96.3 96.9 97.0 07.7 9p.0 98.2 94.2 98.2 98.2 98.2

GE 4uoO 81.4 48.4 90.9 91.8 94.1 94.8 96.7 97.4 97.6 98.2 90.A 99.1 99.2 9.2 99.2 99.2

GE 30C1 81.4 88.4 90.9 91.8 94.2 95.0 97.0 97.9 98.0 98.8 99.4 99.8 100.0 1OC.o 101.0 100.0GE 20C 81.4 88.4 90.9 91.8 94.2 95.0 97.0 97.9 98.0 98.8 99.4 99.8 100.0 100.0 100.0 100.0

GE ILC7 81.4 88.4 90.9 91.8 94.2 95.o 97.0 97.9 98.0 98.8 9-,4 99.8 100.0 100.0 100.0 100.0

GE CI 81.4 88.4 93.9 91.8 94.2 95.3 97.0 97.9 98.0 98.8 99.4 99.8 100.0 100.0 100.0 IOF.0

................................................................................................................................................


c___

AL-.

GLLBAL CLIMATOLOGY 8RANCH PERCENTIAGE FREwUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFEIAC F-O

M HOURLY OBSERVATIONS


STATION NURRER: 726225 STATICN NAME: PLAITSBURGH AFB NY PERIOD OF RECORD: 78-87

MONTH: NCR HOURSILSTI: 1500-1100

CE"ILING VISIPILITY IN STATUTE MILES

IN I GC BE GE GE GE GE GL GE GE GE GL GE 01 GE GE bE* FEE

T I 1n 6 5 4 3 2 1/2 2 1 1/2 1 1/N I 3/4 518 1/2 '116 1/ 0

........ ... .. ....................................................................................................

NO CEIL I 30.6 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3

GE 200001 35.4 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36 .3GE 180001 35.8 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 '6.7 36.? 36.7

GE 160001 35.9 36.8 36.8 !6.8 36.8 36.8 36.8 36.8 36.8 36.8 36.8 36.8 36.8 36.8 36.8 3

b.8GE 14OUC1 36.8 37.7 37.7 31.1 37.7 37.7 37.7 31.1 37.7 31.7 37.7 37.7 37.7 !7.7 37.7 37.7GE 120001 38.3 39.2 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39.3 39. 3

GE 10OOCI 42.3 43.2 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 4'.3 43.3

GE 900CI 42.8 N 3.7 4 3.8 43.8 43.8 43.8 43.8 43.8 43 .8 N3. p 43.q N 3.8 43.8 N3.8 N 3.8 43 .8GE 8000 47.8 48.7 48.8 48.8 8.8 48.8 48.8 48.8 N8.8 8.8 N8.8 48.8 48.8 48.8 48.8 46.8GE 73001 50.2 51.4 ;1.6 51.6 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.8GE 60001 52.3 53.6 53.7 53.7 54.0 54.0 54.0 54.0 54.0 54.0 54.C 54.0 54.0 S4.0 54.0 54.0

GE 50OCI 57.2 58.8 59.0 59.3 59.3 59.3 59.3 59.3

59.3 59.3 59.3 59.3 59.3 59.3 59.3 S9.3GE 45,01 62.7 64.8 65.1 65.2 65.7 65.7 65.7 65.3 65.7 65.7 65.7 65-7 65. 65.7 65.7 65.75E NOOCI 68.9 71.4 71.8 71.9 72.3 72.3 72.3 72.4 72.4 72.4 72.4 72.4 7Z.4 72.4 72.4 72.4GE 35001 72.8 75.6 76.1 76.2 76.8 76.8 77.0 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 17.1GE 300CI 77.8 81.8 82.9 83.0 83.9 83.9 84.3 84.6 84.8 85.0 85.0 85.0 85.0 85.0 85.0 85.0

GE 2500 79.3 83.6 85.2 85.3 86.2 86.2 86.9 87.1 87.3 87.7 87.7 87.7 87.7 87.7 87.7 87.7GE 2001 80.0 84.8 86.8 86.9 88.0 88.1 89.0 89.2 89.4 89.8 89.8 89.8 89.8 89.8 89-8 84.8GE 18001 80.2 85.0 87.0 87.1 88.4 88.6 89.4 89.7 89.9 90.2 90.2 9G.2 90.2 9C.2 90.2 OC.2

GE 15CI 80.7 85.7 88.0 88.1 89.8 89.9 91.0 912 91.6 92.0 92.0 92.2 92.3 92.3 97.3 q2.3

GE 12001 8.7 88.7 88.0 :8.2 90.0 90.2 91.4 91.7 97.0 2.4 92.4 92.7 92.9 92.9 92.9 92.9

TE 10001 81.0 8b.3 88.8 89.0 90.8 91.0 92.3 92.7 93.2 93.7 93.7 93.9 94.1 94.1 94.1 94.1

GE 9001 81.0 87.0 89.6 89.9 91.7 92.0 93.3 93.7 94.3 94.8 94.8 95.0 95.2 95.2 95.2 95.2

GE 8UG1 81.0 87.3 89.9 90.2 92.0 92.4 93.8 94.4 95.1 95.6 95.7 95.9 96.1 96.1 96.1 96.1GE

7601 81.0 87.3 89.9 90.2 92.1 92.6 94.0 94.7 95.3 95.9 96.r 96.2 96.4 96.4 96.4 96.4

GE 6U01 81.0 87.14 90.0 90.6 92.6 93.1 94.8 95.4 96.1 96.7 96.8 97.0 97.2 97.2 97.2 91.2

GE 5001 81.0 83.4 90.1 90.7 92.8 93.3 95.1 96.3 97.1 97.7 97.8 98.0 98.2 98.2 98.2 p8.2GE 4oCI 81.0 83.6 90 .2 91.0 93.3 93.9 95.7 91.0 98.0 98.6 90.8 99.0 99.3 99.3 99.5 99.3

GE 30CJ 810 97.7 90.3 91.1 93.4 98.0 95.8 97.1 98.2 98.8 99.2 99.4 99.9 Q9.9 98.9 99.9

GE 20CI 81.0 8.? 9n.3 91.1 93.4 94.0 95.8 97.1 98.2 8.8 9q.2 99.4 99.9 99.9 99.9 99.9

GE loCI 81.0 87.7 90.3 91.1 93.4 94.0 95.8 91.1 98.2 98.8 99.2 99.4 99.9 99.9 99.9 99.9

E .. r1 8 . 7.7 90.3 91.1 93.4 94. 95.8 91.1 98.2 88.8 9 992 99.4 99.9 8.9 99.9 IC.O

ETOAL NUMBER OF OBSERVATIONS: 900

*L

N 'W, . u I l ain. n n mm

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENLE OF CEILING VFRSUS VISIBILITYUSAFETAC FhOM HOURLY OBSERVAT1ONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726725 STATION NAME: PLAITSUlGH AFB NY PERIOD OF RECORD: 78-B7

MONTH: NOV HOURS(LSII: 1800-2,00

CE ILING VISIBILITY IN STATUTE MILES1N I GE CE GE GE BE GE G

L GE Gt GE GE GE GE GE GE GE

FEET I 1n 6 5 4 3 2 1/2 2 1 1/2 1 14 1 3/4 5/8 1/2 S/16 1/4 0

NO CEIL 1 32.3 32.8 33.1 33.2 33.2 33.2 33.2 33.3 33.3 33.3 31.l 33.4 33.4 33.4 33.4 33.4

GC 2U(001 35.0 35.6 35.9 36.0 36.0 36.0 36.0 36.1 36.1 36.1 36.2 36.2 36.2 36.2 36.2 3b.2GE 18n001 35.2 35.8 36.1 36.2 36.2 36.2 36.2 36.3 3 .3 36.3 36.4 36.4 36.4 36.4 36.4 36.4GE 1600CI 35.2 35.8 36.1 36.2 36.2 36.2 36.2 36.3 36.3 36.3 36.4 3e.4 36.4 36.4 36.4 3b.4Oc 1 40C) 35.8 36.4 36.8 !6.9 36.9 36.9 36.9 37.0 37.0 37.0 37.1 37.1 37.1 33.1 37.1 37.1GE IZOC1 37.6 36.2 38.7 38.8 38.8 38.8 38.8 38.9 38.9 38.9 3q.0 39.0 39.0 39.0 39.0 39.0

GE 1000CI 42.7 43.3 43.8 43.9 43.9 3.9 47.9 44.0 44.0 44.0 44.1 44.1 44.! 44.1 44.1 44.1

GE 900CI 43.9 43.7 44.1 44.2 44.2 44.2 48.2 44.3 44.3 t4.3 44.4 44.4 44.4 44.4 44.4 44.4GE BOUTI 47.3 4E.1 41.6 48.3 48.7 48.7 48.7 48.8 48.8 48.8 48.9 48.9 48.9 48.9 48.9 48.9GE 7o0IC| 49.6 5C.4 50.9 51.2 51.2 51.2 51.2 51.3 51.3 51.3 51.4 51.4 51.4 51.4 51.4 51.4GE b001 52.3 53.2 53.8 54.1 54.2 54.2 54.2 54.3 54.3 54.3 54.4 54.4 54.4 54.4 54.4 54.4

GE 50ooI 56.3 57.6 58.3 58.8 59.0 59.1 59.1 5Y.2 59.2 59.2 59.3 59.3 59.3 59.3 59.3 59.36E 450C1 63.2 64.9 65.6 66.2 66.4 66.6 66.8 66.9 66.9 66.9 67.0 67.0 67.0 67.0 67.0 67.0GE 40001 67.6 7C.0 71 . 71.6 71.9 72.0 72.2 72.3 72.3 72.3 72.4 72.4 72.4 72.4 72.4 72.4GE 35U01 71.8 74.2 75.3 76.0 76.9 77.0 77.2 77.3 77.3 77.3 77.4 77.4 77.4 77.4 77.4 77.4GE 30001 76.8 79.7 81.4 A2.1 83.7 84.0 84.3 84.4 84.4 84.4 84.6 84.6 44.6 94.6 84.6 84.6

GE 25001 78.0 81.9 84.1 R4.8 86.4 86.8 87.2 87.3 87.3 87.7 87.8 fl7.8 87.8 87.8 87.8 87.8rE 2E o 1 78.4 82.7 85.9 6b.6 86.8 89.1 90.0 90.8 90.8 91.1 91.2 91.2 91.2 °1.2 91.2 91.2GE 180CI 78.6 82.8 86.1 86.8 89.1 89.4 90.3 91.1 91.1 91.4 91.6 91.6 91.6 91.6 91.6 91.6GE 150 1 78.6 82.9 86.6 87.3 90.1 90.7 91.6 92.3 923 93.2 93.3 93.4 93.4 93.4 93.4 93.4GE 1ZucI 78.7 83.2 86.9 f7.7 90.7 91.3 92.3 93.2 93.2 94.2 94 .3 94.4 94.4 94.4 94.4 99.4

GE 1o0c? 7p.7 84.1 87.8 B8.6 91.7 92.3 93.4 94.6 94.6 -5.6 9'.7 95.8 95.8 95.8 95.8 95.8GE 9001 78.7 A4.3 88.1 88.9 92.0 92.8 94.1 95.2 95.3 96.3 96.4 96.6 96.6 96.6 96.6 96.66E 80C1 78.7 84.6 88.6 L9.3 92.4 93.4 94.8 95.9 96.0 97.

0 97.1 91.2 97.2 97.3 97.3 97.3

GE 7&t1 78.7 S4.6 88.7 89.4 92.7 93.7 95.0 9b.1 96.2 97.2 97.3 97.4 97.4 97.6 97.6 97.6UE 6001 78.7 84.9 89.4 90.2 93.7 94.7 96.0 97.2 97.3 98.3 98.4 98.6 98.6 98.7 94.7 98.7

GE 50C1 7A.7 85.0 89.6 90.3 93.8 94.6 96.1 97.3 97.4 98.4 98.6 98.7 98°7 98.8 9R.8 98.8GE 40G 7J.7 5.1 B').7 9C.4 93.9 94.9 96.7 98.G 98.1 g9. 1 99.6 99.7 99.7 99.8 99.8 99.8GE 3GCI 78.7 85.1 89.7 90.4 93.9 94.9 96.7 98.0 98.2 99.Z 99.7 99.8 99.9 99.9 99.', 99.9

GE 2U01 78.7 85.1 89.7 90.4 93.9 94.9 96.7 98.u 98.2 99.3 99.8 99.9 99.9 100.O 107.0 106.0bE 10C| 78.7 85.1 89.7 90.4 93.9 94.9 96.7 98.0 98.2 99.3 9q.g 99.9 91.9 ICO.O 100.0 100.0

GE C1 78.7 85.1 89.7 90.4 93.9 94.9 95.7 9B.0

98.2 99.3 99.9 99.9 99.9 In0.0 103.0 100.0

TOAL NUMBER OF OBSERVATIONS: 900

Jo__


USAFETAC FKOM HOURLY OBSERVATIONS

All WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 78-87MONTH: NOV HOURSTLSII: 2100-2300... ..................................................... .......;.: ...... ...........................................

CE ILING VISIB1LITY IN STATUTE MILESIN I GE cE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FLET I 10 6 5 4 3 2 1/2 2 1 1/2 1 I/ I 3/4 5/8 1/2 /16 1/4 0

NO CEIL I 33.0 33.3 33.7 34.0 34.1 34.1 34.1 34.1 34.1 39.1 34.1 34.1 34.1 34.2 34.2 34.2

GE 2000C1 35.3 35.7 36.0 36.3 36.4 36.4 36.4 36.4 36.4 36.4 36.9 36.4 36.4 76.6 36.6 36.6

GE I8008 0 1 35. 6 35.9 36.2 36.6 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.7 36.6 36.8 36.86E 160CCI 35.7 3 .0 36.3 16.7 36.8 36.8 36.8 36.8 36.8 36.8 36. 8 36.8 76.9 36.9 3b .9GE 140UCI 36.2 36.6 36.9 37.2 37.3 37.3 37.3 37.3 37.3 37.3 37.3 37.3 37.3 37.4 37.4 37.4GE 1200CI 36.P 37.1 37.4 37.8 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9 38.0 3p.0 36.0

GE 10)UC! 97.0 40.3 40.7 41.0 411 41.: 1 41.:1 41 4.1 : 4 41. 91.1 1 91 941.2 41.2 41.2GE 900C P.? 40.6 90.9 91.2 91.3 4 4.3 91 4.3 4 1.3 91.3 91.3 41.4 41.4 4.4

S800T I .1 45.4 46.3 46.7 96.8 46.8 46.8 46.8 96.8 46.8 46.9 46.8 96.8 96.9 46.9 46.9iE

7o00l 47.( 44.3 48.9 99.2 99.3 49.3 49.3 49.3 49.3 99.3 93 99.3 40.3 49.4 49.4 49.4

GE 6001 4.9 51.0 51.7 52.0 52.1 52.1 52.1 5 .1 52.1 52.1 52.1 52.1 52.1 52.2 52.2 52.2

GE 5n l 53.9 55.9 56.3 56.9 57.1 57.1 57.1 57.2 57.2 57.2 57.2 51.2 57.2 57.3 57.3 57.3GE 4SOCI 61.3 6'.3 64.9 65.1 65.7 65.7 65.7 65.8 65.8 65.8 65.8 65.8 6S.8 65.9 65.9 65.9

GE 00 C1 67.0 69.3 70.7 71.7 72.6 72.6 72.6 72.7 72.7 72.7 77.7 72.7 72.7 72.8 7-.8 72.8GE 350C1 71.4 79.2 75.7 76-7 77.7 77.7 77.8 77.9 77.9 77.9 77.9 77.9 77.9 78.3 78.0 78.0GE 39001 75.3 78.7 80.6 81.6 82.9 82.9 83.1 83.2 83.2 83.2 83.2 83.2 43.2 83.3 43.3 F3.3

01 25001 77.2 41.9 83.7 89.P 86.4 86.4 86.9 87.1 87.j I 7.3 87.3 87.3 87.3 P1.4 67.4 47.4GE 20G01 77.8 32.4 A5.6 P .. 7 88.3 88.9 89.3 89.8 89.8 90.0 90.0 9[.D 90.0 90.1 90.1 9L.1GE luCl 77.9 82.9 86.0 87.1 88.8 88.9 89.9 9j.

3 90.3 90.6 90.6 9C.6 90.6 90.7 90.7 90.7

GE ISIC I 79. 83.6 86.7 88.0 89.8 90.2 91.2 91.7 92.0 92.2 92.2 92.2 92.2 92.3 92.3 92.3

GE 120CI 78.4 89.9 87.7 89.1 90.9 91.3 92.3 92.8 93 .1 93.3 93.3 93.3 93.3 93.4 93.4 93.9

GE 10001 78.6 85.6 88.8 90.2 92.0 92.6 93.? 94.1 99.7 94.9 9,. 0 95.0 95.0 95.1 95.1 95.1

GE 9U I 78-6 85.8 89.1 90.7 92.8 93.4 94.6 95.0 95.6 95.8 93.9 95.9 95.9 96.0 96.0 96.0

E 8C! 78.6 85.9 89.2

90.9 93.0 93.7 9N.8 95.2 95.8 96.0 96.1 96.2 96.2 96.3 96.3 9(,.3

CE 70C 78.7 86.1 89.6 91.2 93.3 94.0 95.2 95.7 96.2 96.4 96.6 96.7 96.7 96.8 96.8 96.8

1,E 6UC0 70.7 86.9 89.9 91.6 93.7 99.9 95.8 96.2 96.8 97.0 97.2 97.6 97.6 97.7 97.7 97.7

GE 0uCI 78.4 86.8 90.3 52.0 99.1 99.9 96.4 96.9 97.4 97.7 97.0 98.2 98.3 94.9 98.4 96.9GE 90 1 7P.9 96.9 90.4 92.1 99.2 95.0 96.6 97.3 97.9 98.2 98.9 98.8 98.9 99.0 99.0 9.0GE 30,01 79.1 87.2 90.8 92.4 99.8 95.6 97.4 98.2 98.8 99.1 99.3 99.7 99.8 99.9 99.9 99.9

GE 2001 79.1 87.2 90.8 92.4 99.8 95.6 97.6 98.3 94.9 99.2 99.4 99.8 99.9 I1C.O 100.0 100.0

GE I0 79.1 87.2 90.8 92.4 99.8 95.6 97.6 98.3 98.9 99.2 9q.4 99.8 99.9 I0.0 100.0 I00.0

GE CI 79.I

87.2 90.8 92.9 94.8 95.6 97.6 98.3 98.9 99.2 99.4 99.8 99.9 13C. 100.0 100.0

TOI&L NUMBER OF OSENVA I10S: 900

AIR

GLLBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVAIIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 126225 STATION NAME: PLATTSBURGH AF8 NY PEPIOC OF RECORD: 78-87MONTH: NOV HOUPSILSI: ALL

CE IL 1NG ViSIBILITY 34 STATUTE MILES

IN I GE GE GL GE GE GE GE GE GE GE TE GE GE GE GE E

FEET 1 6 5 V 3 2 1/2 2 1 112 1 1/4 I 3 5/8 Il? 5/I6 1/4 0

. NO CElL 1 31.5 32-2 32.3 32.4 3 .5 32.5 32.5 32.5 32.5 32.5 3?.5 32.5 32.5 32.5 32.5 12-5

GE 200U01 34.8 35.6 35.7 35.8 35.9 35.9 35.9 35.9 35.9 35.9 35.9 35.9 35.9 35.9 34.9 35.9

GE 18000 35.1 35.9 36.U 36.1 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 !6.2 36.3 36.3GE 160CC 35.2 36.0 36.1 36.2 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.4 36.4GE 140001 35.8 36.5 36.7 36.8 36.8 36.8 36.8 36.9 36.9 16.9 36.9 36.9 36.9 36.9 36.9 36.9GE 120001 36.8 37.6 37.8 37.9 38.0 38.0 38.0 38.0 38.0 38.

0 38.0 38.0 38.0 38.0 38.1 38.1

GE IO001C 40.4 41.3 41.5 41.6 41.7 41.7 41.7 41.7 41.7 41.7 41.7 41.7 41.7 41.7 41.8 41.8GE 90001 40.7 41.6 41.8 41.9 42.0 42.0 42.0 42.0 42.0 42,0 42.1 42.1 42.1 42.1 42.1 42.1GE BOCI 44.9 46.2 46.5 46.6 46.7 46.7 46.7 46.7 46.7 46.7 46.8 46.8 46.8 46.8 46.8 46.8GE 73001 47.3 48.7 49.0 49.1 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3GE 6001 49.7 51.3 51.6 51.7 1.9 51.9 51.9 51.9 51.9 51.9 51.9 51.9 52.0 52.0 52.0 52.0

GE 500C1 54.5 56.5 57.0 57.2 57.5 S7.5 57.5 57.6 57.6 $7.6 57.6 57.6 57.6 57.6 57.6 57.6GE 4SUC| 61.5 64.0 64.6 64.9 65.3 65.3 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4 65.4GE 40001 67.6 7C.7 71.5 71.9 72.5 72.5 72.6 72.6 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7GE 3501 71.9 75.4 76.S 76.9 77.6 77.7 77.8 77.9 77.9 77.9 77.9 77.9 77.9 77.9 78.0 7b.0GE 300 1 76.8 81.0 82.4 82.9 84.0 84.1 84.4 84.4 84.5 q4.5 84.5 84.5 84.5 P4.6 84.6 S4.6

GE 25001 78.4 8 3.2 85.0 85.6 86.8 86.9 87.3 87.5 87.5 87.7 87.7 87.7 87.7 81.7 87.7 87.7GE ZOO1 79.3 84.7 86,9 87.5 89.0 89.2 89.8 93.1 90.1 90.3 90.3 9C.3 90.3 9C.3 91.4 9G.4GE 18001 79.5 84.9 87.2 87.8 89.4 89.6 91.7 90.5 90.5

9D.

7 9r.7 90.7 90.7 9C.8 90.8 90.8

GE 150C1 79.7 85.2 87.7 88.4 90.2 90.5 91.3 91.5 91.6 91.9 91.9 92.0 92.0 92.0 92.0 92.0

GE 12U01 79.8 85.6 88.1 88.9 90.9 91.2 92.1 92.2 92.4 92.7 97.8 92.8 97.9 92.9 97.9 92.9

GE 100CI 80.0 86.4 88.9 89.8 92.0 92.4 93.3 93.6 93.F 94.2 94.2 94.3 94.4 q4.4 94.4 94.4GE 9LCI a0.P 86.7 89.3 90.2 92.5 92.9 93.9 94.2 94.5 94.9 94.9 95.0 95.1 95.1 9S.1 95.2GE 8001 80.0 86.8 89.6 90.5 92.9 93.4 94.4 94.8 95.1 95.5 95.5 95.7 95.7 95.8 99.8 95.8GE T00 83.1 86.9 89.7 90.7 93.2 93.7 94.8 95.2 95.4 95-8 96.0 96.1 96.? 96.2 96.2 96.2GE 6001 80.1 87.2 90.1 91.2 93.9 94.4 95.7 96.1 96.4 96.9 97.n 97.1 97.2 97.2 97.3 97.3

GE 500I 80.1 81.4 90.3 91.4 94.2 94.8 96.3 97.0 97.4 97.9 98.0 98.2 98.4 98.4 99.5 98.5bE 4CC0 80.2 87.4 90.4 91.6 94.5 95.2 96.8 97.6 98.1 98.7 98.9 99.1 99.3 99.3 99.3 99.4

GE 3001 80.2 87.5 90.5 91.7 94.7 95.4 97.0 97.9 98.4 99.0 99.3 99.5 99.7 99.8 99.8 99.8GE 2001 80.2 87.5 90.5 91.7 94.7 95.4 97.0 97.9 98.4 99.1 99.4 99.6 99.8 99.9 99.9 100.0GE OCI 80.2 87.5 90.5 91.7 94.7 95.4 97.0 97.9 98.4 99.1 9q.4 99.6 99.8 99.9 99.9 100.0

GE Cl 83.2 87.5 90.5 '1.7 94.7 95.q 97.0 97.9 98.4 99.1 99.4 99.6 99.8 99.9 99.9 ICC.0

TOTAL NUMBER OF O8CRVATION5: 7200

f 1

GL.B.AL CLIMATOLOGY BRANCH PERCENTAGE FREGUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY


AI wEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLAITSBURGH AFB NT PERIOD OF RECORD: 78-87

MONTH: DEC HOURSILSII: 0000-0200

CE ILING VISIBILITY IN STATUTE MILES

IN I GE CE GE GE GE GE GE GE GE GE GE GE GE GE GE G EFEET 10 6 5 4 3 2 1/2 2 1 1/2 1 1/14 1 3/14 5/8 112 5/16 1/4 0

- NO CEIL 1 28.6 29.2 29.4 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.S 29.5 29.5 29.5

GE 200001 30.1 3.8 30.9 31.0 31.0 310 31 .0 31.0 31.0 31.0 31.0 31.0 31.0 1.0 31.0 31.00 GE 18000 30.2 30.9 31.0 31.1 31.1 31.1 31.1 31.1 31.1 11.1 31.! 31.1 31.1 31.1 31.1 31.1

GE 1600C 30.2 3C.9 31.0 11.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1GE 14DOCI 30.8 31.4 31.5 31.6 31.6 31.6 31.6 31.6 31.6 71.6 31.6 31.6 31.6 31.6 31.6 31.6

GE 1200C 31.1 31.7 31.8 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9

GE 10000! 3'4.0 34.6 39.7 34.8 3.8 31.8 314.8 348 314.8 31.8,8 . 33:.8 314.8 34.8 34.8GE 9000 31.2 34.8 31.9 35.1 35.1 35.1 35.1 35.1 35.1

3 5.J 35.3 35.1 35.1 35.1 35.1 35.1

GE 80001 37.8 38.7 38.8 38.9 38.9 38.9 38.9 38.9 38.9 38.9 39.9 38.9 38.9 38.9 3R.9 !8.9GE 700CI 39.6 4.6 140.9 141.0 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1 41.l

GE 600C 42.5 43.8 44.1 44.2 44.3 44.3 44.3 44.3 44.3 14.3 44.3 44.3 44.3 44.3 44.3 44.3

GE 50001 47.6 49.2 19.7 49.8 49.9 49.9 49.9 49.9 49.9 49.9 49.9 149.9 49.9 49.9 49.9 49.9GE 45001 56-6 59.4 59.9 60.2 60.4 60.4 60.4 60.4 60.4 60.4 6n.% b0.4 60.4 6C.4 60.4 6.4GE 4001 62.4 65.8 66.7 67.2 67.4 67.5 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 676GE 350C0 66.2 69.8 70.8 71.3 71.6 71.7 71.8 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9GE 30U01 71.4 75.3 76.9 77.6 78.8 78.9 79.

0 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1

GE 2500 74.0 78.1 80.4 81.3 62.8 83.1 83.5 83.7 83.7 83.7 83. 7 83 83.7 83.7 67.7 3.7

GE 200C 75.6 80.5 83.3 814 86.1 86.6 87.3 8. 5 876 87.5 87. 7.5 87. 83.5 875 87.5GE 180C 75.9 81.3 814.1 85.3 R7.0 87.14 89.3 8 .5 88. 5 88 8 8.5 885 88.5 88.5 88.5 88.5GE 150C 76.0 81.8 814. 85.8 87.6 88a 89.1 89.7 89.8 89.9 8R.9 .9 89.9 89.9 89.9 89.9

GE 120C1 76.3 82.4 85.2 86.3 88.2 88.7 90.5 91.0 91.1 91.2 91.3 91.3 91.3 91.3 91.3 91.3

GE IOC1 76.3 82.8 85.6 87.1 89.1 89.7 92.fl 92.6 92.7 93.0 97.1 93.1 93.1 93.1 93.2 93.2GE 90C 76.3 81.8 85.7 87.2 89.5 90.0 92.5 93.0 93.1 93.8 93.9 93.9 93.9 93.9 94.0 914.0GE 8001 76.3 82.8 85.8 87.4

90.0 90.5 93.1 93.9 94.0 94.8 95.1 95.4 99.5 95.5 95.6 95.6

GE 70C0 76.8 83.5 86.6 8.3 90.9 91.b 91.3 95.1 95.3 96.2 96.5 96.8 96.9 96.9 97.0 97.0GE 600 76.8 83.17 86.7 88.6 91.3 92. 94.R 95.7 95.9 96.9 97.1 97.4 97.5 97.5 97.6 97.6

GE 50C1 76.9 83.9 87.0 88.9 91.6 92.5 95.3 96.2 96.5 97.5 97.7 98.1 98.4 98.4 98.5 98.5GE 14L01 76.9 83.9 87.0 88.9 91.6 92.5 95.3 96.2 96.5 97.6 97.8 98. 2 98.5 98.5 914.6 98.6GE 3OCI 76.9 83.9 87.0 P8.9 91.6 92.5 95.3 96.2 96& 97.8 9q.2 98.5 98.8 98.8 91,9 98.9E .Do 76.9 83.9 87.0 A8.9 91.6 92.5 95.3 96.2 96.7 98.0 90.4 99.0 99.5 99.5 99.6 99.6

GE 1001 76.9 83.9 87.0 p8.9 91.6 92.5 95.3 96.2 96.7 98.0 98.4 99.0 99.6 99.6 99.7 99.7

GE C1 76.9 83.9 37.1 88.9 91-6 92.5 95.3 96.2 96.7 98.0 98.4 99.0 99.6 99.6 99.7 100.0.............................................................. .. .. . ....o.............. ... . ... ....... . ........


- ,,.,

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CFILI4G VERSUS VISIBILITYUSAFErAC v6OM HOURLY 08SERVAIJONSAIN wEATHER SERVICE/MAC

STATION NUMBER: 72622S STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: TA-87MONTH: DEC HOURSILST): 0300-0500

CE ILING VISIBILITY IN STATUTE MILESIN GE CE GE GE GE GE GL GE GE GE GE GE GE GE GE GL

FLET i 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 L/2 5/16 1/4 0

NO CEIL 1 29.0 29.8 30.2 30.2 30.2 3U.2 3o.2 30.2 30.2 30.2 30.2 30.2 30.2 3L.2 30.2 30.2

GE 203001 30.5 31.3 31.7 31.1 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7

GE 1800C1 30.6 31.4 31.8 31.8 31.8 31.8 31.8 31.8 31.8 33.8 3.8 331.8 31.8 31.8 31.8 31.8GE 163001 3C.6 31.4 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.6GE 14000 31.1 31.8 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3GE 120001 31.9 32.7 33.1 33.1 33.1 33.1 33.1 31.1 33.1 33.1 33.1 33.1 33.1 33.1 33.1 33.1

GE 100001 33.9 34.8 35.3 35.3 35.3 35.3 3-.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3C.E 90001 33.9 34.8 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3 35.3GE 6000 37.0 38.2 38.6 38. 38.6 38.6 38.6 38.6 38.6 38.6 39.6 38.6 38.6 38.6 38.6 38.6GE 700C 38.6 4.0 40.4 40.4 40.4 40.4 40.4 40.4 40.4 40.4 40.4 4C.4 4n.4 4C.4 40.4 4U.4GE 60001 41.9 43.7 44.1 42 4.Z 44.2 44.2 44.Z 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2

6E 500C 47.0 45.0 50.0 50.1 50.1 Su.I 5.3 so.1 50.1 S0.1 50.1 5.1 50.1 5r.1 50.1 bO.1GE 45001 55.3 58. 59.1 S9.2 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4

GE 4ooCI 61.1 64.2 65.5 65.7 66.0 66.0 66.1 66.3 66.3 66.5 66.5 66.5 66.5 66.5 66-5 6t.5GE 35U0 64.4 64.0 69.8 70.1 70.4 70.4 70.5 70.8 70.6 7D.9 71.9 70.9 70.9 70.9 7 %9 7L.9GE 300Ci 68.1 72.7 14.8 75.5 76.5 76.5 76.6 76.8 76.8 76.9 76.9 76.9 76.9 76.9 76.9 76.9

GE 250Ci 72.0 77.6 an.2 81.3 82.8 82.9 83.7 83.9 83.9 84.0 84.0 84.0 84.0 84.0 84.0 q4.,

GE 2000i 74.4 81.2 84.2 85.5 87.0 87.2 88.6 88.8 88.8 *8.9 85.9 88.9 84.9 88.9 88.9 88.9GE 180C) 74.4 81.2 84.2 P5.5 87.0 87.3 88.8 89.0 89.

0 89.1 89.1 89.1 89.1 89.1 89.1 89.1GE 15001 74.5 81.8 85.1 86.3 87.8 48.4 90.2 90.8 90.8 91.1 91.1 91.1 91.1 91.1 91.1 91.1GE 120CI 75.1 82.5 85.7 87.0 88.6 89.2 91.5 92.0 92.0 o2.5 92.6 92.6 92.6 92.6 92.6 92.6

GE loc 75.1 82.8 86.0 87.6 89.2 89.9 92.4 92.9 92.9 93.3 93.4 93.4 93.5 93.5 93.5 93.5GE 9i01 75. 82.8 86.0 67.6 89.4 90.0 92.6 93.2 93.3 03.8 93.9 94.0 94.1 94.1 94.1 94.1

GE 80CI 75.2 83.0 86.3 88.0 89.0 90.4 93.1 93.8 94.0 94.4 94.6 94.8 94.9 94.9 94.9 94.9GE 7UCI 75.4 83.2 86.8 88.5 90.5 91.2 93.9 94,6 94.8 95.4 95.6 95.8 96.0 96.0 96.0 96.0

GE 60C1 75.5 83.3 87.0 88.9 91.1 91.7 94.5 95.3 95.5 96.0 96.2 96.5 96.7 96.7 96.7 96.7

GE 5ol 15.5 83.3 67.1 89.0 91.2 91.8 94.7 95.5 95.9 96.7 97.0 97.4 97.8 98.0 98.0 98.1GE 4013 75.7 83.7 87.4 89.4 91.5 92.2 95.2 95.9 96.6 97.3 97.6 98.1 98.5 98.6 98.6 98.7

GE 3uCl 75.7 83.7 87.4 89.5 91.6 92.3 9S.3 96.0 96.7 97.5 97.8 98.3 98.7 98.8 98.8 98.9GE 200I 75.7 83.7 87.4 89.5 91.6 92.3 95.3 96.0 96.7 97.5 97.8 98.6 99.2 99.4 99.5 99.6GE IDCl 75.7 83.7 87.4 89.5 91.6 92.3 95.4 96.1 96.8 97.6 90. 98.7 99.4 99.6 99.7 99.8

GE 1l 75.7 83.7 87.4 89.5 91.6 92.3 95.4 96.1 96.8 97.6 96.0 98.7 99.4 99.6 99.7 303.0


AL -_

GLOBAL CLIMATOLOGY BRANCH PERCEF1AGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMSER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD! 78-S7

mONTH: DEC HOURSILSTI: 0600-0800

CE lUNGVISIBILITY IN STATUTE MILESIN I GE GE GE rE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I il 6 5 N 3 2 112 2 1 112 1 1/q 1 319 5/8 112 5/16 111 U...........................................................................................................................................

NO CEIL I 26.6 27.0 27.2 27.2 27.2 27.2 27.2 27.2 27.2 27.2 27.2 27.2 27.2 21.2 27.2 27.2

lE 20001 28.3 2d.7 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9 28.9GE 180001 28.5 28.9 29.1 29.1 29.1 29.

I 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1GE 1600CI 28.5 28.9 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1 29.1 25.1 29.1 29.16E 140001 28.8 29.2 29.5 29.5 29.5 29.5 29.5 29.5 29.5 79.5 20.5 29.5 29.5 29.6 29.5 29.5

( GE 123001 29.5 30.0 30.2 30.2 30.2 30.2 30.2 30.2 30.2 30.2 377.2 3C.2 30.? 30.2 30.2 30.2

GE 100001 32.7 33.2 33.9 33.4 33.4 33-4 33.4 33.4 33.4 33.1 33. 33.4 33.N 33.4 33.4 33.4GE 90001 32.8 33.3 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7 33.7GE 8000i 37.3 37.8 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2 39.7 38.2 38.2 38.2 38.2 38.2GE 70OCI 39.7 4C.3 N0.6 90.8 N0.8 40.8 10.8 10.8 40.8 N0.8 10.8 10.8 N0.8 1..8 *8 4u.8GE 600CI 41.7 42.7 N3.0 13.1 13.1 93.1 43.1 13.1 43.1 4.3.1 13.1 13.1 13.1 1.3.1 .,.1 43.1

GE 50001 47.7 1..1 49.7 50.0 50.0 50.0 57.n 50.0 50.0 50.0 50.a SC. 50.0 50 0 57.0 50.0GE 450CI 55.6 57.8 58.6 58.9 59.0 59.0 59.0 59.0 59.0 59.0 S9.0 59.0 59.0 59.0 59.0 59.0GE 400CI 60.1 63.3 64.7 6s.2 65.7 65.7 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8GE 35001 63.3 67.0 68.9 69.6 70.3 70.1 70.5 70.5 70.5 705. 70.5 70.5 70.5 70.5 70.5 ?0.5GE 30001 67.7 72.9 79.9 75.9 77.% 77.6 77.8 78.0 78.0 78.0 7R.0 78.0 78.0 78.0 78.0 78.0

GE 2500I 70.9 75.9 79.0 80.4 82.5 82.8 83.1 83.3 83. 83.1 83.1 83.1 83.9 83.4 83.1. 83.GE 20001 79.5 80.3 83.7 85.5 87.5 87.8 88.6 88.8 88.9 89.0 89.0 89.0 89.0 89.0 89.0 89.0GE 180CI 74.9 8E.9 89.2 86.0 88.2 88.5 89.4 89.6 89.7 89.8 89.8 89.8 89.8 89.8 89.8 89.8GE ISUCI 75.2 81.6 85.3 87.1 89.9 89.7 90.9 91.2 91. 91.5 91.5 91.5 91.5 91.5 91.5 91.5GE 17001 15.3 82.3 86.1 88.0 90.2 90.5 91.9 91.3 92.5 92.6 92.7 92.7 92.7 92.7 92.7 92.7

GE 100C 75.8 82.5 86.5 88.1 90.8 91.2 92.6 92.9 93.2 93.3 93.5 93.5 93.9 93.9 93.9 93.9GE qU10 7S.5 82.8 86.8 88.8 91.3 91.7 93.1 93.7 98.1 94.2 91. 99. 99.7 94.7

9.7 99.7

GE 8011 75.6 83.1 87.2 89.4 91.8 92.5 99.0 99.5 95.1 95.2 95. 95. 96.0 96.0 96.0 96.0GE 7003 75.6 83.1 87.2 89.4 92.0 92.7 99.3 99.8 96. 95.5 95.7 95.7 96.3 96.3 96.3 96.3GE 62I0U 75.6 83.1 87.2 89.9 92.0 92.8 99. 99.9 95.5 95.6 95.8 95.8 96.6 96.6 96.6 V6.6

GE 50I 76.6 83.1 67.2 89.5 92.3 93.1 99.8 95.6 96.1 96.3 96.8 96.6 97.6 97.6 97.6 97.6GE 10CI 75.6 83.1 87.2 89.5 92.3 93.2 99.9 95.9 96.6 96.8 97.3 97.3 98.7 98.7 98.7 96.7GE 30CI 75.6 83.3 87. 89.7 92.5 93.1 95.2 96.2 96.9 97.1 97.6 97.6 99.0 o9.0 99.0 99.0GE 20C 75.6 83.3 87. 89.7 92.5 93.9 95.2 96.3 97.0 97.2 97.7 97.8 99.5 99.6 99.7 99.7GE 1001 75.6 83.3 87.4 89.7 92.5 93.1 95.2 96.5 97.1 97.3 9p.0 98.1 99.7 99.8 99.9 99.9

GE Cl 75.6 83.3 87. 89.7 92.5 93.1 95.2 96.5 97.1 97.3 98.0 98.1 99.7 99.8 99.9 100.0

...........................................................................................................................

T0181 NUMBER OF OBSERVATIONS: 930

GLLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FkOq HOURLY OBSERVATIONSAIR wEAIHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PEQIOO OF RECORD: 78-87MONTH: DEC HOURSILS7I: 0900-1100

CE ILING VISIBILITY IN StTTE MILES

IN I GE LE GE fE GE GE GE (f GE GE rE GE GE cc GE GE

FEET I 10 6 5 A 3 2 112 2 1 1/2 1 114 1 314 5/8 1/2 5/16 1/ 0

NO CEIL I 27.1 Z7.3 27.4 27.5 27.7 27.7 27.7 27.7 27.7 27.7 27.7 27.7 27.7 27.7 27.7 21.7

GE 2UO00I 31.5 31.7 31.8 31.9 32.2 32.2 32.2 32.2 32.2 32.2 3Z.2 32.2 32.2 32.2 32.2 32.2

GE 180001 32.3 32.5 32.6 32.7 32.9 32.9 32.9 32.9 72.9 32.9 37.9 32.9 32.9 32.9 32.9 32.9GE 160001 32.6 32.8 32.9 33.0 33.2 33.2 33.2 33.2 33.2 33.2 33. 2 33.2 33.2 33.2 33.2 33.2GE 140001 33.4 33.7 33.8 33.9 34.1 34.1 34.1 34.1 34.1 14.1 39.1 34.1 34.1 34.1 34.1 34.1

GE 120001 34.6 35.3 35.4 35.5 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7 35.7

GE IDUOI 39.4 9C.0 40.2 40.3 90.5 %0.5 40.5 40.5 40.5 40.5 40.5 40.5 90.5 40.5 40.S 40.5

GE 90001 39.5 4.2 4D. 40.5 90.8 40.8 40.8 40.8 40.8 40.8 90.8 40.8 40.9 40.8 90.8 40.8GE 800 43.2 44.3 4.6 44.7 99.9 44.9 49.9 99.9 44.9 44.9 44.9 44.9 44.9 44.9 99.9 44.9

GE 700CI 45.7 46.8 47.1 47.2 97.5 47.6 97.6 47. 47.7 .7 97.7 41.7 97.7 47.7 47.7 47.7GE 6floCl 48.1 49.2 49.7 49.9 So.4 50.5 50.5 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.6 so.b

GE 500CI 52.2 53.4 54.0 59.2 55.1 55.2 55.2 55.3 55.3 S5.5 55.5 55.5 55.5 $5.5 55.5 55.5

GE 9501! 58.3 6C.6 61.5 61.7 62.6 62.7 62.9 63.0 b3.0 63.3 63.9 63.4 63.4 63.4 63.9 t-3.4GE 410UC 61.8 69.3 65.7 66.1 67.3 67.5 68.2 68.3 68.3 68.8 68.9 68.9 68.9 68.9 68.9 68.9

GE 3500 64.7 67.7 69.8 70.3 71.6 71.8 72.5 72.6 12.6 73.1 73.2 73.2 73.2 73.2 73.2 73.2

GE 3oc1 68.8 72.7 75.5 76.9 78.7 78.9 79.e 80.2 80.2 80.8 80.9 81.9 80.9 80.9 80.9 80.9

GE 25001 71.4 79.1 78.9 80.9 82.9 83.2 84.4 84.8 84.9 85.5 85.6 85.6 85.6 85.6 85.6 FS.6GE 20001 73.1 78.6 8.7 83.5 86.2 86.7 88.0 88.4 88.9 89.7 89.8 89.8 89.8 89.8 89.8 89-8GE 180C1 73.5 79.1 82.4 84.3 67.0 87.4 88.7 89.1 89.7

90.4 90.5 90.5 90.5 9C.5 90.5 91.5

GE 15001 74.0 79.9 83.1 85.9 88.4 88.8 90.4 91.1 91.6 92.5 92.8 92.8 92.9 92.9 9?.9 92.9

GE 12001 79.0 75.9 63.L 85.4 88.5 89.0 90.6 91.3 91.8 92.9 93.2 93.2 93.4 93.4 93,5 93.5

GE 10001 74.2 8C.9 84.0 86.2 89.4 89.9 91.7 92.4 92.9 94.3 94.7 94.7 949.9 9.9 9S.1 95.1GE 9001 74.Z 8c.6 84.3 86.6 90.0 90.5 92.7 93.3 93.9 95.3 9 .8 95.8 96.1 96.1 96.2 96.2

GE 8001 74.4 81.0 84.5 87.0 9D.3 90.9 93.0 93.7 94.2 95.6 96.1 96.1 96.6 96.6 96.7 96.7GE 71C1 74.4 81.0 8.5 87.1 90.4 71.0 93.1 93.8 94.3 95.7 96.2 96.2 96.7 96.7 96.8 96.8GE 6U1 74.4 81.0 84.5 87.2 90.6 91.2 93.3 94.0 94.5 96.0 96.6 96.6 97.0 97.0 97.1 97.1

GE 5001 79.9 81.0 89.5 87.3 90.8 91.3 91.4 94.2 94.8 96.7 97.2 97.2 97.6 97.7 97.8 97.8

GE 40C1 74.5 81.1 84.6 87.4 90.9 91.4 93.5 94.5 95.5 97.3 9P.1 98.1 98.5 98.7 98.9 98.9uE 30C1 79.5 81.1 84.6 87.4 90.9 91.4 93.8 94.7 95.7 97.5 98.3 98.4 98.8 99.0 99.2 99.2

GE 2121 74.5 81.1 84.6 87.9 90.9 91.4 94.0 94.9 95.9 97.7 98.6 98.7 99.5 99.7 99.9 99.9

GE 100 719.5 81.1 84.6 87.9 90.9 91.4 94.1 95.1 96.0 97.8 98.7 98.8 99.6 99.8 100.0 100.0

GE CI 74.5 81.1 89.6 87.9 90.9 91.9 94.3 95.3 96.0 97.8 98.7 98.8 99.6 99.8 100.0 100:0


0ec_

: ... . .. . .. J l 4 ., _ ., . -

GL AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FkOM HOURLY OBSERVATIONSAll. WEATHER SERVICE/MAC

STATION NUMBER. 726225 STATION NAME: PLATTSYURGH AFS NY PEPIOD OF RECORD: 70-87MONTH: DEC HOURSILSTI: 1200-1400

CE LLiNE I31L NSATT IE


FEET I 1 6 5 4 3 2 1/2 2 E 112 1 1/4 1 314 5/8 112 5/16 1/4 0

C NO CEIL 1 29.4 29.7 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9

GE 200U00 33.2 33.8 34.0 34.o0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0 34.0

GE 180001 34.3 34.8 35.1 35.1 35.1 35.1 35.1 35.1 35.1 3S.1 35.1 35.3 35.1 35.1 35.1 35.1

GE bO01 34.6 35.2 35.4 3S.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4 35.4

GE 140UCI 35.5 36.0 36.2 36.Z 36.2 36.2 36.2 36.2 36.2 36.2 36.2 36.2 56.2 36.2 36.2 36.2GE 120001 37.6 38.4 38.6 38.b 38.6 38.6 38.6 38.6 38.6 38.6 3A.6 38.6 38.6 38.6 38.6 T8.6

6E 1DOUC 41.7 42.7 42.9 42.9 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0

GE 9000) 41.7 42.7 42.9 42.9 43.0 43.0 43.0 q3.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0

GE oool 44.4 45.5 45.7 45.7 45.9 45.9 45.9 45.9 45.9 45.9 495.9 45.9 45.9 45.9 49.9 45.9GE TOOCI 47.6 48.9 49.4 49.b 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9GE 6000( 49.0 5C.4 50.9 S1.1 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.40 51.4 51.4 51.4

GE SOOCI 53.8 55.6 56.1 56.3 57.1 57.2 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 51.3C GE 4s5CI 58.1 60.3 61.2 61.4 62.4 62.5 62.6 62.6 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7

GE 400IE 63.8 66.7 68.3 68.5 69.7 69.8 70.0 70.0 7.1 70.2 70.2 70.2 70.2 70.2 70.2 Tc.2

sE 355C| 67.8 72.2 74.3 74.8 7b.6 T6.7

TT.1 77.2 77.3 77.5 77.5 77.5 71.5 77.5 77.5 71.5

GE 3000) 72.9 78.4 80.9 81.8 84.0 84.1 84.6 84.7 84.8 85.2 85.2 85.2 85.2 85.2 85.2 05.2

GE 25001 74.7 81.0 83.7 84.8 87.1 87.2 88.1 88.2 88.3 88.6 88.6 88.6 88.6 88.6 88.6 88.6

GE 270CI 75.2 82.2 85.3 87.0 89.7 89.8 90.6 9J.9 91.1 91.4 91.5 91.5 91.5 91.5 93.5 91.5

GE 18U0 75.2 82.2 85.3 87.0 89.7 89-8 90.6 90.9 91.1 91.4 91.5 91.5 91.5 91.5 91.5 91.5

GE 150C) 75.3 82.6 85.8 87.5 90.5 90.8 91.9 92.2 92.5 92.8 92.9 92.9 92.9 92.9 92.9 92.9

GE 12001 75.4 82.8 86.1 88.0 91.2 91.5 92.8 93.0 93.7 9.0 9.2 94.2 94.2 94.2 94.2 94.2

GE 100) 7S.4 83.3 86.7 P8.5 91.7 92.0 93.5 93.8 94.4 94.7 95.3 95.4 95.8 95.8 9S.6 95.8

GE 900) 75.7 83.7 87.1 88.9 92.2 92.6 94.1 94.3 94.9 95.3 95.8 95.9 96.3 96.3 96.3 9b.3

GE 80C 75.7 83.7 87.1 88.9 92.3 92.7 94.6

94.8 95.5 95.8 96.3 96.6 97.0 97.0 97.0 97.0

GE 7001 75.7 83.7 87.1 89.0 92.6 93.1 95.1 95.4 96.0 96.3 96.9 97.1 97.5 97.5 97.5 975

GE 60C1 75.8 83.8 87.2 89.3 92.8 93.4 95.4 95.7 96.3 96.7 97.2 97.4 97.8 97-8 97.8 97.8

GE 50c1 75.9 84.0 87.4 89.4 93.0 93.7 95.6 96.0 96.7 97.3 97.8 98.1 90.6 98.6 99.6 98.6

GE 4001 75.9 84.U 87.6 89.7 93.4 94.1 96.0 96.6 97.2 97.8 98.5 98.1 99.4 99.5 99.5 99.5

GE 30C 75.9 84.0 87.6 89.7 93.4 94.1 96.1 9b.7 97.3 98.0 98.6 98.9 99.6 99.7 99.7 99.7

GE 20C 75.9 84.0 87.6 89.7 93.4 94.1 96.1 96.7 97.3 98.1 9A.7 99.0 99.7 101.0 100.0 100.0GE 3oaf 75.9 84.0 87.6 99.7 93.4 94.1 96.1 96.7 97.3 98.3 98.7 99.0 99.7 100.0 100.0 100.0

GE CI 75.9 84.0 87.6 89.7 93.4 94.1 96.1 96.7 97.3 98.1 98.7 99.0 99.7 100.0 100.0 1oL.0


7- -

GLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS ISIB1LITYuSAFETAC EbOM HOURLY OBSERVATIONSAlk WEATHER SERvICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 8-0?MONTH: DEC HOURS(LSTI: 1500-1700

............................................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE G7 GE GE GE GE GE GE GE GE GE GE GE GEFLET 10 b 5 4 3 2 1/2 2 1 1/2 1 114 1 3/4 5t It? S/16 1/4 0

NO CEIL 1 277 28.1 28.1 28.1 28.1 28.1 28.1 28.2 28.2 78.2 28.2 28.2 28.2 28.2 28.2 28.2

GE 200001 32.3 32.7 32.7 3Z.7 32.7 32.7 32.7 32.8 37.8 32.8 32.8 32.8 32.8 32.8 32.8 32.8GE 180001 33.0 33.4 33.4 33.4 33.4 33.4 33.4 33.5 33.5 33.5 33.5 33.5 33.5 T3.5 33.5 33.5GE 1600CI 33.4 33.9 33.9 i3.9 33.9 33.9 33.9 34.0 38.0 34.0 34.0 34.0 34.0 34.0 34.0 34.CGE 140001 34.9 35.4 35.4 35.4 35.4 35.4 35.4 35.5 35.5 35.5 35.5 35.5 35.5 '5.5 35.5 35.5GE 120001 36.9 37.3 37.3 !7.3 37.3 37.3 37.3 37.4 37.4 37.4 37.4 37.4 37.4 37.4 37.4 37.4

GE 100001 41.2 41.8 42.2 42.2 42.5 42.5 42.5 12.7 42.7 42.7 4?.7 42-7 42.7 42.7 42.7 42.7GE 9o00l 41.6 42.3 42.6 42.6 42.9 42.9 42.9 43.1 '43.1 43.1 43.1 43.1 43.1 43.1 43.1 '431GE 80301 '44.8 45.7 '6.0 4b.O 46.5 46.5 46.5 46.7 '46.7 46.7 46.7 46.7 46.7 46.7 46.7 4b.7GE 7000i 47.4 48.6 49.4 149.4 50.0 50.0 50.0 50.2 50.2 S0.2 50.2 50.2 50.2 S0.2 50.2 50.2G 1E 60001 49.5 50.6 51.6 51.6 52.3 52.3 52.3 52.5 52.5 52.5 52.5 52.5 52.5 S2.5 52.5 52.5

GE 50001 53.2 54.8 55.9 55.9 56.7 5b.7 56.7 56.9 56.9 56.9 56.9 56.9 5b.9 56.9 56.9 56.9GE 45J1I 59.7 61.6 62.7 62.7 63.8 63.8 69.0 64.2 64.2 64.2 64.2 64.2 b4.2 64.2 64.2 64.2GE 4001 66.3 68.6 70.1 7.2 71.6 71.b 72.0 72.3 72.3 72.3 77.3 72.3 72.3 72.3 72.3 72.3GE 35001 71.0 73.9 75.b 76.0 77.6 77.6 78.2 78.4 78.6 78.6 7R.6 7R.6 78.6 78.6 78.6 78.6GE 30001 74.8 78.3 80.4 81.0 83.1 83.2 84.0 84.2 84.4 84.4 849 89.5 84.5 P4.5 894.5 84.5

GE 25001 75.8 79.7 81.8 82.5 84.8 85.1 86.2 86.8 87.0 87.0 87.0 87.1 87.1 87.1 87.1 e7.1GE 200C1 76.7 81.0 83.3 8'4.0 86.5 86.9 88.2 88.8 89.1 89.2 89.2 89.4 89.4 P9.4 89.4 89.4GE 18101 76.7 81.0 83.4 84.1 86.7 87.1 88.4 89.0 89.4 89.5 89.5 89.6 89.6 89.6 89.6 P9.6GE 15001 76.7 81.1 83.8 84.7 87.4 88.2 89.6 90.5 90.9 91.3 91.3 91.4 91.4 91.4 91.4 91.4GE 12001 76.7 81.2 84.0 85.1 88.0 88.7 90.2 91.2 91.6 92.0 97.2 92.3 92.3 92.3 92.3 ,2.3

GE 1oo01 76.9 42.0 84.8 85.9 89.1 89.9 91.S 92.8 93.4 q4.C 94.7 94.9 95.1 95.1 95.1 95.1GE 9001 76.9 82.0 84.8 85.9 89.1 89.9 91.7 93.0 93.8 94.3 95.1 95.3 95.5 95.5 95.S 95.5GE 8001 76.9 82.0 89.8 85.9 89.1 89.9 91.7 93.1 93.9 94.5 99.3 95.5 95.7 95.7 95.7 95.7GE 7001 77.0 82.2 85.1 86.1 69.4 90.1 91.9 93.4 99.2 95.1 95.8 96.2 96.5 96.5 96.5 96.5GE 60CI 77.0 87.2 85.1 86.1 89.4 90.3 92.3 94.1 94.8 q5.7 96.5 96.9 97.1 97.1 97.1 97.1

GE 5001 77.0 82.5 85.4 pb.5 89.7 90.6 92.6 94.5 95.4 96.7 97.7 98.4 98.7 98.9 99.0 99.cGE 4001 77.0 82.5 85.4 86.5 89.7 90.6 97.6 94.6 95.5 96.8 97.8 98.5 98.9 99.1 99.9 99.4GE 3001 77.0 82.5 85.4 86.5 89.7 9C.6 92.6 94.6 95.5 96.8 9p.0 98.7 99.1 99.4 99.6 99.6GE -00 77.0 2.5 85.4 86.5 89.7 9C.6 92.6 94.6 95.5 Q6.8 98.' 98.8 99.2 99.5 99.7 99.7GE lul 77.0 82.5 85.4 86.5 89.7 90.6 92.6 94.6 95.5 96.e 98.0 98.8 99.2 V9.5 99.8 Ic.O

GE o| 77.0 82.5 85.4 86.5 89.7 90.6 92.6 94.6 95.5 96.8 98.0 98.8 99.2 99.5 99.8 1oc.0..... . ... . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . ........... . ° ° ° . ' o . .° . .. ... .. ... ... .. ... ..

TOTAL NUMBER OF OBSERVATIO.S: 930

...2 .i .,.m .i ~ i "

GLIASAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FkOM HOURLY OBSERVATIONSA81 WEATHER SERVICE/MAC


MONTH: DEC HOURSILSTI. 8 0

0.2 0

0C

CEILINU IIIIYI TTT IE

IN I GE GE GE GE GE GE GE 3E GE GE GE GE GE GE GE GLFLET I 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/14 58 l2 5/16 1/4 0

NO CEIL 1 30.7 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3

GE 20001 32.8 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3< GE 180001 32.8 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3

GE 160001 33.0 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5 33.5GE 140OCI 33.7 34.3 34.3 34.3 34.

3 34-3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3 34.3

GE 120001 34.6 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2 35.2

GE 100001 38.3 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 3b.92 GE 90001 38.6 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2

GE 80001 44.5 45.3 45.3 50.3 4S.3 45.3 45.3 45.3 45.3 45.3 45.3 45.3 45.3 45.3 4S.3 45.3GE 70001 47.2 48.3 48.3 48.3 48.3 18.3 48.3 48.3 48.3 48.3 4 F 3 48.3 48.3 48.3 48.3 48.3GE 600CI 49.1 5C.4 SO.4 50.4 50.4 50.4 50.4 50.4 50.4 50.4 50.4 50.4 50.4 5C.4 5.4 5C .4

GE SOOCI 52.3 54.4 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54.8 54 .GE 45001 59.3 63.3 63.8 63.8 64.0 64.1 64.4 64.4 64.4 64.4 64.5 64.5 64.5 64.5 64.5 b4.bGE 4OUOI 65.5 70.4 11.1 11.2 T.7 71.8 72.1 72.1 72.1 72.1 72.2 72.2 72.2 72.2 77.2 72.2GE 35U01 69.2 74.1 75.1 75.3 76.1 76.2 76.5 76.7 76.8 76.8 76.9 76.9 76.9 76.9 76.9 76.9GE 30001 72.3 77.7 78.9 79.3 80.4 80.5 80.9 81.1 81.3 81.3 81.4 81.4 81.4 81.4 81.4 81.4

GE 25001 74.0 8C.2 81.7 82.1 83.5 83.1 84.7 85.0 85.1 85.1 85.2 85.2 85.2 85.2 8s.2 85.2GE 200C1 75.1 si.0 83.8 848 86.6 87.0 88.1 88.5 88.6 88.6 88.7 88.7 88.7 88.7 89.7 88.7GE 18001 75.2 82.1 83.9 84.9 86.7 87.2 88.6 88.9 69.0 89.0 89.1 89.1 89.1 89.1 89.1 09.1GE 150Ci 75.5 82.5 894.9 85.9 87.8 88.3 90.0 90.4 90.6 90.6 9,.9 90.9 90.9 90.9 90.9 90.9GE 1O0C1 75.

5 82.5 84.9 86.0 88.0 88.7 90.8 91.3 91.4 91.7 92.0 92.0 92.0 92.0 92.0 92.0

GE 10001 75.6 82.9 85.5 86.5 89.4 90.3 92.7 93.4 93.5 93.9 94.5 94.5 94.6 q4.6 94.6 94.6

GE 9GOI 75.6 82.9 85.5 86.5 89.7 90.5 93.1 93.9 94.0 94.4 9s.0 95.0 95.2 95.2 95.2 95.2GE 8001 75.6 82.9 85.5 16.5 89.9 90.7 93.3 94.1 94.2 94.6 95.4 95.4 95.5 95.5 95.5 95.5GE TOC1 75-6 83.0 85.6 86.6 9U.0 90.8 93.4 94.2 94.3 94.7 95.5 95.5 95.6 95.6 95.6 95.6GE 6001 75.6 83.0 85.8 86.9 90.2 91.4 94.2 94.9 95.0 95.5 96.2 96.2 96.3 q6.3 96.3 96.3

GE 53CI 75.6 83.2 86.2 87.3 90.7 92.0 95.0 95.8 96.2 96.9 97.8 97.8 98.1 98.1 98.1 98.1

GE 40ol 75.6 83.2 86.2 87.4 90.9 92.2 95.3 96.1 96.6 97.3 98.4 98.5 98.7 98.8 98.8 96.8GE 300l 75.6 83.2 86.2 87.4 90.9 92.2 95.3 96.2 96.7 97.5 98.7 98.8 99.2 99.4 99.5 99.5GE 20CI 75.6 83.2 86.2 87.4 90.9 92.2 95.3 96.2 96.7 97.7 98.9 95.0 99.7 99.8 99.9 99.96E lOC 75.6 83.2 86.2 87.4 90.9 92.2 95.3 96.2 96.7 q7.8 99.0 99.1 99.8 49.9 100.0 100.0

GE CI 75.6 83.2 86.2 87.4 90.9 92.2 95.3 96.2 96.7 97.8 99.n 99.1 99.8 99.9 100.0 2C0.0

................ .............................................................................................................


*


USAFETAC FkOM HOURLY OBSERVAITONS

A1k WEATHER SERVICE/MAC

STArION NUMBER: 726225 STATION NAME: PLATTSURCH F8

NY PEPIOD OF RECOPD: 78-87MONTH: DEC HOURSILSTI: 210n2300

IN I GE GE GE GE GE GE GE GE GE GE CE GE GE GE GE GE

FLET f 10 6 5 4 3 2 1/2 ? 1 112 I 1/ 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 1 29.4 3C.3 30.3 30.4 30.7 30.7 30.7 30.7 30.7 30.7 3?.? 30.7 30.7 3C.7 3C.7 3.7

GE 200001 30.5 31.5 31.5 31.6 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9GE 180001 30.5 31.5 31.5 31.6 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9 31.9GE 16orc1 30.6 31.6 31.6 31.7 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.o 32.0 32.0 32.CGE 140001 31.4 32.4 32.4 32.5 32.8 32.8 32.8 32.8 32.8 32.8 32.8 32.8 32.8 32.8 32.8 32.8

GE 120001 32.0 33.0 33.0 33.1 33.4 33.4 33.4 33.4 33.4 33.4 33.4 33.4 33.4 33.4 33.4 33.4

GE IOOOCI 36.0 37.1 37.1 37.2 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 IT.5GE 90001 36.9 37.4 37.4 37.5 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9GE 8D01 40.5 41.6 41.7 41.9 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4GE 70011 41.6 42.9 4 3.o 43.1 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.6GE 600C 4 2.8 44.2 44.3 4.4 45.1 45.1 45.1 45.1 45.1 45.1 45.1 45.1 45.1 45.1 45.1 45.1

GE 5OCi 48.5 5C.5 5o.7 50.8 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5 51.5GE 450CI 57.6 61.3 61.8 61.9 62.8 62.8 63.0 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1GE 4OU01 63.5 67.4 68.2 68.4 69.4 69.4 69.6 69.7 69.7 69.7 69.7 69.7 69.7 69.8 69.8 69.8

GE 35CI 66.8 71.2 72.3 72.5 73.8 73.8 74.0 74.1 74.2 74.2 74.2 74.2

74.2 74.3 74.3 74.3GE 30001 71.7 76.7 78.5 79.1 80.7 80.7 83.9 81.0 81.1 81.1 81.1 81.1 81.1 81.2 81.2 81.2

GE 250CI 73.8 79.4 81.6 82.3 84.4 84.4 85.1 85.3 85.4 A5.4 85.4 85.4 85.4 85.5 85.5 15.5GE 200C1 74.8 81.2 84.0 85.0 87.5 87.7 88.8 89.2 89.3 89.3 89.4 89.4 89.4 89.5 89.5 89.5GE 180CI 75.0 81.4 84.4 85.3 87.6 88.0 89.1 89.5 89.6 89.6 89.8 89.8 89.8 89.9 89.9 89.9GE 15oC1 75.1 81.7 84.9 86.0 88.7 89.0 90.2 91.2 91.3 1.4 91.S 91.5 91.5 91.6 91.6 91.6GE 120C1 75.3 82.0 85.3 86.6 b9.4 89.8 91.7 92.7 92.8 92.9 9 10 q3.0 93.0 93.1 9T.1 93.1

GE lO 75.3 82.C 85.3 86.7 89.8 90.1 9?.4 93.7 91.9 94.1 94.5 94.5 94.5 94.6 94.6 94.6GE 9001 75.3 82.0 85.3 86.7 69.8 90.1 92.7 94.0 94.2 q9.4 94.9 95.1 95.1 95.3 95.3 95.3bE 80CI 75.4 82.2 85.5 86.9 90.3 90.6 93.2 94.6 94.9 95.3 95.8 96.0 96.0 96.1 96.1 96.1GE 7001 75.4 82.2 85.5 87.1 90.4 90.8 93.4 94.8 95.1 95.5 96.1 96.3 96.3 96.4 96.5 96.5

GE 60CI 75.4 82.2 85.7 87.2 90.6 91.4 94.2 95.6 95.9 96.2 97.0 97.3 97.3 97.4 97.5 97.5

GE 5001 75.4 82.2 85.8 87.3 90.8 91.6 94.5 90.1 96.7 97.0 98.0 98.3 98.3 8.4 98.5 98.5GE 4Uo1 75.4 82.2 85.8 87.3 90.8 91.6 94.8 96.5 97.1 97.5 98.5 98.8 98.8 98.9 99.0 99.0GE 30CI 75.4 82.2 85.8 87.3 90.8 91.6 94.9 94.8 97.4 98.1 99.0 99.4 99.4 99.5 99.6 99.6GE Q0C1 75.4 82.2 85.8 87.3 90.8 91.6 94.9 96.8 97.4 98.1 99.1 99.5 99.6 99.7 99.8 99.9

GE lc d 75.4 82.2 85.8 87.3 90.8 92.6 94.9 96.8 97.4 o8.1 99.1 99.5 99.7 99.8 99.9 1000

GE 0| 75.4 82.2 85.8 87.3 90.8 91.6 94.9 9b.8 97.4 98.1 9Q.1 99.5 99.7 99.8 99.9 100.0

.............................................................................................................................................


0 L

8GL8AL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURQENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEAIHER SERVICE/MAc

STATION NUMBLR: 726225 SIATICN NAME: PLATTSRURGH AFB NY PERIOD OF PECORD: 78-87

MONTH: DEC HOuRSILSTI: ALL

V C*L INC VISIRILITY 1N STAUTE MILESIN tCE GE GL GE GE GE GE GE GE GE GE GE GE GE GE GE

FLEI I Il 6 5 4 3 2 1/2 2 1 1/2 1 114 1 3/4 5/8 112 5/16 1/4 0

NO CEIL I 2R.6 29.1 29.2 29.3 29.3 29.3 29.3 29.3 29.3 29.3 20.3 29.3 29.3 25.3 29.3 25.3

GE 2000CI 31.1 31.7 31.8 31.9 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0

GE 180CI 31.5 3z.1 32.2 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 '2.3 32.3 32.3

GE 160001 31.7 32.3 32.4 32.4 32.5 32.5 32.5 32.5 32.5 32.5 32.5 32.5 32.5 32.5 32.5 3:.5

GE 14000: 32.5 33.0 33.2 33.2 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3 33.3

GE 1200 .I 33.5 34.2 33.3 3.4 33.4 34.4 34.4 33.5 32.6 34.5 34.5 34.5 34.5 34.5 34.5 34.5

GE 2ODD I 37,! 37.9 38.1 38.1 38.3 38.3 38.3 38.3 38.3 38.3 38.3 38.3 38.3 38.3 38.3 36.3GE 9001 37.3 38.1 38.3 38.3 38.5 38.5 38.5 38.5 38.S 38.5 3A.5 38.5 38.5 38.5 38.5 38.5

GE 800C1 41.2 42.1 42.4 42.4 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6 42.6GE 700C1 43.4 44.6 4#.9 45.0 4S.2 45.2 4S.2 45.3 45.3 45.3 4%.3 46.3 45.3 45.3 4S.3 45.3

GE 60UCI 45.6 4e.9 47.3 41.4 47.7 47.7 47.7 47.7 47.7 47.7 47.7 47.7 47.7 4T.7 47.7 47.7

GE 500cG 50.3 52.0 52.6 52.8 53.1 53.2 53:2 53.2 53.2 53.2 53.2 53.2 53.2 53.2 53.2 S3.2

0 GE 45 1 57.5 6C.3 61.1 61.2 61.8 61,8 62.0 62.0 62.0 62.1 62.1 b,l 62.1 62.1 62.1 62.1

GE 4OCI 6.1 66.3 67.5 67.8 68.6 68.7 68.9 69.0 69.0

69.1 60.1 69.1 69.1 69.2 69.2 69.2GE 35001 66.7 71.5 72.1 72.5 73.5 73.6 73.9 74.0 74.1 74.2 74.2 74.

2 74.2 74.2 74.2 74.2

GE 30001 7!.0 75.5 77.6 78.4 79.9 80.1 80.5 80.6 80.7 80.8 80.9 8c.9 80.9 8c.9 8[.9 8,.9

GE 2501 73.3 78.5 83.9 81.9 83.8 84.0 894 85.1 85.2 85.3 85.4 86.4 85.4 85.4 85.4 85.4GE 200C 74.9 81.9 83.7 85.U 87.1 87.5 88.5 88.9 89.c 89.2 89.3 89.3 89.3 8'.3 69.3 6.3GE 180C1 75.1 81.1 84.0 85.3 87.5 87.8 89.0 89.3 89.5 89.7 8.7 89.7 89.7 9.8 89.8 89.8

GE isO1 75.3 81.6 84.7 86.1 88.5 88.9 90.3 90.9 91.1 91.4 91.5 91.5 91.5 1 91.5 ql.5

GE 12001 75.4 81.9 85.1 $6.5 89.0 89.5 91.3 91.8 92.1 92.5 92.6 92.7 92.7 92.7 92.7 92.7

GE i0c0 75.5 82.3 85.5 87.1 89.8 90.4 92.4 93.1 93.4 93.8 94.2 94.3 94.4 94.4 94.5 94.5GE 9001 75.6 82.5 85.7 87.3 90.1 90.7 92.8 93.5 93.9 94.4 94.4 9q.9 95.1 95.1 95.2 95.2GE 860l 75.6 82.6 85.9 87.5 90.4 91.0 93.3 94.1 94.5 95.0 9S.5 95.6 95.9 95.9 95.9 95.9

GE 7CI 75.7 82.7 86.0 87.8 90.8 91.4 93.7 94.5 94.9 Q5.5 96.3 96.2 96.5 Q6.5 96.5 96.5

GE 6GCf 75.8 82.8 86.1 87.9 91.0 91.8 94.1 95.0 95.4 96.1 96.6 96.8 97.0 97.1 97.1 97.1

GE 50CI 75.8 82.9 86.3 88.1 91.3 92.1 94.5 95.5 96.0 96.9 97.5 97.7 98.1 98.2 99.3 98.3GE 4001 75.8 82.9 86.4 88.2 92.4 92.2 94.7 95.8 96.4 97.3 98.0 98 . 3 98.7 98.9 98.9 99.0GE 3221 75.8 83.0 86.4 88.3 91.4 92.3 94.8 95.9 95.6 97.5 91.3 96.6 99.1 99.2 99.3 99.3GE 20CI 75.8 83.0 86.4 88.3 91.4 92.3 94.8 96.0 96.6 97.6 98.4 98.8 99.5 99.6 99.7 99.8

GE I Ol 75.8 83.0 86.4 88.3 91.4 92.3 94.8 96.0 96.7 97.7 98.5 98.9 99.6 09,7 99.9 99.9

GE . 0 75.8 83.0 86.4 88.3 91.4 92.3 94.8 96.0 96.7 97.7 9.5 96.9 99.6 99.1 99.9 100.0

T0AL NUMBER Or OBSERVATIONS: 7435

2

GLBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VIS'BILIT7USAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTS8URGH AFR NY PEPIOD OF RECORD: 78-87

MONTH: ALL HOURStLSTI: ALL.. .. .. . .. ... ........ .... ...... .......... .... .................................zi ; ' ; ;; ; ; ' ; 6CE IL ING VISIBILITY IN STATUTE MILES

IN I GE CE GE GE GE GE GE 6 GE GE GE GE GE GE GE bE

FLET I 1O 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 1I16 1/4 0

NO CEIL 1 42.4 43.4 43.7 43.9 44.1 44.1 44.2 44.2 44.2 44.2 44.3 44.3 44.3 44.3 44.3 14.3

GI 200001 46.2 47.4 47.7 48.0 48.3 48.3 4R .4 48.N 48.4 48.4 4A.4 NA.4 48.q 48.4 4R.5 48.5GE 280001 46.6 47.7 48.1 48.3 48.6 48.6 48.7 48.7 N8.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8GE I 600C1 46.6 47.8 48.1 48.4 48 .7 NB. 4 t.8 48.8 48.8 48.8 49.9 4A.9 4B.9 4B.9 48.9 46 .9

GE 140001 47.4 48.6 49.0 49.2 49.5 49.6 49.6 49.7 49.7 49.? 49.7 49.7 49.7 49.? 49.7 49.7

GE 120003 49.1 50.4 50.8 51.1 51.4 51.5 51.5 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.7

GE 1nO01 52.8 54.3 54.9 55.Z 55.6 SS.7 55.8 55.8 55.9 55.9 55.9 55.9 55.9 55.9 5t.9 55.9

GE 90001 53.2 54.8 55.4 55.7 56.1 5b.2 56.3 56.4 56.4 56.4 56.4 56.4 56.4 56.4 56.' 5L.4GE Bacot 57.2 59.1 59.8 60.2 60.7 60.8 60.9 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.1 b1.1

IE 700CI 59.4 61.5 62.3 62.8 63.3 63.4 63.6 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7

GE 60001 61.5 63.8 64.7 65.2 65.9 66.0 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3 b6.4 66.4

GE 5OOCI 65.7 6B.5 69.7 70.3 71.0 71.2 71.4 71.5 71.5 71.5 71.6 71.6 71.6 71.6 71.6 71.6

GE 45001 70.1 73.4 74.8 75.4 76.3 76.5 76.7 76.9 76.9 7b.9 77.3 77.0 77.0 77.0 77.0 77.0GE 40003 73.8 77.6 79.3 80.1 81.3 81.5 81.B 82.0 62.0 e2.1 67.1 82.1 82.Z 82.2 82.2 F2.2GE 350 01 76.4 8C.6 82.4 83.3 84.6 84.8 85.2 85.4 85.5 95.5 85.6 85.6 85.6 85.6 85.6 85.6GE 30001 79.0 43.8 86.0 87.a 83.7 88.9 89.5 89.7 89.8 89.8 8o.9 89.9 89.9 9.9 9(.

0 90.0

GE 25021 80.0 95.2 87.b 08.6 90.4 90.7 91.4 91.7 91.8 91.9 92.9 91.9 92.0 92.0 97.0 9.0

GE 2001 80.7 86.2 88.8 89.9 91.9 92.2 93.1 93.5 93.6 93.7 93.8 93.8 93.P 93.9 93.9 93.9GE 18001 80.8 86.3 88.9 90.1 92.1 92.5 93.5 93.8 93.9 94.0 94.1 04.1 94.1 94.1 94.2 94.2GE 150C 80.9 86.6 89.3 90.5 92.7 93.1 94.1 94.6 94.8 95.0 95.1 95.1 95.2 95.2 9 .2 P5.2

GE 120C3 81.0 86.8 89.5 90.8 93.0 93.5 94.6 95.1 95.3 95.6 94.7 95.7 95.8 95.8 95.8 95.8

GE 10003 81.1 97.0 89.9 91.2 93.6 94.1 95.3 95.9 96.1 96.5 96.7 96.7 96.8 96.9 96.9 96.9

GE 90C| 81.1 87.1 90.0 91.3 93.8 94.3 95.5 96.2 96.4 96.8 97.0 97.1 97.2 97.2 97.2 97.3GE 800a 81.? 87.2 90.1 91.4 94.0 94.5 95.8 9b.5 96.7 97.1 97.4 97.5 97.6 97.7 97.7 97.7

GE 70t 83.7 %17.2 90.2 91.5 94.1 94.6 96.0 96.7 96.9 97.4 97.6 97.7 97.9 97.9 91.0 Q8.0GE 60C1 81.2 87.2 90.2 91.6 94.

2 94.b 96.2 97.0 97.2 07.7 98.0 98.1 9S.2 08.3 99.3 96.4

GE $003 81.2 87.3 90.3 91.7 94.4 95.0 96.4 97.3 97.6 93.1 9R.S 98.6 98.8 98.9 99.9 99.0GE 40CI 81.2 81.3 90.3 91.8 94.5 95.1 96.6 97.5 97.9 98.4 98.a 98.9 99.1 99.2 99.3 99.46E 30CI 81.2 81.3 90.3 91.8 94.5 9b.1 96.7 97.6 98.0 98.6 99.0 99.2 99.4 99.5 9q.6 99.7

GE 2003 81.2 81.3 90.3 91.8 94.5 95.1 96.7 97.7 98.1 98.7 99.2 99.3 99.6 q9.7 99.8 99.9

O 10c 81.2 87.3 90.3 91.8 94.5 95.1 96,7 97.7 98.1 96.7 99.2 99.3 99.6 99.7 99.9 I0.O

6E 03 81.2 R7.3 90.3 91.8 94.5 95.1 96.7 97.7 98.1 98.7 99.1 99.3 99.6 99.7 99.9 100.0...........................................................................................................................

TOTAL NUMRER OF OBSERVATIONS: P7643

GLLBAL CLIMATOLOGY BRANCH PEWCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOUQLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726ZZ5 STATICN NAME: PLATTSBURGH AF9

NY PERIOD OF RECORD: 78-87MONTH: JAN

....................................................................................................................................................PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS I TOTAL

ILST) I 0 I 2 3 N 6 7 8 9 10 MEAN 085

00-02 17.3 l0.6 15.1 .4.0 6.8 92q

03-05 17.8 16.9 14.8 51.4 6.9 930

06-08 8.9 21.0 22.8 47.3 7.4 930

09-11 3.9 25.3 23.3 47.6 7.6 929

12-14 3.3 24.b 24.5 47.5 7.7 930

15-17 2.3 27.4 25.4 44.9 7.6 930

18-20 9.7 25.6 17.1 47.6 7.1 930

21-23 16.5 18.0 17.6 48.0 6.9 930

OTALS 10.0 2Z.2 20.1 47.8 7.3 7438

STATION NUMBER: 72622S STATICN NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 7A-87

MONTH: FEB

....................................................................................................................................................PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS I TOTA L

ILST) I 0 1 2 3 4 6 6 7 8 9 10 MEAN OS

00-02 I 2%.b 17.5 15.4 42.4 6.2 844

03-05 1 2D.7 17.1 17.5 44.8 6.6 842

16-06 10.2 24.C 22.1 43.7 7.1 845

09-11 5.7 28.1 20.0 40.2 7.2 846

12-14 1 5.8 26.1 25.4 42.7 7.3 846

16-17 6.3 26.2 24.9 42.6 7.3 846

18-20 13.6 26.6 22.6 31.2 6.6 846

21-23 1 25.0 18.5 16.4 40.1 6.0 845

TOTALS . 14.0 23.0 21.3 2.7 b.. 6TbO

...................... . . .. ... . ..............................................................................

-ANL

GL6BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOURLY OBSERVATIONSAI& WEATHER SERVICE/MAC

STATION NUMBER: 77t225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-R7MONTH: MAR

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTALILST) I 0 1 2 3 4 S 6 7 8 9 10 MEAN OhS

...... .. ................................................................................. .................................00-02 1 24.1 I5.b 14.9 49.2 6.3 930

03-05 22.5 17.0 14. 3 46.2 6.4 930

04-08 9.1 23.9 25.8 41.2 7.2 927

09-11 8.1 26.9 25.7 39.4 7.1 92?

12-14 5.8 3C.0 26.3 37.9 7.1 927

15-17 5.0 30.3 28.2 36.5 7.1 928

18-20 I 11.1 28.1 21.6 39.2 6.7 93C

21-23 1 22.2 J9. 1 14.9 43.8 6.3 930

TOTALS 1 13.5 23.9 21.5 41.2 6.6 7429

................................................................................ ..................................................................

STATION NUMBER: 726225 STATIC NAME: PLATTSBURGH AFB NT PERIOD OF PECORD: 74-8MONTH: APR

PERCENTAGE FREOUENCY OF TENTHS OF TOTAL SKY COdERHOURS I TOTALILSTJ I 0 I 2 3 4 6 6 7 8 9 ID MEAN OHS

........... . . ........ ....................... ............................................................................00-02 i.2 15.2 17.1 43.4 6.3 960

03-CS 19.6 16.1 17.8 44.6 6.6 900

06-08 10.0 2z.7 28.9 38.4 7.1 B99

09-11 I 7.4 25,6 27.3 39.7 7.2 90

12-14 I 4.4 28.6 29.4 37.6 7.3 900

15-17 3.8 Z6.1 32.4 37.7 7.5 9UO

18-20 b.1 28.8 26.2 T8.9 7.1 900

21-23 22.3 18.3 15.1 4.2 6.3 900

TOTALS 1 12.2 2. V 24.3 aC.6 6.9 7199

........................................................................................................... ......................................

6LLBAL CLIMATOLOGY BRANCH PERCENTAGE FNEQuENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOURLY OBSERVATTONS

AI, WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATIC NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 7P-8MONTH: MAY

PERCENTAGE FkEQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TO

iLST) 1 0 1 2 3 4 5 6 7 A 9 10 MEAN OE.......... .. :;2...... .. .................................................................... ... b .... ... ;........i.........

09-02 I 21.7 21.A 17.6 70.9 b.1 9

0 3-6S I 1.O 24. 3 23. 7 38.0 b. 7 9

06-08 7.2 25.0 32.5 35.2 7. 9;

09-11 I 2.1 31.5 33.5 32.9 7.3 9g

12-14 1.2 29.6 35.2 34.0 7.5 9,

15-17 1.5 29.1 34.5 34.8 7.5 9

18-20 2.4 29.9 32.0 35.7 7.4 9.

21-23 1 15.7 24.4 22.5 !7. 6 6. 5 9R

TOTALS 1 8.2 27.0 28.9 35.9 7.L 74 1

STATION NUMBER: 726225 STATICN NAME: PLATTSURGH AFB NY PERIOD OF RECORD: 7P-87MONTH: JUN

PERCENTAGE FREQEUNCY OF TENTHS OF TOTAL SKY COVERHOURS I ToILST) 1 0 1 2 3 4 s 6 7 K 9 10 "FA N 0

.......... ... ; .......... ;.........................................................................:8.... 28. 2........ .......

3)0-02 I 24.U 26.0 21.8 20.2 s.t p

0 3-05 9.7 31. 5 28.0 3.. t . 5 8

06-0 5.4 33.4 29.7 3 1.5 b.6 B

0q-1 I 2.0 35.2 31.9 70.9 7.0 B

12-14 I 1.3 32 .4 30.1 1c.1 7.4 9

1 - 7 1.4 31. 3 30.9 28. 3 7. 3 F

18-20 I 4.2 36.6 30.7 20.3 6.7 e

21-23 16.5 73. 1 25.4 25.0 5.8 f

TOTALS 8 1 32.2 30.6 29.1 6.6 71

. . . ..- ... .. . S . . ...

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVER

USAFETAC FROM HOURLY OBSERVATIONSAIM WEATHER SERVICEIMAC

STATION NUMBER: 726225 STAIICK NAME. PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87MONTH: JUL

PERCENIAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS I TOTAL

ILSTI 1 0 ] 2 3 4 5 6 7 a 9 1D MEAN 08S

00-02 29.9 29.1 23.2 22.7 5.2 930

0!-05 14.0 35.3 27.8 22.9 5.9 929

06-08 7.1 38.7 29.7 24.5 6.3 926

09-11I 2.0 43.b 29.5 25.0 6.5 923

12-14 1 .4 38.7 37.0 23.9 6.9 930

15-17I .1 39.6 35.2 25.2 6.9 930

18-20 1.2 40.4 32.b 25.8 6.7 926

21-23 15.6 34.7 24.8 24.8 5.8 927

TOTALS 8.2 37.5 30.0 24.4 6.3 7421

STATION NUMPER: 726225 STATION NAME: PLAITSBURDH AF8 NY PERIOD OF RECORD: 78-87MONTH: AUG

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAL

ILSTI 1 0 1 2 3 4 5 6 7 8 9 10 "EAN 08S.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....................... ; 2............. . .. 1 " "" ; ..........

00-02I 29.2 24.Z 2 3G.9 5.7 918

03-05 19.3 31.1 21.8 27.9 5.7 924

06-08 4.6 38.2 29.9 21.3 6.6 927

09-II 1.3 39.2 32.3 27.2 6.8 928

12-14 .5 34.7 38.5 26.2 7.1 930

15-17 .9 36.6 36.7 25.9 1.0 930

18-20 1.9 39.2 31.1 27.7 6.7 930

21-23 I 17.3 33.4 21.7 27.6 5.7 927

TOTALS 1 8.8 34.6 29.1 27.6 6.4 7414

... ....... S. . .. .. . .. .. .

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY CCVERUSAFETAC FROM HOURLY OASERVATIONSAlk WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-87

MONTH: SEP

. . . ......................................................................... ...........................................PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HouRs | TOTIAL

7LST) I 0 1 2 3 V 5 6 7 8 9 10 MEAN ONS

..............................................................................................................................................00-02 1 28.0 22.2 18.3 31.5 5.5 892

03-05 1 Z4.4 24.9 20.4 3C.8 5.6 893

06-08 3.9 0.9 27.8 27.9 6.5 899

09-11 3.2 37.3 39.4 25.0 6.7 900

12-19 2.0 33.2 39.5 25.3 7.1 898

15-17 2.7 38.4 33.2 25.7 6.7 898

18-20 9.6 37.3 75.2 27.9 6.2 896

21-23 25.5 22.5 20.7 31.2 5.7 893

TOTALS 12.4 32.0 27.4 28.2 6.3 7b9..............................................................................................................................................

STATION NUMBER: 726225 STATION NAME: PLATTSRURGH AFR NY PEPIOD OF RECOPD: 7-87MONTH: OCT

..................................................................................... ......................M NH C

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS

TOTALILST) a 0 1 2 3 V s 6 7 8 9 10 "EAN OS

..............................................................................................................................................00-02 23.8 17.4 21.1 37.7 6.i 930

03-05 1 22.7 19.9 19.0 38.4 6.1 930

06-08 7.0 27.1 32.7 33.2 7.1 929

Oq-l1 I .5 29.0 31.8 39.6 7.2 93C

1-1R 1 9.8 27.7 33.3 39.1 7.c 930

15-17 5.2 29.: 32.7 33.0 7.1 927

i1-20 L4.2 27.1 26.2 32.5 6.9 930

21-23 1 23.8 20.7 20.6 39.6 6.0 927

TOTALS 1 13.3 24.A 27.2 39.8 6.7 7928

. .. ............................... . .......................................................................................

- -a-- A.-A

GLCBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOURLY OBSERVATIO14S


STATION NUMBCR: 726225 SIATION NAME: PLATTSBURGH AFe NY PERIOD Of RECORD: ?6-87

MONTH: NOV

..............................................................................................................................................PERCEMTAGE FREQUENCY Of TENTHS OF TOTAL SKY COVER

HOURS I 7OTAL

ILSTi 1 0 1 2 3 9 5 6 7 8 9 10 MEAN 0BS

..............................................................................................................................................00-02 I 16.6 14.4 18.6 s0.4 7.1 897

03-05 18.6 12.7 18.6 50.2 7.1 900

06-08 5.5 20.8 25.8 97.9 7.7 899

09-11 2.1 21.4 33.9 42.6 7.9 900

12-14 1.9 21.8 32.9 99.4 8.0 899

15-17 2.0 22.7 30.9 99.4 7.9 900

18-20 1 9.7 19.2 18.2 52.9 7.5 900

21-23 13.3 16.2 16.7 53.7 7.4 899

TOTALS 8.7 18.7 24.9 98.3 7.6 7199

STATION NUMBER: 726225 STATIC% NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 79-B7

MONTH: DEC

..............................................................................................................................................PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS I TOTAL

(LSTI I 0 1 2 3 9 6 7 8 9 IO MEAN OBS

..............................................................................................................................................00-02 1 12.6 14.4 18.2 59.8 7.b 930

03-05 I 13.9 14.9 17.1 54.6 7.5 929

06-08 1 6.2 17.8 25.3 50.6 7.9 930

09-11 1 1.9 20.8 31.7 96.1 8.1 930

12-14 1 1.6 21.3 1.1 9O6.0 B.C 930

15-17 1 1.9 21.7 29.9 46.9 8.0 929

18-20 11.9 17.1 18.2 53.2 7.5 928

21-23 19.0 12.6 17.3 56.1 7.5 927

TOTALS 7.8 17.6 23.5 51.0 7.8 7432

.. . . . . . . . . . .. .. . . . . . . .. . . . . . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . . .

SLEBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVER

USAFETAC FROM HOURLY OiSERVATToNS



MONTH: ALL

......................................................................................................................PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS TOTAL

(LST) 0 2 3 4 5 6 7 8 9 10 MEAN OBS

JAN ALL 1.0 22.2 20.1 47.8 7.3 7438

FEB 19.0 23.0 21.3 '1.7 6.8 6760

MAR 13.5 23.9 21.5 41.2 6.8 7429

APR 12.2 22.9 24.3 O.6 6.9 7199

MAY 8.2 27.0 28.9 35.9 7.0 7419

JUN b.1 32.2 30.6 29.1 6.6 7168

JUL 8.2 37.5 30.0 24.4 6.3 7421

AUG 8.8 39.6 29.1 27.b 6- 7414

SEP 12.9 sZ.0 27.4 28.2 6.3 7169

OCT 13.3 24.8 27.2 39.8 6.7 7428

NOV 8.7 18.7 29.9 98.3 7.b 7199

DEC 7.8 17.6 23-5 S1.0 7.8 7932

TOTALS lU.4 26.9 25.7 77.6 6.9 E7466

pppppppp ARARA RRHPPPPP TTITITTY r[CEF[EELCppppppppp AAAA P~rM RflRP R TTTITIT rc[ELEfCtE

'pp PP AA A A R P RR TTcEPP PP AA AA PP RR TTIrppppppppp A A A A FPRIqPRITZ9 T T (EFEPEPPPPPPPP ARAA'AAAAA PRRIRT TTpp AAAARRA PP RP TI7Cpp' A& AA PIT PR TY Ptpp AA AA RR RP Ty CCELEltEE

PP A A A A PP R P T T t~trEEE

AM 1L -EN

TEMPERATURE AND RELATIVE HUMIDITY SUMMARIES

LUMULATIVE PERCENTASE FREQUENCY OF OCCUPRENCE OF DAILY MAXIMUM IMINIMUM AND MEAN) TEMPErATUES:

DATA DEqIVL FROM SUMMAkY OF OAY DATA.

PEYCENTAGE TABULATIONS pRESENTED BY S-DEGREE FAHRENHEIT INEREPFNTS PLUS THE MEAN, STANDARD DEV-

IATIONS AND TOTAL OBSERVATION COUNT.

THE MINIMUM TAILE ALSO INCLUDES A 33 FAHOLNHEIT DEGREE INCRvMENT.

SINCE MANY STAIIONS/SITLS DO NOI HAVE MAXIMUM/MINIMUM THERMOMETERS, THESE TEMPERAIURES WERE SELECTED PY SLANNINGTHE HOURLY LBSERVATIoNS FOR THE HIGHEST AND LOWEST VALUES.

STATISTICS DO NOT INCLUDE INCUMPLETE MONTHS ITHOSE CONTAINING ASTERISKSI.

FOUR OR MOTE COMPLETE MONTHS APE REQUIRED FOP COMPUTATION AND DISPLAY OF STATISTICAL VALUES.

LXTPEME MAXIMUM AND MINIMUM VALUES:

TATA DERIVED FROM SUMMARY OF DAY DATA.

PRESENTED ARE THE HIGHEST (LOWEST) TEMPERATURL FOR THE MONTH FOR EACH YEAR.

ALSO PRESENIED ARE STATISTICAL VALUES WITH THE SAME LIMITATIONS MENTIONED ABOVE.

AN A'TERISK INDICATES AN INCOMPLETE MONTH.

TEANS AND STANDARD DEVIATIONS FOR DRY BULB IWEI BULR AND DEW POINT) TEMPERATUPES:

DATA DERIVED FROM HOURLY ORSERVATIONS.

DATA PRESENTED BY THE STANDARD 3-HOU: TIME GROUPS PY MONTH, MONTHLY AND ANNUALLY (ALL YEARS COMBINEDI.

PRESENTED ARE MEANS, STANDARD DEAIATION AND OBSLRVATION COUNTS.

CUMULATIVE PERCENTAGE FOEDUENCY OF OCCUPHENCL OF RELATIVE HUMTDITIY:

GAYA DERIVEC FOOM HCURLY OBSERVATIONS.

SUMMARIZED AY THE SIANDATD J-HOUR TIME GROUPS PY MONTH. MONTHLY AND ANNUALLY ^PLL YEARS COMBINEDI.

PERCENTAGE VALUES PRESENTED IN 10 DEGfE[ INCREMENTS OF RLAIIVE HUIDITY.

ALTO PPESE4TED AXE THE MEAN VALUES ANt OBSERVATION COUNTS.

S6.

GLGBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MAXIMUM TEMPERATURESUSAFETAC FROM SUMMARY OF DAY DATAAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: Sb-87

TEMP(FlI JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

GE 9S1 .1 .5 .7 .1 .1GE 901 .6 3.1 4.7 1.5 .3 .9GE 851 .2 2.6 7.6 16.9 8.9 3.5 .2 3.4GE 801 .1 1.2 7.0 23.0 45.5 29.6 9.2 .5 9.8GE 151 .2 2.5 16.3 46.6 75.10 60.9 20.6 2.0 10.9GE 701 .5 7.0 31.7 70.1 91.7 84.1 41.4 ?.1 .2 28.0GE 651 1.4 13.9 48. 9 87.3 99.1 95.7 63.5 16.8 1.4 35.9GE 601 3-3 22.9 67.1 96.1 99.9 99.4 B3.6 35.5 6.1 .5 43.2GE 551 .3 .7 5.5 36.4 84.5 99.4 100.0 100.0 94.7 58.2 14.5 1.6 49.9GE 501 .9 1.5 11.8 53.4 95.5 100.G 99.4 75.9 27.8 4.3 56.2GE 451 4.1 4.6 23.0 72.9 98.9 1O0.O 90.5 44.3 8.8 62.6GE !01 9.6 12.8 40.9 88.4 100.0 98.5 64.6 19.5 69.8GE 351 22.3 27.5 63.2 97.8 99.7 82.5 37.2 77.8GE 301 35.4 45.4 80.2 99.6 100.0 9S.3 S8.0 84.7GE 251 54.1 60.5 91.7 99.9 98.7 74.3 90.1GE O 201 68.6 75.6 97.2 100.0 99.7 05.3 94 ,0GE 151 79.6 87.7 99.0 100.0 91.9 96.6GE 101 89.0 92.8 99.9 97.1 98.3GE 51 94.6 97.0 100.0 99. 0 99.2GE al 98.3 99.4 99.9 99.8GE -51 99.4 99.9 99.9GE -101 99.9 100.0 11.0 100.0GE -151 100.0 100.0

MEAN I 24.8 27.2 37.8 51.8 69.6 73.6 78.6 75.9 67.8 56.1 43.7 30.9 S2.7

SD 11.907 11.175 10.219 10.761 9.724 7.957 6.271 6.472 8.434 8.904 9.482 10.874 21.022TOTAL OBS I 978 904 992 960 992 963 992 992 960 992 960 992 11674

.... ........................................................................................................................

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MINIMUM TEMPERATURESUSAFETAC FROM SUMMARY OF DAY DATAAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 56-Al

................................................................................................................................

TEMP(F3I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL................................................................................................................................GE 751 .3 .0GE 701 .1 .5 3.5 1.4 .1 .5GE 651 .6 5.8 18.1 13.0 4.5 3.5GE 601 Z.6 20.9 48.1 36.5 11.0 .3 10.1GE 551 .q 11.6 4A.4 75.7 61.7 26.7 3.1 .4 19.2GE 501 2.8 26.2 73.6 92.3 861 45-5 12.0 1.9 28.6GE 451 .1 .4 8.5 4B.4 90.4 99.0 96.8 66.7 24.7 5.6 .2 37.0GE 401 .3 2.0 20.9 69.5 98.0 100.0 99.8 83.6 144.[ 16.4 1.4 44.9GE 351 1.6 2.1 9.1 42.6 87.5 99.9 100.0 96.2 65.0 29.3 5.8 53.6GE 331 3.2 3.7 16.1 54.o 93.1 100.0 98.0 70.8 37.1 9.7 57.4GE 3c1 6.5 7.5 24.8 69.2 97.6 99.7 81.9 50.2 17.4 63.2GE 251 12.5 16.D 44.3 90.2 99.8 100.0 94.8 71.5 28.3 71.7GE 201 22.4 25.0 63.5 96.9 100.0 99.6 84.5 42.9 78.2GE 151

30.

8 36.3 76.6 99.5 100.0 93.9 £4.2 82.8

GE 101 43.0 49.7 86.T 100.0 98.5 18.2 87.4GE 51 56.3 63.6 92.2 99.8 76.9 91.1GE of 69.7 75.3 96.7 100.0 F8.8 94.3GE -51 80.7 84.8 99.1 94.3 96.bGE -lol 89.4 91.7 99.8 17.7 98.3GE -151 94.6 97.0 100.0 59.0 99.2GE -201 98.4 99.2 99.7 99.8GE -251 99.3 100.0 1C0.0 99.9GE -301 99.9 100.0GE -351 100.0 1000.

............................................... ....................................................................................MEAN I 7.2 9.3 21.8 33.6 44.2 53.8 58,9 56.6 46.6 38.2 29.5 15.8 34.8So 9 14.041 13.580 10.646 7.640 8.064 6.853 6.134 6.569 8.694 8.727 9.514 13.030 20.027

TOTAL OBS I 978 904 992 960 992 960 992 992 960 992 960 992 11674....................................................................................................................................

a ALl

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MEAN TEMPERATURESUSAFETAC FROM SUMMARY OF DAY DATAAIR WEATHER SERVICE/MAC

STATION NUMBER: 72b225 STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 56-A7

TEMP(F)I JAN FEB MAR APR NAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

GE 851 .2 .0GE 801 .Z 1.2 2.9 1.0 .1 .5GE 751 .6 5.0 15.1 7.3 2,? 2.6GE 701 .1 4.2 Z0.2 66.6 31.5 1..0 .2 9.5GE 651 .8 12.2 45.3 79.6 6'.1 21.9 1.8 19.0GE 6ol .1 6.2 25.6 76.1 96-5 88.1 AZ.2 7.3 .4 28.4

GE 551 .6 10.1 47.6 92.4 99.9 9B6 66.7 19.5 2.3 36.7GE 50l .2 2.0 19.0 72.2 99.2 100.0 99.9 87.0 39.9 8.7 .5 66.3GE 451 .2 .7 5.7 37.5 91.0 99.9 100.0 97.3 61.8 21.0 2.6 51,8GE 401 1.8 2.5 16.9 65.8 98.9 100.0 99.9 83.2 37.0 7.1 59.6GE 351 7.6 9.0 33.3 85.9 99.9 100.0 95.3 59.7 18.6 67.7&E 301 15.5 19.6 55.1 96.0 100.0 99.7 79.q 31.9 75.0GE 251 27.1 32.3 72.5 99.3 100.0 91.9 50.1 61.3GE 201 39.5 68.8 85.5 99.9 97.7 (4.2 86.5GE 151 56.3 62.9 93.3 100.0 99.5 78.7 91.1GE 10 71.1 77.6 9T.7 100.0 e8.0 94.6GE 51 81.7 88.1 99.5 96.8 97.1GE :1 99.6 93.9 100.0 97.6 98.6bE -51 95.5 97.3 S9.5 99.4GE -101 98.6 99.6 59.9 99.8GE -151 99.6 100.0 100.0GE -201 99.9 lEoeo 10O.0GE -251 100.0 100.0

o..o..... ..o.o.o . ....... . ...,.......°.... ..-..... ......o . ......... ........ ........ ...o.... ........ ........ ......° .

MEAN I 16.2 18.5 30.0 62.9 56.6 66.0 69.0 66-5 56.6 7.6 36.9 23.6 66.0so I 12.388 11.802 9.7o5 8.275 7.691 6.501 5.403 5.726 7.836 8.001 8.963 11.65 40.1 8

IOTAL O8 I 978 906 992 960 992 960 992 992 960 992 960 992 1167'...,°........eo..eee..e.eo......e.o.eO.eo.oo...e. , oo..o...........*oe.ee..o.eee....e.a..e.........e...w...e...°e.°o.,°e..oe° .

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF MAXIMUM TEMPERATUREuSAFETAC IFRO" DAILY OBSERVATIONS1AIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: 5b-Ri

WHOLE DEGREES FAHRENHEITI .M-O-N.--H-S- ALL

YEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MONTHS

5 I *36 46 44 60 84 95 AB 88 B? 73 bS 5? 95

57 48 53 53 82 84 93 89 90 as 72 58 5A 93sB 1 45 39 51 74 77 82 90 ST 57 78 60 R1 9059 46 42 Sb 68 8? 94 92 95 88 78 b2 b 9560 39 45 SO 70 el 85 89 92 86 68 6Z 56 92b 43 46 68 67 52 89 87 85 90 76 b6 47 9062 46 43 71 69 95 91 86 57 86 71 51 50 9563 44 40 6? 65 76 91 95 a5 so 86 64 43 9564 50 40 59 10 93 97 97 86 77 71 63 60 9765 47 52 50 70 s0 92 85 93 86 73 63 53 93bb I 8 SS 5 69 82 8s 98 86 83 69 6b 56 9867 50 39 56 67 76 s8 a7 82 8l a5 62 5R 8868 40 47 71 52 72 85 93 87 80 80 62 44 9369 44 35 48 72 84 B 93 90 89 to 56 45 9370 46 44 4S 83 79 87 86 8 5 7 76 b2 58 BR71 40 47 46 57 84 91 6 81 S6 83 70 53 9172 49 47 q 73 83 90 90 al 85 68 61 47 9073 48 46 b0 80 7q 89 95 91 86 66 61 5 95

74 56 48 66 83 85 b6 90 83 81 70 71 53 9075 s0 46 50 72 93 89 92 94 ?5 71 68 57 9476 I 46 50 68 87 79 88 86 83 8R 71 61 45 B77 32 46 73 s0 89 85 98 92 81 72 b6 49 9878 53 36 52 67 as 54 94 86 87 69 64 53 9479 49 4o 65 72 93 9o 90 86 al 79 b3 b1 93so 52 46 55 65 85 92 89 90 8 T1 54 50 9281 47 59 75 78 77 93 96 85 79 (0 63 50 9682 42 49 56 82 50 79 95 85 89 70 6b 63 9583 49 45 53 78 72 95 91 89 94 78 59 so 9584 41 49 49 74 79 93 89 87 78 79 62 54 9385 46 52 63 83 86 a1 86 87 85 68 66 4R 87

........................................................................... ......................................................................

NOTES * IBASED ON LESS THAN FULL MONTHS$I IAT LEAST ONE DAY LESS THAN 24 OB5


• 4

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF MAXIMUM TEMPERATUREUSAFEIAC (FROM DAILY OBSERVATIONS)AIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD Of RECORD: 56-87

...............................................................................................................................................WHOLE DEGREES FAHRENHEIT

I -M-O..N.T-H-S- ALLYEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTHS

A6 98 38 AD 79 91 89 90 81 77 To SB 43 91BT 39 36 65 T8 AT aX 94 93 78 67 SB so 99

... ... .. ...

S.D. 5I 60 5.5094 9.791 7.8091 6.188 41.289 3.753 3.563 9.395 5.808 4.7 5.2 2.929TOTAL OBSRA 978

9DN 992 96 992 960 992 992 960 992 9S0 992 11679

NOTES * (BASED ON LESS THAN FULL MONTHSI (AT LEAST ONE DAY LESS THAN 24 0 O5-

.

o~eeoeeoeeoeet e ~ooeloo ~ oe~o~eeeeo~emeumeoeoeeooooeomee~o~eoeeo LoIi "'''''''' " "''HOL[DEGEES AHR[HU-

2 NONTHS L

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF MINIMUM TEMPERATUREUSAFETAC (FROM GAILY OBSERVATIONS)AIR WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR Ny PERIOD Of RECORD: 56-RI

WHOLE DEGREES FAHRENHEITI| -M-O-N-T.-H-S- ALL

YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV ELC MONTHS

56 #5 -7 -8 24 28 41 49 47 31 25 10 -5 -657 -27 -5 10 19 29 qO 52 43 37 25 1 1 -2758 -10 -13 17 27 30 40 50 I8 37 24 5 -13 -1359 -12 -16 -1 21 33 45 53 46 33 20 8 -2 -L660 -8 1 1 26 39 42 49 43 35 28 19 -6 -861 -19 -18 0 27 29 39 49 45 3S 21 lb 4 -1962 I -11 -21 -1 20 32 43 43 46 33 23 16 -1o -2163 -7 -19 -3 19 28 43 48 45 30 30 16 -15 -1964 -10 -7 13 10 32 39 53 86 32 20 9 -5 -1065 -19 -9 6 15 30 38 42 37 28 24 15 -1 -1966 -20 -14 10 23 28 37 87 46 32 17 9 0 -2067 -15 -25 -10 17 28 80 49 44 3 25 12 -4 -2568 -29 -10 -2 18 29 42 87 81 39 22 13 -17 -2969 -9 -3 -7 13 27 38 42 44 32 21 8 -11 -1170 -19 -15 1 16 31 41 46 41 39 22 13 -21 -2171 -21 -24 1 15 27 3? 46 45 38 31 11 -5 -2472 -13 -21 -12 11 33 43 46 45 33 18 8 -4 -2173 -17 -17 15 19 31 35 49 41 31 27 14 -16 -1774 -27 -10 2 20 28 42 48 46 26 17 9 -4 -2775 -8 -15 5 20 31 42 50 43 37 28 15 -11 -1576 -27 -5 1 16 32 37 47 37 34 22 12 -11 -2777 -24 1 18 15 29 42 44 45 80 24 11 -15 -2878 -6 -19 -2 20 29 45 43 43 31 19 7 -4 -19

79 -18 -22 6 24 31 39 46 43 30 26 19 -8 -2280 -5 -3 -8 23 35 34 89 8T 26 23 9 -23 -2381 I -34 -2 7 22 29 43 46 81 33 20 1T 482 I -15 -B 5 j41 3S 40 44 40 39 23 10 -6 583 -5 -21 13 26 30 36 '6 45 37 24 is -9 -21841 -20 -18 -11 25 29 37 52 42 32 26 17 -3 -2085 -9 -is -2 21 31 4o 45 46 33 26 j8 -20 -20

NOTES * (BASED ON LESS THAN FULL MONTHS)8 EAT LEAST ONE OAT LESS THAN 28 085*


- L.loL

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF MINIMUM TEMPERATUREUSAFCTAC IFROM DAILY OBSERVATIONS1AIR WEATHER SERVICE/MAC

STAIXON NUMBER: 726225 STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: 56-81

...................................................... ....'.......'....... ................................................WHOLE DEGREES FAHRENHEIT

-M-O-N-T-H-S- ALLYEAR JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NOV DEC MONTHS•~~~~~~... ...... ...... ;; ............. ; " 3 '"" ' ' 0

86 f 1 -0 3 8 0 36 4 4 3 0 0 1 -20

871 -19 -19 -1 2N 28 41 44 4o 33 23 10 -2 -19

MEAN I -15.9 -13.0 1.6 19.9 30.2 39.9 47.2 43.5 33.7 Z3*3 11.7 -7.S -20.2

S.D. I 7.803 74172 8.136 4.819 2.814 Z.833 3.031 2.817 3.540 3.501 4.306 7.162 5.630TOTAL OBS I 978 904 992 960 992 960 992 992 9bo 992 960 992 11614

........... .................................................................................................................

NOTES * IBASED ON LESS THAN FULL MONTHSIA 'AT LEAST ONE DAy LESS THAN 24 0es)

LL

GLtBAL CLIMATOLOGY BRANCH DRY-BULB TEMPERATURFS DUG F FROM MEANS AND ST&N&RO OCVIhTIONS

USAFETAC HOURLY OBSERVATIONSAlA, WEATHER SERVICE/MAC

STATION NUMBER: 726.25 STATICN NAME: PLATTSBURGH AFR NY PERTOD OF RECORD: 78-87

HOLRSI STATSI ''JAN PUB MAR APR MAY JUN JUL BUD KUp OCT NOB {EO 066

I PLAN I 15.1 11.8 2A.5 39.9 $0.6 57.6 63.5 6T.O 5. 43.6 35.5 24.8 41.1

J0-0,1; 50 1 1p7 72 lq.L02 11.418 8.015 6.499 7.297 6.649 6.828 8.9q? 9.887 9.672 12.723 18.97c

11T OP1 S30 846 93U 90 930 903 93C 930 goo 930 920 930 1056

IME0N I 14.1 16.5 21.1 38.1 48.6 E-5.s 61.2 $A,8 KI. 42.3 34.6 r4.1 39.5

03-051 SO I 13.9S9 14.376 12.010 7.806 8.708 7.454 7.007 7.126 9.277 9.930

9.834 13.076 16 76

ITOT O8 1 Q30 846 930 900 930 9J 9

3C 93C 900 930 900 93 10S 6

I PLAN I 11.4 15.1 2-,t 40.2 52.5 60.5 66.0 62.5 4.{D 43.0 3'9.5 23.6 41.2

D6-081 ST I 14.C71 14.768 12.145 P.061 7.818 6.387 5.914 6. 77 8.979 9.511 9.951 13.2S 2C3,1

1TOT O85 j3I t64 930 900 93 930 93C 930 9 90 0 9 U30 930 10996

I MEAN I 16.? 20.? 12.1 45*1 s8.2 86.1 12. 69 .3 61 .9496 38.7 :66 "'L.

09-Ill SO S 12.419 12.727 11.327 9.032 8.130 6.823 5.668 b.969 7.776 7.757 9.226 11.948 20.821307T 051 930 646 93

0 900 930 900 930 930 0

93 970 973 10556

12-141 SD 11.250 11.906 11.339 1C.556 9.035 7.839 6.451 6.537 8.250 B.157 9.287 10.977 21.092301 O951 93o 646 930 900 930 900 93C 930 900 930 900 930 109S6

...........................................................................................................................................................I MEAN I 23".6 25.5 36.6 51.1 63.6 71.3 77.3 73.9 65.9 93.1 40.6 28.7 50.g

15-17, 50 I 11.L82 11.745 j348 10.935 9.490 8.313 6.555 6.662 8.239 8.572 9.400 13.861 21.313

TOT OEs4 90 66 930 9c0 930 90J 930 930 911 930 9oo 910 12q6

I M'EBN 13.T6 21.6 33.3 47.4 59.6 67.1 .9 .. 68.6" 9.T 47.6 37.b 6.7 46.7

18-20; S I 12.33T

12.780 10.852 9.717 8.951 3.66c,

6.466 6.653 8.375 9.133 9.431 11.652 20.7t9

ITO? OI S 91; 646 930 901 930 921 930 930 90 933 90 928 1 r94..... o.o.. o ... o .. ...o . .... ....o... .. o .... . . ... .. .. o. .. .... .. ... ... ...... ....... I,,.. .. ..... •..... ..... . . . .,

I MEAN I 15.8 19.3 0.b e42. 53.7 60.8 66..

63.1 55-6 44.9 "3.I 25.3 3.3Zj-3l S) 1 13.265 13.299 10.862 8.427 8.310 6.684 6.330 6,311 6.452 9.677 9.477 12.369 19.3:9

TOT ORSI 9TU

846

930 9c00 930 901 9!r 930 910 933 900f 927 Lo9'... .o .. .. .o .. o ~ o.. .. .o oo .. • o ... .oo o.o.o. ° .o ~ . .. .. .. . .. oo. .. .. . .... ....... •..... ..... .. o .

I MOON I 16.1 20.2 31.4 44.4 56.2 63,6 69.9 66.K 18.5 47.1 37.4 26.1 W.

ALL 1 Sr 3 I 13.50 11.657 11.935 1.204 I0.100 9.135 P.51.

8.521 9.94? 1 .003 9.861 2.292 20.61O0RSIOT O1sI 7440 6166 7443 7200 744D 7r 744C 794 '20c 7443f)

7 2Cc 3471S 87b3

0o ooo,, ,o .o .oo,, .., , ........... ...., ., .o .., ....o ... ,o.,.,o.........,., .. ,........ .., ..°, .o, ..o .o .,., ...,,o .o ., .. , ,..o,.oo

AN

GLC9AL CLIMATOLOGY BRANCH WEI-BULB TEMPERATURES DEG F FDO" MEANS AND STANOARO OEVIATIONSUSAFETAC HOURLY OBSERVATIONSAlh WEATHER SERVICE/MAC

STATION NUMBER: 726Z25 STATICN NAME: PLAITSBURGH AF8 NY PEV1OD OF RECORD: 78-87

HO0.RSl STATS I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT Nov LEC ANNLST 1 I

I MEAN I 13.4 16.0 2b.u 36.2 b.4 53.8 59.4 57.6 50.5 40.8 32.8 i2.7 3b.1UO-021 SO I 12.954 13 . 3b9 10.809 7.597 6.214 7 .1 b 6.,417 6.817 8.2B 9.217 9.251 12.0ob 18.L74

IlOT OPSI 930 646 930 90C 930 903 93C 930 900 930 900 930 10946

1 MEAN 1 1 2.6 14

.9

24.9 34.9 44.9 52.4 57.8 55.9 89.1 373.7 32.1 22 . 1 36.903-051 SO I 13.166 13.861 11.438 7.612 8.435 7.364 6.756 7.220 8.691 9.310 ,.432 12.359 18.L13

ilCT 09S| 430 146 930 900 930 90) 93o 930 900 930 900 930 10956

I MEAN I 1i.0 14.2 24.9 36.3 47.5 S5.8 61.1 58.5 50.7 40.3 31.9 ;1.7 36.0J6-08 So I 13.3Z4 14. 56

1 1.5

38 7.711 7.644 6.641 5.805 b.771 8.317 9.002 9.485 12.5T 19.12G

lICT OSI 930 846 930 90c 93o 900 93C 930 900 930 9 0 93C 109E6

I MEAN 1 14.8 18.4 78.4 39.7 50.8 59.0 64.5 62.8 55.5 45.o 35.0 Z4.1 41.609-111 SC 1 11.717 12.259 10.461 7.924 7.60b 6.528 5.493 6.122 7.285 7.554 8.757 11.133 18.aez

1TT ORSI 930 846 930 900 930 90a 93C 930 900 930 900 930 10156

I MEAN I 17.8 21.5 31.U 42.2 52.9 60.6 65.9 64.2 57.5 47.0 37.0 26.3 43.8

12-141 S I 1I0.154 11.353 10.02 e.317 7.778 6.62b S.S81 6.188 7.318 1.665 8.663 10.188 18.33C

110T 081 430 6.6 930 900 930 90 93G 930 90 930 900 930 105b

I ?.EAU 1 18.1 Z2.1 31.6 42.4 53.4 60.? 616.C 64.2 5 7.6 46.8 36.2 25.8 43.95-175- SDl 5 i 10.389 11.084 9.851 8.27f 7.734 6.572 5.396 5.960 7.280 7.955 8.793 10.158 18.279

13 SRS1 430 846 930 900 930 900 930 930 90 930 900 930 IC956

........................................................................................................................I !

MEAN 1 15.6 1 .3 29.4 40.9 51.5 59.1 64.5 62.2 S4.7 43.b 34.2 23.9 41.7

18-201 5O 1 11.626 12.132 9.900 7.932 7.720 6.637 5.527 6.143 7.607 8.554 8.961 11. 03 18.610

ITOT 07S1 930 846 930 900 930 900 93C 930 900 930 900 928 10954

I MEA " S,.1 17.3 77.6 38.2 48.7 56.1 6.5 59.7 57.0 .7 33.2 2.1 39.5

21-231 So I 12.489 12.702 i0.14 7.573 6.064 6.779 6.002 6.435 7.914 8.999 9.095 11.637 18.261

ITCT OPSl 430 846 930 900 930 900 97c 930 900 930 900 921 10953

I MEAN " 14.8 17. 28.0 38.9 49.5 57.2 62.6 60.6 53.5 43.1 34.1 23.7 4[ .4ALL I SO I 12.251 12.94 1U.813 8.343 8.4 24 7.384 6.554 7.116 8.441 8.979 9.275 11.507 18.6 1

HOLRSITrT oASl 7Nr 6 763 7440 7200 7440 7203 744C 74 0 7200 7440 ZOO 7435 87643

Ai L

GL3AL CLIMATOLOGY BRANCH DEW-POINT TEMPERATURES VE6 F FROM MEANS AND STANDARD DEvIATIONS

USAFETAC HOURLY OBSERVATIONS

Alb WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLAITSBURGH AFR Ny PEROIDI OF RECORO: 78-87

°°e~°.o e~°6 o' t. i~o .°° .°Q °°° '.. ° ° , *° . . o.° ... .. ; ...... ..... ° °° ° .... ........ o1101.85 STATS JAN FEB MAR APR MAY JUN JUL AUG SEP oCT NOV CEC 81.6

LST 9 I

00-021 SO 9 15.265 16.480 13.496 9.842 10.127 8.504 7.481 7.780 8.897 10.046 10.964 14.029 20.509703 ORSI 930 846 930 900 930 900 930 930 900 930 900 930 1095t

9 MEAN 9 4.9 1.2 18.6 29.4 40.5 49.4 ffS. 53.6 46.5 36.2 27.4 16.2 3Z2

03-U51 SDO 15.434 17.117 14.063 S.965 10.097 8.705 7.562 8.089 9.165 10.14 11.049 14.346 2C.478

IrOT 0B59 930 846 930 900 930 90d 93C 930 900 930 900 930 1095b

.... A. 9'; " . 6: . .5 18 .6 30: . .1 42..1 S . 57;" .7 5.5 4.7. 36.8 27.1 15.7 33.0

06-081 So 9 15.762 17.435 14.239 1E.084 9.8?0 8.629 6.97C 7.780 8.913 9.887 10.967 14.505 21.3 2

ITO7 OS9 930 846 930 900 930 900 93C 930 900 930 900 930 lcsCb

09-119 SD I 14.799 16.i61 13.749 IC.388 10.459 8.875 7.397 8.014 8.879 9.553 10.771 13.233 21.211910BSI 930 846 930 900 93

0 900 930 930 900 930 900 930 10456

9 MEAN 9 8.6 11.3 21.2 37.1 43.5 53.3 59.3 S8.1 51.0 qDoo 29.8 18.6 35.7

12-141 50 I 13.589 15.417 13.234 1C.524 11.256 9.2o 7.911 8.498 9.403 9.963 10.971 12.554 20.543

197 01'S S30 846 93U 900 930 900 93C 930 900 930 900 930 10956

9 ,EAN 9 A.7 11.4 21.6 72. 43. 52.7 98.8 7.6 50.9 39.7 9.2 18 .4 35: .. .5

15-171 SO 9 13.545 15.106 13.041 10.526 11.423 9.265 7.915 6.296 9.446 1.213 11.132 1Z.7S8 2C.379917

1 OBSI S30 846 930 90C 930 900 930 930 900 930 900 930 10916

18-20 SO 1 14.335 15.583 12.784 IC.357 10.998 8.933 7.58C 7.750 8.818 9.967 11.003 13.310 2L.739T 0851 930 846 930 900 930 g00 930 930 900 93o 900 928 10954

21-2319 14.968 15.903 12.829 9.839 10.370 8.,541 7.232 7.565 8.756 9.974 10.910 13.697 2C;649

9101 0IISI 930 946 93 930 903 93 C 930 900 930 90 927 13953

... ME;AN' ... 6.5 .... 1 .2 31 . .1 4: .. 2:. . 52 ... 5... 562. . 49 ..1 78 . . 28.3 7.1 34 .. ... 2 ..

ALL 9 SO 9 14.800 16.29 13;.77 IC.241 10.633 b.93 7.631 8.128 9.183 12.056 II.001 13.597 20.768HOLRSIOOT 0 459 7440 6768 744U 7200 7440 72aj T44C 7'40 7200 7440 7200 7435 67641

. . . . .. . . . .. .. .. .. ...-. .. .. .. .. .. .. ... .. .. ..-. ..J.. ..,. . ..,-.. ... .. ..--

.. ..- -

. ...-...o . ..

GLBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 7262Z5 STATICh NAME: PLATTSBURGH AFB NY PL0IO0 OF REtORD: 7P-87

MONTH: JAN............................................. . . ... ...........................

MONTHI HOURS I " PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THA, I MEAN I 503L

I tLST) I............................................................................. IRELATIVEI NUP II 10t 20% 3 % 40% 50% bI% 713 80 9C% IHUMIOITY OBS I

...................................................................................................

JAN CO-02 I 1CO.O ICO.C 100.0 97.6 85.6 65.8 40.1 18.5 4.9 66.8 93C

C3-05 ICO.0 1C0.0 100.0 97.q 85.7 67.5 42.4 21.8 5.9 67.5 93C

C6-08 I110.0 1O.1 100.0 97.4 86.2 67.3 3.7 21.7 6.3 68.0 93C

09-1 1 110.0 100.0 99.6 94.2 79.6 59.1 36.8 16.3 9.4 64.6 93L

1I1Z-14 t 110.0 100.0 98.8 92.0 74.8 51.9 28.3 11.2 2.0 61.5 931

I 15-17 ICO. 1O0.1 99.0 91.6 73.2 98.7 27.! 13.7 2.8 61.2 93f

18-20 I110.0 IuO. 99.4 95.7 80.9 59.6 35.9 17.5 5.7 69.9 931

21-23 1 130.0 10.C 99.9 96.9 8.2 61.2 39.1 19.0 6.1 66.3 93L

ITCTALS I 1Co.O 1O0.0 99.6 95.9 81.2 60.1 36.6 17.9 4.7 65.1 749

....... ......................................................................................................

• -" L

GLLBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCUORLNCE RELATIVE HUMIDITYUSAFEIAC FROM HOURLY OBSERVATIONSAll WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PEPIOD OF RECORD: 78-87MONTH: FEB

MOHI HOURS I PERCENTAGE FREQUENCY OFR RELATIVE HUMIDITY GREATER THAN I MEAN I TOTALo°.

I (LSIt I............................................................................. IRELATIVEI NUP I

I I lOI 202 302 40% 508 60% 7t% 808 90% IHUMIOITYI OBS I

LB CO-02 1CO.0 1C0.C 99.6 95.3 83.7 61.3 36.3 21.9 9.5 66.5 84(

1 C3-05 1 1C0.0 IO.7 100.0 96.0 88.8 64.5 37.9 21.6 11.2 67.5 84C

I\Cb-08 1 1Co.0 10.0 99.6 96.5 86.9 65.0 38.1 21.9 11.0 67.5 84t

C9-11 I 1Co.O ICO.C 99.1 91.6 73.2 49.5 28.1 16.9 7. 62.1 84t

12-14 1C0.0 ICO.C 97.9 88.7 62.8 37.7 22.5 13.6 4.6 S8.2 84C

15-17 I ICO.O ICOC 98.3 85.1 57.4 33.5 20.8 12.6 4.5 56.6 84(

18-20 'CO.0 100.0 99.5 92.' 72.6 '6.9 28.0 16.3 6.7 62.0 84C

21-23 1 IC0°.0 ICO.C 99.6 94.7 81.0 59.6 33.5 20.9 9.2 65.5 84f

ITOTALS I 100.0 1O.0 99.2 92.5 75.' 52.3 30.7 18.2 8.0 63.2 676E°.. .°, .. ... .° . .° ...° . ....° . .° ...° .°.° ..°.°.° .° ...°... ...S°.°. .°°..°.°. . .°. .. °°. °°. ,.

-- 46

GLCBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCUPRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLY CBSERVATIONS

AIF WEATHER SERVICEIMAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PEPIOD OF RECORD: 78-87

MONTH: MAR

MO NYH( HOURS I PERCENTA6E FREQUENCY OF RLLATIV[ HUMIDITy GREATER THAN I MEAN I TOTAL

| (LSTI I............................................................................. RELATIVEI NUPIl o t01 20? 30% 402 50 6i1 701 801 902 IHUM IDT I OB

I IMAR 1 00-02 Ic.3 IO.C 99.6 96.6 AR.0 7C.1 49.1 30.5 14.7 70.5 93E

r) I IC3-05 Ic.0 100.0 99.7 98.0 90.9 75.6 53.2 30.5 14.3 71.9 93L

06-OR I .0.0 1L0.C 99.8 97.5 88.7 74.7 52.7 29.4 11.8 71.0 93C

1 09-11 ICo.o 99.6 98.6 90.1 75.2 53.0 31.7 17.4 6.0 62.9 93

1 12-14 1 1CO. 99.5 96.9 83.7 60.3 38.4 22.6 11.8 4.2 57.4 931

1 |5-17 IC0.0 99.7 95.3 79.7 56.6 37.2 21.9 13.0 5.1 56.4 931

18-20 I100.0 100.0 98.4 90.9 73.3 52.3 S3.3 18.2 8.9 63.2 93f

I 21-23 1 1 cO.0 I00.0 99.4 94.9 84.6 64.4 45.3 27.3 14.? 68.5 931

I TOTALS I 10.0 99.9 98.5 91.4 77.2 58.2 38.7 22.3 9.9 65.2 744(

4

...0.- . _jI .k-.. '

GLCBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGL FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLY ORSFRVATIONSAIR WEATHER SERVICE/MAC

2 STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-8?MONTH: APR

C'MOTH HUR IPERCENTAGE FREQUENCY OF RLLATIVE HUMIDITY GREATER THAN IMEAN I TOTELI ILST) I ............................................................................. IRELATIvEI NUP I

I I 101 202 30% 40% 50 6it 7C% Sol 902 IHUMIDITYI Oss I; .......° i .......... ...................... ...................... ...................... .....................

AFR 1 00-02 1I1C0.0 LUOD. 99.6 97.4 88.7 69.4 49.9 27.7 11.7 70.1 90L

C3-05 1 ICO.0 310.0 100.0 99.3 90.3 74.9 55.3 32.4 12.8 72.0 90

06-08 I Ico.O ICO.C 99.8 97.0 87.0 66.0 44.9 24.7 7.2 69.5 901

C9-11 Icn.O IO.1 97.8 87.9 65.7 41.2 24.3 12.2 2.P 58.8 90

12-14 IcO.O 99.2 92.6 74.2 49.4 31.3 19.6 9.6 2.8 53.4 90(

I 15-17 IC.0 98.7 88.2 66.2 46.0 30.9 21.0 11.7 3.1 52.3 901

I 18-2 o :co.0 99.4 95.6 80.9 61.7 41.6 27,8 15.1 5.8 58.3 901

21-23 1 ICO.0 99.7 98.7 94.9 81.6 59.8 39.4 22.2 9.2 66.3 901

IOTAL5 I 110.0 99.6 96.5 87.2 71.3 51.9 35.3 19.5 6.9 62.5 720C

MAL

S2

GLLBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUmIDITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PEPIOP OF RECORD: 76-87MONTH: MAY

MOKTHg HOURS I PERCENTAGE FREQUENCY OF RELAIIVL HUMIDITY GREATER THAN I MEAN I OTL

I ILSTI I ............................................................................. IRELATTVFI NU I

f I 1t

202 302 40% 50 60% 1C2 80% 90% IHUMIOITYI OB I

MAY CO-02 I CO.O 1CO.C 99.5 97.4 91.3 77.4 55.7 31.9 12.r 72.3 93C

I C3-05 iCa.0 1C0.0 100.0 98.5 92.4 81.9 64.4 36.9 13.8 74.6 93(

.. 06-08 I 1C0.0 100.0 99.7 95.9 87.7 72.4 46.3 25.1 8.9 69.4 93L

39-11 1 1CO.0 100.0 96.7 87.5 66.8 42.5 25.9 11.3 4.5 59.3 93C

12-14 1I100.0 99.0 89.8 71.2 47.4 30.9 19.4 9.2 4.2 52.7 931

-"15-17 IC0.0 98.5 84.5 61.0 43.8 30.6 21.0 10.3 3.8 S2.? 93L

I18-z0 ICO.0 99.7 93.0 78.4 60.2 42.9 29.9 16.1 4.9 58.1 93C

21-23 IC0.0 100.0 99.6 95.7 86.2 67.7 49.D 25.8 il.4 69.1 931

ITOTALS I 2CO.0 99.7 95.4 85.7 72.0 55.7 38.R 20.8 7.8 63.3 74L

.-..

_2

GLQBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLy OBSERVATIONS


STATION NUMBER. 726225 STATION NAME: PLAITSBUR6H AFB NY PERIOD OF RECORO: 78-87

MONTH: JUN

MONTHI HOURS PERlCENTAGE FREOuENCT or RELATIVE HUMIOIIY GREATER THAN I MEAN g TOTAL

I ILSTI I............................................................................. IRELATIVEI NUP I

I I 10 202 30% 40 50% 60% 7C% 80% QO IHUMIDITYI 083 I. .. .i . ° . e .. .. . ....° ° . .. °.... ... . . . .. . ...... . o . . .. °.. ... ..... ..... . . . .. . ......o°...t. . ° .°°. . .

JLN 0-02 I |10.0 11.C 100.0 99.8 96.2 88.2 70.3 46.7 21.1 78.2 90.

03-05 I C.O ICO.0 100.C 99.8 97.3 89.9 75.3 54.0 28.4 80.5 90L

C8-08 I0.O I10.0 100.0 98.9 93.8 80.8 61.9 33.8 11.8 73.9 90.

C9-11 I O.0 100.0 99.3 93.6 82.6 62.4 35.3 16.0 4.0 bS.0 90[

12-14 ICO. I 0.0 97.0 81.8 61.6 40.9 21.9 11.0 2.6 57.4 90[

15-17 IC0.O 100.0 93.3 72.9 52.1 35.3 21.7 11.0 2.9 54.7 90

18-20 IG0.O 100.0 98.6 89.0 71.8 52.6 35.2 17.9 5.0 62.6 90

21-23 ICO.0 I00.0 100.0 98.7 93.1 81.1 62.2 36.0 13.7 74.4 90C

TOTALS IC0.0 ICO.O 98.6 91.8 81.1 66.4 48.0 28.3 11.2 65.3 720

I I I I I I- I I i .... .. .. ... ...I...I -I... ..I. .. ...I. .. ... ... ... .. .. ... .. ....... .. .P

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTArL FPLOUENCY OF OCCUPRENCE RELATIVE HUMIDITYUSAFETAC FPOM HOURLY CRSEFVATTnNS


STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: 78-87MONTH: JUL

HINTHI HOURS g PERCENTAGE FREGUENCy OF RLLATIVL HUMIDITY GREATER THAN I MEAN TTA

I 1L511 I............................................................ ................IRELATIVEI NUPrI I 101 20% 30% 40 501 601 7C1 801 9Ot IHUMII 0TYI OBS

I IJLL CO-02 caO.c 10 lO. 1 |OC.D 99.9 98.5 90.4 74 .2 48.T 14 .1 78.4 93L

1 C3-05 1 I00.0 ICO.0 100.0 100.0 99.6 95.4 82.5 55.1 18.s 81.2 931

Cb-08 I C0.0 ICO. C 100.0 99.8 97.3 88.4 65.5 34.0 7.5 75.1 93L

C9-1 1 I0.0 99.9 99.7 95.7 85.6 65.5 37.8 12.2 2.3 65.6 931

I12-14 Ic0.0 99.9 98.4 86.5 65.1 39.6 18.7 7.6 1.8 57.4 931

1 15-17 Ico.0 100.0 97.3 80.6 53.1 34.0 19.1 8.0 2.2 54.9 93(

18-20 Ico0.0 I00.0 99.7 93.5 76.0 54.5 35.3 18.3 3.2 63.5 931

21-23 1 IC0.0 1C0.0 100.0 99.9 96.5 84.4 63.9 37.1 8.9 74.9 93C

IiOTALS I I CO.0 100.c 99.4 94.5 84.0 69.0 49.6 27.6 7.4 68.9 7440

.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

p-

GLQBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUIPIDITUSAFETAC FROM HOURLY OBSERVATIONS

Alk WEATHER SERVICEIMAC

STATION NUMBERZ 726225 STATICN NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: 7m-87MONTH: AUG

' MONTHI HOURS I FERCONTAGE FREQUENCy OF RELATIVE HUMIOYT¥ GREATER THAN I MEAN a TOTAL a

ILIST) I * IELA T I WE NUr...... ...... ......... ..... .............. .............•......•...... ........ .... ....... .......... ..... ...... .....I I 1~1 201 301 901 501 631 7?t B(' 901 IHMIOIITI GAS a

ALG C0-02 I10.o ICO.0 100.0 100.0 99.7 95.8 82.c 52.s 18.6 40.7 93L

03-Os ICO. IGO .0 lo.0 I00.0 100.0 97.8 90.2 60.9 22.7 8.1 931

C6-08 10.0 100.0 100.0 100.0 99.2 94.1 77. .7 1 3.1 78.4 931

0?-II a 00.0 1C0. 99.9 98.2 91.1 72.6 46.0 18.7 2.9 69.S 93t

12-14 Ic0.0 IC0.C 99.5 92.2 72.2 48.3 26.7 9.1 1.6 60.6 913

. 15-17 IC00.0 10.0 98.9 89.0 66.0 90.5 21.8 8.9 2.7 58.9 93(

18-20 a 1C0.0 100.C 99.8 98.0 90. 71.q 98.2 2q.7 5.2 b9.9 q3f

21-23 100.0 IcO.C 100.0 100.0 99.0 93.7 76.2 93.5 12.7 78.3 93(

I OTALS IC0.0 LO.C 99.8 97.2 89.7 76.8 58.5 32.8 9.Q 72.2 744.. . . . . . . . . ...............~. o .. . .. .. .. .. ... . . . . . . ........................ . . . .. . .

-J-A

I

GLLBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLY OBSFRVATIONSAR WEATHER SERVICE/MAC


MONTH: SEP

MOIIHURS | PERCENTAGE FREQUENCY OF RELATIL HUMIDITY GRIATER THAN I MEAN I TOEAL

I ILST) I............................................................................. IRELATIVEI NUP I

I I jOs 20% 30% 40% sat 60% 7CI 80% 90% IHUMIDITYI OB I..... .... .... .... . . .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. ........ *....... ... , e * *........

SLP 00-0:' I 1CO.O 100.0 100.0 100.0 99.2 95.8 79.0 51.9 18.3 80.2 90C

CI3-05 ICo.0 1O0.C 100.0 100.0 99.8 97.8 86.6 57.9 22.3 82.1 901

16-08 Ico.0 10.1 100.00 IO.O 99.8 94.4 79.2 48.6 17.2 79.7 90

1 09-11I 1IC0.0 ICO.O 100.0 99.8 89.8 70.8 82.? 19.7 5.6 68.5 90E1 1

1 IZ- 110.0 IC.C 99.9 93.2 70.4 87.9 24.9 12.2 5.! 61.0 90[

n 1 I cc .1 99: 97.1 67.8 3.8 23 .0 13.Q 4.4 60.1 qL

18-20 IC0.O lO0.0 100.0 99.6 98.4 77.1 56.3 31.8 7.8 12.8 9u[

21-23 1 ICO.0 O0.C 100.0 100.0 98.3 91.6 7.3 45.6 15.8 78. 901

ITOTALS I 100.0 100.0 99.9 98.1 89.9 77.8 58.3 35.1 12.0 12.9 7201

... . ..... . .............. ............. ..

-NW

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGL FRQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLY ORSERVATIONSABI W AHER SERVICE/AC

STATION NUMBER: 726225 STATION NAMF: PLATTSBURGH AFR NY PERIOD OF RECORD: 7P-7MONTH: OCI

I-[LT). I................................................................................IAT H.Ot ot 200 l t HOG SOS 620 ?Ct Act Y0

0 IHUM[ITET 001

TLT IC-02 ICO.0 100O. 100.0 100.0 9A.1 90.8 74.1 0.2 18.8 78.7 93

C3-05 ICO.O 100.0 100.0 100.0 99.5 9.6 7b.3 50.6 19.2 79.7 93

C6-08 I Ico.o 10O.0 100.0 1UO. 99.5 93.1 74.5 H8.7 18.7 79.3 93[

I 9-11 I CO.0 100.0 100.0 98.7 89.9 68.7 44.5 24.6 9.7 b9.4 93L

12-19 I1C.0 ICO.0 99.9 9H.5 70.6 49.0 3U.4 16.2 4.6 62.6 93(

15-17 I IcOa 1GO.C 99.5 94.1 12.9 46.9 29.4 15.6 H.7 61.9 93[

18-20 lco.0 10l0.0 00.0 .V98.8 99.5 77.4 54.C 31.3 11.3 72.6 93

21-23 Ic0.0 IC.0 100.0 100.0 97.3 86.6 66.6 43.1 14.5 7b.7 931

.TOTALS ... C0.0 100.0 99.9 98.3 90.9 75.9 56.2 15.0 12.7 72.6 T44[

m.. .. ... . . IIl im . .

[L-LBAL CLIMATOLOGY BRANCH CUMULATIVE PERLENTAGL FREQUENCY OF OCCUPRENCE RELATIVE HUMIDITYUSAFETAC FROM HOURLY OBSFRVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: TV-t'MONTH: NOV

MOSTHI HOURS I PERCENTAGE FREQUENCY OF RLLATIvE HUMIDITY GREATER THAN I MEAN I IOTlLI

I ILSTI I............................................................................. IRELATIREI NU I

I I 1D% 202 30% 40% 50% 60% C% AO% 90% IHUMIDITIY OBS I

....................................................................................................................

I INLV CO-02 I 1l0.0 100.0 100.0 99.7 96.2 83.3 59.9 33.9 12.4 74.2 90C

r '3-DS I C0.0 100.C 100.0 100.0 97.8 66.0 63.3 39.7 18.9 75.6 90C

SC6- 0 ICO.0 1LO.0 100.0 100.0 97.9 86.1 63.1 37.3 12.4 75.3 90(

09-11 ICO.O ICO.0 100.0 99.2 90.0 69.9 42.8 23.6 6.8 68.7 90(

12-IN ICO.0 ICO. 99.6 96.3 82.2 55.2 31.3 17.8 6.4 64.8 90(

15-17 ICO.0 C.1 99.6 96.4 83.2 57.1 33.1 18.7 7.7 65.1 90[

18-20 1 Co.0 100.0 100.0 98.7 92.2 72.9 47.7 25.1 8.q 70.2 90

1 21-23 1 CO.0 I1.C 99.8 99.6 95.4 81.3 55.3 30.4 8.8 72.6 90L

I]OALS I I CD.O I0°. 99.9 98.7 91.9 74.0 49.6 28.3 9.7 70.8 120L

0.

GLjBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGL FRPEQUENrY OF OCCURRENCE RELATIVE HUMIDITY


AlE WEATHER SERVICC/MAC

STATION NUMBER: 726225 STATION NAME: PLAIISBURGH AFR NY PL-100 OF RECORD: 78-87

MONTH: DEC

MONTHI HOURS | PERCENTAOE FREQUENCy or RELATIVEHUMIDITY GREATER THAN I MEAN 0 1TA iILSTI I..............................................................................IRELATIVE NUF..

I lot 20t 305 901 505 605 7Ct 805 90: IHUMIDITTi OU$

DLC 00-02 ICO.O. L1O.G 100.0 99.1 93.3 76.3 52.5 31.9 10.9 71.7 93E

C3-05 ICO.0 100.C 99.8 99.4 94.8 79.1 51.2 31.6 10.9 72.4 931

C6-08 I 100.0 IL0.0 99.9 99.1 94.7 78.3 54.8 30.4 11.7 72.5 93C

C9-1l lcO.o 100.C 100.0 98.9 89.5 70.2 44.6 24.6 8.3 69.0 93(

12-14 ICO.0 100.0 99.9 96.2 81.4 60.9 34.4 17.6 6.8 65.3 931

15-17 I10.0 100.0 100.0 97.2 83.9 61.5 37.3 19.6 7.6 6. 93L

18-2c ICO.0 IOD.C 100.0 99.5 89.9 70.5 .4.7 25.5 9.9 69.8 92t

1 21-23 IC0.D 1(0.0 lOO.O 99.6 92.7 72.1 49.0 28.? 9.9 70.8 927

ITOTALS IC.0 100o.0 100.0 98.6 90.0 71.1 46.3 26.2 9.5 67.7 743!

0 k_

GLLBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREOUENCY OF OCCURRENCE RELATIVE HUPIoITYUSAFETAC FROM HOURLY OBSERVATIONSAl. WEATHER SERVICE/MAC

STATION NUMBER: 726225 STATION NAME: PLATTSBURGH AF8 NY PEQIOD OF RECORO: 71-87

MONTH: ALL

MOhTH7 HOURS I PERCENTAGE FREQUENCY Or RELATIVE HUIDIITY GREATER THAN I MEAN I TOYTALI ILSTJ I............................................................................. IRELAT1VEI NUM I

I I 1 201 3O% 908 502 601 7C% 80% 90" IHUMIOITYI OB$ I

JAN ALL IC0.0 1LO.E 99.6 95.9 81.2 60.1 36.6 17.9 9.7 65.1 741C

FEB I I 0o0.0 ICO.0 99.2 92.5 75.4 52.3 30.7 18.2 .0 63.2 676f

1 1MAR I IC0.0 99.9 98.5 91 . 77.2 56.Z 38.7 22.3 9.9 65.2 744t

AFR ICO.O 99. 96.5 87.2 71.3 51.9 35.3 19.5 6.9 62.5 72GC

MAY I I0.0 99.7 95.0 85.7 72.0 55.7 38.8 20.8 7.8 63.3 744C

JLN I10.0 100.0 98.6 91.8 81.1 66.4 a.Q 28.3 11.2 68.3 720[

JLL IC0.0 100.0 99.9 99.5 8.O 69.0 99.b 27.6 7.9 68.9 744

ALG 100.0 ICa .C 99.8 97.2 89.7 76.8 58.5 32.8 9.9 72.2 7494

SEP I 1c0.0 100.0 99.9 98.1 89.9 77.4 58.3 35.1 12.C 77.8 720E

OCT I 100.0 ILQ.C 99.9 98.3 90.9 759 56.2 35.0 12.7 72.6 744I ,N.V I CO.O IcO.C 99.9 98.7 91.9 74.0 99.6 28.3 9.7 70.6 7200

DOC I C0.0 IOC.C 100.0 98.6 90.0 71.1 96.3 26.2 9.s 69.7 743!

(TOTAL S C0.0 99.9 98.9 99.1 82.9 65.7 45.6 26.0 9.1 67.9 87643

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- -1

PRESSURE SUMMAMIES

STATION PRESSURE SUMRAMTES:

BAIA DERIVED FROM HOURLY OBSERVATIONS.

SUMMARIZED BY THE STANDARD 3-HOUR TIME GROUPS BY MONTH, 1oNTHLY AND ANNUALLY (ALL YLARS COMBINFDI.

PRESENTED NT THE MEANS, STANDARD DEVIATIONS AND OSSERVATION COUNT,.

';EA LEVEL PRESSURE SU.MARIES:

DATA DERIVED FROM HOURLY OBSERVATIONS.

SUMMARIZED BY THr STANDARD 3-HnUR TIME GROUPS BY MONTH, MONTHLY AND ANNUALLY IALL YEARS COMBINED).

PRESENTED ARE THE MEANS, STANDARD DEVIATIONS AN, OrSERVATION COUNI.

A

GLLBAL CLIMATOLOGY BRANCH STATION PRESSURE IN INCHES HG FROM MEANS AND STANDARD DEVIATIONS

USAFETAC HOURLY O8SERVAIIONS

AIR WEATHFR SERVICE/MAC

STATION NUMBER: 72622; STATION NAME: PLATTSBURGH AFB Ny PEPIOD OF RECORD: 78-87

;:;;.;;;o;..;; .... i; .. . .... ... . .. ; .. ... L; .... L;; .......;;.... . ...... .i .... 9;...iC....;i...

LST I I.oo.... .. ... .. .. .. .........e* . °. I l~~ . .i l e ... .... ............................................. ., -. o oo . o 0

1 EAN 29:712 29:779 29:71]1 29:664 29:672 29:639 79:b62 29:724 29:770 2976 29 784 9T0 2,2

DL I SO I .338 .72 .285 .246 .181 .168 .141 .139 .187 .266 .282 .301 .297

11OT OS 310 282 310 D 310 30 31 1D 300 310 30D 310 3652.. . . . . ... ....... ...... ..... . ........... ...... ....... ...... . ..... . .... ~. . . .... - °°.. .- °

I MEAN p 29.713 29.776 29.70; 29.657 29.669 29.638 29.662 29.72, 29,768 29.77 29.780 29.75 29.71803 I SO I .392 .273 .289 .250 .187 .177 .193 .145 .191 .268 .286 .306 .2.1

ITOT OOS 310 282 310 300 310 300 31C 310 300 310 300 310 36i2• I MEAN I 29.710 29.788 29.718 29.678 29.693"'29.659 79.689 29,738 29.785 29.797 29.786 29.757 29.712

06 I SO I .350 .277 .294 .257 .190 .182 .196 .151 .193 .268 .287 .310 .2 4107 0851 310 282 310 300 310 300 31C 310 300 310 300 310 3652

M EAN I 29.129 29.810 29.738 29.687 29.703 29.665 29.690 29.797 29.798 29.816 29.803 29.778 29.797

05 SO I .359 .283 .294 .259 .192 .186 .15 .153 .196 .273 .287 .312 .2E80T 1 310 282 310 300 310 300 31C 310 300 310 300 310 3652

I MOAN I 29.702 29.788 29.716 29.665 29.679 29.697 29.669 29.721 29.770 29.793 29,776 29,751 29.73

1 I SO I .358 .282 .291 .256 .190 .184 .149 .150 .196 .270 .283 .306 .2S6

IThT ORSI 310 282 310 3C0 310 300 310 313 300 310 300 310 3652

l Si SD I .350 .276 .281 .2 9 .185 .176 .19 .197 -194 .264 .279 .299 .249ITOT OBSI 310 282 310 300 310 300 310 310 300 310 300 310 3652

1. SD I .311 .270 .276 .292 .177 .169 .139 .138 .187 .262 .2?1 .294 .245

IT3T O aS1 310 282 310 300 3.O 300 31G 310 300 310 300 310 3652

21 I SO ..339 .272 .278 .292 .177 .164 .138 .137 .186 .268 .273 .296 -295

ITCT ORSI 310 282 310 300 310 300 3C 310 30U 310 300 309 36S1

I MEAN I 29.308 29.181 29.709 29.660 29.673 29.691 29.663 29.722 29.?66 29.787 29.780 29.756 29.720

ALL I SO I . 37 .276 .286 .250 .186 .176 .195 .196 .192 .267 .280 .303 .251

HOLRSIT OBSI 2980 2256 2980 29O 2980 2900 2980 2980 29o 298a 2900 2979 29215

0. . . . . . . . . . . . . . .........e............. ......

GLOBAL CLIMATOLOGY BRANCH SEA LEVEL PRESSURE IN MRS FRO4 MEANS AND STANDARD DEVIATIONS

USAFETAC HOURLY OBSERVATIONS

AIR WEATHER SrRVECE/MAC

STATION NUMBER;

726225 STATION NAME: PLATTSBURbH AFB NY PERIOD OF RECORD: 78-87

HOURSI STAYS I JAN FEB MAR APR MAY JUN JUL AUG Ep OCT NOV DEC ANN

I MEAN I 101 5.8 ID0A. 1 101 . 7 131 3.8 1014.0 1012.9 ID13. 7 1015.7 101 7.4 1 017.9 1017.9 1016.9 10 15.8

G1 I ST 1 11.733 9.360 9.8.B 8.502 6.321 5.905 4.869 4.857 6.433 9.193 9.678 10.482 8.573

ITOT OBSI 310 282 310 300 310 330 310 310 300 310 300 310 3652

04 I SD I 11.905 9.447 10.038 8.687 6.483 6.169 4.948 5.051 6.583 9.188 9.821 10.584 8.696ITOT OBSI 310 282 310 300 310 300 310 310 300 310 300 310 3652

I MEAN I 1016.1 1018.8 1016.3 1014.7 1015.1 1013.9 1 0 1 4.7 1016.6 1018.3 1018.8 1018.4 1017.6 Il6.607 ISf Sl 12.185 9.648 10.133 8.91L 6.611 6.318 5.068 5.234 6.663 9.243 9-853 10,687 8.812

1OT OPSI 310 2d2 310 300 310 300 310 310 300 310 300 310 3652

I MEAN I 1016.6 1019.2 1016.5 1014.1 1015.0 1013.7 1014.5 1016.5 1018.2 1019.0 1018.7 1018.2 1016.7

1 I So I 12.357 9.812 10.130 8.905 6.633 6.425 5.154 5-258 6.738 9.399 9.821 10.772 8.916TOT OBSI 310 282 310 300 310 300 310 310 300 310 300 310 3652

I MEAN I 1015.0 10317.9 1015.4 1013.7 1014.0 1012.8 1013.5 1015.6 101 7.0 1317.8 1017.4 1016.6 1015.5

13 1 S0 I 12.296 9.692 9.906 8.705 6.542 6.276 5.130 5.131 6.721 9.217 9.604 10.530 8.751 0I101 OBSI 310 282 310 300 310 300 310 310 300 310 300 310 3652

16 I so I 11.948 9.420 9.617 8.493 6.309 6.027 4.959 4.990 6.595 9.022 9.340 10.178 8.550

I1OT OBS 310 282 310 300 310 300 310 310 300 310 3O 310 3652

I MEAN I 1015.8 1018.2 1015.3 1013.3 1013.4 1012.3 1012.9 1015.2 1016.7 1018.0 1017.9 1017.4 1015.5

19 I So I 11.769 9.324 9.490 8.245 6.123 5.802 4.779 4.721 6.434 9.046 9.320 10.190 8.4721 OT OBSI 310 282 310 300 310 300 310 310 3o0 313 300 309 3651.......... .. . .. .................... .. .......................... . ......I MEAN 1 1015.9 1018.3 1015.7 1013.8 1014.1 1013.1 1013.6 1015.9 10171.4 1018.3 1017.9 1017.4 1015.9

2c I 50 11.719 9.360 9.596 8.334 6.171 5.731 4.795 4.712 6.417 9.277 9-385 10.259 8.469 00 ,BS 3 a10 282 310 300 310 300 310 310 300 310 300 309 3651

I MEAN I 1015.7 1018.2 1015.6''1013.8'1014.1 1013.0" ,013.7 1015.8 1017.3 1018.1"'1017.9 1017.3; 1015.9 ... 0ALL SD 5 11.985 9.508 9.852 8.610 6.424 6.103 4.996 5.011 b.597 9.199 9.601 10.458 8.671

HOURSITOT 0053 2480 2256 2480 2400 2480 2400 2480 2480 7400 2480 2400 2478 29214. . .. . .. . .. . .. . .. .. . .. . .. . .. .. ... e$.. .. ... .. ... . ... . . . .. . . . .. . . ......e .. . .. .. ..

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