i ~i a lifo a li1/j · staton staion o amelatitude onsuinary i1.o6itude1 fielo lev (ft) i call sin...

ADA7 1 qf /,EI I ~I A LIFO A LI1/j 1

UNCLSSIFuED YM~vaa * ~ ~ !~h~T L ;/

11 L4-0 5 281

1161I IIIII. 1 111. ' jji 6

I5JL l l'

tp

AWS TECHNICAL LIBRARY

FL 4414

Li5( > 7 )2 4;/(- U r 71 -7 C S SCO fT AF R IL 62225 80 O CT

OPERATING LOCATION -A

USAFETACAir Weather Service (MAC)

"SFETAC LIMITED SURFACE OBSERVATIONS"CLIMATIC SUMMARY "LISOCS"

FT ORD/FRITZSCHE AAF CA MSC #724916N 36 41 W 121 46 ELEV 151 FT KOAR

PARTS I - 5 HOUR3 SUMMARIZED: 0600 - 2300 LST

* PERIOD OF RECORD:

HOURLY OBSERVATIONS: JUL 76 - JUN 86SUMMARY OF DAY DATA: NONE

•her .TIME CONVERSION GMT TO LST -8

UII Iu".Approved for public release; DFI-. cTEDistribution Unlimited." FEDERAL BUILDING NOV 1 2 186

ASHEVILLE, N.C. 28801 - 2723

B

8

86111

REVIEW AND APPROVAL STATMENT

hUSAFETAC/DS-86/056 has been reviewed and is approved for publication.

FOR THE COMMANDER

W6ALTER S. BUGScientific and Technical Information Officer

(STINFO)

REPORT DOCUMENTATION PACE

Ia. Report Security Classification: UNCLASSIFIED

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

4. Performing Organization Report Number: USAFETAC/DS-86/056

5. Monitoring Organization Report Number: USAFETAC/DS-86/056

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

7a. Name of Monitoring Organization: USAFETAC

7b. Address: Scott AFB, IL 62225-5458

11 Title: (LISOCS) FT ORD/FRITZSCHE AAF CA

12 Personal Author(s):

13a Type of Report: Data Summary13b Time Covered: Jul 76-Jun 86

14 Date of Report: Oct 86

15 Page Count: 312

16 Supplementary Notation:

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

18 Subject Terms: *climatology *weather meteorological conditions windsprecipitation barometric pressure sky cover temperature relative humiditypaychrometric data visibility ceiling Limited Surface Observations ClimaticSummary(LISOCS); Ft Ord CA; Fritzsche AAF CA; California; USCA 724916.

19 Abstract: 'A statistical data summary of surface weather observation climatologyfor: Ft Ord/Fritzsche AAF CA. This summary is similar to the Revised Uniform Summary ofSurface Weather Observations (RUSSWO), but is based on data collected from limited-dutyweather observing stations; i.e., those that take weather observations less than 24 hoursa day, 7 days a week. The summary is in five parts: PART 1, Weather Conditions andAtmospheric Phenomena; PART 2, Surface Winds; PART 3,Ceiling and Visibility; PART 4,Psychrometric Summaries; and PART 5, Pressure Summaries. Note that PART 2, Precipitation,is omitted. See USAFETAC/TN-83-O01 (AD132186), An Aid For Using The Revised UniformSummary of Surface Weather Observations (RUSSWO), for complete descriptions of contentsand instructions for use.,

20 Distribution/Availability of Abstract: Same as report.

21 Abstract Security Classification: UNCLASSIFIED.

22a Name of Responsible Individual: Marianne L. Cavanaugh22b Telephone: (618)256-2625.22c Office Symbol: USAFETAC/LDD

0 PM 1473 UNcLASSIPIU

The number that identifies the station in

this sumary is an AwS Master Station Cata-

log number. This number is comprised of the

w4o number with the addition of a muffix zero, or,

in cases where there Is no designated wmO number,

a 5-diqit number created in agreement with WMO rules,

plus a sixth qualifying digit. These numbers (also

referred to as DATSAV or USAFETAC numbers) uniquely

identify each of mre than 15,000 reporting stations

around the world. This is the provenance of the

number (e.g., MSC 999999) which will appear on

future OL-A standard products.

A-

OPERATING LOCATION "A" LIMITED SURFACE OBSERVATIONS

USAFETAC, ASHEVILLE NC CLIMATIC SUMMARIES(LISOCS)

DEFINITION, A RUSSWO-like set of summaries of hourly observations for the station's normal operating hours.

Hourly ObservationsiThose record or record-special observations recorded at established hourly intervals.

Gen-ral Comments:

1. The hourly data are screened to exclude extraneous or occasional hours outside the normal observing houri

2. A brief description preceeds each summary.

3. Summaries containing "TOTALS" and "ALL HOURS" are only from the hours summarized. These values drerepresentative only for the operating hours.

4. The monthly and annual "ALL HOURS" summaries are not presented because they are not representative, dnd

would result in meaningless or biased values.

5. There are no "Sky Cover" nor "Sea Level Pressure" summaries for METAR stations.

Table of Contentst AWS Form 2 "Station History"Part 1: Weather ConditionsPart 2: Surface WindsPart 3: Ceiling Versus Visibility; Sky CoverPart 4: Daily High, Low, Mean Temperatures; Max High and Min Low Temperaturest

Psychrometric Tables; Mean and Standard Deviatidn of Temperaturest Relative HumidibtPart 5: Station Pressuret Sea Level Pressure

Standard 3-Hour Groups: All summaries having diurnal variations are summarized in 3-hour periods correspondingthe following sets of hourly observations and limited to normal observation reportinghours (LST):

0000-0200 1200-14000300-0500 1500-1700

0600-0800 1800-2000

0900-1100 2100-2300

Note that the first and last hour groups may or may not contain all three hours. See hours summarized on

front cover to determine which hours are included in these two hour groups.

STATON O ONSUINARY STAION AMELATITUDE I1.O6ITUDE1 FIELO LEV (Ft) I CALL SIN NO UMU

93217 FORT ORD CALIF/FRITZSCHE AAF N 36 41 W 121 46 144 OAR

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

OF GEOGRAPHICAL LOCATION iNANE OF LATITUDE LONGITUOE PER

LOCATION STATION FROM TO FIELD (F I T. ABO. DAY

1 Fort Ord AAF, Calif AAF Apr 60 May 61 N 36 41 W 121 46 144 Ft 144 ft >

2 Fore! Ord/Fritzsche AAF, Calif AAF Jun 61 Aug 61 Same Same Same Same3 Same AAF Sep 61 Jun 62 Same Same Same 152 ft 21.

4 Same AAF Jul 62 Oct 62 Same Same Same Same 195 Same AAF Nov 62 Nov 62 Same Same Same 119 ft 10

6 Same AAF Dec 62 Mar 65 Same Same Same Same 2L

7 Same AAF Apr 65 May 66 Same Same Same Same 198 Samc AAF Jun 66 Aug 68 Same Same Same Same9 Same AAF Sep 68 Jan 69 Same Same Same 140 ft 17

'10 Same AAF Feb 69 Aug 69 Same Same Same Same 2L11 Same AAF Sep 69 Dec 71 Same Same Same Same ip

12 Same AAIT Jan 72 Dec 78 Same Same Same Same i6

13 Same AAF Jan 79 Jun 84 Same Same Same Same 17

14 Same AAF Feb 84 Jun 86 Same Same Same Same 24

•Clcsed holidays and weekends.

NUMBER DATE SURrACE WIND EQU!PNENT INFORMATIONor OF TY r T ABOVE RENARIS. ADDITIONAL EOUIPMENT. O REASON FOR CHANCY

LOCATION CBAMI:E LOCATION TRANSNITTER RECORDER CROUND

1 Apr 60 Located 750 ft NW from weather stn. AN/GMQ-l N/A 15 ft2 Jun 61 Located 300 ft NE from weather stn Same am', Same3 Aug 61 Located 2/10 mile NE of weather stn AN/GMQ-]. 3am' Same4 Sep 61 Located 300 ft SW of approach end Same Rt)- 12 ft

of Rnwy 30.5 Nov 61 Located near approach end of Rnwy. Same '< Same6 Mar 66 Located 520 ft SW of centerline, Same Same Same

650 ft SW end of Rnwy 29.7 Mar 68 Located 520 ft from centerline, Same Same Same

950 ft from approach end Rnwy 29.8 Dec 18 Same Same Sa.se Same

CONTIROED ON REVERSE SIDE

OPERATING LOCATION "A"

USAFETAC, ASHEVILLE NC WEATHER CONDITIONS

PART 1

This summary is a percentage frequency occurrence of various atmospheric phenomena and obstructions tovision, derived from hourly observations, and Is presented by month by the available 3-hour groups.

Thunderstorms--All reported occurrences of thunderstorm, tornado, and waterspout.

Rain and/or drizzle--All liquid precipitation, falling to the ground, not freezing.

Freezing rain and/or freezing drizzle (glaze)--Precipitation falling in liquid form, but freezing on con-tact with an unheated surface.

Snow and/or sleet (ice pellets)--Included are snow, snow pellets, sleet, snow grains, ice crystals, and icepellets. (Snow pellets also known as soft hail.)

Hail--Occurrences of hail.

Percentage of observations with precipitation--Included in this category are the observations when one or

more of the above phenomena occurred. Since more than one type of precipitation may be reported in the sameobservation, the sum of the individual categories may exceed the percentage of the observations with precip.

Fog--Included are fog# ice fog, and ground fog.

Smoke and/or haze--Occurrences of smoke, haze, or combinations of smoke and haze are included.

Blowing snow--Occurrences of blowing snow.

Dust and/or sand--Included are blowing dust, blowing sand, and dust.

Blowing spray--This item if reported, is not shown in a separate category on this form but is included inthe computation Percentage of Observations with Obstructions to Vision, below.

Percentage of observations with obstructions to vision--Included in this category are the observations whenone or more of the above obstructions to vision occurred. Since more than one type of obstruction may bereported in the same observation, the sums of the individual categories nay exceed the percentage totalcolumns. Also, although precipitation may reduce visibility, it is not considered an obstruction tovision for purposes of this summary; therefore, the percentage total of obstructions to vision need notreflect the total observations with reduced visibility.

Continued on Reverse

SL" 4L CLIMATCLOGY ;:5ANCHJ'IAl- TA CA_ - ATW7R SFRI'I-,_,AC WEATHER CONDITIONS

7-.49- FT ORD/FUITZSCHE AAF CA 77-86 JA T

STATION STATION NAME YEARS MONTH

PLRCENTAGE FPEDULNCY OF OCCURRENCE CF WEATHLR

CONDITIONS FROM HOUPLY OBSERVATIONS

RAIN FREEZING SNOW % OF SMOKE I DUST % OF OBS TOTALMONTH HOURS AID OR RAIN & OR AND OR HAIL 0S WITH FOG AND OR SNOW 1 AND OR WITH OBST NO OF

(L ST, STORMS DRIZZLE DRIZZLE SLEET I PRECIP. HAZE SAND TO VISION , GE

DIJA r i,

U i 14.0 I 10

6Q' 6.61 8.6 [ 9.2 2.E 11.2 7 '4

,, 8.8 .3 8. i 6.3 ' .G 7. 'T ,

15-1 1 .1 9.9[ .i 1 9.9 5.3 3.8 i n3

9.7- 9.7 4.9 3.b 7 54

1-235 .2 9.2 6.51 1., 7.3 2

II !__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

TOTALS I .4 C 9.4 7.7 2.b 9.4 423

USAFETAC Mv 0.10-5(1. A),mr us f ,mosOF mS.Fom . uo xfti

GLOBAL CLIMATOLOE' '?RANCHi l' A FET AC

A 'U,"-ATF:-R SERVICL/MAC WEATHER CONDITIONS

7 4 915 FT Dc<0/VIT7SCHr4 AAF CA 77-P6 FE-


PLRCENTAGE FREQUENCY OF OCCURRENCE OF WEATHERCONDITIONS FROM HOURLY OBSERVATIONS

H ', RAIN REEZINGI SNOW ! OF SMOKE I NG DuST % OF OBS TOTALMONT HOURS THUNDER AND OR IRAIN & OR AND'OR HAIL OBS WITH FOG AND, OR BLOWING AND OR WITH OBST NO OF

DRIZZLE DRIZZLE SLEET PRECIP. j HAZE I SAND TO VISION OBS

FI

3 -'

7. .72.9 2.0 72.i 7T?

3 3. 3314.- 737I -

1!.... 12.O i j.c 5.61 3.9 w. 73Q

9.2 9 .2 6 .1 ' 4.- ' . , £

1 -X .4 v.2 9.2 7.7 3.1 , -

.4 . 6 4i 9.- 1.4 - *6 !V 9

I -

TOTALS .1 i .- I 9.i 1.2I . ,I .3 3730)

USAFETAC 0-I0' 5(0 A ), I No t OF THIS FOW I O&SoLI

,L ,AL CLIMATOLOGY ?tAACH, .A':--T ACA,,s ATH S' VAIsv /MCc WEATHER CONDITIONS

179. FT OkD/PT1TZSCHE AAF CA 77-86 MAi


PLRCENTA67 FREQULNCY CF OCCURRENCE OF WEATHERCONDITIONS FROM HOJRLY OBSERVATIONS

HOURS THUNDER RAIN FREEZING SHOW i , OF SMOKE B DUST % OF OBS TOTALMONTH - AND OR RAIN & OR, AND/OR, HAIL BS WITH FOG AND OR BLOWING WITI~~~~~~ RSNOW DOR HOTNOO

L DRIZZLE DRIZZLE SLEET PRECIP. HAZE SAND TO VISION OBS

t t

6-1 1.7 z 1 2 1.71 17.91 1.4,

'4: ,7

9 .r 9 3 9.,7 5 .9 'E. -, ,. '13

I q- - ,5 7.". 6_ ._ 7.- 76-

11.7 9.2 i 3. '

_ -ZS; .3, 11.71 11.7 1 1j.S 1.2 I . 57.?

TOTALS * -;* I , . "1

USAFETAC Zu"6,4 0.,10-5(OL Al ,"IDAoUS nNS O l rS FOWAN Ou oS or

GLOIAL CLIMATOLOGY -3kANCHS- AF-TAC

A.:- ,EATHFK SERVIC/IMAC WEATHER CONDITIONS

7'49'.5 Ff OkP/F.ITZSCHr AAF CA 77-86 APP


P---CENTAGE FREQUENCY O. OCCURRENCE OF WEATHER

CONOTTIONS FROP. HOURLY OBSERVATIONS

HOURS THUNDER- RAIN FREEZING SNOW % OF SMOKE DUST % OF 08' TOTAL

MONTH LT STORMS AND OR 'RAIN & OR AND/OR j HAIL OBS WITH FOG AND OR SNOW AND OR WITH OBST NOSOF

(L DRIZZLE DRIZZLE SLEET IPRECP. HAZE SAND TO vISION ORS

EP SLEET___ __ PRCP IOVSO

4.2 4.2 22.9! 3.5! 24. z1I7 -

- 4.8 I 4.6 11.3 3.4 13.1 769

4.7 4 4.7 4.6 2.o 6.0 789

i- 4.8 4.6 4.4 2.5 c..Z 734

- -, .3 3.3 6.5 i.1 8. -73

1-2-) 3.C 5.7 .u 5.9 527

TOTALS q . 1 .1[ 9.2 . 0.7 4733USAF.1 I - LL I

[2USAFETAC JUL ,a 0-10-5(01. A), PlEVIou.s EoD1O4 )S O I 0S50ET!

Sl-Jr.AL CLIMATr'LOEY T;.AICH

Ac'!TACA...AT-R SF VI CALC WEATHER CONDITIONS

7 -19, ,t O.r/ TT"SCH' A AF CA 77-16 AYSTAT, 5N STATION NAME 'EARS MO6NTH -

-LCENTA6L FrEOuENCY CF OCCURRENCE OF ,4EA1LiCONDITIONS FCoH HOURLY OPSERVATIU;S

HORS TUNDER RAIN FREEZING SNOW ' OF SMOKE DUST % OF OBS TOTALI T S T MNSTORMS AND OR 'RAIN & OR AND OR HAIL OBS WITH FOG AND OR SNOW AND OR WiTH cSST NO OF

DRIZZLE DRIZZLE SLEET PRECIP. HAZE SAND TO VISION GEL

I I

'3-R

... .,.6 .6 9, .4 ! .5 ":

i.1 i .

i -' . . 4.9 1 1.3 5.7 c

- . 1.7 1.7 9.1 1.7 9., "

USA- -",C7 2.7 0 .'O7 .bO O .7 1 iiOO

TO AS1.- 1 . 0 '

LISAETA 0 1 5(L A) ft ous oi s of-s otm n osot

GL'-AL CLIMATOLOGY >iANCH1 tj '-AFETACA FEAThR SERVI C/,AC WEATHER CONDITIONS

,'491A Fl '.J/F' 11 SCH AAF CA 77-86 JUllSTATION STATION NAME YEARS MONTH

FLP.RCENTAGL FREQUENCY OF OCCURRENCE OF WEATHER

CONDITIONS FROM HOURLY OBSERVATIONS

RAIN JFREEZING SNOW % OF SMOKE DUST % OF OBS TOTALMONTH HOURS THUNDER A OR RAIN& OR AND OR HAIL OBS WITH FOG AND OR sloNw AND OR WITH OBST NO OF! DRIZZLE DRIZZLE SLEET PRECIP HAZE SAND TO VISION OBS

rIJN'/ _ r-:: -;

7 .7 41.2 3 . 41.1 3'

- 9l .. 9 14.4 4.7 b.L 7c

1.2 , 1. 3.2 1. .7 7b "

1"-~ 1 .6I 1.6 . 2,, .. Uc6

.71___ _ __- 1.7 1 .7 7

i]E -3.2 14.8 14

II

TOTALS ) , 3.2. 3.2 16.21 1. i 15. 3 9

USAFETAC JU'1161 0" 10.51 0L A)}, PitmIOUSe mo~fmle FTIS FORMAtlEOSOmf T

bLCrPAL CLIMATOLOGY R AICH

~T ATFC- SEi VIC,/I AC WEATHER CONDITIONS

44;f MF rG/'.IT2'SCHE AAF CA 76-85 JUL


PLVCENTArL FREQUENCY UF OCCURRENCE OF WEATHERCONDITIONS FROM HOURLY OBSERVATIONS

RAINS FREEZING SNOW % Of SMOKE DUST % OF OBS TOTAL

i NDS- A!'. RAN&iR AN OR I L Ib BLOWINGMONTH HUSTHUNDR- RRI RAN/R HI R WITH FOG AND OR SNWAND OR WITH OBST NO OFI . i DRIZZLE DRIZZLE SLEET PRECIP. HAZE SNOWO IIO Os

c .31 7.2 I 7.21 6 2.6 4.L 64.3. 748

1 2.1j 2.11 29.1 6.1 3 1. L 5

12-1 .2 1. 1 .1 4.8 2.6 6.2 L 7

.4 .4' 11.6 1.7 22.L 580

27.2 1.3 27.t r36

2- 2.L I 34.7 34.7 352

TOTALS .1.1 2.1____ 28.3 i:. 6 29.4 3037

USAFETAC 'L 0- 105(k A),"AU P IME - OFl FSO W QUOLEIDM TE

GLI3AL CLIMATOLO6Y -PANCH:J AFETACA i EAIHER S;VTC-/MAC WEATHER CONDITIONS

72,49.j FT ORO/FRITZSCHE AAF CA 76-85 AUCS TA TION STATION NAME YEARS MONTH

PLRCENTAGL FPEQULNCY OF OCCURRENCE OF WEATHERCONDITIONS FROM HOURLY OBSERVATIONS

ONH HOURS THUND R AN FEZG SNOW OF SMOKE SLW 'DUST % OF OBS TOTAL

HUS TUNDER- II LO ING AND OR WITH OBST NO OF

MONTH (LS T.) STORMS AND OR RAIN & !OR AND/OR HAIL OSs WITH FOG AND. OR BOWI SNOWDRIZZLE DRIZZLE SLEET PRECIP. HAZE SAND TO VISION Os

I ' {

--!' - f -i

-- ( " .1 7.71 7.7 52.8 2.71 54.1 7b21 - 1. 1 . 2 1 Z 3 1 1 .3 2 1 . 4 "; 7 2 2 . b 4 ')

7-',., 5 .6 .6 5..3 1., 7. P4-

I L .- ... ..

° - '"- 3.3 18.7 1.. 115.7 -,7L

2.71 2.7; 1a.1 1I.1 11

1,- -*---i-

TOTALS 1 2 .9 2.9 1.6 21.2 41-36

USAFETAC ,y 0-10,5(01 A), UIviOUs EDmO..$ OU tils FO4m. AIROsOLEr

GLOBAL CLIMATOLOGY BRANCH,JAFFTACAT, "ATHER SERVICL/MAC WEATHER CONDITIONS

724916 FT ORD/FRITZSCHE AAF CA 76-85 SEP


P.RCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER

CONDITIONS FROM HOURLY OBSERVATIONS

MONTH HOURS THUNDER R FREEZING O BLOWINGDUST

(LST) STORMS AND OR RAIN & /OR AND/OR HAIL ORS WITH FOG AND/OR SNOW AND OR WITH OBST NO OFDRIZZLE DRIZZLE SLEET PRECI. HAZ: , SAND TO VISION ORS

' _ _SEP O7 __F_ ___ ___

4.4 4.4 41.1 2.9 42.71 722

- _ 49-AI .4 Z.8 2.8 20.6 4.8 F 22.9 777

-.2 7.1 Z.3 7.9 777

15o-1 7 1 I .2 1 1.2 7.9 2.2 .& (,67__-_ _ I _.5_ 2.5 16.2 ., 16.4

I-2 .6F - 16 . -

L _ _ _ 5 .6 i _ 5 .6 1 9 .3 _ _ _ 1 9.- 3 3 7

TOTALS. _0 ___ 3.1__ 18.7 H.1 19.7 3798

__.__ _____ _____ ____ 18.7 _____ _____ ________

USAFETAC .v -10-501 A), PImN1fflso .s'WMoU~otTf

G!_,0EAL CLIMATOL06Y "PANCH

A 1 U F TAC WEATHER CONDITIONSA -::oAThE, S iVI:EJMAC

7'4'1 Fl ORD/FIFTZSCHE AAF CA 76-85 OCT


PLPCENTAGE FREQULNCY CF OCCURRENCE OF WEATHERCCN31TIONS FROM HOURLY OBSERVATIONS

HOURS THUNDER RAIN 1 FREEZING SNOW % OF SMOKE S LO DUST % OF OBS TOTALMONTH ,OUS TOR AND OR RAIN & OR1 AND/OR HAIL OBS WITH FOG AND OR I SNOW AND OR WITH OBST NO OF

LST STO DRIZZLE DR IZZLE SLEET PRECIP. HAZE SAND TO VISION' ObS

C T

. 2.7 4C.3 7 4

1- 3.61 3. 1 L7.2.0 28.7 Ric

2. 1 5.

I -: i..4, 1 ' 1.4 i 11.9, .2 , l .5 R13

... 9i 1 .° 12.8 4.3 13. 69

.61 i . 16.6 1.. • .5 527

i 3.9 19.6 19.6 362

SII -

I iI

- -- I ' I

TOTALS 2.1 2.1 21.1 3.y I 23.C 3949

USAFETAC u 0.10-5(OL A),twOus fmOm Of' mS FO AnR OGSONIR

GLO3AL CLIMATOLOGv 'RANCHc' AFT-TAC WEATHER CONDITIONSAx: .'FATHER SERVICEJ/MAC

7249 S FT OklC/FPI<TZSCHE AAF CA 76-85 NGV


PEIRCENTAGE FREQUENCY OF OCCURRENCE OF WEATHERCCNDITIONS FROM HOURLY OBSERVATIONS

RAIN FREEZING SNOW % OF SMOKE OUST %OF OBS TOTALMNH HOURS THUNDER- SNOWN US

MONTH LST STORMS AND OR TRAIN & OR AND;OR HAIL OSS WITH FOG AND'OR BLOWING AND.OR WITH OBST. NO OFDRIZZLE DRIZZLE SLEET PRECIP. " HAZE SAND TO VISION O8S

6- t.4.7 _. 21.6 2. 1

, , .1I 5.1 14.9 5.8 18.C 74n

i 5-1i7.1 7.1 17.U, S.6 9.7 1

- U.*4 -- _____ ___I6.41 9 1*. JI* I I

. 1-7 .4 1.6 7.b 10.3 1. 1 11.4 4 5 ,3

TOTALS 11.7 - 13. 3 7 J

USAFETAC X 0.10-5(OL A)., Flrl.OU$ '~mf.5d9O$9SPC. . SOLTE

GL'OHAL CLIMATOLOGY 3..lANCHAF ,AC WEATHER CONDITIONS

AH d WEAThER SERVICL/MAC

7--49 f Fl ORD/FRITZSCHr AAF CA 76-85 DEC


P-_RCENTAGE FREQUENCY OF OCCURRENCE OF WEATHERCONOITIONS FROM HOURLY OBSERVATIONS

HOR THNE OF FREEIOWING1

O RAIN Z SNOW OBS WIT SMOKE DI DUST % OF OBS TOTALMN H AND OR :RAIN & OR AND OR HAIL OeS "I". FOG AND, OR S AND OR WITH OWST NO OFM DRIZZLE DRIZZLE SLEET PRECIP. HAZE S SAND TO VISION Os.O

A- t.2 1 6.2 1 17.9 2.1 ' 18.5 t3?

.- 1, 6 ~ ,4 . 1 . .1 13.9 7,9_

.3! u.4 6.4, 4.8 2.9i .4 7.1 74?

--5 .21 4.5'i 3.4 .5 7.1 657

- 2.6 2.6 6.6 .8 . 7

. 7 y

2 i-7?- 1.2 1. 9.0] .3 .9 9.9 333

KOTALS .11 4.71.j 4.7 9 .Q 2.3; 4 1-1.7 3799

C USAFETAC 0-10OS(OL A), ffroc'us EDON ,OFOEMSp K" m osoRtfn

6LORAL CLIMATOLOGY cRANCHd ,A"- T ACA, . ATH SFtI,'LMC WEATHER CONDITIONSAl.AHE SILRA

7249:6 FT O P/r,lTZSCHL AAF CA 76-86 ALL

' EDCENTAGL FRLQUFNCY OF OCCURRENCE OF WEATHERCINOITIONS Fr OM HOURLY OBSERVATIONS

RAIN FREEZING SNOW I OF SMOKE DUST % OF OBS TOTALHOURS THUNDERAND OR WING AND OR WITH OBST NO OFMONTH L S T STORMS AND OR RAIN & OR AND OR HAIL ODS WITH FOG A O SNOW

DRIZZLE DRIZZLE SLEET PRECIP. HAZE SAND TO VISION ORS

JAN ALL . . ,,4 .. 9.4 7.7 5.b 9.4 4 2'2

iiz9.1 1i.4 3.1 12.3 3739

-i; 1 9 . 9.5 ]1oC19I.L 4716

A zl '. 4.1 r 4.1 9.2 2.5 12.7 4-33

I12.b 3i4C

.2 ~5 15.2 L.1 3 . 7 322

J IL .1 -. I 2.1 2F,3 9.6 94 3q37

JL .2 2.9 2.9 2'-6.6 1.L 21.. 4136

I,.- . 2.1) 3. ' le.7 19.7 3798

"N f . 6. 11. 7 3., 13. 37-2

u C 4.7 4.7 9.0 2.3 .4 L,.7 3

TOTALS . 4.9 . 4.91 14.51 2.5 . 15.. 46799

USAFETAC I 6 0-10-SNOL A), "m"OuS fwIti O MsK" Aim 0mSoItTe

I OPERATING LOCATION "A"

USAFETAC, ASHEVILLE NC SURFACE WINDS

PART 2

Presented in this part are various tabulations of surface winds as followst

Bivariate percentage frequency tabulations: Derived from hourly observations, these tabulations are akpercentage frequency of wind directions to 16 compass points and calm vs 11 wind speed (knots) increments

in Beaufort classifications. Percentages are shown for both directions and speed, and in addition themean wind speed is given for each direction.

A separate category is provided on the form for variable winds, which are reported in some data sources.In these data where light and variable winds are reported with no directions but with speeds given, thespeeds will be summarized in the appropriate groups opposite the column headed VRBL.

These tables are prepared for all years combined, by month by available 3-hour groups.

A percentage frequency of ".0" in these tabLs represents one or more occurrences amounting to lessthan ".05" percent.

, i

NOTE, 1. For METAR stations beginning Jan 68 and Synoptic reporting stations, only the highest order of at-mospheric phenomena was reported, recorded on the AWS Forms 10a, and transmitted longline. Beginning Jan 70,METAR stations recorded all atmospheric phenomena on the AWS Form 10a, but transmitted longline only thehighest order. For example, if the observation consisted of rain, fog and smoke, only the rain was trans-mitted longline. Our data base, as a result, contains only rain for that observation. Because of thesereporting procedures the summaries for METAR and Synoptic reporting stations are highly questionable in thehourly summaries. This primarily effects the obstruction to vision columns, but may also have minor effectson the precipitation columns.

2. When the value of ".0" appears in the summaries, it represent one or more occurrences amountingto less than .05 percent.

LC.zAL CL P'ATOLOGY BRANCH PELCENTAGE FREQUENCY OF O(.C.,RREhCE OF SURFACE WIND DIRECTION VERSUS WINL 1 SLLE.- S0 ETA C FROM HOUHLI OBSERVATIONSAl; LFATHER SERVICE/MAC

5T11 IN NLIRER: 724916 STAfIOK. tPME: FT ORO/fFRlTZSCHE AAF CA PEPIOD OF kL(ORD: 77-8V.MONTH: JAN HOURS ILSTI: !.0,-OdCO

I wINU SPEED IN KNOTSLIRECTICI. 1 1-1 4-6 1-IC 11-16 17-21 i2-27 28-33 34-4' 41-47 48-55 GE 5t ILIA. PEANIGE.zEFS) I I. .1I'..

N . .5 .2 1 ~ 4

I 9 1.3 .2 .3 .

E. I 1. 1.6 .6 3

I 3 2. 12.7 5.8 2 7 2.1 4 .9

st I .1 4.7 1.3 1.6 .6 .I 7.-,

IS .6 . I 3

S i 1!.0 .5 .31 -

SS .3 .2 .2

Si. I 11 3 .6 .3 .2 2 .

65. 3 1 .2 .2 .0 t.5

.556 .5 .2 .2 7

I ! .2 .7

',N. I *3 .3

lOIALi 24.7 S.C c 4.8 . . . 4.

ICT.L N3.MfE0 OF 03SERVATIONS: ".C

GLCLAL CLIPATOLOGY BRANCH PEFLENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WI2NO DIREETXC. VERSUS Wlhi 55 EL,$A F TAC FROP HOURLY ObSERVATIONSA19 EFA7HEP SERVICE/MAC

-AATION NIPRER: 724916 STATION PME: FT ORO/FR17ZSCHE AAF CA PEPIOU OF RECORD: 77-86MONTH: .JAI, HOURSILSY): 3~2IL

I wjIND SPEED IN KNOTSbIlLECT Nr 1-3 4-6 A-lC 11-16 17-21 22-27 28-33 34-40 41-47 46-55 GE 56 14. AL MEANLoEGIEF:2 1 4 1

4 . .1 Z.3

t, 1.s .4 . 2.1

FIF j 1. 3 1.5 4* .3 4.5

I 7. 1 1c.7 50.4 1 .1 z 3 5.8

f.F5.7 11.3 9.1 1.9 .1 .1 Z13.2 b.3

SF 2.5 3.9 2.5 2.1 .5 11.6 3. 3

I T .5 .3 1 .0 5. 3

S I.8 .1 .9 ~ .6

56 .3 .6 61.5 ,7

556 I.3 .4 .3 .11. 1c.3

.9 1.4 1. 13.4 5.p

VN .5 .4 .3 . 5"

I .4 3.5 3.6

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

CALM I ///I'I/IIJ~j//j/j//j////////j/////j/j//~//, 11.7 i/l

TOTALS 21.8 3Z.? 26.6 6.2 .9 .1 100.0 5.8

TOTAL NUMFLR OF OBSERVATIONS: 794

F

GLO AL CLIMATOLOGY BRANCH PEPLENTAGE FPE.UENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

USAFETAC FROM HOURLY OBSERVA71ONS

AIR WEATHEk SERWICE/MAC

STATION NUMBRLP: 724916 STATION NAME: FT OPD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURS(LST): 12:D-140D

WIND SPEED IN KNOTS

UIPECTITN I 1-3 4-6 7-10 11-1b 17-21 2z-Z7 28-33 34-4G 41-47 48-55 GE 56 ICTAL MEAI.I uF6EfS) I Nu

o1. 1.6 2.6 3.9

JN f 1.3 .8 .3 2.3 3.7

N! 2.1 3.1 1.3 .1 6.7 4.5

TN 3.0 3.6 1.4 8.1 4.2

L 2.9 8.9 2.8 .5 IS.1 5.2

ESE 1.8 5.3 4.4 1.3 .3 .1 13.1 7.0

SE .9 .8 2.8 .9 .2 7.8

SSF .8 .8 .1 1.6 3.3

I .1 .3 .3 .6 9.6

SSW .4 .8 1.3 2.1 9.7

S6.3 .3 .5 .8 .3 2.i 1,.3

WSW 1.0 .5 1.C .4 .3 3.1 7.3

1.5 3,3 2.9 1.17 .1 8.9 t.7

WNW 2.0 3.4 3.1 .3 9.9 '.9

N9 2.3 3.5 1.4 .4 7.5 5.4

NNw 1,E 1.4 2.9 3.

9AKTA9LE

CALM I ///II//////I///////I/II////A///'///I/I ///I /j/I /i/ 9.4 //Ill

TOTAL 1 22.1 37.7 22.9 6.8 .9 .1 100.0 S.3

TOTAL NUMRLR OF OPSERVATIONS: 79S

&jOrAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDJSAFETAC FROM HOURLY OBSERVATIONS0A3 .EATHER SERVICE/MAC

STATION NU.LR: 724916 STATION NAME: F1 CSD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURS(LSI: 15C0-1700

I WIND SPEED IN KNOTS

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

IDEUTMEESI % WIND

N 1.5 1.5 .4 3.4 4.1

%NE 1.q 2.3 .4 .1 4.7 4.1

I 1.5 2.4 .1 4.1 4.1

E NF 1.4 2.8 .8 5 .4 4.5

C 1.4 2.2 1.4 .1 5.0 5.1

ESr I . 1.1 1.1 .8 3.8 7.2

SE .3 1.1 1.8 .9 ".1 4.2

$5 I 1 1 .4 b.7

S.4 .4 .8 5.0

5S6 .4 .5 1.1 2.0 9.8

S. ,1 .5 .5 1.5 .1 3.n 10.1

WSW 1.5 1.1 .5 .3 3.4 5.2

w 5.3 7.9 3.0 .5 16.7 4.9

WNW 3.8 6.4 4.5 .7 .1 11.5 5.6

W 3.0 5.4 3.3 1.2 12.9 6.2

PIN .4 2.2 1.1 4.2 '.3

VANIAC LE I-I

CALM I///////III//// Iff/I////////(//////////I/.///////////////////// l/// //i////j// 4.7 ill/il

TCTAL I 24.4 39.4 19.8 7.5 .3 100.C 5.2

TrIAL NUMT

ER OF OBSERVATION3

: 738

3L3BAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEUuSAFETAC FROM HOURLY OBSERVATIONSAl. WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURSLSIT): I uD-WOOD

WbIND 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 TETAL MEAN

(OE60

EESI I 1 hINb....... ......... . : ...... :; ...............................................................................1;........;.......N4 1 .1 .1.3 2.4

NNE 1.4 1.1 .5 3.4 3.8

hF 2.5 1.3 .2 4.0 3.1

FNF I .1 .9 2.0 3.6

I 1.6 1.6 .2 3.4 3.7

FSC 1.4 1. 1 .7 .9 4.2 6.1

S F 1.1 .7 1.3 3.1 9.2

SSE .4 .2 .2 .7 4.5

s .5 .5 .4 1.4 6.-

SS6 2.7 1.1 .2 .4 4.3 3.8

Sw 2.5 2.3 .4 .5 5. 4.3

WSW 4.9 Z.O 6.Q 2.9

A 4.3 1.8 .4 .2 6.7 3.s

WNW 2.2 1.4 2.1! .4 6.0 5.5

NA 1.4 2.0 .9 .7 5.1 5.9

PIN W 1 .1 .2 .2 1.4 3. 0

VPRIQA LT

rcTOALr 30.7 17.7 6.3 4.9 O.O 2.6

1ITAL NUMTLR OF OBSERVATIONS: 554

uLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SFEED

uSAiLTAC FROM HOURLY OBSERVATIONS

AIR *EATHER SERVICE/MAC

STATION NUML R: 724916 STATION KAME: FT ORO/FRI3ZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURSILST): 21O0-23U0

.... .... ... .... ... .... ... .... ... .... ... . 0 s E.....' ...NOT ..... ..............................................I WIND SPEED IN KNOTS

lIPECTI0N I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 q-5S BE 56 TOTAL MEAN

(DEGILFS) I S WINL

........................................................................................................................................, .6 .4 1.0 3.0

NNF .8 .2 .4 1.3 4.1

NF 1.3 1.3 .4 3.1 4.0

ENE 3.1 1.3 .6 5.r 3.6

I 2.7 3.1 5.7 3.5

ISE.9 1.3 1.0 1.7 .2 7.1 6.5

SE 1.3 1.9 .8 1.3 5.4 6.9

ST I .6 .4 .2 1.1 5.0

S 1.9 .4 .2 2.5 2.6

SSW 1.5 .2 .4 .4 2.5 5.2

S6 2., 1.9 .4 .6 S.4 4.6

WSW 1.5 .8 .2 .2 2.7 3.7

w .8 1.1 .2 2.1 4.1

WNW .8 1.9 .8 3.4 5.1

PS 1.1 .2 .2 1.S 4.1

NNW .2 .4 .6 3.7

VARITAPLE I

CALM g/II/I/4/////////////////////////////I////////////////// //////////////// 49.6 /I////

TOTALS I 23.6 16.7 5.4 4.6 .2 100.0 2.q

TOTAL NUMPEC OF OBSERVATIONS: 22

6LLT.AL CLIMATOLOGYR BRANCH PERCENTAGE FRC3UENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS wINS SfEEUDEAF ElAC FROM HOURLY OBSERVATIONSAIR .EATHER SERVICE/MAC

STATION NUMAIR: 7214916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURS(LST)I: ALL

I WIND SPEED IN K4NOTSDIRECTION J 1-3 4-6 7-10 11-16 17-21 22-27 28-3! 314-140 412-47 48-5E. GE 56 TCTAL MEANILEOPEES) I 6,IND

N .9* .7 .1 1.7 3.14

NNF I 1.1 .9 .3 .0 2.3 4.0

NE I 1.6 1.7 .14 .0 3.14 4.0

F.;F I 2.1 2.1 .8 4.9 4.2

2 4.1 6.9 3.8 .14 15.1 5.2

Ib, 3.1 5.0 3.8 1.3 .1 .0 13.% 6.3

E. I 1.3 1.8 1.8 1.14 .2 6.4 7.6

'5 I .14 .14 .1 .0 1.0 4.2

s .5 .14 .2 1 1.2 4. F

55..6 .3 .14 .5 .0 1.9 6.8

S. V, .9 .8 .3. .7 .1 3.1 1.0

WSW 1.14 .8 .14 .2 .1 2.9 5.!1

2-77 2.8 1.5 .14 .0 7. S. 3

WN W 1.6 2.4 1.9 .2 .0 6.6 5.6

"A I 1.14 2.1 1.0 .14 14 .1 5.14

?'14 .7 .14 .2 1.14 4 .3

TOT AL 214.2 30.14 17.3 5.7 .6 .0 1 JO.3 4. 3

TOTAL NUmf-49 OF OBSERVATIONS: 14r23

LObAI CLIMATOLOGY BRANCH PLRCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINU SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIRW EATHER SERVICE/MAC

STATION NUM3ER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: FEB HOURS(LSTI: 0600-0800

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

I WIND SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-Z 22-27 28-33 34-40 41-47 46-55 GE 56 TLTAL MEAN(DEGREES) I s WIND

................................................................................................................................N .2 .4 5 6.0

NNE .4 4 .7 3.8

Ur 1.6 .2 .2 1.9 2.8

FNE 2.6 2.6 .b 5.6 3.9

E 10.4 8.2 3.3 21.9 4.1

S , 6.3 6.1 4.9 .9 18.2 5.4

F 2.6 3.0 1.9 .7 .9 9.1 6.6

S .9 .4 .2 1.4 7.1

1.2 1.2 2.1

Sw 1.6 .4 .2 2.1 3.3

S. 1.6 .7 .7 .5 .2 3.7 5.9

u5 .7 .2 .9 .4 2.1 7.8

1.4 1.2 .4 .5 .2 3.7 5.9

I ~.4 .7 1 .4 9.4

"- . 2 .4 . 9 8 . 2

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

2.9 9III

. 4.4 1.2 .2 100.0 3.8

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

bLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEL;USAFETAC FROM HOURLY OBSERVATIONSAll 6EATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: FEB HOURS(LST): 09GO-I1D

...............................................................................................................................hIND SPEED IN KNOTS

DIDECTION 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 ITAL MEAN£(, EESI S .INL,

N .4 .4 .1 .1 1.1 5.1

NNE 1.5 .3 1.8 2.5

NE 1.5 .9 .3 .1 2.8 3.8

ENE 1.6 1.S .7 3.8 4.2

E 5.6 10.9 6.5 .3 23.2 5.3

EE 5.7 9.2 8.4 2.0 .3 .1 25. 6.3

SE 2.7 2.4 2.7 2.2 .4 .1 10.6 7.5

SSE .4 .3 .3 .4 .3 1.6 10.0

S .3 .4 .1 .8 6.3

SS .3 .1 .5 .4 .3 1.6 9.9

IW .4 .4 .1 .3 .1 1.4 f.1

WSW .3 .3 .5 1.Z .4 2.7 11.1

.o . 7 1.1 .1 4.1 7.1

VNW 1 1.1 .9 1.1 .4 3.5 6.3

N W .5 1.2 .7 .1 .3 3., 1.0

NNW .B .3 .1 .3 1°5 5.3

VARIABLE

CALM I / 10.7 I/il

TOTALS 24.2 3C.7 22.8 9.2 2.2 , J700.0 !.6

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

TOTAL NUMBeR OF OBSERVATIONS: 737

tLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEOUSAFETAC FROM HOURLY OBSERVATIONSAIR .FATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: FEB HOURSILST): 12 0-14C0

I 6IND SPEED IN KNOTSDIRECTION I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEAN(OEGPEES) t .INU

.. ..-.. °o • ... . . . .. . . . .. . ........,.o........• • •I • • . .. I.... . .•° . . . . .. . . . . . . . . . .. . . . . . . .

N .7 1.2 .1 .3 2.3 5.1

NNE 2.0 1.4 .1 3.5 3.6

NF .9 1.5 .4 2.R 4.4

ENE 1.9 1.5 1.1 .1 4.6 4.7

E 4.5 2.7 1.6 .1 8.9 4.2

ESE 1.6 2.8 Z.2 .9 .1 7.7 6.6

SF .5 1.1 1.8 1.8 1.5 6.6 11.1

SSE .3 .3 .4 .4 .3 1.6 9.8

S

SS I .3 .3 12.5

SW .5 .4 .5 .8 .1 .1 2.6 9.9

WSW .9 .8 1.2 1.5 .3 4.7 8.9

I 1.8 5.7 7.7 1.6 .1 16.9 7.0

WNW 1.9 5.7 7.0 2.8 .4 17.9 7.6

NW 2.0 4.6 2.7 1.1 10.4 6.2

NNW 1.1 .9 .5 .3 2.9 5.2

VARIAPLE I

CALM 6.1/ / ///I/////j/IIIII///// ///I////i/I///I/ 6.1 I111l1

TOTALS I 20.7 3C.6 27.4 12.2 2.8 .1 100.0 6.4

TOTAL NUMPER OF OBSERVATIONS: 738

LOiAt- CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFLEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: FEB HOURS(LST): 15C0-1h)D


DIRECTION I 1-3 4-6 1-ID 11-16 17-21 Z2-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEANIDE ,REES) I I WINU

S .7 .6 ° 1.3 3.2

NNE .3 .6 .7 .3 I.e 6.7

NE .4 .9 .9 .1 2.3 6.4

ENE .3 .4 .7 3.6

E .6 .3 .9 3.3

IE.7 .4 1.0 .6 2.8 7.6

SE .3 .7 .6 .4 .6 2.6 10.1

5SS .1 .3 .6 1.0 15.7

S .3 .1 .1 .6 7.3

SSW .1 .6 .1 .9 6.5

SW .6 .3 1.0 1.2 .1 3.2 9.1

WSW .1 2.0 3.1 1.3 .1 6.7 8.3

2.3 12.1 14.6 2.3 31.4 7.1

wNw 1.6 8.6 11.4 3.6 .3 25.5 7.7

NW 1.9 4.2 4.5 1.8 .1 12.6 7.2

NNW .4 .9 .7 2.C 5.6

VARIABLEI i

TOTALS 10.7 32.3 39.4 12.3 1.9 IlUD.O 7.2

TOTAL NUMBER OF O8ERVATIONS: Eas

ULCbAL CLIMATOLOGY BRANCH PLRCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND StLEOUSAFETAC FROM HOURLY OBSERVATIONSAl? .EATHFR SERVICE/MAC

STATION NUM3ER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: FEB HOURS(LSrI: 160O-ZOO


DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-4C N1-N7 48-SS GE 5b TCTAL MEAN

ID(UREES) I W hIND

N 4.5

NNE 1.3 .8 .6 2.7 N.4

ME 1 .4 .2 .N 1.0 5.2

ENE .4 .2 .2 .8 4.0

E 1.5 .6 2.1 2.6

rSE .2 .6 .8 .8 .2 2.,5 8.9

SE .2 .2 .2 1.0 .2 1.7 12-3

TSE .2 .2 .2 .4 .2 1.2 1.8

S 1.7 .6 .2 .4 .2 3.1 S.z

SSW 1.7 1.5 .4 3.7 3.7

SW 2.3 1.5 1.0 .2 5.0 N.7

WSW N.2 4.2 1.5 .4 10.4 4.S

w 8.8 10.8 2.9 .2 22.7 4.3

WNW 1.7 4.8 4.0 1.2 .2 11.9 (.8

fA 1.2 1.5 2.3 .8 5.8 7.0

N N 1.2 .4 .2 1.7 3.6

... ;; ;;; . ..............................................................................................................

CAL I /I//// /////////i///I/i/i//i//j//// iii/i. //I////I// 23.5 Il/I/i

TOTALS 27.1 28.1 14.8 5.0 1.2 160.0 4.1

TOTAL NUMEEP OF OBSERVATIONS: ACZ

IL

UL3BAL CLIMATOLOGY BRANCH PLqCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIR ECTION VERSUS WIkD SFEEUUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUM9ER: 7Z4916 STATION hAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-8b

MONTH: FEB HOURSILST): 2100-23C0

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 1-10 11-16 17-21 22-27 28-53 34-40 41-47 48-55 GE 56 TCTAL MEAhIDEGEES) J 4INu

N*.4 2.0

NNE .2 .4 .6 3.7

NE .8 . ;.3

tNE 1.2 1.2 2.5 3.0

E . 6 .2 2.2 3.2

sr11 1.) .4 .2 4.3 4.T

SE .8 .6 .6 i.b 3.7 8.6

SSE .2 .2 .6 1.0 9.8

S 1.2 .. .2 . 2. 4. 4

SSW 3.3 2.7 .6 6.5 3.0

S I 3.7 2.5 .4 1.2 7.R S.I

WSW 2.0 4.3 1.2 .2 7.8 4.Q

W 2-2 2.7 1.2 6.1 4.6

WNW .6 1.8 .6 .8 .2 4.1 7.2

NW 1.2 2.0 1.2 4.5 4.8

NNW .4 .4 .2 1.0 4.4

VARITARLEI

TOTALS 21.7 2.7 7.0 4.9 .2 1.o.0 2. ?

TOTAL NUMOER OF OSSERVATIONS: 4b9

6L30UL CLIMAIOLOGY RBANCH P LP.ENTAGL FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND STLE,,&FETAC FROM HOURLY OBSERVATIONS

AIR" .FAIHrR SERAICE/MAC

STAION NUM.'LR: 724916 STATION KAME: F1 ORU/FRITZSCHE AAF CA PERIOD OF RECORD: 77-RbMONTH: FEB HOURS(LSTI: ALL

.......o ... o... ... o...........................o.............o...... ... I • .... ..... l. .... .........o............. ........o....I O WIND SPEED IN KNOTS

-I1ECIION 1-3 4-b 7-10 11-16 17-21 22-27 Z-33 34-40 41-N? 48-55 GE 5b TL7AL MEAN(DFGRCfSI I W WINU

•............°..........°..°..........Do...............°......................~.........D..........o......... ................

.4 .5 .1 .1 1.1 4.6

NNF 1.o .6 .2 .1 2.0 4.1

F1 1. 1 .7 .4 .1 2.1 4.4

FNE 1.4 1.3 .5 .0 3.1 4.1

E 4.1 4.1 2.1 .1 10.4 4.5

ESE ".8 3.7 3.2 1.0 .1 .0 10.8 6.1

SE 1.2 1.4 1.4 1.3 .6 .0 6.C 8.6

ISS .3 .2 .2 .4 .2 .0 1.3 I .2

S .7 .2 .1 .1 .0 1.2 4.9

I 1.0 .7 .1 . .1 2.? 5.1

1 1. 3 .9 .6 .1 .1 .0 3.6 6.7

WSW 1.2 1.R 1.4 .9 .2 5.5 7.0

,, 2.7 5.6 4~o 1.1 .1 14.4 6.3

N. I 1.2 3.9 4.4 1.1 .2 11.3 7.4

NW. 1.2 2.N 2.7 .1 .1 6.5, 6.6

"NW .7 .5 .4 .1 1.7 5.1

• .. ... .. o . ...... o ............. ..........o.......................o.. o............... ........ .........................RARIARLE

CALM I ///////// ///////////////I/////////I///////I/// ///I //// // 16.8 //I/f

TOTALS I 22.2 z.4 22.3 95 1.7 .1 00.D 5.7

• ... .... o.... •....... ........ •... .. o.......o.....o .... o. o... o...... o........ . . o.....•..............oo........ o ... .. ,.,. . o •.

TOTAL NIVMLEC OF OBSERVATIONS: 17..9

A__

ULbAt CLIMATOLOGY BRANCH PERCENTAGE FPEQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SkLEuUSAFETAC FROM HOURLY OBSERVATIONSAIR l EATHER SERWICE/MAC

STATION NUMrER: 724916 SIAIION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: MAR HOURSILST): 06,0-06CU

I WIND SPEED IN KNOTSUIPECTION I 1-3 4-6 7-1o 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TIAL MEANIUEGPEFS) I S l~

t. I 3 .3 .6 4.0

NNF .2 .2 .3 3.C

Nr .5 .5 1. 7

ENE 1.5 .6 Z.2 3.0

C 5.3 7.0 1.2 13.4 4.0

ESE 8.2 7.7 2.9 .5 19 . 4.4

SE 1.7 2.3 2.3 .6 7.0 6.1

SSE .5 .3 .R 2.8

S 1.5 . .5 .2 2.9 '4.2

SSW 1 .1 .8 .2 2.0 3.2

SW 1.4 .9 .6 .2 3.1 4.6

WSW .4 .3 1.1 2.3

,,1.9 .8 1.1 .2 3.9 4.V

W NW 1.2 .3 .6 .2 .2 2.5 6.1

NW .8 1.4 .8 2.9 4.0

S.3 5 5 .2 I, 60

VAR TAJ3ETF I

CAL' 36.2 /ll//I

TOTALS I 27.0 2N.1 IC.7 1.9 .2 J.) I ,

TOTAL NUMFER CF OBSERVATIONS: 647

6L3bAL CLIMAIOLOGY BRANCH PEPCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VFRSUS WIND SFEEJ

JSAFETAC FROM HOURLY OBSERVAIXONS

AIR .EATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: MAR HOURS(LST): 0'T-11CO

I WIND SPEED IN KNOTSU IRECTION f 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEAN

(DEGRE.S) x I WIND

N 1.4 1.2 .2 .1 3.0 4.2

NJNF 1.0 1.0 2.0 3.3

1i 1.8 .7 2.6 2.8

EN F 2.2 1.4 .1 3.7 3.4

3.9 5.3 3.8 13.0 5.0

F5E 3.0 7.1 4.8 1.2 16.1 6.0

1.5 .. 5 2.8 1.2 6.0 7.0

SSE .2 .6 .6 1.5 5.6

S .7 .4 .2 1.4 4.0

SSW .4 .7 .5 .4 .1 2.1 7.9

S w .6 .6 .5 .1 .8 6.3

WSW .1 1.1 1.7 3.0 6.6

I 1.7 3.4 3.0 .1 8.2 5.5

WNW 1.3 4.2 3.0 1.0 .1 .1 10.2 .5

NW 2.1 2.0 1.6 .4 .1 6.2 5.q

1N1 1.4 1.1 .4 .2 3.1 4.6

VANIATLE

CALM P // ///////// //// ///// //// /////////// 14.3 //1///La

TOTALS 23.9 33.3 23.2 4.7 .4 .2 :uO.O 4.9

TOTAL NUMBER OF OBSERVATIONS: 813

L , AL CLIMATOLOGY BRANCH PEPLENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIN.u SFLEAFETAC FROM HOURLY OBSERVATIONS

AUl .EATHLk SERVICE/MAC

STATION NU4LR: 724916 STAIION NAME: FT OPO/FRITZSHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAR HOURSILST): 12 0-14G0

I WIND SPEED IN ANOStIRLCTIUN I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEAN(ot Urz F$) I z WINU

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

N .6 1.2 .4 2.2 4.7

NNE .7 .1 .2 1.1 4.

N' .6 .7 1 1.5 3.t

ENE .6 .6 .1 1.8 4.0

L .2 1.2 .5 2.0 5.4

FSE .2 .9 1.2 .9 3.2 8.3

sr .4 .9 1.2 1.1 3.6 8.6

SSF .6 .2 .9 5.9

S .1 .5 .2 .9 5.3

SSW . .9 .5 1.5 10.2

SW .5 .1 .9 1.0 .2 2.7 IC.3

WSW .2 1.0 1.6 1.1 3, F.3

w 1.1 6.6 10.2 3.0 .1 Z1.0 7.9

W W 2.0 9.7 13.2 6.9 1.1 .1 33.1 8.6

NW 1.' 8.3 8.9 2.1 .6 13.7 7.8

NNW .7 1.5 .7 .4 3.3 6.*

VARIATLE

1OTAL 9.8 3c.1 36.7 16.9 2.0 .2 iO.O 7.

IlIAL NtMFEL OF OBSERVATIONS: A13

.LO;.AL CLISTOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND 51 LEcSAI ETAC FROM HOURLY OBSERVATIONSAl WEAIHER SERVICE/MAC

SIATION NUMBLR: 724916 STATION NAME: FT OROIFRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: MAR HOURS(LSTI: 15JO-17uO

IWIND SPEED IN KNOTSCI

0ECTI N 1-3 4-b 1-10 11-16 1T-21 22-27 28-33 34-40 41-47 48-55 GE 56 TLTAL MEAN

(OE LES) I wiND

. 3 .8 . 1.2 4.4

NNF .3 .3 2.5

NE .5 .4 1 1. 0 3.Q

E14E . .1 .3 3.5

..3 .1 .4 3.3

FS .4 .7 1.2 .4 2.2 8.9

SF1 .4 .5 .7 1.7 9.1

-S$. .1 .1 8.0

S .3 .3 .4 .9 8.0

SSW .4 .3 .7 6.

Sw .5 2.0 .8 .4 3.7 1C.1

ws W 1.7 3.4 .8 S.9 8.4

I 1.4 6.4 19.0 4.5 33.3 7.9

WNW I .7 7.7 13.8 5.2 1.7 .9 30.1 9.4

NY 1 .4 2.5 5.5 3.5 1.0 14 .11 9.6

3 .7 .5 .7 .4 .1 2.6 53.

VVRIVYLE

CALM III/I///Ii////jI//IIf//////////////////J//// 1.6 If/

TOTALS 5 5. ,3 47. 16.1 3.9 1.n 1,.0 E.9

TOTAL NUMrLY OF O9SERVATIONS: 7b2

It-

6 L)AL CLIMATOLOGY BRANCH PEC.ENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEJ

A1,4 .EATbIFi, SERVICE/MAC

STATION NUMIER. 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA P'ERIOD OF RECORD: 77-86MONTH: MAR MOURSILST): 18i.O-2000

I WINO SPEED IN K'NOTSb,I

0ICICTGN1 1-3 4-b 7-10 11-16 17-21 22-27 28-33 3R-4O 41-47 48-S5 GE 56 TLTAL MEAN

(DESPELS) I z WlN

I .5 .T 1 .1 3.3

-INF I .2 .2 3.0

.2 .2 .3 3.1

EN.E I .2 .3 1.5

L .5 .5 .2 1.1 3.4

ISE .5 .7 .3 .3 .3 2.1 9.4

SF .9 1.0 1.0 .3 3.1 6.S

SSE .3 .2 .2 .7 510

S I 1.3 .3 1.6 2.9

SS'. I .7 1.1 .5 .2 2.5 E.4

SW 2.0 3.0 2.0 .7 7.6 5.7

WSW 4 . .6 N.Y .3 12. 5.9

I 9.4 12.3 5.3 .5 27.N 4.7

liS I 1.5 5.9 4.9 3 .0 .B 16.1 1.8

NE l .3 2.1 3.1 3.9 .2 9.7 9.4

JN W I 1. c .2 1.0 .3 .2 2 .6 7.1I

VAR1APLEI

TOTALS I 21.3 32.8 Z 3. 3 9.5 1.5 15o0 cl

TOTAL NUMBER OF OBSERVATIONS: 6,39

,LOuAL CLIMATOLOGY BRANCH PERLPENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND ODIECTION VERSUS WIN[) S EDUSAFETAC FROM HOURLY OBSERVATIONSAIR EATHER SERVICE/MAC

TATION NUMBLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAR HOURS(LSY): 21DO-23UO

I WIND 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 TCTAL MEAN

DEG)REES) I % WINU

N 1.2 .5 .2 1.9 3.4

NNE .2 .2 1.0

NE .5 .5 2.0

ENE .2 .2 .3 3.5

E .7 .3 .2 1.2 3.7

ESE 1.9 .5 .3 .2 3.0 4.1

S I 1.0 1.4 .9 .5 3.8 6.3

SSE .7 .7 .3 1.7 4.5

S 2.1 .3 2.4 2.5

SSW 3.7 3.0 .5 7.2 3.6

SW 3.5 4.9 2.8 .5 11.7 4.9

WSW 2.1 4.4 2.3 .5 9.3 5.6

I 5.8 5.4 1.0 12.2 3.9

WNW 1.6 2.1 2.1 .9 .3 7.0 7.0

NW 1.7 1.6 1.7 .5 .2 5.4 6.7

NNW .. .7 .5 .2 1.2 6.7

VAN IAALI

TOTALS 27.1 25.7 12.9 3.3 .5 1U0.0 3.4

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

ITOTAL NiJMV' . OF ORSERVATION': ,72

|IA

uLJmAL CLIMATOLOGY BRANCH PLRCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WI'ljL S$EEUaSAFETAC FROM HOURLY OBSERVATIONSAIR EATHER SERVICE/MAC

STATION NUM9LR: 724916 STAIION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORDO: 77-86MONTH: MAR HOURS(LST): ALL

WINO SPEED IN KNOTS

UIPECTICN I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 8-55 GE 56 TIYAL MEAN(ODFGPE.S) I W 1ND

N .7 *A .2 .0 1.7 4.1

NNF .5 .2 .0 .7 3.4

NE .7 .4 .0 1.2 3.1

ENE .9 .5 .0 1.4 3.4

E 1.8 2.5 1.1 5.4 4.5

ISE 2.3 2.9 1.9 .5 .1 7.8 5.7

SE .9 1.4 1.5 .8 4.6 7.0

SSE .3 .4 .3 .9 5.0

S .9 .4 .2 .0 1.6 3.9

SSW .8 .9 .5 .2 .0 2.4 5.4

SW 1.2 1.5 1.4 .5 .1 4.7 6.5

WSW .8 2.0 2.3 .5 5.6 6.6

I 3.2 6.1 7.0 1.5 .0 17.9 6.5

WNW 1.5 5.3 6.7 3.0 .7 .2 17.4 8.4

NW 1.2 2.6 3.1 1.8 .4 .0 9 . 8.0

NtJ I .7 .R .6 .3 .1 .C 2.5 6.6

VARTAFLE

IITOTALS is 183 28.7 26.8 9.2 1.4 .3 100.0 1.6

TOAL NUM2LR OF OOSERVA71ONS: 4216

a£

.LO6AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WlNJ St EEUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

5TA7ION NUMBER: 724916 STATION NAME: FT ORDIFRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: APR HOURS(LST): 06C0-OALO

WIND SPEED IN KNOTS

DIQECTITN I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-S5 GE 56 TCTAL MEAN(OEGEEB I x wINU

N 1.0 Z. .2

NNE .3 .3 2.5

NE 1.1 .3 1.4 2.7

ENE 1.6 1.1 2.7 3.2

L 4.3 t.0 1.1 .2 11.6 4.2

ESE 2.9 6.9 1.4 .2 11.4 4.6

SE 1.6 2.6 1.1 .8 6.1 6.0

SST .3 .3 2.0

S .8 .6 1.4 3.1

SSW 1.3 .8 .2 2.3 3.2

SW 2.6 1.4 .3 4.3 3.4

WSW 1.9 1.4 .3 .3 4.0 4.7

I 2.3 2.6 1.0 .3 6.1 5.1

WN 1.3 2.1 2.1 .3 5.8 5.9

NW 1.0 1.3 1.1 .3 3.? 5.7

NNW 1.0 .3 .2 1.4 2.8

VAilAILE

CALM 5/.9////1/////II/III////I//II//ii/ /// ///iii/////I/Ii/ii//////I/ 35.9 Il//I/

TOTALS 25.3 27.5 8.9 2.4 100.0 2.9

TOTAL NUMPLR OF OBSERVATIONS: 621

~~c_

GL3AL CLIMATOLOGY BRANCH PEQRENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRFCTION VERSUS WINU SkLElbuSAFETAC FROM HOURLY OBSFRVATIONSAIR WEATHER SERVICE/MAC

STATION NUMSLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIO0 OF RECORD: 77-86NONTH: APR HOURSILSTI: o9zr-i1LC

IWIND 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 TCTAL MEAN

(DcEES)I I .INU................................................................. ..........................................................

1.8 1.0 .1 2.9 3.3

NFE 1.0 1.1 .4 2.5 4.2

NF . .8 .1 2.4 3.1

ENE 1.6 1.0 .5 3.2 3.9

E 1.6 3.2 1.5 6.3 5.1

ESE 1.6 2.7 2.0 .4 6.7 5.8

SE .6 1.5 1.3 3.4 5.8

SSE .3 .3 5.0

S .y .1 .4 2.7

SSW .1 .1 .3 S.0

SW .6 .6 .5 .1 1.9 5.5

WSW .6 I.9 2.2 .S 5.3 6.9

2.0 7.1 0.3 2.2 21.S 7.0

WNW 2.2 7.2 7.4 2.3 .1 13.1 7.2

NW 1.6 3.8 1.9 .4 7.7 5.6

NNW 1.3 1.4 .3 .1 2.q 9.3

VARITAFLE

CAL- /II//IIII///////j///////////II//III//fj//II 13.4 fI/

TOTALS I.4 33.6 28.5 6.0 .1 lO.O 5.2

I3TAL NUMP,:Z OF O0SERVATIONS: 789

JLQI -At CLIMATOLOGY BRANCH PLPCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO qFEEUSAk LTAC FROM HOURLY OBSERVATIONS

l,1 .EATHFR SERVICE/MAC

TAIION NUMBER: 724916 STATION KAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: APR NOURSILST): 12LO-14cO

I WIND SPEED IN KNOTSbIVECTION 1 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-S5 GE 56 TfTAL MEAN

UF1TE ES I % WINb...... ... .. .. ... .... .... . :;..... .... .... ..... .... ..... .... .... ..... .... ..... .... .... ..... .... ....

N • .9 .3 1.1 5.0

NN' .3 .1 .4 9.3

I .3 .1 .3 .8 5.2

E .5 .1 .6 6.0

FSF .3 . ..8 .1 1.5 7.3

t ,1 .1 .5 .1 .9 7.6

I .0 1 .3 6.0

$5 .5 .3 .8 7.5

SW .3 . .1 .8 7.3

IS .1 s5 1.6 1.4 3.7 9.9

I .8 5.4 ZC.5 14.4 .4 41.6 9.6

WNW .5 4.8 16.9 12.4 1.3 .3 36.1 10.1

I .1 3.2 4.6 1.6 9.5 8.1

-leT .3 .1 .6 4.9

VArIAbLE I

TOTAL' I 3.n 1b.9 46.4 30.7 1.6 .3 1O0.0 9.3

ICTAL NUMILR (F OBSERVATIONS: 7*9

uL,)AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINU SIEEULSAF-TAC FROM HOURLY OBSERVATIONS

AIR wEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-8b

MONTH: APR HOURSILSTb: 1SCIC-17CO........... .......... .......... ........... .......... .......... .......... ........... .......... .......... ..........

I "WIND SPEED IN KNOTS

L IPECTIU O 1-3 4-6 ?-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TLTAL MEAN

IDEPEES) I W WINU

I1 .4 .3 .7 3.2

NNE .3 .3 4.5

NE .1 .1 .3 3.5

ENE

E .1 .1 b.9

FSE .1 .7 .1 1 . 4.6

SE .3 .3 .5 6.3

SSF .1 .1 .3 7.5

S .4 .1 .1 .1 .9 5.3

SS I .1 .1 .1 .4 .3

SW ,3 .3 .7 1.2 6.6

WSW 1.0 4.4 2.7 8M. 0.6

W .4 7.4 28.2 13.8 .3 50.0 9.4

WNW .3 4.4 12.4 10.1 2.3 .7 irl.1 11.0

NW .1 1.0 2.0 1.5 .5 .1 5.3 10.9

NN I .4 .1 .5 6.0

.. . .. . . .. . .. . . .. . . .. . .. . . .. . .. . . . ......................................o ,.... .,. ...VaIA 1ILf

CAL" /IiI // i // /i ////I / //////i//I/IiIIII// /////II/ //I/I/////I// //II , /1//1

TOTALS 2.2 16.S 48.6 28.3 3.1 .8 IJO.0 9.7

TOTAL NUPEP OF ORSERVATIONS: 73q

LIbAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WiND UIRECTION VERSUS WIND SFEEOUSAFETAC FROM HOURLY OBSERVATIONSAIR aEATHEk SERVICE/MAC

STATION NCMPLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: APR HOURS(LSTI: 16BO-2UGC

WIND SPEED IN KNOTSDIPECYION . 1-3 4-6 . -10 11-16 17-21 22-27 28-33 34-40 41-4. 48-55 GE 56 TCTAL MEANIDEGrE'Sl I % WINU

N .5 .2 .2 ".9 4.0

NNE .2 .2 1.0

NE .2 .2 2.q

ENE .2 .2 2.0

L

ESE .3 .2 .5 4.0

SE .3 .3 .7 6.0

SSE .2 .2 4.C

,3 .3 .3 1.0 5.0

SS .3 .3 .3 1.0 4.8

SI 1.4 2.3 3.8 .3 7.9 6.7

WSW 1.0 6.0 9.4 1.6 20.1 7.1

w 8.? 16.6 13.6 1.0 39.4 5.7

WNW .9 4.2 7.3 4.2 .9 .2 17.6 9.5

N6: .3 1.6 1.4 .7 .2 4.2 8.2

NNW .7 .7 1.4 3.0

VARIASLE I

TOTALS I 14.7 34.7 37.0 7.9 1.0 .2 100.0 6.5


LLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND OIRECTION VERSUS WIND SIEEDUSAFLTAC FROP HOURLY OBSERVATIONSAIR .FATHER SERVICEiMAC

STATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-RbMONTH: APR HOURS(LSTJ: 2I10-Z300

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

uIIECTIlO I 1-3 4-6 7-10 11-16 17-21 22-27 28-3S 34-40 '61-47 48-55 GE 56 TCTAL MEAN(DE(cE [SI I WIb

.................................................................................................................................N .8 .2 .9 2.6

NNE

NE .4 .4 2.5

ENf .2 .? 2.0

L .2 .2 .4 3.5

FSE .4 .4 10.0

Sf .9 .2 .6 1.5 4.5

SSE .6 .6 4.0

s I 1.1 .2 1. ~ 2'

SSW 3.6 4.0 .9 4.5 4.2

SW 3.4 7.6 4.7 .6 16.3 5.7

WSW 3.6 4.9 3.8 .6 IZ,9 5.4

I 5.5 9.7 5.1 20.3 SI

VWfA 1.7 4.6 2.8 1.7 10.8 6.7

NW .4 1-5 1.1 .4 3.4 6.7

NN. .2 .? 1.0

.............................................................................................................................VARTATLEI

CALM 21.4 1//// /

TOTALS Z 1.83 33.6 19.5 3.2 100.0 4.2

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

IOTAL NUMEER OF OBSERVATIONS: 527

uLOEAL CLIMATOLOGY BkANCH PLOCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE ;IPJD UIRECTION VERSUS dINl SfLC.j-AFETAC FROM HOURLY OESERVAIIONS

AIR oEATHLR SERVICE/MAC

STATION NUMFER: 724916 STATION NAME: FT ORO/FRITZSCHL AAF CA PERIOD OF RLCORD: 7T-86MONTH: APR HOURSILST): ALL

,.o......,.,.,.o.,.....°.....,..,,...,°.,°,..°...,.......................,....o.,...........o,..o.....,...,°..,,,-...,,,-,.

IWING SPEED IN KNUISDIRECTI(N 1 -3 4-6 7-10 11-16 17-21 22-Z7 28-33 34-40 41-47 48-55 GE 56 TETAL MEAN

(DEbPEES I I WINU...... ;...............;........;........i........................................................................;........;.......

N .8 .5 .1 1.4 3.5

NNE .3 .3 .1 .0 .7 1.5

UF . .3 .1 1.3 3.3

S E 6 .4 .1 1.1 3.5

E 1.0 1.7 .5 .0 3.2 4.6

ESF .9 I.4 .9 .1 3.7 5.9

SF .5 .8 .7 .1 2.2 6.0

SSF .C .2 .0 .2 4.5

S .5 .2 .1 .0 .. 3.8

SSW .7 .% .2 .1 1.9 4.5

SW 1.3 1.7 1.5 .2 4.7 5.7

WSW 1.1 2.6 3.4 1.2 8.3 7.2

W 2.9 7.8 13.9 6.0 .1 30.6 8.0

WNW 1.1 4.7 8.7 5.6 .8 .2 21.1 9.3

NW .6 2.? 2.2 .9 .1 .0 6.n 7.6

NNW .5 .s .1 1o 1.2 3.9

IIARZA',LE

CALM I //(I ///I/I/i ///// /// ////i//II/// ///// ///////////////////////////////iII/I/ 12.7 I///11

TOTAL" 13.4 2b.4 32.7 14.2 1.1 .2 IJO°. 6.

IOTAL NIJMLLQ OF OSSERvATIONS: 4CJ3

!L),IAL CL'.ATOLOGY BRANCH PEPLENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIREC7ION VERSUS WIND SI EEUuSAFETAC FROM HOURLY OBSERVATIONSAI wEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 77-86MONTH: MAY HOURS(LST): 06U0-0600

I WINO SPEED IN KNOTSDIPECTUN 1 1-3 4-6 7-10 11-1 1 7-21 22-27 28-33 34-40 41-47 48-55 GE 56 TlTAL MEANIDFGPEES) I WINL,

...................................................................................................................................N .4 .4 1. 2 3.2

rNE .5 ] .7 2.0

NE . .1 1.0 2.4

ENE .7 .3 1., 2.7

E 2.6 1.6 .5 4 .R 3.6

FSE 3.1 2.2 .7 6.0 3.7

SF .5 .3 .1 .r! 3.4

SSE .8 .3 1.1 2.9

S .7 .4 1.1 3.4

SSW 2.2 1.4 3.9 3.3

SW 2.6 1. 4 .1 4.9 3. 9

WSW 3.1 5.0 2.3 .3 1.8 4.9

.4 I 4.8 6.4 5.9 .8 19.9 5.4

WNW 2.3 3.1 2.5 1.6 9.S 6."

N W 1.9 .7 .1 .1 2.9 3.4

NNW 1.0 .3 I .2 2.7

VARIALLE

CALM I 1 1

/''1

I29.b fill/////I//I//'lI/////i//I/III/i//#,I,,i,,,,,,i ,,u,,,,,ij,,,,,i,,, 29.6 IIIIII

TOT ALS 924,5 2o.4 12.5 3.0 1.0.0 3._

ISTA . N.M, ... F .. .O o ... o.,, ...A.V33....4.. ... .... ,, ...... .. .... ... °.. °....... ° .. .... ,.. .. ..

InIAL NUM9ER OF OBSERVATIONS. 734

6LU-IAL CL ATOLD&3 BRANCH PERCENTAGE FREIQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND lJLEU

.7AFEIAC FROM HOURLY OBSFRVATIONSAIR WEATHFR SERVICE/MAC

STIATION NUMRLR: 724916 STATION NAME: FT ORDIFRITZSrHE AAF CA PER10D OF RECORD: 77-86MONTH: MAY HOURS(LST): UI900-1ICO

I WdIND SPEED IN KNOTSDIPECTIUN I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 1TLAL MEAN

GE60EE!I % WIND

N .6 .6 1 .1 3.G

'IN .8 .4 .1 1 .3 3.4

S 1.1 .3 1.4 ZS

F N .9 . 2.4 3.1

I 1.5 1.1 .3 2.9 3.7

ESE .6 .8 .3 1.7 4.4

SF . 3 .3 .1 .5 S,.

6SSF , .3 .4 .3

I .1, .1 2,3

sw .5 .4 .3 3 1 .4 5.6

,,SW 1-1 1.4 3.4 .4 6.4 6.?

I 3.I 14.5 21.2 5.1 .1 44.5 7.4

WNW .1 7.0 8.9 3.8 .8 27.' 7.7

N W 1-3 1.8 1.9 .1 5.1 5.9

NNW .6 1.0 .3 1, 4 .4

..................................................................................................................................VAR 1A t~L I

CALM 6.2// II // // // /// i///iII/////I/// 6.2 i/I/li

TOTAL 16.2 3C.1 36.8 9.? .9 1Uo.c 6.4

I . O...F .. V...V.. A7.........oN 7...., ..... . ...... •... . ... .. ... ... , •..... o .... . °,.......86..... ° .... .....

I'1TAL NUMtPL O)F {qSERVATIONS: 786

LAL CLIMATULUGY BRANCH PLPCEINTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIlND DIRECTIUN VERSUS WIND Sf EE U~ETAC FF04 HOUkLY OBSERVATIONS

AIP WEATI1Fk SERVICE/MAC

TATION NUMqER: 72.4916 STATION NAME:; F7 ORD/FRITZSCHE AAF CA PERIO0 OF kECAPO: 77-86MONTHE: MAY HOUJTS(LSTI: 2-IU

I WIND SPEEDI IN KN015IPLCttAN I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 OTIAL MEAN

N .5 .4 .1 *0 ".C

NNE I..1 7.

NE 7 1. 7C

E

L

SSW I

5 .5 .3 .3 1. 7. 4

.J .4 1 . 3.3 5 .' 11.

- I .3 ',.6 iS. 6 28.1 1.0 .1 .2.7 1t..01

WN6 I 7 .9 13.2 10.6 1.0 2 7.9 1 C. 3

N 6 1. 1 1. 3 .3 2 . 7.0

NSA .1 .3 . *~ 7. 1

VAR AS.

CALP I //////////i/i/III///I/II/I///i/i///I/I/i/IIIiIIlil

1011. A.1 1.1 42.9 42.6 2.0 u1 .1D3

ilIAL NLMFER OF ORSERVATIONS: 766

,LJFKA( CLIlMA1OLOY BRANCH$ PLIPIENTAGE FFLUtNCY OF OCCURRENCE 1,1 SURFACE WIND UIRECTION VERSUS dO'JU Sl CEO,. FFEIAC FROM HOURLY OI3S[RVATlONSAf, FCATHFRCi SFRVICL/MAC

STATION NUrIRUR: 724916 STATION, NAME: FT OO/FRITZSCHE AAF CA PLPIOD OF RECORD: 77-8bMfPN1H: MAY IOuRS(LSTT: 15.0-17LC

I ..INO SPEED IN KNOTSLIPECTIc,. 1-3 4-t, 7-10 11-lb 17-21 22-27 26-33 3 4-40 41-47 48-55 GE 56 T(TAL. PEAN

I.3 .3 .6 7.0

NNE .1 .1 5 .0

NE

f F

ESF

Ost

S

SI

SI.* .3 q.-)

WSW I 3 .4 6.1 5.1 11 .9 13.O

w !0 4.7 30.4 29.1 .9 u5.3 10 .I

kN1 1. 7 7.4 7.4 2.0 141.6 11 .4

N' 1 .2 .7 21 .3 10.2

NIN. 6 1 .4 .1 .7 7.8

CAL" I. l/

TO0T0AL .6 7. 7 46. 1 42.4 3.1 1 3 .0 jt.6

ITAL NUMIER CF OBSERVATIONS: 6eA

h

uLOhAL CLIMATOLOGY BRANCH PEPCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VFRSUS WINU SFEEDJSAFETAC FROM HOURLY OBSERVATIONS

AIR .EAlHER SERVICE/MAC

STATION NUMBCR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF 4ECORO: 77-86MONTH: MAY HOURSiLST): 18-0-20C0


D19ECT70N I 1-3 4-6 7-1D Il-lb 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEANIDE50EES) x I WINb

.. . ..... .... .... ..... .... .... ..... .... .... ..... .... .... ... .. .... .. . ..... o .

NNE .' .?

NE

ENE

E 2.2 4.0

ESE .7 .2 -. 0

SE

SSE

S

SSW 1 .4 .2 .6 3.t

hi. .2 2.0 5.9 1.5 9.6 8.3

WSW 1.5 7.0 14.8 7.2 .2 30.7 6.9

W 1.9 19.9 21.7 5.7 .2 40.4 7.9

WNW .9 1.8 4.6 3.3 .4 11.1 '.3

NW .4 1. .7 .9 .4 3.7 f.4

NNW .2 .4 .4 .4 1.3 7.-

VAR IABPLC

CALM I I/ /I////////I////////I/////j/////////UIi/////// //////// /j/ //I// 1.' III///

TOTALS 5.7 24.3 48.1 19.1 1.1 b.1.O E.I

TOTAL NUM71. OF OPSERVATIONS: 40

I_

1QOAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINJi SILE.U 3SF ETA C FROM HOURLY ObSERVATIONSAIP' aCATHER SERVICE/IMAC

S.TATION NUMBER: 724916 STATION NAME: PT ORD/FRITZSCHE AAP CA PEPIOD OP RECORC: 17-B6MONTH: MAY HOURSILSTI: 21.0-23L0

I 6IND SPEED IN KNOTSLIPECTION I 1-3 4-6 7 -1c 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEAN(DEGPE IS) x W INU

N I 1.0 1 .0 1 .8

NNE

I .2 . .

ENE

E

TSP .'.2 3.

SE I

A .S . 1.0 3.F

S. I 1.2 1.0 1.2 3.4 5.1

16 .2 t.6 6.8 2.4 16.1 1.7

N5w 3 .2 7.3 13.1 5.1 28.7 7.7

I 5.6 ".0 10.9 2.2 27.7 6.4

Wt .5 2.9 2.2 1.9 7.5 7.9

N .7 .7 .2 .2 1.9 5.1

NN 1.9 .5 2 .4 2.6

TOTAL' I 1.7 28.S 34.5 11.9 O.fl 6.,

[UTAL NUM!"-;? OP OBSERVATIONS: 411

,LOvhAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTIUN VFRSUS wINU SfEELUSAFETAC FROP HOURLY OBSERVATIONSAIR WEATHER SERqICE/MAC

STATION NUMOER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RICORD: 77-86MONTH: MAY HOURS(LST7: ALL

WIND SPEED IN NOTS

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

TDFGrEES I ..lt,

N .4 .4 .1 .9 3.9

NV .3 .1 .1 .3.3

NE .4 .1 .0 .5 2.7

ENE .3 .2 .5 2.9

S. .6 .2 1.S 3.6

ESE .8 .6 .2 1.- 3.4

S F Il I 1 ,. .1

SSF .2 .1 .0 .3 3.8

S .2 .1 .3 3.4

SSW .6 .4 .1 .3 1.1 4.0

SW .6 I.5 1.7 .6 4.4 7.?

WSW 1.4 3.1 5.9 3.2 .0 13.6 8.1

I 2.5 8.8 19.8 12.9 .4 V0 44.5 b.9

WNW 1.3 3.4 7.C 5.1 .8 17.6 9.2

.. ,8 1.0 1.0 .4 .1 3.2 t.6

NNW .6 .4 .3 .1 1.' 4.9

VARIABLE I

CALM I /I fII/Ii//I i/II/IIII jIIII/i/I.'I/II/III iI/II//III//II/I/I/II//I /II/I//IIII/II/// /I 4 .' /1l/11

TOTALS I 11.' 23.8 36.4 22.2 1.3 .0 cO.r 7.5

TOTAL NUM2ER OF ORSERVATIONS: 2945

LOLAL CLIMAATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE uF SURFACE WIND UIRECTION VERSUS WINO SFLEDUAFLTAC FROM HOURLY OBSERVATIONSAIR iEATHFR SERVICE/MAC

STATION NUMILR: 724916 STATION NAME: FT OPD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-8b

MONTH: JUN HOURS{LSI): U6 O-08UO


DIRECT 13N I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEAN

IDEGPE!S) I I WIN

N .5 .5 2.0

NNF 1.0 .1 1.1 2.1

NE 1.1 .4 1.5 2.5

ENE .4 .4 2.0

E 1.9 1.2 .3 3 .4 3.2

FSF .5 .4 .1 1.1 4.0

SE .4 .1 .1 .7 3.4

SSF .1 .1 .1 3.0

S .4 .4 1.7

SS U .3 .5 .1 1.0 4.1

SW 2.7 Z.6 1.2 .1 6.7 4.5

WSW 4.5 6.4 3.4 .4 14.7 5.2

W 8.7 9.0 2.9 .4 1.Q 4.4

WNW 4.0 3.A ,s .3 4.6 4.1

N6 1.9 1.9 .1 3.4 3.F

NNW .4 .3 3.4

VAR 0A~LE I

CALM 34.%///////////// /I/////I///III///i/jI//i///I/////I/////,j/// ////I////// 34.5 I//I/1

TOTALS I 28.5 Zb.9 6.9 1.2 iJO.O c.,

TOTAL NUM"IR OF OBSERVATIONS: 733

,'LO5AL CLIMATOLOGY BRANCH PLrCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECIION VFRSUS WIND SFLEOUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICL/MAC

STATiON NUM4ER: 724916 STATION NAME: FT ORD/FRITZScHE AAF CA PECIOD OF RECORD: 77-86MONTH: JUN HOURSILST): 09.O-1I1C

I WIND SPEED IN KNOTSUIpLCTION I 1-3 4-b 3-io 11-16 17-Z1 22-z7 28-33 34-40 41-47 48-5S BE 56 TLIAL MEANIDEGPEES) I w wINU

N ... 5 .. .6 2.8

NNE .3 .3 2.5

NC 1 .6 .9 1.5 3.7

ENE

E .4 .4 .4 4.0

ESE .3 .5 .1 .9 4.6

SE

SSF

S

SSW 6,D .1 5.

SW .4 .6 ,3 1.3 4.5

WSW 1.2 3.1 3.6 .5 .1 S. L.8

W 4 .4 15.9 e.S 5.5 46.3 7.3

WNW 4.2 7.8 8.8 1.5 12.4 6.2

PA l ,. 3.1 1.7 .3 6.9 S..,

NW .5 .8 .3 1.° 4.7

VUHIARLEI

CALM 8////////////////////// /// ////// ///// // / .8 111t11

TOTALT 14.6 33.3 35.3 7.8 1 O.O 6.n

TOTAL NUMIL7 OF OBSERVATIONS: 7aO

bLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SLEj

USAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHFR SERVICE/MAC

bTATION NUMALR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: JUN HOURS(LSI): 120-14CO

I WINO SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 ZZ-27 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

IDEGRELS) % WINU

N ,. .4 .5 6.8

NNE o1 .1 9.0

NF

ENE

E

ESE

SE

SSE

S

SSW

SW .1 .3 .4 7.3

WSW .9 1.9 2.b 5.4 10.4

w 5.4 28.7 28.5 .3 b2.A 10.3

WNW .4 4.0 13.3 9.7 .1 .1 27.7 9.8

NW .1 .5 1.2 .8 2.6 8.9

NNW .4 .1 .. ,8

VARIABLE I

CALM I ///I///////////////////////I/I//III///II////I//III/////I///////IIII////I//// //t

TOTALS I .6 IC.9 46.3 41.7 .4 .1 iJO.O 10.1

TOTAL NUMFER OF OBSERVATIONS: 760

ULObAL CLTMATOLOGY BRANCH PEOCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WIND OIRECTION VERSUS WINU SfLEUuSAFETAC FROM HOURLY OBSERVATIONSAIR WEATH!R SERVICE/MAC

STATION NUMTLE: 724916 STATION NAME: FT ORD/FTITZSCHE AAF CA PERIOD OF RCO1 : 77-86

MONTH: JUN HOURS(LSTI: 150-17CI

............................................................................................................................IwIND SPEED IN KNOTS

uolCI]ON j 1-3 4-6 7-10 11-16 17-21 22-27 2S-33 34-40 41-4? 48-55 GE 56 IT0AL MEAN(UEGELSI I I wl'tU

..................... ..............................................................................................................N

NNFNSF

ENE

E

rsE

SE

SSE

SSW

Sw .4 .9 1.3 7.8

WSW 1.6 6.3 8.2 .1 16.2 IC.'.

W .3 b.4 29.9 23.6 .1 b3.5 9.q

WNW .1 1.7 8.7 7.4 .3 .3 14.7 10-4

NW .9 1.2 .1 .1 2.3 12.4

NNW .1 .3 .4 .9 2.2

VARTA0LE I

CAL .6 lu s 46.6 41.0 .7 .4 10.0ALS I .6 I l.'. 46.6 41.0 .7 .4 ;O.3 IIII

TOTAL NUM'L* OF OBSERVATIONS: 666

S LO.AL CLIMATULOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINU SFEEUUSAFETAC FROM HOURLY OBSERVATIONS

AIR .EATHER AERVICE/MAC

SIATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: JUN HOURSILSII: 1860-2UCD............. ..............................................................................................................

WIND SPEED IN KNOTSDIRECTIO 1-3 4-b 7-10 11-1b 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TLTAL MEAN40EGREFS) % WIND

........................... ..............................................................................................................N .2 .2 d.0

NNE

NE

ENE

E .2 .2 2.0

ESE

SF

S

SSW .2 .4 .6 6.7

SW 2.0 4. 1 1.3 7.4 6.s

WSW 1.1 5.4 17.5 12.B 34. 9.2

W 2.n 14.7 18.4 4.7 .2 43.0 7.5

WNW .4 4.5 4.7 .9 10.4 7.0

N W .4 1.1 1.7 .6 3.7 7.4

NNW o7 .2 .4 6.0

AARIARLE

ALM / / 2 .2 //1/ K/

TOTALS 4.3 27.9 46.9 18.4 .2 ;.O.o 7.9

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

rOIAL NUMFEP OF OBSERVATIONS: si 7

GLObAL CLIMATOLOGY BRANCH PE9CENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SF EUSAFEYAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATIN NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RLCORD: 77-86MONTH: JUN HOURSILST): 2L10-23CO

..................... ......................................... ....................................................................wIND SPEED IN KNOTS

GCPECTG,' I 1-3 4-6 1-10 11-16 17-21 22-27 2S-33 34-40 41-47 48-55 GE 56 T(TAL MEAN(DEGrEES) % WING

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

NNE

NF . 2 ,0

ENE

E

FSF

SE 5 .s 2.C

SSE

S

£SS

SW .7 4.2 5.9 2.0 12.4 7.7

WSW 3.4 8.9 IA.7 7.1 3B.2 7.9

I 7.1 12.8 5.2 .5 'S.6 1.I

WNW 3.? 4.4 1.0 R., 4.3

N6 .7 .7 1.1 3.e

NNW .1 1 .1 1.7 3.6

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

TOTALS 17.2 32.n 33.8 9.6 ;jO. S.

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

TOTAL NUM'LR OF OSERVATIONS: 4J6

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE UF SURFACE WIND UIRECTION VERSUS WINO SILEuUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERICE/MAC

STATION NUMBLR: 7?4916 STATION NAME: FT OPD/FRITZSCHE AAF CA PEROD OF RECORD: 77-8bMONTH: JUN HOURSILSI): ALL

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

DIRECTIQN I 1-3 4-6 7-jo 11-16 17-ZI 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEAN(OPECSI j t INL,

S .3 .0 .1 .4 3.8

NNE .2 .0 .0 .3 2*B

NF .4 .3 .6 3.2

ENE .1 .1 2 *

E .5 .3 .1 .8 3.3

ESE .2 .2 .1 .4 4-3

SE .1 .0 .0 .2 3.3

SSE .1 .0 .1 3.1

S ,I .1 1.7

SSW .1 .2 .1 .3 5.3

SW .7 1.4 1.7 .4 4.2 t.7

WSW 1.6 3.9 7.2 4.3 .1 17.1 8.3

W 3.6 1L.4 18.6 11.7 .1 44.3 8.4

WNW Z,1 4.4 6.8 3.7 .0 .0 17.2 7.9

Nw .A 0.3 1.0 .5 .0 .0 3.6 6.b

NNW .3 .4 .1 .1 .9 sAN

...............................................................................................................................VARfIAiLE

CALM / 9.6 //I//

TOTALS 10.9 Z2. 35.6 2C.8 .3 .1 I.0.0 7.2

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

TOTAL NIIMTER OF OBSERVATIONS: 1522

GLO9:AL CL ZMATOLOGY 8RANCH PERYENTAG: FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS W1NL Si EED


AIR WEATHER SERVICE/MAC

STATiaOt, NUM'TCR; T24916 STATION NAME: FT ORD/FR1TZSCHE AAF CA PERIOD OF RECORD: 76-8.MONTH: JUL HOURS(LSI): u60O-68LO

WIND SPEED IN KNOTS

UIRECTIbN I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 42-A7 48-55 E 5b ICTAL MEA1.

fDEGO Eri) I .I

N 1.2 1.2 I.,

NNE ,8 .8 2.2

NE .5 .5 1.1 3.3

FNF 1.Z .1 1.3 2.0

C 1.5 1.5 .3 3.2 3.9

ESE 2.1 .5 2.7 .7

SE .4 .3 .7 .a

SSE .4 .4 .A 3.

S I .8 .3 1 .1 2.4

SSA 1.5 .7 .3 2.4 3.4

S I 2.4 2.7 1.3 6,4 4.4

WSW I 5.3 6.4 2.4 .3 14.4 6.5

W 7.4 0.8 2.1 13.3 4.1

WNW 2.9 Z.0 .4 5, 3.6

SW I 1.1 .1 1.2 .2

NNW .7 . , 2.9

VAH IAPEC I

CAL- // // / / // //// / 38.1 II1

TOTALS I 3n.7 24.6 6.6 .3 160.0l 2.4

TOTAL uUFr9ER OF OBSERVATIONS: 748

(,LObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO LUIRECT ION VERSUS .INU 41 LELUUSAFETAC FROM HOURLY OBSERVATION4SAIR WFA TH% SERVICE /MAC

STATION NUMLP: 724916 STATION NAME: FT OPD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: JUL HOURS(LST3: u9C;O-11CO

I WIND SPEED IN XNOTSDIPECTICN I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TLTAL MEANIDEGr'EFS) % 1 INb

N I .9 .6 1.s 3.1

XNE .4 .4 .3

E NE .4 .2 .6 2.

E I .5 .4 .4 1.2z 4.S

ESE I .. 1 3 .7

SE I

S I .2 2.

55 S. . .2 .7

56 W .7 .7 .4 :1 .o 4.8

WSW 1 1.6 14.0 3.2 .5 9 . b - 3

I. 3.7 16.1 18.4 3.2 .1 41.6 6.8

WNW 3.2 11.9 9.3 .4 Z2A 6.rl

NA j 1.7 3.4 1.2 6.3 4.9

NN6.7 .2 .0 1 .1 3.-3

VARIAPLE

TCTtL7 15 .3 37.9 3 3. C 4.2 .1 ;-.0 5. 5

TOTAL 66499EV OF OBSERVATIONS: qaS

GLObAL CLTMATOLOGY BRANCH PLQCENTAGE FREWUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS k1c) SIfLC JUSAFETAC FROM HOURLY OBSERVATIONSAIR 4EATHEH SERVICE/MAC

STATION NUMRLR: 724916 STATION NAME: FT OPO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-8MONTH: JUL HOURSiLST): 12'0-1420

I WIND SPEED IN KNOTSIPECTIAN I 1-3 4-6 7-IC 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 I(TAL MLEAN

I UE E f I I I?' L..... ..................... :]...............................................................................[;........;.......

[F

'

S~f

S6 .4 .4 11.7

S.1 1. 9 3.2 5.7 11.3

W 3 . 30.5 24.8 .Q.7 10.1

WNW .2 1.4 19.? 10.3 31.1 .9

t4 w 1.7 .7 3.2 .8

VAPIA9LE

CALLM I Ii/////i///i/ii//I i/I/I//I/III//Ii/////IiI/I/II//I/II//II//II/II///III//i//I//I //I////I .9IIIIII

TOTAL L .6 1.R 53.3 39.4 110.0 '.9

TOTAL INUM!{t OF OBSERVATION,: -U7

3LJOAL CLI.!ATOLOGY BRANCH PLPCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE .INU DIRECTION VERSUS WIND SI-LEJUSAFLTAC FROM HOURLY OBSERVATIONSAIR E.ATH!R SERVICE/MAC

STAT ION NUL9LP: 724916 TATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-A5MONTH: JUL HOURS(LSTI: ISLO-17LI,

I WIND SPEED IN KNOTSIPECTrr: 1 1-3 4-6 7-I 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 5b TTAL MEANlJEGr'E ! ) t WIND

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

E

S

S6 3 1 .2 11.5

WSW .1 6.5 6.1 12.8 1n.8

w 3.5 37.4 18.1 .4 ) .5 5.7

wW 1.3 14.1 9.1 24.5 G.r

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

CALm .1 //

TOTIOP L 5.5 b9.2 34. 7 .4 ;3. C q.9

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

TOTAL NUMPER OF ORSERVAIIONS: 649

I

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SF LEDUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHFR SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOO OF RECORD: 76-85MONTH: JUL HOURS(LSTi: IRJM-2JOO

I, WIND SPEED IN KNOTS

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

DEGPEFS) I % .INU

N ,2 .2 3.0

EINE

[NE

SF

SSF

S

SSw .2 .2 F

Sw .7 2.1 2.6 5.4 10.2

WSW .7 ,.3 11.9 8.4 .2 27.6 9.r

W 3.2 18.7 20.0 1.9 .2 43.' (-.7

WNW .9 15.4 7.6 .4 19 E.4

N6 .7 1.7 .7 3.2 5.,

NNW

VARIARLE I

CALM I I /I/I/ III// /II/ jjIII'II///JII/I///I/IiI//I /II///iI/II/I// .2 /l//

TOTALS I 5.9 37.9 42.5 13.2 .4 :;0.0 7.4

TOTAL NUMELR OF OBSERVATIONS: '36

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SfELuUSAFETAC FROM HOURLY OSERVATIONSAIR wEATHER SERVICL/MAC

STATION NUMSER: 724916 STAIION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-8SMONTH: JUL HOURSILSI): 21c-23CU

I WIND SPEED IN KNOTSOIPECrION r 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 46-S5 GE 56 TCTAL MEANIDEGREFS) I z WIN)

.................... ° :; ...... ,o ................ ,....,..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

N .3 .3 ".6 3.0

NNE .6 .6 1.5

Nr

ENE

L

sr

S I

SSW .9 .3 1.1 5.3

S. .9 4.3 6.0 2.8 13.9 8.0

WSW 1.7 8. 14.2 5.7 30. 4 7.8

w 9.1 12. 4.3 .9 27.0 4.8

%NW 7.1 6.0 .3 .3 15.6 3.9

NW 1.7 2.3 4.0 3.8

NN. .3 .3 .6 6.0

VARIARLE I

TOTALS I 21.6 37.5 25.0 9.7 1jo.0 5.7

OO

GLOBAL CLIMATOLOGY BRANCH PErLENTAGL FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SIEEwUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHFR SERVICE/MAC

STATION NUM3LR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-8b

MONTH: JUL HOURS(LST): ALL

WIND SPEED IN KNOTSDIPECTI2N I 1-3 4-b 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 Y(TAL MLAN(UEUPEFS) S .INL

N ,5 .2 .7 2.4

NNE .3 .3 2,.1

NE .3 .1 .4 2.8

ENE .3 .1 .4 2.3

L .4 .4 .1 .9 4.1

ESE .4 .1 .5 2.7

SE .1 .1 .1 2.8

SSF .1 .1 !. ,2

S .? I 1 . 2.4

SSW .3 .2 .1 .6 4.1

SW .7 1.1 1.2 .9 3.9 7.2

WSW 1.6 3.7 5.5 3.5 .0 14.4 b.7

w 3.4 10.0 20.1 9.2 .1 42.4 9.1

WNW 2.0 S.5 9.4 3.9 42.1 7.8 Io

N4 . .9 1.3 .9 .2 S. 1,

NNW .3 .2 .0 . 3 3.9

VARIAFLEI

CALF I IlII/II/I/I//iIIIIII ii/II/II//id/iII//II/II/I/II//ili///////IhI//II/III///I/////IIII//I 1t.7/11I/I

TOTAL' 11.7 23.1 37.4 17.7 .2 : o.' 6.9

TOTAL RUMFER OF OBSERVATIONS: 3c37

LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SiLESAF ETA C FROM HOURLY OBSERVATIONSIR WEATHER SERVICE/MAC

IrATION NUMBER: 724916 STATION NAME: FT ORO/FRIT2ScHE AAF CA PERIOD OF RECORD: 76-85MONTH: AUG HOURS(LSTI: 06J;C-OACU

I WIND 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 TETRL MEAN40EOPEFS) % WINU

N I .6 .6 1.8

NN F I .3 .3 Z.5

I .8 .8 Z.0

ENE .8 .A 1.7

L I 2.3 1.3 3.6 2.8

FSF I 1.9 1.4 .1 3.5 3.3

.SF 1.4 .6 .3 2.3 3.6

ISE .8 .4 1.2 2.9

5 1.2 1.2 1.8

SSW I 1.4 .1 I*R 2.3

S6. 3.? 1.9 .6 6.3 3.7

WSW I 6.1 t. .S 2.0 14.7 4.1

I 6.6 6.3 1.5 .1 14.6 4.3

WNW 2.0 1.8 .1 4.0 3.4

N' 1.4 .5 1 .9 2.7

FN I .9 .9 1.6

VAR TAPILEI

TOTALS I 32.2 2C.9 4.7 .1 iSD. .0 .0


GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SfEEUUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBEP: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: AUG HOURS(LST): 09C0-IILO

I WINO SPEED IN KNOTS

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

IDEGPEES) I x WINL

N .6 .6 1.8

NNE .T .7 1.p

NF .7 .1 .1 ".9

FNE .6 .6 2-.2

L .7 .8 1. 3.7

4r *4 .7 1.1 4.0

SE .4 .1 .5 5.3

SSE

S I .? .7 2.

ISASSW

SW I .8 .4 .2 1.4 4.0

VSW 1.8 3.0 1.4 .5 6.7 5.5

w 6.9 17.5 b.1 2.6 45.1 6.1

WNW 4.6 11.1 8.0 .4 24.0 5.5

NW 2.0 2.9 1.0 5.R 4.7

NNW 1.0 .2 1.2 2-

VARIABLE I

CALM /II///I/IIII II///IIIII///I//jIII//j/I//I////////I/j//III//I///////////////////j/I/III 11.7 111111

TOTALS I 21-1 37.0 26.8 3.5 AIO.0 N.9

TOTAL NUMnLR OF OBSERVATIONS: 840

GLOBAL CLIMAIOLOGY BRANCH PEPLENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINU S EEU

USAFETAC FROM HOURLY OBSERVATIONSAIR oEATHER SERVICE/MAC

STATION NUMOLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: AUG HOURS(LSTI: 12G0-14LO


UIPECTIJN I - 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 4b-55 GE 56 TCIAL MEAN

IDFBDL Ft,) I W INU........................, ....................... ..........................................................................

N .1 .1 3.0

NNr ,I .1 V.0

NF .1 -I 3.

ENT . .1 4.0

EST .1 .1 4.0

S I

SSF

S

SSW

Sw ,. .2 5.5

WSW .4 1.4 1.1 2.9 10.0

.4 '.2 34.9 21.0 61.4 9.6

WNW .2 2.6 18.5 10.1 .1.4 9.6

NW . .2 1.9 .4 .1 2.9 8.8

NNW .1 .1 .

VARIAPLE I

TOTALS I .1 9.0 56.B 32.5 .1 IuO.O 9.5

TOTAL NUMPCP OF OBSERVATIONS: 840

GLOAAL CLIMAIOLOGY BRANCH PLRCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND St-EEUUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBLR: 724916 STATION NAME: F7 ORD/FRITZSCHL AAF CA PElOD OF RECORD: 76-85MONTH% AUG HOURS(LSTI: I5 O-17CO

WIND SPEED IN KNOTSDIRECTION J 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE Sb TLTAL MEANIDEGREESI I x 6INU

N

NNE .1 .1 b.

NE

ENE

E

ESE

SE

SSE

S

SSW

SW .1 .3 *4 .9 10.3

WSW .3 1.0 7.5 3.6 12.3 9.7

w .1 5.5 41.4 17.2 o4. 9.3

WNW 1.1 13.2 5.3 21,11 '.4

NW .4 .6 .7 1.7 9.1

NN6 .1 .1 b.0

CALM P ////I//IJiII/IIj//I/////I////I///////,//,/j/j////JU//(/// / / / // / I//11

TOTALS .6 9.8 b2.9 27.1 100.0 9.3

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

TOTAL NUM!BER OF OBSERVATIONS: 722

GLOBAL EL1iATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND $$LEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORDtFRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: AUG HOURS(LSII: 180O-ZOU


DIRECTION 1 1-3 8-6 3-10 11-16 1T-21 22-27 28-33 34-4C 41-47 48-55 GE 56 TLTAL MEAN(DEGREES) I WIND

N

NNE

NF

ENE

SE

ISESSE

S

SSW .2 .3 6.7

SW .2 1.2 5.Z .5 7.1 7.8

WSW .3 7.5 18.7 6.2 32. R 5.8

W 8.5 20.5 14.9 1.9 41.p 6.3

WNW 1.4 6.4 4.2 .2 12.2 6.0

N .3 1.7 1.2 1.3 6.1

NNW . ..2 .2 . 5 1.0

VARIABLE

CALM I/I///////////////// I////// / / ///j/I//// /////,iI/I ,,/////I, 1.7 ///

TOTALS 6.9 37.7 88.8 8.9 100.0 6.9

TOTAL NUMVLR OF OBSERVATIONS: 576

GLOBAL CLIMATOLOGY BRANCH PLRCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEUUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-85MONTH: AUG HOURSILST): 213D-2300

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

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-Z7 28-33 34-40 41-47 48-55 GE 56 TLTAL MEANtDEGREES) I t %iIN

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

NNF

NE

ENE

ES!

SE

SSE

S .5 .5 2.0

SSW .8 1.1 .3 2.1 4.0

SV 1.9 3.7 6.1 .5 12.2 b.4

WSW 3.5 11.7 18.4 4.3 37.8 7.4

W 7.2 14.6 4.3 .3 26.3 4.7

WNW 1.1 2.4 .8 4.3 4.8

NW 1,. .8 1.9 3.1

NNW .3 3 .0

VARIABLE

CALM II//'( //////I///l/////////////IivI,/,,,/,//,,uIu/ 14.6 //I/l/

TOTALS 16.2 34.3 29.8 5.1 Q, .0 5.2

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


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FPEQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEE UUSAFEIAC FROM HOUkLY OBSERVATIONS

AIR WEATHER SERVICEIMAC

STATION NUM9ER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: AUG HOURStLST): ALL

I MIND SPEED IN KNOTSDIRECTIJN I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 T(TAL MEANIOEC.REES) II WINDJ

N .3 .3 1.9

NNE .2 . .0 .2 3.0

NE .3 .0 .3 2.S

ENE .3 .0 .T Z.1

E .6 4. 1.0 3.1

ESE .4 .4 .0 .9 3.5

SE .3 .2 .1 .5 3.9

SSE .1 .1 .2 2.9

S .3 .3 1.8

SSW .3 .1 .1 .6 3.4

SW 1.1 1.0 1.5 .2 3.8 5.9

WSW 1.9 4.2 6.6 2.2 1Q.9 7.3

W 4.1 11.0 20.3 8.1 43.4 7.8

WNW 1.7 4.6 8.3 3.1 17.7 7.7

NW .9 1.1 . .2 .0 3.9 5.4

NNW .4 .1 .0 .6 1.3

VARIASiLE

CALM P / /// / / // // //// /////// //// /// 12.0 "1/l/

TOTALS 13.1 23.3 37.8 13.8 .0 iUO.0 6.4


~6,.

oAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEOFETAC FROM HOURLY OBSERVATIONS! WEATHER SERVICE/MAC

.TION NUM4ER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 76-85

MONTH: SEP HOURS(LSTJ: U6 C-O6O0

I WIND SPEED IN KNOTSDIPECTION I 1-3 4-6 7-10 11-16 17-21 22-27 26-33 34-40 41-47 48-SS GE 56 ILIAL MEAN(OEGRFTS) I S wlu

N .6 .1 .7 2.4

NNE .3 .3 3.0

NE .8 .8 2.2

ENE 1.0 ,4 1.4 2.4

E 7.3 5.5 .8 13.7 3.6

FSE 6.1 3.9 .6 10.5 3.4

SE 2.1 .8 2.9 2.9

SSE .8 .8 2.2

5 .4 .1 .7 3.0

SSW 1.5 .7 2.2 2.7

SW 3.7 1.7 5. 3.

WSW 2.2 2.6 .4 5.3 3.8

w 3.9 3.3 1.0 8.2 4.2

WNW 1.7 1.4 .1 3.? 3.6

NW 1.2 1.2 1.7

NN6 .8 .1 1.' 2.3

VARIABLE

TOTALS 34.5 20.9 2.9 O A N.0 Z.0

ITAL NUMPER OF OBSERVATIONS: lz2

GLOBAL CLIMATOLOGY BRANCH PER(ENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFED

LISAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMPER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 76-85MONTH: SEP HOURS(LSI): 09U0-1100

WIND SPEED IN KNOTS

DIPECIION I 1-3 4-6 1-10 11-16 IT-21 22-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEAN

(DEGrEES) I % WIND

N 1.0 .6 .1 IP 3.1

NNE 1.9 .8 2.6 3.2

NF 3.7 .9 .3 4.9 2.9

ENE 2.4 .8 .1 3.3 2.8

E 3.5 3.7 1.3 .1 8.6 4.z

ESE 2.2 1.8 1.3 6.3 4.6

Sf 1.2 .5 .4 2.1 4.1

SSE .1 .1 2.0

S

SSW .6 .3 . 2.7

SW .8 .8 .1 1.7 3.9

WSW .5 2.4 1.0 .3 4.2 5.7

w 4.5 12.6 6.8 .3 .4.2 5.4

WNW 4.2 IC.O 4.8 .1 19.2 5.1

NW 2.2 3.3 .9 .1 6.6 4.5

NN .9 .6 1.Y 3.2

VAkIAVLE I

CALM 12.II /I 12.3 I/1/1/

TOTALS I 29.7 C.3 17.1 .9 100.0 4.1

TOTAL NUM!ER OF OBSERVATIONS: 777

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFLEUUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PEPIOD OF RECORD: 76-85MONTH: SEP HOURS(LSI): 12;O-14L0

WIND SPEED IN KNOTSDIPECIIVN I 1-3 4-b 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 ICIAL MEAN(OEGPErs) % WINU

N I 1. 3 5.7

.4E ,. .1 *s 3.5

E .1 .1 ,

ENE .4 . .,0

E .1 .3 .3 .6 5.2

ESE .1 .1 .3 5.5

SE .3 .3 5.0

SSF

S ..1 .1 1.0

54 .1 . . 9 .8

WSW .5 1.9 .6 3.1 .7

W .8 8.8 32.7 10.3 .1 52.6 4.7

WNW .5 E.9 2C.8 7.1 .1 34.5 6.8

Nw .4 .9 3.3 .5 5.1 7.6

NNW .1 .5 .1 .8 3,7

VARIAPLE 1

CALM /I /I /// //// I////// I/I//////////////I/ //i///////II 1.' I/I//I

TOTALS I 2.6 17.S b0.c 18.7 .1 .1 100.0 6.5

rOTAL NUM'ER OF OBSERVATIONS: 777

LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Or OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEUSAFETAC FROM HOURLY OBSERVATIONSIR WEATHER SERVICE/MAC

TATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: SEP HOURS(LST): 1500-17CO

WIND SPEED IN KNOTSDIRECTTON I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEANIDEGREFS) I x WIND

N .3 .3 5.c

NNE .4 .4 2.3

NE

ENE

E

ESE .1 .. 41 4 5.3

Sf .1 .3 .4 6.7

SSE .3 .3 2.0

S

SSW

Su .3 .3 8.

WSW .1 2.7 6.6 2.2 11.7 8.3

2.4 11.8 36.9 8.7 59.B 8.2

WNW 3.4 12.6 5.7 . 21.) 9.3

NW .4 .4 1.6 .4 3. 7.7

NNW I. .1 i.T

VARIAELE

CALM I I/I/II//I/i//i/I/Ii/I//I///i//iII//II///i,//i////I/Ii i/j/I/ /Ij'i ,,j/../ij/i/ii,, j, / 1 .2 I/I//

TOTALS 3.9 19.0 58.6 17.1 .1 JCO. 3.3

TOTAL NUMBER OF OBSERVATIONS: 6.7

GLOBAL CLIMAIOLOGY BRANCH PEPCENTAGE FREQUENCY OF OCCURRENCE Of SURFACE WIND UIRECTION VERSUS WINo SFEEuUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF LA PERIOD OF RECORD: 76-85MONTH: SEP HOURSILSI): 1800-2000

..WIND SPEED IN KNOTS

DIRECTION t 1-3 4-L 7-10 11-16 17-21 22-27 28-33 34-40 4147 48-55 GE 56 TCTAL MEANIOEGPE Sf 5 0 WIND

. N .4 . .0

NNE .2 .2 4.1

PE .2 .2 1.0

E .E .2 * 1.0

E

ESE .2 .2 .4 4.5

SE .4 .4 ?.S

SS I .4 .4 z.2

S .2 .2 2.0

SSW .2 .6 .8 3.A

Sw 1.5 5.4 2.9 1.4 II.2 C."

WSW 4.2 8.3 8.7 2.7 23.9 6.5

W 10.6 18.9 5.6 1.0 3.1 5.)

WNW 1.2 5.6 3.3 .2 10.2 5.6

N6 i.5 1.4 .8 .2 3.9 5.0

NN J .4 1.0 1.4 4.6

VARIABLE I

CALM //I/III/(///f/I// ///////////////////////j/// / //// /jj/////// 12.2 I/I//i

TOTALS I 21.6 41.3 21.4 5.4 jo.n S.D

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

TOTAL NUMYLQ OF OBSERVATIONS: 618

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECT:ON VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUM3LR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-85

MONTH: SEP HOURSILSTI: 2130-23GO

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

OIRECIOLN 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEANIDEGEFS! I % WIND

.................................................................................................................................N I 3.0 4.11

NNE

NF

ENE .. .3 2.0

E .3 .3 2.0

ESE .Q .Q 2.3

SE .6 .6 2.0

SSE .9 .9 2.0

S

S56 1.2 .9 .9 3.0 4.9

SW 5.9 2.7 3.0 1.2 12.A 5.2

WSW 4.5 8.6 3.6 1.5 18.1 5.4

W 10.4 6.C 2.1 20.5 3.7

WNW 3.3 2.7 .6 6. 4.0

NW 1.8 1.5 .3 3.6 3.9

NN- 1.2 .3 1.5 2.4

..............................................................................................................................VARIAMLE I

CA L

' ///////////////////// / // ///// / 30.9 /11

TOTALS I 31.2 24.9 10.4 2.7 IO.0 3.1

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

TOTAL NUNPfE OF OBSERVATIONS: 337

nI

o

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINU SfLEUUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMHER: 724916 STATION KANE: FT ORD/FRIT2SCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: SEP HOURS(LSTI: ALL

WIND SPEED IN KNOTSDIRECTION j 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEAN(DEGREES) % s WINL

N .4 .2 .1 .7 3.2

NNE .6 .2 .0 .8 3.2

NE .9 .2 .1 1.2 2.8

ENE .7 .3 .0 1.0 2.7

E 2.2 1.9 .5 .0 4.5 3.9

ESE 1.8 1.3 .4 3.6 3.9

SE .7 .3 .1 1.2 3.6

SSE .4 .4 2.1

.1 .1 .0 .? 4.0

SS6 .6 .3 .1 1. 3.4

SW 1.6 1.5 .8 .3 4.2 5.0

WSW 1.5 3.5 3.3 1.1 9.4 6.5

w 4.6 10.4 15.7 3.8 .0 34.5 T.1

WNW 1.7 S.1 8.0 2.5 .0 .0 17.4 7.5

NW 1.2 1.3 1.3 .2 4. 5.6

PJN'd .5 .4 ,1 1.0 3.6

VARIABLE I

CALM ///////I/////////////////////////////II////////III//I///I/I///I///iI 14.9 1//1/1

TOT ALS I 19.6 27.0 30.5 8.0 .1 f) 10O.0 5.3

TOTAL NUMPjl OF OBSERVATIONS: 3798

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINU Si EEUUSAFETAC FROM HOURLY OBSERVATIONSAIR 6EATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FI ORD/FRITZSCHE AAF CA PEIOU OF RECORD: 76-85MONTH: OCT HOURSILST): 0600-0800

WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-4T 48-55 GE 56 ICTAL MEANtDEGPEES) I I WINL

N .. .1 1.0

NNE .5 .3 . ".8

NE 1.8 .7 2.4 2.9

ENF 2.8 1.1 3.9 2.7

E 8.8 8.9 2.8 20.5 4.1

ESE 6.7 6.3 2.2 .1 15.4 4.2

SF 1.5 1.1 .3 .3 3.1 4.7

SS .7 .1 .1 .9 Z.7

S .3 .3 2.5

SSW 1.S .3 1.8 2.6

SW 1.9 1.: .1 3.1 3.1

WSW .8 1.2 2.fl 3.A

W 2.6 .8 .5 3.9 3.7

WNW 1.2 .7 .3 2.2 3.6

NW .1 .1 .3 3.5

NNb .3 .' 1.0

ViR IABLE

IOTAL$ 31.5 22.6 6.3 .4 100.0 2.3

TOTAL NUMPEI OF OBSERVATIONS: 742

bLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMRLR: 724916 STATION hAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: OCT HOURSILSTI: C90. -IIUD

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

DIRECTION I I-3 4-6 7-1n

11-16 17-21 22-27 28-33 3%-4O 41-4? 48-55 GE 56 TCTAL MEAN

IDEG.EfS) I &1h,

.......................... ...... ...... ......................................................................................N 1.7 .7 .2 2.7 3.2

NNE 1.2 .5 .1 1.8 3.2

Nr f 3.6 .7 .4 4.7 3.1

ENE 2.2 2.2 .1 4.5 3.6

E 7.1 6.7 4.4 .4 18.7 4.8

FSE 3.! b.9 3.4 .1 13.7 5.3

SF 1.0 1.1 .T .1 2.9 5.0

SST .2 .1 .1 .5 4.0

S I 1 .1 .2 5.5

SSW .4 .2 .6 2.T

SW I .0 1.0 .2 2.2 3.7

WSW 1 .7 1.2 .9 .1 3.9 4 .4

W 3.3 4.5 2.8 .2 10.9 5.2

WNW 3.2 3.3 2.0 .6 .1 9.2 5.4

Nu 1.S 2.0 .2 3.7 3.9

NNW .7 .5 .1 1.3 3.8

................................................................................................................................VARITABLE I

CALM f////// ///// ////i/ ///////I//II////I/////III///(//// / 18.3 I//

TOTALS I 32.3 31.8 15.8 1.7 .1 10O.0 3.9!

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

TOTAL NUMBER OF OBSERVATIORS: 915

GLOBAL CLIMATOLOGY BRANCH PERLENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS wIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZScHE AAF CA PERIOD OF RECORD: 16-85MONTH: OCT HOURS(LST): 1200-1400

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

DIRECTION 1-3 4-6 7-10 11-16 17-21 ZZ-27 28-33 34-40 41-47 48-55 GE 56 TCIAL MEANIDEGEFS) % WIND

...................................................................................................................................N .2 .2 .1 .6 4.0

NNE .5 .5 .2 1.2 4.5

NE .4 .6 1.0 3.5

ENE .6 .4 .1 1.1 4.0

E .4 1.0 1.4 3.6

ESE .1 .9 .5 .1 1.6 6.5

SE .1 .2 .5 .9 7.0

SSE .2 .2 3.0

SSW .1 .1 2.0

SW .4 .2 .1 .1 .9 8.0

WSW .4 1.7 .9 .1 3.1 5.9

K 1.7 12.8 23.5 4.8 42.8 7.8

WNW 2.1 9.7 17.0 3.9 .2 .1 33.1 7.7

NW .T 3.2 3.4 .6 .2 8.2 7.0

NNW IS .2 ,Q 5.6

...............................................................................................................................VARIZARLEI

CALM p//iIIIIniII ////i iII //I/I/// /(// / , / /3 /I/i

TOTALS 8.1 31.7 46.7 9.7 .6 .1 100.0 7.1

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

TOTAL NUMEER OF OBSERVATIONS: P13

GLOBAL CLIMATOLOGY BRANCH PEPCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINU SfEEUUSAFETA C FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: OCT HOURSILSI: ISGO-17GO

I UIND SPEED IN XNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-S5 BE 56 TCTAL MEAN(OEGOEES) 1 W.INDU

N j .. 1 2.0

NNF I .3 .3 2.5

NE I .1 .1 .3 5.5

ENE I

E j .1 .1 .3 4.0

ESE

SE

S I..1 11.0

SSWd I1 .1 .3 C.5

SW I . .1 .3 .3 .1 1.0 10.3

WSW 1.') 4.5 3.5 .7 9.7 6.4

W 3.3 21.0 26.4 4.2 54.9 7.1

IIN .9 6.1 11.9 4.6 .1 21.4 8.4

NW I 1.6 1.9 2.2 .9 6.5 6.7

NNW I 1 .7 .3 1.7 S. 3

VARIAPLEI

TOTALS I 7.8 34.6 44.6 11.0 .3 11;0.0 7.2

TOTAL NLIMEER OF OBSERVATIONS: 690

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEJUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: OCT HOURS(LST): ISCO-2000

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

| WIND 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 TLTAL MEAN(DEGREESI I W WINU

..............................................................................................................................N .6 .6 2.7

NNE .2 .2 2.0

NE .2 .2 1.0

ENE

E

FSE .2 .2 4.0

SE .6 .6 1.7

SSE .2 *2 3.0

S 1,1 .6 .2 1.9 3.6

SSW 2.8 1.3 1.1 .2 5.5 4.6

SW 5.5 4.9 1.1 11.6 3.9

WSW 5.3 9.9 3.4 .8 19.4 5.n

W 9.1 12.3 3.6 .4 25.4 4.8

WNW 2.5 3.2 1.3 .4 .2 7.6 5.8

NW 1.7 1.5 .9 .6 4.7 5.8

NNW .6 .2 ,F 4.3

VARIABLE I

CALM 1///d///./ /I// // //// /./.// / / / j// // 21.3 lI/lll

TOTALS I 30.4 34.0 12.0 2.3 .2 luD. 3.6

TOTAL NUMCLR OF OBSERVATIONS: 527

Op1

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION IERSUS WIND SIEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-A5MONTH: OCT HOURSILSTI: 21G0-23CO

I WIND SPEED IN KNOTSDIRECTION 1 1-3 4-6 1-10 11-16 17-21 22-27 24-33 34-40 41-47 44-SS GE 56 TLTAL MEANtDEGPEES) I % WINU

N I .3 .3 2.0

NNE I .6 .6 2.0

NE I .6 .6 2.0

ENE I .3 .3 5.0

E I .4 1.4 2.2 3.4

ESE .6 .3 .4 2.7

S E I .9 .6 1 .4 3.2

SSE I 1.4 1 .4 1. 4

S 2.2 .3 .3 2.8 2.7

SSW 3.6 1.4 .6 .3 5.8 3.4

sw I 4.1 7.2 2.4 14.1 4.5

WSW 3.3 5.2 1.7 .3 10.5 4.S

I 5.2 5.0 2.5 12.7 4. 3

WNW I 1.9 1.4 .6 1. 1 5.2 t .7

NW 1.1 .3 1.4 3.6

NNW I

VARIAPLEI

CALM II/III//I/iIIIII/IiIIIIIII//i//////////I///I/ 31 I//

TOTALS I 26.4 22.7 4.4 1.7 100.0 z.5

TOTAL NUMVER OF OBSERVATIONS: 162

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHC AAF CA PERIOD OF RECORD: 76-85MONTH: OCT HOURS(LSTI: ALL

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

I WIND SPEED IN KNOTSDIPECTION I 1-3 4-6 7-11 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 ICTAL MEAN(DEGPEES) I I WIND

...................................................................................................................................N .6 .2 .1 .8 3.2

NNE .6 .3 .1 .9 3.3

NE 1.2 .4 .1 1.7 3.1

ENE 1.1 .7 .1 1.9 3.3

E 3.3 3.4 1.4 .1 8.2 4.4

ESE 2.0 Z.8 1.2 .1 6.2 4.8

SE .7 .5 .3 .1 1.6 4.8

5SE .4 .1 .1 .5 2-

S .4 .1 .1 .0 .6 3.6

SSW 1.1 .4 .2 .1 1.8 3.8

Sw 1.8 1.7 .6 .1 .1 4.2 4 .4

WSW 1.8 3.4 1.6 .3 7.1 5.3

w 3.8 9.5 10.8 1.8 26.0 6.6

WNW 2.0 4.4 6.3 1.9 .1 .0 14.7 7.3

NW 1.1 1.6 1.3 .4 .1 4.4 6.0

NNW .3 .3 .1 .0 .9 4.4

................................................................................................................................VARIARLC

CAL- 1 ///////// ////////// / /// /////////// // 8.5 /I1

TOTAL' 22.1 3L.O 24.3 4.8 .2 .0 1;O.O 4.7

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

TOTAL NUMPER OF OBSERVATION. : i949

OBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEED

.AFETAC FROM HOURLY OBSERVATIONS

:R WEATHER SERVICE/MAC

'ATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURS(LST): O0-O0O

WIND SPEED IN KNOTS

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

IDEGE!S) % WINU

N

NNE .6 .6 5.7

NE 1.1 .7 1.9 3.1

ENE 3.4 2.2 .2 5.4 3.5

E 9.9 12.1 5.8 .4 28.2 4.A

ESE 7.1 9.3 2.6 .4 19.4 4.6

SE 3.2 2.2 1.1 .6 7.1 4.7

SSE .9 .4 1.3 2.4

S .2 .2 4.0

SS6 .9 .9 1.8

SW 1 .1 .2 .2 1.5 3.0

WSW .9 .6 1.5 3.4

.7 .4 .2 1.3 5.6

WNW .2 .4 .4 .9 10.6

NW .6 .4 .2 1.1 3.8

tNB .2 .2 .0

VARIAPLEI

CALM 2/i /II/I/. /I / // //////// 28.2 ////

TOTALS I 30.0 29.9 9.9 1.5 .6 100.0 3.2

OTAL NUM!ER OF OBSERVATIONS: '36

SAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDFET AC FROM HOURLY OBSERVATIONS

WEATHER SERVICE/MAC

TION NUMBLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURS(LST): 09ZJO-110O


DIRECTION I 1-3 4-6 7-10 11-16 I-21 22-Z7 28-33 34-40 41-47 48-55 GE 56 TCTAL MEAN(DEGREES) I % WIND

N . .8 1.3 3.4

NNE .8 .8 2.3

NE 3.2 .7 3.9 2.6

ENE 1.6 1.7 .5 3.9 4.2

E 6.8 10.9 7.4 .4 25.5 5.1

FSE S.5 14.6 9.5 .4 30.1 5.6

SE 2.0 3.2 1.9 1.1 8.2 6.3

SSE .4 .4 4.0

S .4 .1 .5 3.3

SSW .1 1.1 1.2 4.8

S I .3 .4 .3 .3 1.2 7.3

WSW .7 .4 .3 1.3 4.4

W 1.6 2.4 .4 .1 4.6 4.6

WNW .9 1.6 .3 .3 3.1 5.2

NW 1.1 .7 .5 2.3 4.6

NNW . .1 .1 .5 4.5

............ ' . ... . . . . . . . . . . . . . .. . . . . . . . . . . . . ....................... e .* .. . ° e . ... . .VARIABLE I

TOTALS I 25.9 39.1 21.3 2.4 .1 IUO.0 4.6

TAL NUMSER OF OBSERVATIONS: 74S

L_.

OBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEU

.AFETAC FROM HOURLY OBSERVATIONS

R WEATHER SERVICE/MAC

ATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHL AAF CA PERIOD OF RECORD: 76-85

MONTH: NOV HOURS(LSTI: 12Z0-14CO

....................................................................................................................................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 IIAL MEAN

(DEGPEES) I .................................

,- .... ......- .... ..... ..... ...... ..... ..... ...... ..... ..... ...... ..... ..... 2.4 2.9

N 1.6 .A

NNF 1.5 .7 .5 2.7 4.1

Nt 3.2 2.2 .5 5.9 3.8

ENE 2.7 3.0 .3 S.9 3.7

I 2.7 4.3 1.3 .1 8.5 q.7

ESF .8 3.4 1.3 .3 5.8 5.5

SE .8 .5 .9 1.2 3.5 8.1

5SF ,. .3 .4 11.7

S .3 .7 4.8

SW I .1 .1 .3 4.0

SW .1 .9 .1 .7 1.9 8.6

WSW .3 .9 1.2 .3 2.7 7.4

k 3.0 V.9 8.3 1.5 21.6 6.4

WNW 2.3 10.3 6.5 .4 .1 19.6 5.9

NU 1.7 3.6 2.3 .3 7.9 5.8

NNW .4 .9 .1 1.5 4.2

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

VAIALE I8.7

CALM hIlO.D 1

TOTAL' I 21.5 40.7 23.9 S.0 .5

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

OTAL NUMFLR OF OBSERVATIONS: 744

AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECl ION VERSUS WIND Si LEDETAC FROM HOURLY OBSERVATIONSWEATHER SERVICE/IMAC

ION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURS(LSTI: 15CC-17O

WINO SPEED IN KNOTSIRECI UN I 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 46-55 GE 56 TCTAL MEANDEGPEES) I I WIND..................................................................................................................................

N 1.2 .1 .1 1.5 3.3

NNE 1.2 .7 .1 2.0 3.8

NE 1.0 1.5 .1 2.6 ".1

IE .4 .4 .1 1.1 4.3

E .3 .3 .1 .7 4.4

ESE .4 .6 .7 .3 2.0 6.4

SE .4 1.2 .4 2.1 t.3

SSE .3 .1 .1 .6 4.0

S .3 .1 .3 .7 4.2

SSW .1 .3 .1 .6 5.0

Sw .7 1.3 .9 .6 3.5 6.4

WSW 1.9 4.9 3.2 .7 12.8 5.9

W 7.8 19.2 11.8 .6 39.4 5.4

WNW 3.3 8.6 5.7 .9 .1 19.6 6.0

W 1.2 3.2 1.5 .4 6.2 5.9

NNW .3 .9 .3 1.5 4.7

...............................................................................................................................VARIARLE

CAL- I / 6.2 4/4l

TOTALS 20.6 42.4 26.3 4.2 1 IJ O. 5.3

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

k1 NURSEiR OF OBSERVATIONS: 688

AD-A174 4.14 f~~Ti!SN IA AIOIAL1LE

UK CAV llMA ME' AJj AL /

UNCLASSIFIED A AV~DSP Ijo-c~I CT .

1-0 128 ow-

1 .22:

1111 -

A _1_6

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


STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: NOV HOURSILST): 18GO-20OU

WIND SPEED IN KNOTSDIRECTION I 1-3 4-b 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 36 TETAL MEAN(OEGOEFS) I I WINI

................................................................................................................................N .9 .2 1.1 3.5

NNE 1.1 .8 1.9 3.3

NE 1.1 .2 1.3 3.0

ENE 1.5 .2 1.7 2.7

E f 1.5 .2 .2 1.9 2.8

ESE .9 .4 1.1 .4 2.9 6.7

SE .9 .4 .4 .9 2.6 7.2

SSE .8 .2 .9 2.6

S 1.3 1.1 .4 2.8 3.9

SSW 3.0 .6 3.6 2-.5

SW 5.3 4.9 1.3 .2 11.7 4.9

WSW 4.9 4.0 1.9 10.7 4.2

w 4.1 2.3 .2 .9 7.5 4.1

WNW 1.3 1.3 .9 .2 3.8 5.0

NW 2.1 .6 .6 .2 .2 3.6 5.2

NNW .6 .6 1.1 2.e

VARIABLE

CALM I///40.9 II

TOTALS 31.5 17.5 7.2 2.8 .2 100.0 2.5

TOTAL NUMRER OF OBSERVATIONS: 531

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION 14UMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD Or RECORD: 76-85MONTH: NOV HOURS(LSTI: 21J0-2300

WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 2Z-Z7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN(OEGPEFSI x S WINE

.................... ......... 1...............................................................................................

N I .2 .2 .4 3.0

NNE .7 .2 .9 2.5

NE 2.0 .4 2.4 2.6

ENE 1.3 .9 2.2 3.1

E 3.3 1.5 4.8 3.1

ESE 3.1 1.3 .4 .7 S.5 4.6

SE 2.4 1.1 .7 .2 4.4 4.1

SSE .7 .4 1.1 3.0

S 1.1 .4 1.S 2.9

SSW 2.2 .4 .4 3.1 3.2

SW 3.5 3.1 .9 7.4 3.9

WSW 2.0 1.3 1.1 4.4 4.6

W 2.4 .7 .9 3.9 4.1

WNW 1.5 .2 1.7 2.6

NW 1.1 .2 .7 .2 2.2 5.4

NNW .4 .4 2.5

VARIA9LE

TOTALS 27.7 12.4 5.0 1.1 100.0 1.7


-I_

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WINU StLEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NIUMBLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURS(LST): ALL

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

DIRECTION 1-3 4-6 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TGTAL MEAN(DEGREES) x WINU

............................................................................................................................N .8 .4 .1 1.2 3.2

NNE .9 .5 .1 1.5 3.7

NF 2.1 1.n .1 3.2 3.3

ENE 1.8 1.5 .2 .0 3.5 3.7

E 4.0 5.2 2.6 .2 11.9 4.8

ESE 2.9 5.3 2.9 .4 11.5 5.3

SE 1.5 1.3 1.1 .8 4.7 6.2

SSE 1 .2 1 .1 7 4.0

$ .5 .3 .2 .1 1.0 4.5

SSW .9 .4 .1 1.4 3.

SW 1.6 1.6 .6 .3 4.1 4.9

WSW 1.6 2.0 1.3 .2 5.1 5.2

W 3.4 6.3 4.1 .5 .1 14.3 5.5

WNW 1.7 4.3 2.5 .3 .1 .0 8.9 5.8

N6 1.3 1.6 1.0 .2 .0 4.Z 5.5

NNW .3 .5 .1 .9 4.9

VARIAPLF |

CALM //////// / /////////,/////// 21.7 ///I//

TOTALS I 25.T 32.3 17.1 3.0 .2 .0 100.0 4.0

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

TOTAL NUMBER OF OBSERVATIONSt 3732

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

STATION NUMBER: 724916 STATION NAME: FT ORDIFRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURSCLSTI: 0600-0800

WIND SPEED IN KNOTSDIRECTIZN 9 1-3 4-6 1-10 I-1G 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TETAL MEANIUE4REES) I WINO

N I .2 .2 .4 5.0

NfNE

NE .9 .2 .4 1.5 3.6

ENE 2.6 2.3 .8 5.7 4.0

E 7.9 16.2 8.3 .8 33.2 5.2

ESE 5.8 7.2 4.3 1.3 1s.7 S.5

SE 1.3 2.8 .8 .9 5.8 6.0

SSE .4 .2 .4 .9 4.2

S .4 .2 .6 3.0

SSW .4 .2 .2 .8 4.5

SW ,. .6 .2 .2 1.5 6.0

WSW 1.1 .4 1.5 2.8

w .9 .4 1.3 4.1

WNW .2 .9 .4 .2 1.7 6.9

NW .2 .4 .4 .2 1.1 7.0

NNW .. ,6 .8 7.8

VaR IATLEI

CAL- I/i///I/////j///II///I///////I//f/////I///Ij 24.5 iI/

TOTALS 23.2 31.5 17.0 3.6 .2 100.0 3.9


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

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURStLSTI: 0900-1100

.. ................... ... ............... ........ ... '. NOTS. ... ....... ...... ....... .....I WINO SPEED IN KNOTS

DIRECTION 1-3 4-6 7-10 11-16 17-21 22-27 Z8-33 34-40 41-47 8-55 GE S6 T(TAL MEANIDEGREES) I WIU

N .3 .3 .3 .4 7.C

NNE .7 .1 . 2.2

NE .7 .3 .3 1.2 3.9

ENE I 2.0 1.3 1.1 .1 4.5 4.4

E 7.3 11.3 12.0 .7 31.3 5.8

ESE 5.7 11.5 11.2 1.6 .1 30.1 6.Z

SE 1.5 2.4 1.3 .9 .7 6.7 7.6

ss5 .3 .8 .1 1.2 4.4

S .7 .7 Z-2

SSW .. .4 .3 .9 8.9

SW .4 .3 -1 .5 1.3 7.4

WSW .1 .5 .1 .4 1.2 10.6

W .9 .8 .4 .1 2.2 4.9

WNW .5 .9 .5 .9 2.9 7.4

NW .4 .3 .4 .3 1.3 6.7

NNW .1 .5 .5 .1 1.3 7.1

VARIARLE I

CALP / 11.6 IiI/II

TOTALS I 21.4 31.3 28.6 5.9 1.2 1 O.0 5.4


GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SfEEUUSAFETAC FROM HOURLY OBSERVATIONSAIR EATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECOOO: 76-65MONTH: DEC HOURSCLSTI: 1200-1400... .. .. .. .. ".. .".. .. ... .. .'.. .. ... .'.. .. . ... ... .....T..S. .. ... ..... ....... ............

I WIND SPEED IN KNOTSDIRECITON I 1-3 4-6 ]-10 11-16 17-21 22-27 28-33 3-N40 41-47 48-55 GE 56 TOTAL MEAN(DEGREES) % B WING

N 1.9 1.3 .5 . 4.4 5.3

NNF 1.9 .5 .3 2.? 3.3

NE 1.9 2.4 1.6 5.q 5.0

ENE 2.8 3.7 1.6 .1 8.3 5.1

E 4.3 6.5 4.3 .1 15.2 5.0

ESE 3.7 .5 2.4 1.5 .1 13.2 S.9

ST .9 Z.0 .9 .9 .3 .1 5.2 6.3

SSE .1 .3 .4 4.0

S .1 .1 6.0

SSW .1 .1 24.0

SW .1 .4 .4 .3 1.2 9.1

WSW .4 .s .1 .5 .1 1.7 6.2

4 2.1 3.5 2.7 .7 8.9 5.9

WNW 3.1 5.7 2.7 .8 .1 12.4 5.7

NW 2.3 2.8 1.5 .4 .3 7.2 5.7

NNW .9 1.3 .3 .4 2.9 5.5

VARIABLE

CALM I /////////III/I n.0 /41////II/I///IIIiI////II//I////I///////////I/U////j/////////// 1T,0 /ll/ll

TOTAILS 26.4 36.7 19.2 6.1 1.2 .3 100.0 5.1


GLObAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SILEDuSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMOER: 724916 STATION NAME: FT ORO/FRITZScHE AAF CA PERIOD Or RECORD: 76-85MONTH: DEC HOURSILSYP: 15.0-170D

I WIND SPEED IN KNOTSDIRECTICN I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 4A-55 GE 56 TCTAL MEAN(DEGP'EFS) I Z .INI,

N I 1.8 1.4 .5 .8 4.5 5.5

NNF I 1.5 1.5 .8 .2 4.0 4.9

NE I 2.8 3.4 2.5 4.6 5.0

ENE I .9 1.7 .6 3 .2 4.5

E 1.5 .5 .2 2.2 3.1

FSE I 1.5 .6 .9 .A 3.8 6.0

SE I .5 .2 .8 .a .3 .3 2.8 11.6

ssF .2 .2 3.0

S I.2 .2 .3 6.1)

SSW I .2 .2 .5 .2 .9 7.7

SW I ~ .8 .3 1 .5 5.6

WSW 2.0 1.4 1.8 .5 .2 5.8 6.2

w 5.7 12.2 2.6 .6 .2 21.2 4.R

WNW 3.2 8.0 3.7 1.2 .2 16.3 5.7

NW I 2.9 3.7 2.6 .6 .2 10.0 5.8

NN I 1.2 .9 .2 .22.5 4. 3

VAN TAPLE

CALM I/III/IiI/I///iI~/Ii/I/IU////IIII//I///////I 12.2 /1////

TOYTALS 26.5 3c.5 17.7 6.0 .8 .5 1UO.O 4.8


F

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SiEEDUSAFETA C FROM HOURLY OBSERVATIONSAl R WEATHER SERVICE/MA


MONTH: DEC HOURS(LST): 1800-2000

............................................................................................................................| 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(DEGECES) I % WINU

h .5 .5 8 3 2.1 6.4

NNE 2.1 1.6 .5 .. Z 3.9

N I 2.4 2.4 .8 5.5 4.0

ENE 2.6 1.8 4.5 3.3

C .8 2.6 .3 3.7 4.2

FSE 1.3 .5 .5 .3 2.6 6.6

SE .3 .8 1.1 7.0

SSE 1.1 .3 1.3 3.2

S 1.6 .3 1.8 2-3

SSW 1.8 .3 2.1 2.5

SW 5.5 3.2 .3 9.0 3.1

WSW 4.0 2.1 .5 6.6 3.S

w 4.2 1.3 5.5 2.4

WNW .8 1.3 .5 .3 2.9 4.9

NW .5 1.8 1.8 .5 4.7 6.8

NNW .3 .3 .5 4.0

......................................................................................................................................VAR IABLE I

TOTALS I 29.8 20.1 6.6 1.6 .3 100.0 2.3

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


6LOBAL CLIPAOLOGY BhANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEUUSAFETAC FROM HOURLY OBSERVATIONSAIR WFAIHrR SERVICEIMAC

STATION NUMBER: 724916 STAIION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURSILSTI: 21,0-23UD

WINO SPEED IN KNOTSUIPEC3 04 1-3 4-E 1-11 11-1b 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TfTAL MEANIDEGPEFSI I h hIUol~o,, ., ...eo o....... .. . ..~e .. .~e., .. . .. . . .. . .. ....oo l o, e t e o.*.... .. ,.... ... . ..... ...,ol ..... ... .,. ......

N 6 .3 9. 1. 10.0

-jNE 1.5 .3 1.8 2.7

NE 3.9 .3 4.7 2,1

ENE 1.8 1.2 .3 3.3 4.0

E 6.6 5.1 1.2 1Z.9 4.

ESC I .7 2.7 .6 .3 6.3 4.6

SE .6 .3 .6 .9 2.4 6.4

SSE 1.5 .3 .3 2.1 2.9

S .9 .6 1.5 2.6

SS6 2.1 .6 2.7 2.4

Sh 3.0 .3 .9 4.2 3.8

WSW 1.5 2.4 3.9 3.4

W 1.8 .3 2.1 2.4

WNW 1.2 .3 .3 1.8 2.8

NW .6 .6 .3 1.5 5.3

NNW .9 .6 .6 2.1 5.

.. . .. . .. . . .. . .. . . .. . .. . .. . . .. . . ............-......................o......... ' ... .......VAR IABLE

CALM 45.3 111/f11f

TOTALS 30.6 16.5 5.4 2.1 luO.O 2.2

TOTAL NUM8LR OF DYSERVATIONS: 33

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINL: 5F EEOUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBLR: 124916 STATION NAME: FT OROIFRITZSCHE AAF CA PEqIOD OF RECORD: 76-85MONTH: DEC HOURSILST): ALL

WIND SPEED IN 9NOTS

OIRECTTON I 1-3 4-6 7-10 11-1b 17-21 22-27 28-33 34-40 41-47 48-55 GE 5b TOTAL MEAN

(DEGREE5) 9 WINU

N I .9 .7 .4 5 2.5 5.9

NNE 1.2 .6 .3 .0 2.2 3.8

NE 1.9 1.6 1.0 4.5 4.5

ENE 2.1 2.1 .9 .1 5.1 4.5

E 4.3 7.4 5.1 .3 17.6 5.2

USE 3.7 5.3 3.9 1.1 .1 14.2 5.9

SE .9 1.5 .9 .8 .3 .1 4.4 7.9

SSE .4 .3 .1 .9 3.7

S .5 .2 .0 .3 2.9

SSW .5 .2 .2 .1 °0 1.n 5.5

SW 1.2 .8 .3 .2 .1 .0 2.5 4.9

WSW 1.3 1.0 .4 .2 .1 3.1 5.6

I 2.6 3.4 1.2 .3 .0 T.6 4.8

WNW 1.6 3.3 1.6 .7 .1 7.3 5.8

NW 1.3 1.7 I.z .4 .1 .0 4.6 5.9

INW .6 .7 .4 .1 1.9 5.5

VARTAFLE

CALM /// / / / // // // 20.3 I//

TOTAL! 25.6 3C.8 17.9 4.8 .7 .2 110.0 4.3

TOTAL NUMEER OF OBSERVATIONS: 3399

GLObAL CL.IATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SIEEOUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER; 724916 STATION NAME: FT ORDJFRIIZSCHE AAF CA PERIOD OF RECORD: 76-86MONTH: ALL HOURS(LSTI: ALL

I WIND SPEED IN KNOTSDIPECTIIN 1 1-3 4-b 1-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCIAL VEANIDEGPEFS) I % WINU

I .6 .4 .1 .0 1.1 4.0

NNE .6 .3 .1 .0 1.0 3.7

NE .9 .5 .2 .0 1.7 3.7

ENE 1.0 .7 .2 .0 1.9 3.8

I 2.2 2.8 1.4 .1 6.5 4.7

ESE 1.8 2.4 5.5 .4 .0 .0 6.1 S.6

! .7 .8 .7 .4 .1 .0 2.6 7.0

SSE .3 .2 .1 .0 .0 .0 .6 9.1

S . .2 .1 .0 .0 .7 °f

SSW .6 .4 .2 .1 .3 .0 1.4 u.7

56 1.2 1.3 1.0 .4 0 .0 4.0 b.0

WS I 1.4 Z.7 3.3 1.5 .0 9.0 7.'

1 3.7 ?17 11.7 4.8 .1 .0 2T.6 7.6

WNW 1.6 4.3 6.1 2.7 .2 .0 .0 15.0 7.9

NW 1.0 1.7 1.4 .5 .1 .0 4.P f.5

NNW ,S .5 .2 .1 .0 .0 1.2 4.9

VARIAPLE I

CALM 14 / / / / // / // / / I.9 IfIIII

TOTALS 18.0 26.9 28.2 11.2 .6 .1 .7 1u0.O 5.7

TOTAL NUMPER Of OBSERVATIONS: 46799

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEE3USAFETAC FROM HOURLY OBSERVATIONSAIR WEATHFR SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-86

MINTH: ALL HOURS(LST): ALL................................ ::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ..................................CEILINGS 200 To 1400 FEET WITH VISIAILTIES 1/2 MILE OR MORE

AND/ORCEILINGS 2C0 FEET OR MORE WITH VISIBILTIES 112 TO 2-I/2 MILES

I WIND SPEED IN NO3SDIPECTION 1I-3 -6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TCTAL MEANI(DGNEFS) I % WINO

....... ....... ...... :; ...... Z;...... :; .......................................................................i;........;.......

I . .1 .0.9 2.S

NNE .4 .6 2.7

NE .4 .2 .6 3.0

ENE .5 .2 .c .7 2.9

E 1.2 .8 .2 2.1 3.5

FSE 1.0 L.0 .2 .1 .0 2.4 4.4

SE .6 .3 .1 .0 1.1 3.9

SSF .3 .1 .4 2.5

S .4 .1 .4 2.5

ss. .5 .3 .1 .0 . 3 1.6

S6 1.0 1.2 .8 .2 .0 . 3.3 5.5

WSW 2.3 4.3 3.9 1.2 .0 11.6 6.4

S 6.7 12.T 14.9 4.1 37.4 6.f

WJ 6 2.7 5.4 6.2 1.5 .0 15.9 6.6

N. 1.4 1.2 .7 .2 3.4 4.8

NN' .7 .4 .0 1.1 3.7

VAR1AnLEI

TCTAL' 19.7 28.5 7.1 7.2 .1 .0 0'J0.O 1.I

IOTAL NUMFLE OF OPSERVAIIONS: 64i 1

OPERATING LOCATION "A"USAFETAC, ASHEVILLE NC CEILING VERSUS VISIBILITY

PART 3

This summary is a bivariate percentage frequency distribution by classes of ceiling from zero to equal toor greater than 20,000 feet and as a separate class "no ceiling," versus visibility in 16 classes fromzero to equal to or greater than 10 miles. Data are derived from hourly observations, and the tablesare presented by month and available 3-hour groups.

Due to the cumulative nature of this presentation, it is possible to determine the percentage frequencyof occurrence for any given limit of ceiling or visibility separately, or in combination of ceiling andvisibility. The totals progress to the right and downward. Ceiling may be determined independently byreferring to totals in the extreme right hand column. Also, visibility may be determined independentlyby reference to the horizontal row of totals at the bottom of the page. The percentage frequency forwhich the station was meeting or exceeding any given set of minima may be determined from the figure atthe intersection of the appropriate ceiling column and visibility row.

Beginning in January 1968, METAR stations report visibilities to 6 miles and then greater than 6 miles.Thus, for METAR stations, the category equal to or greater than 10 miles is not printed in the tables#For most Airwayi stations, visibilities of greater than 7 miles were not reported for part of the periodof record. Therefore, the 10 mi visibility category should be used with great caution.

For overseas civilian stations reporting "CAVOK", all ceilings greater than 5,000 feet are suppressedinto the 5,000 foot ceiling class.

NOTE: 1. For METAR stations beginning Jan 68 and Synoptic reporting stations, only the highest order of at-mospheric phenomena was reported, recorded on the AWS Forms 10a, and transmitted longline. Beginning Jan 70,METAR stations recorded all atmospheric phenomena on the AWS Form 10a, but transmitted longline only thehighest order. For eample, if the observation consisted of rain, fog and smoke, only the rain was trans-mitted longline. Our data base, as a result, contains only rain for that observation. Because of thesereporting procedures the summaries for METAR and Synoptic reporting stations are highly questionable in thehourly summaries. This primarily effects the obstruction to vision columns but may also have minor effectson the precipitation columns.

2. When the value of ".0" appears in the summaries, it represent one or more occurrences amountingto less than .05 percent.

GLO.AL CLIMA7OLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBLITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STAI1ON NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURS(LSI|: 0600-0800

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE bE

FELT I to 6 5 4 3 2 212 2 1 1/2 1 1/4 1 3/4 518 1/2 516 114 0

NO CEIL I 45.5 52.1 53.9 54.7 55.S 55.6 56.5 56.6 56.6 56.8 56.9 56.9 56.9 56.9 57.1 5..1

rE E001 50.3 57.4 59.2 61.0 60.8 61.0 61.8 61.9 61.9 62.1 62.3 62.3 62.3 62.3 62.9 63.4.F 181O01 50.5 58.1 59.8 6C.6 61.5 61.6 62.4 62.b b2.6 62.7 62.9 62.9 62.9 62.9 63.1 64.0iE 16C00 50.6 58.Z 60.0 6C.8 61.6 61.8 62.6 62.7 62.7 62.9 63.1 63.1 63.1 63.1 63.2 64.2E 140OCI 51.3 58.9 60.6 61.5 62.3 62.4 63.2 63.4 b3.4 63.5 63.7 63.7 63.7 63.7 63.9 64.6

bE l2100 52.1 60.0 61.b 62.6 63.4 63.5 64.4 64.5 64.5 64.7 64.8 64.8 64.8 64.8 bS.O 66.3

,F 10CO01 52.9 61.1 63.2 64.2 65.2 65.3 66.1 66.3 66.3 66,5 66.6 66.6 66.6 66.6 66.8 68.1E 91C0 53.1 62.1 64.2 65.2 66.1 66.3 67.1 67.3 67.3 67.4 67.6 67.6 67.6 67.6 67.7 69..

( F 8"001 54.C 63.1 65.3 66.3 67.3 67.4 68.2 68.4 68.4 68.5 68.7 68.7 68.7 68.7 68.9 70.2..E 77001 54.5 63.5 65.8 66.8 67.7 67.9 68.7 68.9 68.9 69.0 69.2 69.2 69.2 69.2 69.4 70.6,E 6SOI 56.6 66.1 64.5 69.5 70.5 70.6 71.5 71.6 71.6 71.8 71.9 71.9 71.9 71.9 72.1 73.4

3E 50011 58.5 68.7 71.1 72.1 73.1 73.2 74.0 74.2 74.2 74.4 74.7 74.7 74.7 74.7 74.8 76.1UE 450fl 59.4 70.2 72.6 73.5 74.7 74.8 75.6 75.8 75.8 76.0 76.3 76.3 76.3 76.3 76.5 77.7UE 4C1C1 60.6 72.1 74.5 75.6 76.8 76.9 77.7 77.9 77.9 78.1 78.4 78.4 78.4 78.4 78.5 8u.0.E 350fl 61.9 75.3 77.9 74.0 80.2 80.3 81.1 81.3 81.3 81.5 81.8 81.8 81.8 81.8 81.9 83.4GE 3001 64.3 78.7 81.5 82.6 83.9 84.0 85.0 85.2 85.2 85.3 85.6 85.6 85.6 85.6 85.8 b7.3

(,E 2500 b5.2 80.6 83.4 84.7 86.0 86.1 87.1 87.3 87.3 87.4 87.7 87.7 87.7 87.7 67.9 89.4GE 2r0CI 66.5 R2.7 85.6 87.1 88.7 88.9 90.0 90.2 90.2 90.3 90.6 90.6 90.6 9a.6 50.% 92.3GE 190C1 66.8 83.2 86.1 87.b 89.4 89.5 90.6 90.8 90.8 91.0 91.3 91.3 91.3 91.3 91.5 92.9bE 15011 67.1 84.4 87.3 88.9 91.1 91.1 92.3 92.4 92.4 92.6 92.9 92.9 92.9 92.9 93.1 94.56E 12001 67.3 85.3 88.2 9C.0 92.1 92.3 93.5 93.7 93.7 93.9 94.2 94.2 94.2 94.2 94.4 95.8

GE 10001 67.3 85.5 88.7 9E.5 92.9 93.1 94.4 94.5 94.5 94.7 95.2 95.2 95.2 95.2 95.3 95.6UE 9001 67.3 85.6 89.C 91.0 93.5 93.7 95.0 95.2 95.2 95.3 95.8 95.8 95.8 95.8 96.0 97.4GE 8rll 67.3 85.8 89.2 91.1 93.9 94.0 95.3 95.5 95.5 95.6 96.1 96.1 96.1 96.1 96.3 97.7UE 7001 67.3 85.8 89.2 91.1 93.9 94.0 95.3 95.5 95.5 95.6 96.1 96.1 96.1 96.1 96.3 97.7.E 6G0 67.3 85.8 89.Z 91.1 93.9 94.C 95.3 95.5 95.5 95.6 96.1 96.1 96.1 96.1 96.3 97.7

I.E sori 67.3 85.8 89.2 91.1 93.9 94.0 95.3 95.5 95.5 95.6 96.1 96.1 96.1 96.1 96.3 97.7.E 41U 67.3 85.8 89.2 91.1 94.0 94.2 95.5 95.6 95.6 95.8 96.3 96.3 96.3 96.3 96.5 97.9GE TGOl 67.3 85.8 89.2 91.1 94.0 9,.2 95.5 95.6 95.6 95.8 96.5 96.5 96.5 96.5 96.6 96.1SE 20DI 67.3 85.8 89.2 91.1 94.0 94.2 95.5 95.6 95.6 Q5.8 96.5 96.5 96.8 96.8 97.1 99.711E 1001 67.3 85.8 89.2 91.1 94.0 94.2 95.5 95.b 95.6 95.8 96.5 96.5 96.8 96.8 97.3 101.0

GE rJ 67.3 85.8 89.2 91.1 94.0 94.2 95.5 95.6 95.6 95.8 96.5 96.5 96.8 96.8 97.3 100.0

TOTAL NUMRLR OF OBSERVATIONS: 620

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORDIFRITZSCHE AAF CA PEqIOD OF RECORO% 77-86MONTH: JAN HOURS(LSTI: 09C0-1100

CEIL ING VISIBILITY IN STATUTE MILES

IN I GL GE GE CE 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 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CErL I 44.0 50.5 52.G 52.6 52.9 52.9 53.0 53.0 53.0 53.0 53.0 33.0 53.1 53.1 53.3 53.3

GE CC001 50.3 57.4 58.9 59.6 59.8 59.8 59.9 59.9 59.9 59.9 59.9 59.9 60.1 60.1 60.2 6C.2GE 18WI 51.0 58.2 59.7 6E.3 60.6 60.6 60.7 60.7 60.7 60.7 6n.7 60.7 60.8 60.8 bl.0 61.06E 160OCI 51.1 58.3 59.8 6C.5 60.7 60.7 60.8 60.8 60.8 60.8 69.8 60.8 61.0 61.0 61.1 61.1.E 140rCj 52.4 59.8 61.3 62.0 62.2 62.2 62.3 62.3 62.3 62.3 62.3 62.3 62.5 62.5 62.6 62.66E 120001 53.0 60.5 62.1 62.7 63.0 63.0 63.1 63.1 63.1 63.1 63.1 63.1 63.2 63.2 63.4 63.4

GE 100001 57.2 64.7 66.5 67.1 67.4 67.4 67.5 67.5 67.5 67.5 67.5 67.5 67.6 67.6 67.8 67.8GE 9VOCI 57.7 65.2 67.C 61.6 67.9 67.9 68.0 68.0 68.0 68.0 69.0 68.0 68.1 68.1 68.3 66.3GE 80ua0 59.9 68.4 70.3 7C.9 71.2 71.2 71.3 71.3 71.3 71.3 71.3 71.3 71.4 71.4 71.5 71.5GE 7CO01 ol.8 69.3 71.2 71.8 72.0 72.0 72.2 72.2 72.2 72.2 72.2 72.2 72.3 72.3 72.4 72.4

1 E 600CI 61.7 70.3 72.3 72.9 73.2 73.2 73.3 73.3 73.3 73.3 73.3 73.3 73.4 73.4 73.6 73.6

GE S POO 63.1 72.8 74.9 75.7 75.9 75.9 76.1 76.1 76.1 76.1 76.1 76.1 76.2 76.2 76.3 76.3GE 4S0C1 63.2 73.2 75.4 76.2 76.4 76.4 76.6 76.6 76.6 76.6 76.6 76.6 76.7 76.7 76.8 76.8GE 400C1 65.0 76.1 78.3 79.2 79.5 79.5 79.6 79.6 79.6 79.6 79.6 79.6 79.7 79.7 79.8 79.8,E 35001 67.6 79.7 82.0 82.9 83.2 83.2 83.4 83.4 83.4 93.4 83.4 83.4 83.5 83.5 83.6 83.6GE 3V0001 70.3 83.9 86.4 87.4 88.0 88.0 88.2 88.2 88.2 88.2 88.2 88.2 88.3 88.3 88.4 88.4

GE 25C01 72.4 86.9 89.7 9C.7 91.3 91.3 91.4 91.4 91.4 91.4 91.4 91.4 91.6 91.6 91.7 91.7GE 2V01 74.2 88.7 91.7 92.7 93.3 93.3 93.5 93.5 93.5 93.5 93.5 93.5 93.6 93.6 93.7 93.7GE 18001 74.2 88.7 91.7 92.7 93.3 93.3 93.5 93.5 93.5 93.5 93.5 93.5 93.6 93.6 r3.7 93.7E IFO01 74.3 89.0 92.2 93.6 94.3 94.3 94.6 94.6 94.6 94.6 94.6 94.6 94.7 94.7 99.8 94.6GE 12001 74.3 89.5 92.6 94.5 95.2 95.2 95.5 95.5 95.6 95.6 95.6 95.6 95.7 95.7 95.8 95.8

GE 1001 74.3 90.2 93.5 95.2 96.1 96.1 96.6 96.6 96.7 96.7 96.7 96.7 96.9 96.9 97.0 97.0oE 90t 1 74.3 90.2 93.5 95.2 96.1 96.1 96.6 96.6 96.7 96.7 96.7 96.7 96.9 96.9 97.0 97.0bE 8001 74.3 90.3 93.6 95.3 96.2 96.2 96.7 96.9 97.0 97.0 97.0 97.0 97.1 97.1 97.2 97.2GE 7001 74.3 90.3 93.6 95.6 96.5 96.5 97.0 97.1 97.2 97.2 97.2 97.2 97.S 97.5 97.6 97.6;lE 60C 74.3 90.3 93.6 95.4 96.5 96.5 97.0 97.1 97.2 97.2 97.2 97.2 97.3 97.5 97.6 97.b

GE 5001 74.3 93.3 93.6 9E.4 96.5 96.5 97.0 97.1 97.2 97.2 97.2 97.2 97.5 97.5 97.6 97.6GE 4001 74.3 90.4 93.7 95.7 96.6 96.6 97.1 97.4 97.5 97.5 97.5 97.6 98.0 98.1 98.2 96.21. 3001 79.3 90.4 93.7 95.7 96.7 96.7 97.2 97.5 98.0 98.2 99.2 98.4 98.7 98.9 99.0 99.,.E ?U01 79.3 90.4 93.7 95.8 96.9 96.9 97.4 97.6 98.1 98.4 91.4 98.5 99.0 99.1 99.2 99.5

GE 1o00 74.3 90.4 93.7 95.o 96.9 96.9 97.4 97.6 98.1 98.4 98.4 98.5 99.1 99.2 99.4 99.9

GE Il 74.3 90.4 93.7 95.8 96.9 96.9 97.4 97.6 98.1 98.4 98.4 98.5 99.1 99.2 99.4 10G.0

TOTAL NUM P OF OBSERVATIONS: 794

6L36AL CLIMATOLOGY BRANCH PERCENTAGE FREwUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NIM3ER: 724916 STATION NAME: FT ORU/FRITZSCHE AAF CA PE1 0

0 OF RECORD: 77-86MONTH: JAN HOURS(LST): 1200-1400

CEILING VISIBILITY IN STATUTE MILESIN E 5L GE GE cE GE GE 6E GE GE GE GE GE GE GE GE .E

FEET i C 6 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 I 49.1 53.2 54.1 54.2 54.2 54.2 54.2 54.2 54.2 54.2 S4.2 54.2 54.2 54.2 54.2 54.2

uF 230001 58.2 62.9 63.9 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 64.0 o4.0 64.0SE 18P001 59.0 63.6 64.7 64.8 64.8 64.8 64.8 64.8 b4.8 64.8 64.8 64.8 64.8 64.8 b4.8 64.8sE 160001 59.1 63.8 64.8 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9CE 140001 59.9 64.5 65.5 65.7 65.7 65.7 65.7 65.7 65.? 65.7 65.7 6S.7 65.7 66.7 65.1 61.7,E 12C0C 61.3 65.9 67.0 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2

SE 100001 64.3 69.2 70.3 7C.4 70.6 70.6 70.6 70.6 70.6 70.b 71.6 70.6 70.6 73.6 7n.6 7U.o&E 900C) 65.5 70.4 71.6 71.7 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8 11.8 71.8, E 80001 67.7 74.1 75.2 75.6 76.0 76.1 76.1 76.1 76.1 76.1 76.1 76.1 16.1 76.1 76.1 76.1.F 7C001 68.1 74.6 75.7 76.1 76.5 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 7b.bUE 60001 69.1 75.7 76.9 77.2 77.7 77.9 78.0 78.0 78.0 78.0 70.0 78.0 78.0 78.0 78.0 76.J

6E SOO1 69.8 76.9 78.C 7e.4 79.0 79.1 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 19.2 79.2UE 4S101 71.4 77.6 78.9 75.2 79.9 80.0 80.1 80.1 60.1 80.1 80.1 80.1 80.1 40.1 80.1 8L.1(,E 40001 72.5 80.4 81.6 82.0 82.6 82.8 8Z.9 82.9 82.9 R2.9 82.9 82.9 82.9 82.9 82.9 8i.9',E 35C 75.5 85.0 86.3 86.7 87.3 87.4 87.5 87.5 87.5 97.5 87.5 87.5 87.5 A7.5 d7.5 87.b

UE 30001 74.5 89.2 91.1 91.4 92.5 92.6 92.7 92.7 92.7 92.7 92.7 92.7 92.7 92.7 97.7 9i.7

(,!7 25 I 79.9 91.1 93.1 93.5 94.7 94.8 95.1 95.2 95.2 95.2 95.7 95.2 95.2 95.2 S5.2 95.2,E Z00'I b-.4 92.5 94.5 94.8 96.4 96.5 96.7 96.9 9b.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9E 18001 6 .4 92.7 94.7 95.1 96.6 96.7 97.0 97.1 97.1 97.1 97.1 97.1 97.1 q7.1 97.1 97.1CGE 1 CI Bl.6 93.5 95.8 96.4 97.9 98.0 98.2 98.4 98.4 98.4 99.4 98.4 98.4 98.4 48.4 9b.4U E 12001 80.6 93.6 96.0 96.6 98.1 98.4 98.6 98.7 98.7 98.7 98.7 98.7 98.7 98.7 98.7 98.7

6 0E Ic0l 80.8 94.0 96.5 97.1 98.7 99.0 99.2 99.4 99.4 99.4 99.4 99.4 99.4 99.4 99.4 99.4LIE 90C1 80.8 94.0 96.5 97.1 98.7 99.0 99.2 99.4 99.4 99.4 99.4 99.4 99.4 99.4 19.4 98.4t ,E 800l 8.8 94.0 96.6 97.2 98.9 99.1 99.4 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5UE 7001 80.5 94.0 96.6 97.2 98.9 99.1 99.q 99.5 99.5 99.5 99.5 99.5 99.5 99.5 ;9.5 99.5GE 60CI 80.8 94.0 96.6 97.2 98.9 99.1 99.4 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5

1,E 500l 87.8 94.0 96.6 97.2 98.9 99.1 99.4 99.5 99.5 99.6 99.6 99.6 99.6 99.6 39.6 99.b.E 4001 40.9 94.2 96.9 97.5 99.1 99.4 99.6 99.7 99.7 100.0 100.0 100.0 100.0 100.0 100.0 IL.UUE 3001 80.9 94.2 96.9 97.5 99.1 99.4 99.6 99.7 99.7 10O.C 100.0 100.0 100.0 100.0 10.0 ICU.0U. 2001 80.9 94.2 96.9 97.5 99.1 99.4 99.6 99.7 99.7 100.0 100.0 100.0 100.0 100.0 100.0 10U.0GE I001 81.9 94.2 96.9 97.5 99.1 99.4 99.6 99.7 99.7 100.0 100.0 100.0 1O0.0 100.0 100.0 100.3

UE CI 80.9 94.2 96.9 97.5 99.1 99.4 99.6 99.7 99.7 100.0 i00.0 100.0 100.0 170.0 I1o.0 10.O


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOUPLY OBSERVATIONSAIR dEATHER SERVICE/MAC

srATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURS(LSTI: 15 0-1700

CEILING VISIBILIIT IN STATUTE MILES

Is N GL GE GE CE GE GE GE GE GE GE GE GE GE GE GE GEFEE1 0o b 5 4 3 2 1/2 2 1 1/2 1 1/4 1 314 5/8 1/2 5/16 1/4 0

N1 CEIL 1 11.7 54.9 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 S.1 55.1 55.1

-T0 1 57.5 62.7 63.7 6!.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7C 18C 57.6 63.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 6.1 64.1 64.1 64.1 .4.1 64.1

CE 16I0s i 57.7 63.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 64.4 o4.4 64.4,E 14-0CI 58.8 64.5 65.4 65.4 65.4 65.4 65.4 65.4 bS.4 65.4 6'.4 6S.4 65.4 65.4 05.4 6!.4SE 12!7ct b1.3 66.k. 67.2 67.2 67.2 67.2 67.Z 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2

SE 100OCI 63.4 69.1 73.3 7C.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 7L.36r 900C1 63.6 69.4 70.6 7E.6 70.6 70.6 70.6 70.6 70.6 70.6 70.6 70.6 70.6 70.6 70.6 75.b, ar'srl 66.5 73.4 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 71.1 75.1 7L.1

SE 7'00f 67.6 74.9 76.6 76.0 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6bE 61OJ 68.4 76.0 77.6 71.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6

cr 50cj 70.2 79.2 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 70.9 79.9 79.9 79.9 79.9 79."UE 4001 71.1 79.4 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81 .2 8 1.2 91.2 A1.2 81.2 81.2UE 41 01 73.6 82.1 84. 894.0 84.0 894.0 894.1 84.1 84.1 894.1 4.1 894.1 894.1 894.1 4.1 894.1

GE 37Jr1 77.0 96.3 88.5 88.6 88.8 88.8 88.9 88.9 88.9 88.9 88.9 88.9 88.9 A8.9 8.9 86.9

6E 3C01 60.1 90.0 92.4 9!.0 93.2 93.2 93.4 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6

SE 25111 81.2 91.9 94.9 95.4 95.8 95.8 95.9 96.3 96.3 96.3 96.3 96.3 96.3 96.3 96.3 96.3sE oa CJ I1.7 93.2 96.2 96.7 97.3 97.3 97.4 97.8 97.8 98.0 94.0 98.0 99.0 98.0 S8.0 96.0SE 18201 81.7 93.2 96.2 96.7 97.3 97.3 97.4 97.8 97.8 9A.0 98.0 98.0 98.0 98.0 98.0 99.U

GE 15001 81.7 93.5 96.5 97.2 97.7 97.7 97.8 98.2 98.2 99.4 99.4 98.4 98.4 98.4 98.4 98.4

sE 1251l 81.8 93.8 96.7 91.4 98.0 98.1 98.2 98.6 90.6 98.8 9R.8 99.8 98.8 98.9 98.8 96.8

"E 10r0| t1.8 94.0 97.3 9e.l 98.5 98.6 98.8 99.2 99.2 99.5 99.5 99.5 99.5 99.5 99.5 99.5E 9001 81.8 94.0 97.3 98.0 98.5 98.6 98.8 99.2 99.2 99.5 99.5 99.5 99.5 99.5 99.5 99.5

Qr 830J 61.8 94.0 97.3 98.0 98.5 98.6 98.8 99.z 99.2 99.5 99.5 99.5 99.5 99.5 99.5 99.5

6F 70 1.8 94.0 97.3 98.U 98.5 98.6 98.8 99.2 99.2 99.5 99.5 99.5 99.S 99.5 99.5 99.5

E 60C1 81.8 94.; 97.3 98.u 98.5 98.6 98.8 99.2 99.2 99.5 99.5 99.5 99.5 99.5 99.5 99.5

,E oCIJ 81.8 94.0 97.3 9 8. 99.5 98.6 98.9 49.3 99.3 49.6 94.6 99.6 99.6 49.6 39.6 99.b

E 431 81.8 94.0 97.3 98.0 98.5 98.6 98.9 99.3 99.3 99.6 99.6 99.6 99.6 99.6 J9.6 99.bUE 3Ur1 81.8 94.0 97.3 98.1 98.6 98.8 99.1 99.5 99.5 99.7 99.7 99.7 99.7 99.7 99.7 99.7

! 22JC 51.8 94.U 97.3 96.1 98.6 96.4 99.1 99.5 99.5 )9,7 9Q.7 99.9 100.0 100.0 120.O 100.0U. loci dl.8 94 . 97.3 98.1 98.6 94.8 99.1 99.5 99.5 99.7 99.7 S9.9 100.0 100.0 1L0.0 100.0

.E El 41.9 94.0 97.3 9E.1 98.6 99.9 99.1 99.5 99.5 Q9. 7 99.7 99.9 100.0 100.0 10.0 10.0

1OTAL NUMYLV OF OBSERVATIONS: 738

,LUfbAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY



STATION NUM9ER: 724916 STATION NAME: FT ORDOFR1TZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH% JAN HOURS(LST): 18L0-2000

CEILING VISIBILITY IN STATUTE MILESIN I E GE GE CE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 3 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CEIL 47.1 59.2 59.6 5S.b 59.6 59.6 59.6 59.6 59.6 59.6 59.6 59.6 S9.6 59.6 59.6 59.7

GE 200001 50.9 64.b 65.3 65.5 66.1 66.1 66.1 66.1 b6.1 66.1 66.1 66.1 66.1 66.1 66.1 6b.2.E 180001 61.1 64.8 65.5 65.7 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 o6.2 6b.4

GE 160001 51.1 64.8 65.5 65.7 66.2 66.2 66.2 66.2 66.2 66.2 66.2 6b.2 66.2 66.2 b6.2 66.4GE I4000l 51.1 65.0 65.7 65.9 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.1 66.4 66.4 66.6

6E 120001 51.1 65.0 65.7 65.9 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.4 66.6

..E 100001 53.1 67.9 68.6 68.8 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 a9.3 69.5UE 900 1 53.2 68.1 68.8 6S.0 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 b9.5 69.7GE 8UOI 55.2 70.6 71.3 71.5 72.0 72.0 72.0 72.0 12.0 02.0 72.0 72.0 72.0 72.0 72.0 72.25E 7r001 56.0 72.2 72.9 73.1 73.6 73.6 73.6 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8 74.JGE 60001 56.5 73.8 74.5 74.7 75.3 75.3 75.3 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.6

GE 5C01 57.8 75.5 76.2 76.4 76.9 76.9 76.9 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.3GE 45 C1 59.0 77.6 78.3 76.5 79.1 79.1 79.1 79.2 79.2 79. 79.2 79.2 79.2 79.2 79.2 74.4GE 40001 60.5 80.1 80.9 81.3 81.6 81.6 81.8 82.1 82.1 82.1 82.1 82.1 82.1 P2.1 82.1 82.3UE 35c00 62.8 93.8 84.5 84.7 85.2 85.2 85.4 85.7 85.7 85.7 85.7 85.7 85.7 85.7 85.7 85.9

6E 31O0 b4.1 56.5 87.2 87.4 87.9 87.9 88.1 88.4 88.4 88.4 88.4 88.4 88.4 88.4 88.4 88.6

GF 25001 05.3 89.2 90.6 91.0 92.2 92.2 92.4 92.8 92.8 92.8 97.8 92.8 92.8 92.8 92.8 93.0GE 200C1 b6.1 90.4 91.9

92.1 93.5 93.5 93.7 94.0 94.0 94.C 94.0 94.2 94.0 94.0 94.3 94-e

GE lgjrI 66.1 90.6 92.1 92.4 93.7 93.7 93.9 94.2 94.2 94.2 94.2 94.2 94.2 94.2 94.2 94.4.E 15001 65.2 91.2 92.5 93.- 94.2 94.2 94.4 94.6 94.8 94.8 94.8 94.8 94.8 94.8 94.8 94.9GE 12001 b6.4 92.4 93.9 94.4 95.7 95.7 95.8 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 9t.4

6E 10001 66.4 93.5 95.1 95.7 96.9 96.9 97.1 97.5 97.5 97.5 97.5 97.5 97.5 97.5 47.5 97.7GE 9001 66.6 94.2 95.b 96.4 97.7 97.7 97.8 98.2 98.2 98.2 94.2 98.2 98.2 96.2 98.2 96.46E 80CI 66.6 94.2 95.8 96.4 97.7 97.7 97.8 98.2 9d.2 08.2 9p.2 98.2 98.2 98.2 9A.2 98.4

GE 7001 o6.6 94. 95.8 96.4 97.7 97.7 97.8 98.2 93.2 98.2 9A.2 98.2 98.2 98.2 9s.2 98.4

GE 6001 66.6 94.4 96.0 96.6 97.8 97.8 98.0 98.4 98.4 98.4 98.4 98.4 98.4 98.4 98.4 96.6

aE 50CI 66.6 94.4 96.0 9t.b 97.8 97.8 98.0 98.4 96.4 98.4 98.4 98.4 98.4 Q8.4 9A 4 9b.bGE 4001 b6.6 94.4 96.C 96.9 97.8 97.6 98.0 98.4 98.4 98.4 94.4 98.4 98.4 08.4 ;P.4 9b..(,E 30O0 66.6 94.4 96.6 96 .b 97.8 97.8 98.0 98.q 98.4 98.7 9A.7 98.7 98.7 98.7 9P.7 9b.9

GE 2001 66.6 94.4 96.0 96.6 97.8 97.8 98.3 98.4 98.4 98.7 9R.9 99.1 99.3 99.3 99.3 100.0GE 1001 66.6 94.4 96.C 96.b 97.8 97.8 98.3 96.4 98.4 98.7 9R.9 99.1 99.3 99.3 19.3 IO.U

GE 01 66.6 94.4 96.L 96.b 97.8 97.8 98.0 98.4 98.4 9d.7 98.9 99.1 99.3 99.3 99.3 10U.4

TOTAL NUMVEQ OF OBSERVATIONS: 554

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FROM HOURLY OdSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION hAME: F7 ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURSILST): 21.0-230

IN I GL GE GE CE GE 6E GE GE 6E GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/4 58 112 5/16 1/4 0

NO CElL I 49.6 62.3 62.6 6Z.6 62.6 62.b 62.6 62.8 62.8 62.8 62.8 62.8 62.8 62.8 02.8 63.0

GF 200001 52.1 66.5 66.9 66.9 66.9 66.9 66.9 67.0 67.0 67.C 67.0 67.0 67.0 67.0 67.0 67.2GE 18C001 52.5 66.9 67.2 67.2 67.2 67.2 67.2 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.6GE 160001 52.5 66.9 67.2 61.2 67.2 67.2 67.2 61.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.6

UE 140001 52.5 66.9 67.2 67.2 67.2 67.2 67.2 67.4 67.4 67.4 67.4 67.4 67.4 67.4 b7.4 67.6

UE 120C01 52.7 67.0 67.4 61.4 67.4 67.4 67.4 67.6 67.6 67.6 67.6 67.6 67.6 67.6 b7.6 67.

GE DO0OCI 54.0 69.0 69.3 65.3 69.3 69.3 69.3 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.7GE 99001 54.0 69.0 69.3 69.3 69.3 69.3 69.3 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.73c 800 54.8 70.3 70.7 7C.7 70.7 70.7 70.7 70.9 70.9 70.9 70.9 70.9 70.9 70.9 70.9 71.1

GE 7C001 56.3 72.2 72.6 72.b 72.6 72.6 72.6 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 73.0

GE 60001 57.5 74.5 74.9 74.9 74.9 74.9 74.9 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.3

bE 5QCI 54.4 75.9 76.2 76.4 76.4 76.4 76.4 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.8GE 450C1 6J.3 78.7 79.1 7S.3 79.3 79.3 79.5 79.7 79.7 79.7 79.7 79.7 79.7 79.7 79.7 79.9

ui 4000I 63.4 83.0 83.3 83.5 83.5 83.5 83.7 83.9 83.9 83.9 83.9 83.9 83.9 83.9 83.9 84.1

GE 3E001 64.4 84.9 85.2 85.4 85.6 85.6 85.8 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.2

GE 30oo0 55.7 88.5 88.9 89.1 89.3 89.3 89.5 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.8

GE 25017 67.2 90.6 91.C 91.2 91.4 91.4 91.6 92.0 92.0 92.0 92.0 92.0 92.0 92.1 92.0 92.1GE 20001 63.0 92.0 92.3 92.5 92.7 92.7 92.9 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.5

.E 18001 6a.0 92.0 92.3 92.5 92.7 92.7 92.9 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.5

bE 15001 68.0 92.7 93.1 93.3 93.5 93.5 93.7 94.1 94.1 94.1 94.1 94.1 94.1 94.1 94.1 94.3

&E 120C1 68.0 94.6 95.C 95.4 96.0 96.0 96.2 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.7

GE 1OOCI 69.0 94.6 95.0 95.4 96.2 96.2 96.4 96.7 96.7 96.7 96.9 96.9 96.9 96.9 96.9 97.1GE 90C| 69.0 95.2 95.6 96.0 96.7 96.7 96.9 97.3 97.3 97.3 97.5 97.5 97.5 97.7 97.7 97.9

:E 8C01 .8.2 95.4 95.6 96.2 96.9 96.9 97.1 97.5 97.5 97.5 97.7 97.7 97.7 97.9 97.9 98.1

uE 701 68.7 95.4 95.8 96.2 96.9 96.9 97.1 97.5 97.5 97.5 97.7 97.7 97.7 97.9 97.9 96.1GE 6Jrl 68.2 95.4 95.8 96.2 96.9 96.9 97.1 97.5 97.5 97.5 97.7 97.7 97.7 97.9 97.9 96.1

GE 50-1 69.2 95.4 95.8 96.2 96.9 96.9 97.1 97.7 97.7 97.7 97.9 97.9 97.9 98.1 94.1 96.36F 40C0 68.2 95.4 95.6 96.2 96.9 96.9 97.1 97.7 97.7 97.9 99.1 98.1 98.1 98.3 48.3 96.5E 3001 69.2 95.4 95.8 96.2 96.9 96.9 97.3 97.9 97.9 98.1 98.3 98.3 98.3 98.5 98.5 98.7

GE 2Q01 64.2 95.4 95.8 96.2 96.9 96.9 97.3 97.9 97.9 98.3 98.5 98.5 98.5 a8.7 98.7 99.43E 10N 63.2 95.4 95.8 96.2 96.9 96.9 97.3 97.9 97.9 98.3 98.5 98.5 98.5 98.7 98.7 10i.

GE l 68.2 95.4 95.8 96.2 96.9 96.9 97.3 97.9 97.9 98.3 95.5 98.5 98.5 98.7 98.7 10.O

TOTAL NUMDLP OF OBSERVATIONS: r,2

L

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISI1LITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBLR: 724916 STATION NAME: FT ORO/FPITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN HOURS(LST): ALL

CE ILING VISISSLITY IN STATUTE MILES

IN I GE GE GE cr GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 30 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/ 1/2 5/16 1/4 0

NO CEIL I 47.5 54.8 55.7 56.u 56.2 56.2 56.3 56.4 S6.4 56.4 56.4 56.4 56.5 56.5 56.5 St.7

GZ 2000 1 53.4 61.6 62.7 6!.0 63.3 63.3 63.5 63.5 63.5 63.5 63.6 63.6 63.6 63.6 63.6 63.86E 180001 53.9 62.2 63.3 61.6 63.8 63.9 64.0 64.1 64.1 64.2 64.1 64.1 64.1 64.1 b4.2 64.4iE 161001 54.0 6.,3 63.4 63.7 64.0 64.0 64.1 64.2 64.2 64.2 64.2 64.2 64.3 64.3 64.3 64.5

GE 14[001 54.7 63.1 64.2 64.5 64.7 64.8 64.9 65.0 65.0 65.0 65.0 65.0 65.0 65.0 05.1 65.3

GE 120001 55.5 64.0 65.2 65.4 65.7 65.7 65.9 65.9 65.9 65.9 66.0 66.0 66.0 66.3 b6.0 66.3

CE 100001 5.1 66.8 68.1 68.4 68.7 68.8 68.9 69.0 69.0 69.0 69.0 69.0 69.0 69.0 t9.1 69.3GE 90001 58.5 67.4 68.7 6,.0 69.3 69.3 69.5 69.5 69.5 69.6 69.6 69.6 69.6 69.6 69.6 64.9CE 800 67.5 70.2 71.6 71.9 72.3 72.3 72.5 72.5 72.5 72.6 72.6 72.6 72.6 72.6 72.7 7Z.9

UE 7COl1 61.3 71.3 72.7 7!.0 73.4 73.4 73.6 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.8 7%.0

GE 61001 6Z.3 7Z.8 74.2 71 .b 75.0 75.0 75.2 75.3 75.3 75.3 75.3 75.3 75.4 75.4 7S.4 75.7

GE SOOC) 63.7 74.7 76.2 76.6 77.0 73.1 77.3 77.3 77.3 77.4 77.4 77.4 77.4 77.4 77.5 77.7

GE 4t0C| 64.6 76.1 77.6 78.0 78.4 78.5 78.7 78.8 78.8 78.8 78.8 78.8 78.9 78.9 79.9 79.2GE

4n001 66.5 78-9 80.4 8C.9 81.3 81.4 81.6 81.7 81.7 81.8 8.8 81.8 81.8 81.8 62.9 8s.2

UE 3- CI 68.9 82.5 84.2 84.7 85.2 85.2 85.5 85.6 85.6 85.6 85.6 85.6 85.7 85.7 65.7 8b.0

GE 3CU01 71.3 86.2 88.1 88.7 89.4 89.4 89.7 89.8 89.8 89.9 89.9 89.9 89.9 89.9 9i.0 90.3

,E 25001 72.7 88.5 90.6 91.3 92.1 92.2 92.5 92.7 92.7 92.7 91.0 92.8 92.8 91.8 92.8 93.1GE 2C0CI 73.7 90.0 92.2 92.9 93.9 93.9 94.3 94.5 94.5 94.5 94.6 94.6 94.6 Q4. 6 ;4.7 94.9uE 1po30 73.7 90.2 92.4 93.1 94.1 94.1 94.4 94.7 94.7 94.7 94.8 94.8 94.8 94.8 94.8 95.1

L, 15Gr0 73.9 90.8 93.1 93.9 95.0 95.1 95.4 95.6 95.6 95.7 95.7 95.7 95.7 95.7 95.8 96.1

GE 123nl 73.9 91.5 93.9 94.9 96.0 96.1 96.4 96.7 96.7 96.7 96.8 96.8 96.8 96.8 96.9 97.1

GE 10001 74.0 91.9 94.5 95.5 96.7 96.8 97.2 97.4 97.5 97.5 97.6 97.6 97.7 Q7.7 97.7 90.,GE 90r1 74.0 92.1 94.7 95.7 97.0 97.1 97.5 97.7 97.7 97.8 97.9 97.9 97.9 98.0 98.0 9b.3

GE 8101 74.0 92.2 94.8 95.8 97.1 97.2 97.6 97.9 97.9 98.0 98.1 98.1 98.1 98.1 98.2 98.4GE 7O01 74.0 92.2 94.8 95.8 97.1 97.2 97.7 97.9 97.9 98.0 98.1 98.1 98.2 98.Z 98.2 9o.5GE 60C1 74.0 92.2 94.8 95.9 97.2 97.3 97.7 97.9 98.0 98.0 94.1 98.1 98.2 98.2 98.3 96.5

GE SON| 74.0 92.2 94.8 95.9 97.2 97.3 97.7 98.0 98.0 98.1 9R.2 98.2 98.3 98.3 9A.3 98.6GE 40I 74.0 92.3 94.9 95.9 97.3 97.4 97.8 98.1 98.1 98.3 98.4 98.4 98.5 98.5 48.6 98.9

GE 3001 74.0 92.3 94.9 96.U 97.3 97.4 97.9 98.2 98.3 98.5 98.7 98.7 98.8 98.8 98.9 99.1

GE 20r1 74.0 92.3 94.9 96.0 97.3 97.4 97.9 98.2 98.3 98.6 9%.7 98.8 99.0 99.1 99.1 99.8GE 1001 74.0 92.3 94.9 9t.i3 97.3 97.4 97.9 98.2 98.3 98.6 98.7 98.8 99.0 99.1 99.2 Io.u

GE 01 74.0 92.3 94.9 96.0 97.3 97.4 97.9 98.2 98.3 98.6 98.7 98.8 99.0 99.1 NE.? 200.0

TOTAL NUMPER OF OBSERVATIONS: 4C23


STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEQIOO OF RECORD: 77-86MONTH: FEB HOURS(LST: 0600-08G0

IN I GE GE GE CE GE GE GE GE GA UE GE GE GE GE GE 6EFEET I 1c 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/l 1/4

NO CEIL 1 36.5 45.6 47.7 47.7 48.4 48.9 49.3 49.8 49.8 49.8 50.2 50.Z 51.1 S1.2 '1.b 51.9

GE 200001 40.2 49.6 51.8 52.1 52.8 S3.3 53.7 54.2 54.2 54.2 54.6 54.6 %5.4 5 .6 b6.0 56.5GE 18001 4q.9 50.5 52.6 54.0 53.7 54.2 54.6 55.1 55.1 55.1 55.4 55.4 5b.3 56.5 56.8 57.4

GE 16000I 41.1 50.7 52.8 52 .2 53.9 54.4 54.7 55.3 55.3 55.3 55.6 55.6 56.5 5S. 7 T.0 57.5

uE 14roC1 42.8 52.6 54.9 55.3 56.0 56.5 56.8 57.4 57.4 57.4 57.T 57.7 58.6 58.8 .9.1 59.6

.E 120001 44.0 54.2 56.3 56.7 57.4 57.9 58.2 58.8 58.8 58.8 59.1 59.1 60.0 6Z.2 .0.5 61.1

GE 1000C 46.7 57.0 59.5 S,.8 60.7 61.2 61.6 62.1 62.1 2.1 62.5 62.5 63.3 63.5 07.9 b4.4GE 90001 46.7 57.0 59.5 5S.6 60.7 61.2 61.6 62.1 62.1 b2.1 62.5 62.5 63.3 63.5 b3.9 b4.4bE 8P 46.8 57.5 60.G 6C.4 61.2 61.9 62.3 62.8 62.8 62.8 63.2 63.2 64.0 64.2 b4.6 b5.3

LE 700CI 47.0 57.7 60.2 61.5 61.4 62.1 62.5 63.0 63.0 63.0 63.3 63.3 64.2 64.4 b4.7 65.b

4E 60001 47.7 58.4 60.9 61.2 62.1 62.8 63.2 65.T 63.7 63.7 64.2 64.2 65.1 65.3 L5.6 bb.5

IE 50001 53.5 61.6 64.2 64.6 65.4 66.1 66.5 67.0 67.0 67.0 67.5 67.5 68.4 68.6 69.1 7L.UGE 4Sc1 52.9 63.7 66.3 66.7 67.5 68.2 68.6 69.1 69.1 69.1 69.6 69.6 70.5 7U.7 11.2 7L.iGE 40coo 52.8 65.4 68.1 68.4 69.3 70.0 70.4 70.9 70.9 70.9 71.4 71.4 72.3 7Z.5 73.0 73.9

uE 350I 54.7 67.4 70.0 70.4 71.2 71.9 72.3 72.8 72.8 72.8 73.3 73.3 74.2 74.4 74.9 75.8GE 30001 56.7 71.4 74.4 74.7 75.6 76.3 76.? 77.2 77.2 77.2 77.7 77.7 78.6 78.8 79.3 8G.2

bE 250or 58.6 74.2 27.9 78.2 79.1 79.8 80.4 80.9 80.9 80.9 81.4 81.4 82.3 82.5 53.0 43.9GE 20CI 59.8 76.1 80.2 81.9 81.9 82.5 83.0 83.5 83.5 83.5 84.0 84.0 85.1 85.3 65.8 86.?6E 180Cl 60.0 76.3 80.4 81.1 81.9 82.6 83.2 83.7 83.7 83.7 84.2 84.2 85.3 85.4 86.0 86.8UE 15001 60.2 76.5 80.5 81.8 82.6 83.3 83.9 84.4 84.4 R4.4 84.9 84.9 86.0 P6.1 66.7 87.!

IE 12001 6G.2 76.5 80.7 82.1 83.2 83.9 84.4 85.1 85.1 85.1 85.6 85.6 86.7 86.8 87.4 86.Z

GE 10201 s2.2 76.7 80.9 82.5 83.5 84.2 84.7 85.4 85.4 85.4 86.0 86.0 87.0 87.2 87.7 88.6i.E 90c1 60.? 76.8 81.2 82.8 84.0 84.7 85.3 86.0 db.O 86.0 86.5 86.5 87.5 97.7 d8.2 85.16E 8391 b!.2 77.0 81.9 83.5 84.7 85.4 86.0 86.7 86.7 96.7 87.2 87.2 88.2 88.4 84.9 89.6.E 70I 60.2 77.0 81.9 83.5 84.7 85.4 86.0 86.7 86.7 86.7 87.2 87.2 88.2 88.4 88.9 69.8GE 6Oc 60.5 717.5 82.5 84.1 85.3 86.0 86.5 87.4 87.4 87.4 87.9 87.9 88.9 89.1 89.6 9-.

G E SED 60.5 77.9 83.0 84.7 86.5 87.2 87.7 88.b 88.6 88.6 89.1 49.1 90.2 90.4 yo.9 91.0.E 4001 bO.5 77.9 83.2 84.9 86.7 87.4 87.9 88.8 88.9 88.9 89.5 89.5 90.5 0.7 91.2 9'.6E 3I01 61.5 78.1 83.3 95.1 86.6 87.5 88.2 89.3 89.5 Q0.2 9.9 90.9 92.3 92.8 93.3 96.0

uE 2001 f3.5 78.1 83.7 8.4 87.2 87.9 68.6 89.6 89.8 90.5 91.2 91.2 92.6 Q3.3 99.0 9o.-2E 1001 bO.5 78.1 83.7 8E.4 87.2 87.9 88.6 89.6 89.8 90.5 91.2 91.2 92.8 93.5 94.4 99.b

5F 'I 62.5 78.1 83.7 85.4 87.2 87.9 88.6 89.6 89.8 90.5 91.2 91.2 92.8 93.5 94.4 1:'0.0........TAL...........N.............i.'ER...........OF. OBSERVATIONS:........ 570.........................................-.

TOTAL NUMOER OF OBSERVATIONS: sic

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSA1, WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PE1OO OF RECORD: 77-86MONTH: FEB HOURS(LSTI: 09C0-1100

IN I YE GE G E cE GE GE GE GE GE GE GE GE GE GE GL GEFEET I 1C 6 5 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 I 43.0 49.7 51.3 51.6 52.2 52.2 52.2 52.4 52.4 52.4 52.4 52.4 52.5 52.5 52.5 52.9

.E 200001 4A.7 56.4 58.2 59.6 60.1 60.1 60.1 60.2 60.2 6j.2 60.2 60.2 60.5 60.5 .0.5 6u.9

.E 180001 49.3 57.0 58.6 6C.1 60.7 60.7 60.7 60.8 60.8 60.8 60.8 60.8 61.1 61.1 bl.1 61.5

6E 16n001 49.5 57.3 59.0 6C.4 60.9 60.9 60.9 61.1 61.1 61.1 61.1 61.1 61.3 61.3 .1.3 61.7uE 14OI 50.3 58.3 60.4 61.7 62.3 62.3 62.3 62.4 62.4 62.4 62.4 62.4 62.7 62.7 62.7 63.1GE 1211001 S1.A 60.1 62.3 61.6 64.5 64.5 64.5 64.6 64.6 64.6 64.6 64.6 64.9 64.9 64.9 65.3

GE 1000C1 54.1 6Z7 64.9 66.2 67.2 67.2 67.2 67.3 67.3 67.3 67.3 67.3 67.6 67.6 67.6 66.JGE 9' V 1 S4.1 62.7 64.9 66.2 67.2 67.2 67.2 67.3 67.3 67.3 67.3 67.3 67.6 67.6 67.6 66.J': 8000 56.4 65.4 67.6 68.9 70.0 70.0 70.1 70.3 70.3 70.3 7n.3 70.3 70.6 70.6 70.6 71.0

.E 700CI 56.7 65.8 68.0 69.3 70.4 70.4 70.6 70.7 7J.7 70.7 70.7 70.7 71.0 71.0 71.0 71.4

4E 60001 37.5 67.3 69.5 7L.o 71.9 71.9 72.0 72.2 72.2 72.Z 72.2 72.2 72.5 72.5 72.5 7Z.9

GE 5POi 59.2 69.3 71.5 72.9 73.9 73.9 74.2 74.4 74.4 74.4 74.4 74.4 74.6 74.6 74.6 75.2,E 45o0c 62.8 71.2 73.4 74.8 75.8 75.8 76.1 76.3 76.3 76.3 76.3 76.3 76.5 76.5 76.5 76.9

.E 4000 63.2 75.2 77.3 7e.8 80.1 80.2 80.5 8U.b 8.6 8U.6 80.6 80.6 80.9 80.9 80.9 81.3

GE 35001 64.7 77.b 79.8 81.4 82.6 82.8 83.0 83.2 83.2 93.2 81.2 83.2 83.4 83.4 33.4 83.9GE 3raC1 66.1 80.2 82.6 84.4 85.6 85.9 86.2 86.3 86.3 86.3 86.3 86.3 86.6 86.6 86.6 87.0

GE 2501C 67.e 82.6 85.2 83.0 88.2 88.5 88.7 88.9 88.9 88.9 89.9 88.9 89.1 89.1 89.1 89.bGE 2,001 61.8 e4.3 86.8 8E.6 89.8 90.1 90.4 9J.5 90.5 90.6 90.6 90.6 91.0 91.0 91.0 91,5

GE 18001 61.9 84.5 87.1 88.9 90.1 96.4 90.6 90.8 90.8 91.0 91.0 91.0 91.5 91.5 91.5 91.9GE 150CI 69.2 84.9 87.5 89.4 90.6 90.9 91.2 91.3 91.5 91.7 91.7 91.7 92.1 92.3 ;2.3 9-,7

GE 1201r 69.3 85.3 88.5 9C.5 91.9 92.3 92.5 92.7 92.8 93.1 93.1 93.1 93.5 93.6 53.6 94.0

uE 10011 69.3 85.6 88.9 9C.9 92.3 92.7 92.9 93.1 93.2 93.5 93.5 93.5 93.9 94.J 94.0 94..b: 9001 69.3 85.8 89.C 91.u 92.4 92.b 93.1 93.2 93.4 93.6 93.6 93.6 94.0 94.2 94.2 ;4.7GE 8001 61.5 86.0 89.4 91.5 92.8 93.2 93.5 93.6 93.8 94.0 99.0 94.0 94.4 94.6 14.6 95.1LE 7001 69.5 86.0 89.4 9 1. 92.8 93.2 93.6 93.8 93.9 94.2 94.2 94.2 94.6 q4.7 94.7 95.3GE 6001 69.6 86.4 90.C 92.0 93.S 93.9 94.4 94.7 94.8 95.1 9S.1 95.1 95.5 95.7 95.7 96.2

LE SOCI 69.6 86.4 90.1 92.1 93.8 94.3 95.0 95.3 9.4 95.9 95.9 95.9 96.3 96.5 96.5 97.J80 0o1 69.6 86.7 90.4 9Z.4 94.0 94.6 95.3 95.9 96.1 96.6 96.7 96.7 97.2 97.3 97.3 97.8

GE 3001 69.6 46.7 90.4 92.4 94.0 94.6 95.4 96.2 96.3 96.9 97.0 97.0 97.7 97.8 97.8 96.6

GE 2001 b6.6 86.7 90.5 9i.5 94.2 94.7 95.5 9b.S 96.6 97.2 97.4 97.6 98.2 98.4 98.4 99.6

6E 1001 69.6 86.7 90.5 92.5 94.2 94.7 95.5 96.5 96.6 97.2 97.4 97.6 98.5 98.6 98.8 120.0

GE II 69.6 86.7 90.5 9a.5 94.2 94.7 95.5 96.5 96.6 97.2 97.4 97.6 98.5 98.6 98.8 1c0.U


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CtILING VERSUS VISIBILITYuSAFETAC FROM HOURLY OdSERVATIONS


STATION NUMRLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RLCORD: 77-86MONTH: FEd HOURS(LST|: 12.0-1400

............................................................... '.'......'..... .............................................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE SE GE GE GE GE GE GE GE GE GE GE GE LE

FEET I 0 4 i . 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4

NO CEIL 1 49.7 55.4 56.5 5E-6 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 $6.9 56.y

CE 2o01 58.3 65.9 66.9 6].1 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 b7.3 67.3LE 180001 53.7 66.4 67.5 61.6 67.9 61.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 .7.9 61.9.E 1600CI 59.3 67.1 68.2 6b.3 68.6 69.6 68.6 68.6 68.6 68.6 68.6 68.6 68.6 68.6 $4.b 6b.b

CE 14(001 62.3 68.0 69.1 69.2 69.5 69.5 69.5 69.5 69.5 69.S 69.5 69.5 69.5 69.5 t9.5 69.5

UE I27C1 61.9 69.8 70.9 7I.° 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3

E 1000r1 t4. 1 72.3 73.G 73.6 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8 73.8 13.8 73.6.E 90001 t4.Z 72.1 73.2 73.7 74.1 74.U 74.0 74.0 74.0 74.0 74.0 74.D 74.0 74.0 74.0 74.u

,E 87001 67.8 75.9 77.1 77.8 78.0 78.0 78.0 78.0 78.0 78.0 78.0 78.0 78.0 78.0 78.0 76.0

bE 77001 68.4 76.6 77.8 78.5 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 76.7

GE 6C1I 68.7 77.2 78.9 7S.5 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.0

cE 50001 70.3 79.3 81.0 82 .L 82.4 82.4 82. 82. 82.4 82.4 87.4 82.4 82.4 82 4 0 4 i .2.

o 45O01 71.1 80.4 82.1 83.2 83.9 83.9 83.9 83.9 83.9 83.9 63.9 83.9 83.9 83.9 63.9 83.9GE 47OO1 72.8 83.1 85.0 86.0 86.7 86.7 86.9 86.9 86.9 86.9 86.9 86.9 86.9 8b.9 86.9 86.9

GE 3501) 75.1 85.8 87.9 89.2 89.8 89.8 90.0 90.0 90.0 90.0 91.0 90.0 90.0 90.0 90.0 9L. ULE 3701 76.8 88.6 90.9 92.3 93.1 93.1 93.2 93.Z 93.2 93.2 93.2 93.2 93.2 93.2 13.2 93.2

CE 2S001 77.9 90.1 92.5 93.9 94.7 94.7 95.0 95.0 95.0 95.c 95.0 9S.0 95.0 95.0 5.0 95.3

CE 200C1 79.5 91.1 93.8 91.1 96.1 96.1 96.5 96.5 9b.5 96.5 96.5 96.5 96.S 96.5 96.5 90.5CE I8C1 78.6 91.3 94.l 95.4 96.3 96.3 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7 9b.7CE 15001 78.9 92.1 94.9 96.2 97.2 97.2 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.6 97.65E 120r1 78.9 93.0 96.1 97.4 98.5 98.5 98.9 98.9 98.9 98.9 99.9 98.9 98.9 96.9 98.9 96.9

,E 10001 79.9 93.2 96.3 97.7 98.8 98.8 99.2 99.2 99.2 99.1 99.2 99.2 99.2 99.2 99.2 99.2CE 9LCI 7R.9 93.5 96.6 9b.U 99.1 99.1 99.5 99.5 99.5 99.5 99.5 99.' 99.5 09.5 99.5 99.5

S 8Cc1 78.9 93.6 96.7 98.1 99.2 99.2 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.6 9.6 99.b"E 7271 79.9 93.6 96.7 98.1 99.2 99.2 99.6 99.6 99.6 99.6 99.6 99.6 99.6 09.6 99.6 99.CE 6--71 7e.9 93.6 96.7 9E.1 99.2 99.2 99.6 99.6 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7

CE 5Grj 79 93.6 96.7 98.1 99.2 99.2 99.6 99.6 99.7 99.7 lo.o 100.0 i30o. 12o .3 ; .o 100.3,f 4U0I 70.9 93.6 96.7 98.1 99.2 99.2 99.6 99.6 99.7 99.7 107.0 100.2 107.0 190.0 120.0 ICu.3CE !CnI 7q.9 93.6 96.7 96.1 99.2 99. 99.6 99.6 99.7 99.7 17L. 100.0 30a.0 100.0 ILT. 0 10.0

CE 2CCI 74.9 93.6 96.7 98.1 99.2 99.2 99.6 99.6 99.7 99.7 101.0 100.0 100.0 100.0 11.,0 ILL.-

CE I01 79.9 93.6 96.7 98.1 99.2 99.2 99.6 99.6 99.7 99.7 100.0 100.0 200.0 I0.0 120.0 lob.0

;E TI 7A.9 93.6 96.7 98.1 99.7 99.z 99.6 99.6 99.7 99.7 100.0 100.1 100.0 173.0 1.0.0 10U.G

TOTAL NUMVLR OF ORSERVATIONS: '38

UL3BAL CL!MATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUM-.R: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 77-86MONTH: FEB HOURS(LSTI: 1560-1700

CEILIG VISIBILITY IN STATUTE MILESIN I st GE GE 6 GE GE GE GE GE GE GE BE GE GE GE SE

FEET 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 9/16 1/4 1

N3 CEIL 1 46.4 51.2 52.1 5..3 52.6 52.6 52.6 52.7 52.7 52.7 52.7 52.7 52.7 5Z.7 52.7 52.7

AE 20(1JC 57.4 63.6 64.8 65.3 65.5 65.7 65.7 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8A 18001 58.5 65.0 66.1 66.6 66.9 67.0 67.0 67.2 67.2 67.2 67.2 67.2 67.2 67.2 6

7.2 67.2

,E 160CO0 54.0 65.4 66.6 67.0 67.3 67.4 67.4 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6

CE 14COn 6.6 67.2 68.3 68.8 69.1 69.2 69.2 69.3 69.3 69.3 69.3 69.3 69.3 69.3 t9.3 69.3C, 12r00 61.3 68.2 69.3 65.8 70.1 70.2 70.2 70.4 70.4 70.4 7M.4 7r.4 70.4 70.4 71.4 7U.4

rf 10(0r1 64.4 72.3 73.4 73.9 74.2 74.3 74.3 74.5 74.5 74.5 74.5 79.5 74.5 74.5 74.5 74.51,7 9001 64.8 72.7 74.2 T4.b 74.9 75.G 75.0 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 76.2

87001 67.0 75.0 76.5 76.9 77.2 77.4 77.4 77.5 77.5 77.5 77.5 77.5 77.5 77,.5 77.5 77.56E 7COCI bi.2 76.2 77.8 7t.2 78.5 78.7 78.7 76.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 T .8tE 60o00 69.1 77.4 79.C 79.4 79.7 79.9 79.9 80.0 80.0 80.0 80.0 8 n.a 80.0 IQ0.3 50.0 AL.0

,E 5001 71.7 8 . 7 82.6 83.2 83.6 d3.8 83.8 83.9 83.9 83.9 83.9 83.9 83.9 R3.9 83.9 S3.9iF 450r 7'.7 -1.9 83.9 84.4 84.8 85.U 85.0 85.1 85.1 95.1 89.1 85.1 85.1 85.1 45.1 55.1E 4 O01 73.9 83.4 85.7 86.1 86.7 86.9 86.9 87.J 87.0 97.- 87.0 87.U 87.0 97.0 7.0 Rl.

Af 390ri 75.8 85.5 88. 88.5 89.1 89.2 89.2 89.3 89.3 89.3 89.3 89.3 89.3 89.3 .9.3 B .3oC 3-Or0 77.5 87.9 9C.8 91.4 92.0 92.1 92.1 92.3 92.3 92.3 92.3 92.3 92.3 9Z.3 97.3 9.. 3

,; c z5onj 79. 89.1 92.C 92.7 93.3 93.4 93.4 93.6 93.6 93.6 93.6 93.6 93.6 q3.6 3.. Q3.bE 22;0 1 74.4 90.1 93.1 94.3 94.9 95.0 95.3 95.2 95.2 95.2 95.2 95.2 95.7 9$.2 i9. 49b.2

'E 183 74.5 93.4 93.4 94.6 95.2 95.3 95.5 95.6 95.6 95.6 95.6 95.6 95.6 95.6 1 96.6,E I'L;C 78.5 90.7 93.7 94.9 95.5 95.6 95.8 95.9 95.9 95.9 95.9 95.9 95.9 Q5.9 99.9 96.9

F 12z rI 79.7 91.4 94. 5 95.6 96.5 96.6 96.8 96.9 96.9 96.9 96.9 96.9 96.9 9b.9 96.9 9L.9

F 1001 7q.7 91.6 94.9 96.1 96.9 97.1 97.2 97.4 97.4 97.4 97.4 97.4 37.4 97.4 ,7.4 67.4

F 90T 79.7 92.0 95.0 96.5 97.4 97.5 97.7 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8

E 9CI 7. 7 92.0 95.0 96.5 97.4 97.5 97.7 97.8 97.8 97.8 97.8 97.6 97.8 97.8 6 97.9 97.6,E 700 73.7 92.0 95.0 96.5 97.5 97.7 97.8 98.0 98.0 98.0 9R.0 98.0 98.3 98.0 S.G 9, .0

GL 6Ccl 7.7 92.0 95.U 96.5 97.5 97.7 97.8 98.1 98.1 98.1 99.1 98.1 98.1 98.1 59.1 9.1

5, 013O 79.8 92.1 95.2 96.6 97.8 98.0 98.1 98.4 98.4 98.4 9.4 .4 8.9 99.4 96.4sC 4001 1q.8 9Z.1 95.; 96.0 97.8 98.0 98.1 98.4 98.4 98.4 9A.5 98.5 98.5 q8.5 9.7 9b.7bE 3c01 79.8 92.1 95.2 96.6 97.8 98.U 98.1 98.4 98.4 98.4 98.8 98.8 99.3 99.0 99.1 99.16F 201 74.8 92.1 95.2 96. 97.8 98.0 98.1 98.4 98.4 98.4 9. . 99.1 99.6 99.6 9.7 99.7

AF 1oQ0 78.8 92.1 95.2 96.6 97.8 98.0 98.1 98.4 98.4 98.4 99.0 99.3 99.9 99.9 1L,.0 IC..

., 01 7'.9 92.1 95.2 96.6 97.8 98.0 98.1 98.4 98.4 98.4 9 .0 99.3 9919 j9o9 1 .0 10.U

7O7AL NIMPLP OF ORSRVATIONC: 695

-3,,AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY5FETAC FROM HOURLY OSERVATIONSiE WATwHR sERVICE/MAC

TATION NUMBIR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 77-86MONTH: FEB HOURSILST): 1800-2U00

ILPIG VSIBILITY IN STATUTE MILLSI', (E GE GE CE GE GE GE GE GE GE GE GE GE GE GE bE

EiT I 1' 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 N/lb 1/4 3.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................... . o ... .. . .. .

i IL I 46.C 54.4 55.4 55.6 55.8 55.8 56.0 56.0 .b.0 56.0 56.0 56.0 56.0 56.0 56.0 5b.3

'COUCI 0,2 59.6 60.b 61.2 61.3 61.3 61.5 61.5 61.5 61.5 61.5 61.5 61.5 61.5 Li.5 61.

16 0CC I 51.5 61.3 62.3 62 .9 63.1 63.1 63.3 63.3 b3.3 63.3 63.3 63.3 63.3 63.3 63 , 3 63.31 ,0 51.9 61. 7 62.7 62.3 63.5 63.5 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 .3.7 63.714-30(- 52.9 63.1 6 ,4 . 64.b 64.8 64.8 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.3 b5.0 65.

F ZOG3 53.5 64.b 65.b 66.2 66.3 66.3 66.5 66.5 6b.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5

137001 57.3 68.E 70.2 7C.6 71.0 71.0 71.2 71.2 71.2 71.2 71.2 71.2 71.2 71.2 71.2 71.29rorl 57.3 69.# 70.8 71.3 71.5 71.5 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7AroCI 58.3 71.0 72.3 72.9 73.1 73.1 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.370001 64.5 71.s 73.1 73.7 73.8 73.8 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.3 74.0 74.3

6300i S9.6 72.9 74.4 75 . 75.2 75.2 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4

E 5sr1 bi.7 75.6 77.5 78.1 78.3 78.3 78.5 78.5 78.5 78.5 79.5 78.5 78.5 78.5 7R.5 7B.5450CI b2.5 76.7 78.3 75.2 79.4 79.4 79.6 79.6 79.b 79.6 79.6 79.6 79.6 79.6 79.6

79.6

4700C 62.9 77.S 79.4 sc.0 80.2 8C.2 80.4 80.4 80.4 80.4 87.4 80.4 83.4 80.4 80. 4 8U.4

35004 63.B 79.2 81. 7 8Z.3 82.7 82.7 82.9 82.9 82.9 82.9 82.9 82.9 82.9 82.9 82.9 P; .93C0GI 66.3 83.5 86.0 86.7 87.1 87.1 87.3 87.3 87.3 87.3 87.3 87.3 87.3 87.3 87.3 87.3

26CCJ b66. 96.0 68.5 89.2 89.6 89.6 89.8 89.8 89.8 89.8 89.8 89.8 89.4 P9.8 80.8 89.82C0 1h 67.7 87.S 90.0 9.. 91.2 91.2 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 1.3 QA.3

1F,71 07.7 87.7 90.2 9 ..3 91.3 91.3 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5I 0r1 .6.1 88.5 91.2 92.1 92.5 92.5 92.7 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9 91.9

12 rl 6. s 89.4 92., 93.5 93.8 93.8 94.0 94.2 94.2 94.2 94.2 94.2 94.2 94.2 44.2 Q9'.2

Irccl $ .5 F9.4 92.7 92.7 94.0 94.1 94.2 94.4 94.4 94.4 94.4 94.4 94.4 94.4 94.4 94.9,3^I (,.5 q9.6 92.9 93.b 94.4 94.4 94.6 94.8 94.9 q4.6 94.8 94.8 94.8 94.8 94.8 94.b

P31l 68.5 90.L 93.3 94.4 95.0 9 5. 95.2 95.4 95.4 95.4 9 .4 95.4 95.4 95.4 95.4 q5.4

730CI 6.5 90.2 93.5 94.6 95.2 9s.2 95.4 95.6 9S.6 96.6 96.6 95.6 95.6 95.6 i5.6 46.6630G tH.S 90.2 93.7 94 .A 95.4 95.4 95.6 95.8 95.8 95.8 95.8 95.8 95.8 95.8 5.8 95.8

93c0 6q.5 90.2 93.b qs.6 95.6 95.8 96.0 96.2 96.2 96.2 9.6.2 96.2 96.2 6.2 ;6.2 9t.24:' - 64.5 90.2 94.C 95.2 96.0 96.2 96.3 96.5 96.5 96.S 96.5 96.5 96.5 Q..5 96.5 9b.53071 b.7 93.4 94.2 95.4 96.3 96.7 -6.9 97.1 97.1 97.1 97.1 97.1 97.3 97.3 97.3 97.7

2U3l ,-.7 90.4 94.2 95.4 96.3 6.7 96.9 97.1 97.3 97.3 97.3 97.3 97.7 97.7 97.7 9b.8

1O 1 2.7 90.4 94.i 9E.4 96.3 6.7 96.9 97.1 97.3 97.3 97.3 97.3 97.9 97.9 90.1 99.6

- 4.7 90.4 94.2 95.4 96.3 96.7 6 .9 97.1 97.3 97.3 97.3 97.3 97.9 97.9 98.1 IL.U

iTAL i, jM-LP OF OBSERVATIONS: 20

I o


STATION NUMBER: 724916 STATION KAME: FT OROIFRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: FEB HOURSILSTI: 2100-2300

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE 6E

FEET I 10 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 U

NO CEIL 1 46.6 56.6 57.3 51.3 58.1 58.1 58.1 58.3 58.3 58.3 58.3 58.3 58.7 58.7 58.7 59.3

GE 200001 50.5 61.6 62.2 62.2 63.0 63.0 63.0 63.2 63.2 63.2 63.2 63.2 63.6 63.6 63.6 64.2CE 180001 50.7 61.8 62.4 62.4 63.6 63.6 63.6 63.8 63.8 63.8 63.8 63.8 64.2 64.2 b4.4 65.oE 160001 51.3 62.4 63.0 63.0 64.2 64.2 64.2 64.4 64.4 64.4 64.4 64.4 64.8 64.8 65.0 66.6(.E 140001 51.5 63.6 64.2 64.2 65.4 65.4 65.4 65.6 65.6 65.6 65.6 65.6 66.1 66.1 66.3 66.9

GE 120001 52.8 65.4 66.3 66.3 67.5 67.5 67.5 67.7 67.7 67.7 67.7 67.7 68.1 68.1 o8.3

6..9

GE I ZOO1 55.0 67.9 68.7 66.7 69.9 69.9 69.9 70.1 70.1 70.1 71.1 70.1 70.6 70.6 70.8 71.4GE 9n00 55.0 67.9 68.7 6e.7 69.9 69.9 69.9 70.1 70.1 70.1 70.1 70.1 70.6 70.6 70.8 71.4

GE 80O 55.6 68.9 69.7 69.7 71.0 71.0 71.0 71.2 71.2 71.2 71.2 71.2 71.6 71.6 71.8 74.4UE 70001 55.6 69.7 70.6 7[.6 71.8 71.8 71.8 72.0 72.0 72.0 72.0 72.0 72.4 72.4 72.6 73.25E bOOCI 58.1 72.2 73.0 73.U 74.2 74.2 74.2 74.4 74.4 74.4 74.4 74.4 74.8 74.8 75.1 75.7

GE 5"001 b9.7 73.8 74.6 74.6 75.9 75.9 75.9 76.1 76.1 76.1 76.1 76.1 76.5 76.5 76.7 77.3.E 45JCI 59.7 74.6 75.5 75.5 76.7 76.7 76.7 76.9 76.9 76.9 76.9 76.9 77.3 77.3 77.5 76.1

1E 40001 61.3 77.5 78.3 7E.3 79.6 79.6 79.6 79.8 79.8 79.8 75.8 79.8 83.2 80.2 80.4 81.0GE 35001 62.8 78.9 79.8 75.8 81.0 81.0 81.0 81.2 81.2 81.2 81.2 81.2 81.6 81.6 81.8 82.4GE 30001 64.8 83.0 85.1 8E.3 86.5 86.5 86.5 86.7 86.7 86.7 86.7 86.7 87.1 A7.1 87.3 87.9

GF 25001 66.7 85.5 87.7 88.1 89.4 89.4 89.4 89.6 89.6 89.6 89.6 89.6 90.3 900. 90.2 90.8GE 20Cri .6.7 86.7 89.C 89.4 90.6 90.6 90.6 90.8 90.8 90.8 90.8 90.8 91.2 91.2 91.4 9 U(E 18001 66.7 86.7 89.2 85.6 90.8 90.8 90.8 91.0 91.0 91.7 91.0 91.0 91.4 51.4 91.6 92.zGE 15001 66.7 87.1 89.8 9E.2 91.4 91.4 91.4 91.6 91.6 91.6 91.6 91.6 92.0 q2.0 s2.2 92.8E 12001 67.5 88.5 91.6 92.0 93.3 93.3 93.3 93.5 93.5 93.5 93.5 93.5 93.9 93.9 94.1 94.7

GE 1!00 67.5 88.8 92.2 92.6 93.9 93.9 93.9 94.1 94.1 94.1 94.1 94.1 94.S 94.5 94.7 95.3GE 9001 67.5 89.2 92.6 93.0 94.3 94.3 94.3 94.5 94.5 94.5 94.5 99.5 94.9 94.9 9.1 95.7GE 8001 67.5 89.2 92.6 93.: 94.3 94.3 94.3 94.5 94.5 94.5 94.5 94.5 94.9 94.9 95.1 95.7GE 70C1 67.5 89.2 92.6 93.0 94.3 94.3 94.3 94.5 94.5 94.5 94.5 94.S 94.9 94.9 95.1 9b.7bE 6071 67.5 89.2 93.5 92.9 95.1 95.1 95.1 95.3 95.3 95.3 95.3 95.3 95.7 95.7 95.9 96.5

GE 50n) 67.5 89.2 93.5 93.9 95.1 95.1 95.1 95.3 95.3 95.3 95.3 95.3 95.7 95.7 95.9 9b.b6r 4001 67.5 89.2 93.5 93.9 95.1 95.1 95.1 95.3 95.3 95.3 95.3 95.3 95.7 95.7 95.9 96.7GE 30c1 67.5 89.2 93.5 93.9 95.1 95.1 95.1 95.5 95.5 q5.7 95.7 95.7 96.1 96.1 96.3 96.0GE 2001 67.5 89.2 93.5 91.9 95.1 95.1 95.1 95.5 95.5 96.1 96.1 96.1 96.5 96.5 96.9 99.4GE 1001 67.5 89.2 93.5 93.9 95.3 95.1 95.3 95.5 95.5 96.1 96.1 96.1 96.5 96.5 97.5 ICL.0

LE . 67.5 89.2 93.5 93.9 95.1 . 95. .95.1 95. 9:5. 96. 96.1 96.1 96.5 96.5 97.5 ICL.O

TOTAL NUMOER OF OBSERVATIONS: 489


STATION NUMRZR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: FEB HOURS(LST): ALL

CEILINGVIBIIYISTTTMLE

IN r 'E GE GE FE BE GE GE GE GE GE GE GE GE GE GE uEFEET I 10 6 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 I 44.9 52.u 63.3 53.5 53.9 S4.0 54.1 54.2 54.2 54.2 54.3 54.3 54.5 54.5 54.6 54.8

GE 200001 51.3 59.7 61.G 61.5 62.0 62.1 62.2 62.3 62.3 62.3 62.4 62.4 62.6 62.6 62.7 62.9uE 180oc0 52.0 60.6 61.9 62.4 62.9 63.0 63.1 63.2 63.2 63.2 63.3 63.3 63.5 63.5 63.6 6s.9GE 1600CI 52.5 61.0 62.3 62.8 63.3 63.4 63.5 63.7 63.7 63.7 63.7 63.7 63.9 64.D 64.1 64.3GE 140001 53.S 62.4 63.7 64.2 64.7 64.9 64.9 65.1 65.1 65.1 65.2 6S.2 65.4 65.4 65.5 65.7uE 120001 54.7 63.9 65.3 65.8 66.4 66.5 66.6 66.8 66.8 66.8 66.8 66.8 67.1 67.1 67.2 67.4

bE 100001 57.4 66.9 68.5 6S.1 69.7 69.8 69.9 70.G 70.0 70.0 70.1 70.1 70.3 70.3 70.4 70.7uE 90001 57.5 67.1 68.7 64.3 69.9 70.0 70.1 70.3 7,3.3 70.3 70.3 70.3 70.6 70.6 70.7 7U.9bE 8000 59.3 69.3 70.9 71.5 7Z.I 72.3 72.4 72.5 72.5 72.5 72.6 72.6 72.8 72.9 72.9 73.2GE 7nOO 59.7 69.9 71.6 72.4 72.8 73.0 73.1 73.2 73.2 73.2 73.3 73.3 73.5 73.5 73.6 73.9GE 6001 60.7 71.2 72.9 73.5 74.2 74.3 74.4 74.6 74.6 74.6 74.6 74.6 74.9 74.9 75.0 75.3

uE 5rO0T 62.8 73.7 75.6 76.3 76.9 77.1 77.2 77.4 77.4 77.4 77.5 77.5 77.7 77.7 77.8 76.1UE 4500| 63.8 75.0 77.0 77.7 78.4 78.6 78.7 78.8 78.8 78.8 7q.9 78.9 79.2 79.2 79.3 79.6.E 40r1 65.2 77.4 79.4 8C.1 80.9 81.1 81.2 81.4 81.4 81.4 81.5 81.5 81.7 81.7 81.8 82.1.E 350CI 66.9 79.5 81.7 82. 83.3 83.4 83.6 83.8 A3.8 83.8 83.8 83.8 84.1 84.1 64.2 64.GE 30001 68.7 82.7 85.3 86.2 87.1 87.2 87.4 87.6 87.6 87.6 87.6 87.6 87.9 87.9 88.0 88.3

AE 25001 70.0 84.8 87.6 98.5 89.4 89.6 89.8 89.9 89.9 89.9 90.0 90.0 90.3 90.3 90.4 9b.7GE 2CUO1 73.7 86.2 89.1 9C.2 91.0 91.2 91.5 91.6 91.6 91.7 91.7 91.7 92.0 92.1 92.2 92.5E 19c0I 73.8 86.4 89.3 9C.4 91.3 91.5 91.7 91.9 91.9 91.9 92.0 92.0 92.3 92.4 92.5 9Z:8

GE 16Or1 71.1 86.9 89.8 91.1 91.9 92.1 92.4 92.6 92.6 92.7 92.8 92.8 93.0 93.1 93.2 93.6GE 12JLI 71.2 87.6 90.9 92.1 93.2 93.4 93.6 93.8 93.9 93.9 94.0 94.0 94.3 94.4 94.5 94.8

1[ leo01 71.2 97.8 91.2 92.5 93.5 93.7 94.0 94.2 9q.z 94.3 94.4 94.4 94.7 94.7 94.8 95.2LE 9001 71.2 98.0 91.4 92.8 93.9 94.1 94.4 94.6 94.6 94.7 94.7 94.7 95.0 95.1 9..2 95.5uE PO11 71.2 88.2 91.7 91. 94.2 94.4 94.7 94.9 94.9 94.9 95.0 9s.1 95.3 05.4 95.5 95.8GE 7301 71.2 88.2 91.7 92.1 94.2 94.4 9497 94.9 95.0 95.0 95.1 95.1 95.4 Q5.5 95.6 95.9.[ 60C1 71.3 98.4 92.1 93.4 94.6 94.8 95.1 95.4 95.5 95.5 95.6 95.6 95.9 95.9 96.0 96.4

bE 5001 71.3 88.5 92.2 93.b 94.9 95.2 95.5 95.8 95.9 96.0 96.1 96.1 96.4 96.4 96.5 96.96E 4001 71.3 98.5 92.3 93.7 95.C 95.3 95.6 96.0 96.1 96.2 96.4 96.4 96.7 96.7 96.9 97.3GE 3001 71.3 88.6 92.4 93.6 95.1 95.4 95.8 96.3 96.3 96.6 96.8 96.8 97.3 97.4 97.5 96.4.E 2001 71.3 88.6 92.5 93.9 95.2 95.5 95.9 96.4 96.5 96.8 97.1 97.1 97. 97.8 98.0 99.4.E 1001 71.3 88.6 92.5 93.9 95.2 95.5 95.9 96.4 96.5 96.8 97.1 97.2 97.8 98.0 98.3 99.9

E I 71.3 88.6 92.5 93.9 95.2 95.5 95.9 96.4 96.5 96.8 97.1 97.2 97.8 98.0 98.3 100.0OTLNMR°FO..E O.R.VATIONS: 373...9.. ....... .


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAfETAC FROM HOURLY OBSERVATIONSAIR aEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORO: 77-86

MONTH: MAR 0U8S(LST: 06jo-0800

IN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE GEFEET 1 10 6 5 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 I 4".5 44.5 44.8 45.4 45.7 45.7 46.1 46.1 46.2 46.4 46.4 46.5 46.8 47.0 47.0 47.4

E ZOCO01 42.5 46.7 47.1 47.8 48.1 48.1 48.7 48.7 48.8 49.0 49.0 49.1 49.5 49.6 49.6 SL.1E 1A0001 43.1 47.3 47.8 48.4 48.7 48.? 49.3 49.3 49.5 49.6 49.6 49.8 50.1 50.2 50.2 5U.7uE 160001 43.1 47.3 47.8 48.4 48.7 48.7 49.3 49.3 49.5 49.b 49.6 49.8 50.1 50.2 0.2 50.7UP 14o l 44.0 48.2 48.8 49.6 49.9 49.9 50.5 50.5 50.7 50.9 5n.9 51.0 51.3 51.5 51.5 51.9,E 12'0CI 45.1 49.5 50.1 SC.9 51.2 51.3 51.9 51.9 52.1 52.4 52.4 52.6 52.9 53.0 53.0 53.5

SIO001 4P.1 52.4 53.C 53.8 54.1 54.3 54.9 54.9 55.0 55.3 55.3 55.5 55.8 56.0 56.0 5b.4,E 9000 4'.4 52.7 53.3 54.1 54.4 54.6 55.2 55.2 55.3 55.6 55.6 55.8 56.1 56.3 56.3 5t.7GE 60O[ 45.S 54.3 54.9 55.6 56.0 56.1 56.7 56.7 56.9 57.2 57.2 57.3 57.7 57.8 57.8 5b.bE 7fGCI 49.5 54.4 55.0 55.8 56.1 56.3 56.9 56.9 57.0 57.3 57.3 57.5 57.8 58.0 58.0 56.4GE 6001 50.4 55.6 56.3 57.0 57.3 57.5 58.1 58.1 58.3 58.6 58.6 58.7 59.0 59.2 59.Z 59.7

fE 50001 51.8 58.3 58.9 59.7 60.0 6C.1 60.7 60.7 61.9 61.2 61.2 61.4 61.7 61.8 bl.8 62.3GE 4FO0C 53.2 60.3 61.1 61.8 62.1 62.3 62.9 62.9 63.1 63.4 63.4 63.5 63.8 64.0 64.0 64.5GE 4(01 56.0 63.7 64.5 65.2 65.5 65.7 66.3 66.3 b6.5 66.8 66.8 66.9 67.2 67.4 67.4 67.9

uE 35001 58.6 67.1 67.9 68.6 68.9 69.1 69.7 69.7 b9.9 70.2 70.2 70.3 70.6 73.8 70.8 71.3

GE 30O01 61.8 71.9 73.0 74.U 74.5 74.7 75.3 75.3 75.4 75.7 75.7 75.9 76.2 76.4 76.4 76.8

,E 2'OCI 62.9 74.0 75.7 77.0 77.4 77.6 78.2 78.2 78.4 78.7 78.7 78.3 79.1 79.3 79.3 79.8GE 20Ol 64.8 77.1 78.8 8c.4 81.0 81.1 81.8 81.8 81.9 82.2 82.2 82.4 82.7 82-8 b2-8 83.3GE 18001 64.9 77.7 79.4 81.1 81.8 81.9 82.5 82.5 82.7 83.C 83.0 83.2 83.5 83.6 83.6 84.1GE 350S) 65.7 79.8 81.8 83.5 84.1 84.4 85.0 85.2 85.3 85.6 85.6 85.8 86.1 96.2 86.2 86.7

,E 12001 66.5 80.8 83.0 85.2 85.8 86.2 86.9 87.0 87.2 87.5 87.5 87.6 87.9 88.1 68.1 88.6

&E 1C00| 66.8 81.1 83.6 85.8 86.4 87.0 87.6 87.8 87.9 88.3 88.4 88.6 89.0 89.2 89.2 89.6GE 9001 66.8 81.6 84.2 86.4 87.0 87.6 88.4 86.6 88.7 89.0 80.2 89.3 89.8 90.0 90.0 9U.4GE 8001 66.8 81.8 84.4 86.7 87.5 88.1 88.9 89.2 89.3 89.6 90.0 90.1 90.6 90.7 9n.7 91.2GE 70.1 66.8 81.9 84.5 86.9 87.6 86.4 89.2 89.5 89.6 90.0 90.4 90.6 91.0 91.2 91.2 91.71E 6001 66.8 82.2 85.3 87.8 88.6 89.3 90.3 90.6 90.7 91.0 92.5 91.7 92.1 92.3 92.3 9k.7

G[ 5001 66.8 82.2 85.3 87.8 88.7 89.5 9n.6 90.9 91.2 91.7 97.1 92.3 92.7 92.9 97.9 93.4GE 4oC1 66.8 82.2 85.3 87.8 88.9 89.6 91.2 91.8 92.1 92.7 93.2 93.4 94.1 94.3 94.3 94.76E ToO 66.8 82.4 85.5 87.9 89.0 90.0 91.5 92.3 92.6 93.2 93.7 94.0 94.7 95.1 95.1 91.8GE 2001 bb.R 82.4 85.5 87.9 89.2 90.1 91.7 92.6 93.0 93.7 94.1 94.4 95.2 95.7 96.0 96.U

GE locl 66.8 82.4 85.6 88.1 89.5 90.4 92.1 93.0 93.5 94.1 94.6 94.9 95.8 96.3 96.8 99.2

GE CI b6.8 82.4 85.6 88.1 89.5 90.4 92.1 93.0 93.5 94.1 94.6 94.9 95.8 96.3 96.8 100.0

TOTAL NIMPER OF ORSERVATIONS: 647

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR sEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION KAME: FT ORDIFRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAR HOURS(LSTI: 09UL-11co

CE ILIP'I VISB1L1ITY IN STATUTE MILES

IN GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE LEFEET I 10 6 5 4 3 2 1/2 z A 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CElL 1 45.8 48.3 49.0 4S.2 49.4 49.4 49.4 49. '49.4 49.4 49.4 49.6 49.6 49.6 49.6 49.7

E 200001 49.9 52.6 53.4 53.9 54.1 54.2 54.2 54.2 54.2 54.2 54.2 54.4 54.4 54.4 51.4 54.5

GE 18C OI 50.9 53.6 54.4 S4.9 55.1 55.2 55.2 55.2 55.2 55.2 55.2 55.4 55.4 55.4 F.4 56.5

5E 16VGCI 50.9 53.6 54.4 54.9 55.1 55.2 55.2 55.2 55.2 55.2 55.2 55.4 55.4 55.4 55.4 55.56E 1QOCI 52.2 55.1 56.0 56.5 56.7 56.8 56.8 56.8 56.8 56.8 56.8 56.9 56.9 56.9 56.9 57.1

UE 120001 54.0 57.1 58.1 58.5 58.8 58.9 58.9 58.9 58.9 58.9 58.9 59.0 59.0 59.0 59.0 59.2

GE 100001 56.7 59.8 60.8 61.5 61.7 61.9 61.9 61.9 61.9 61.9 61.9 62.0 62.0 62.0 b2.0 62.1GE 9C00 56.8 59.9 60.1 61.6 61.9 62.0 62.0 62.u 62.0 62.0 62.0 62.1 62.1 62.1 62.1 62.2GE 80001 58.8 62.2 63.2 64.0 64.2 64.3 64.3 64.3 64.3 64.3 64.3 64.5 64.5 64.5 L4.5 64.6

GE 7(00 59.7 63.1 64.1 64.d 65.1 65.2 65.2 65.2 65.2 65.2 65.2 65.3 65.3 65.3 us.3 65.4

.E 60001 b1.5 65.1 66.1 66.8 67.0 67.2 67.2 67.2 67.2 67.2 67.2 67.3 67.3 67.3 67.3 67.4

GE SCOCI 63.1 66.7 67.7 68.4 68.6 68.8 68.8 68.8 68.8 68.8 68.8 68.9 68.9 68.9 68.9 69.0.E 45CCI b4.2 68.0 69.1 65.9 70.1 70.2 70.2 70.2 70.2 70.2 7n.2 70.4 70.4 7U.4 10.4 7L.6

GE 4O01 67.0 71.1 72.2 71.1 73.4 73.6 73.6 73.6 73.6 73.6 73.6 73.7 73.7 73.7 73.7 73.8LE 350C5 72.4 77.5 78.7 7S.6 80.0 80.1 80.1 80.1 80.1 80.1 80.1 80.2 80.2 80.2 80.2 8u.36E 30001 75.0 81.1 82.3 83.1 83.8 83.9 81.9 83.9 83.9 83.9 83.9 84.0 84.0 84.0 84.0 84.1

uE 2F0 i 76.1 83.5 84.9 85.9 86.6 86.7 86.7 86.7 86.7 86.7 86.7 86.8 86.8 86.8 86.8 87.0GE 21001 76.5 84.1 85.5 86.5 87.3 87.5 87.5 87.5 87.5 87.5 87.5 87.6 87.6 87.6 o7.6 87.7E 18C 76.5 84.6 86.0 87.1 88.1 88.2 88.2 88.2 88.2 88.2 88.2 88.3 88.3 88.3 a8.3 88.4

G 150CI 77.2 87.U 88.3 89.7 90.7 90.8 90.9 91.0 91.0 91.0 91.0 91.1 91.1 91.1 91.1 91.3GE 120C1 77.5 87.9 89.5 9C.9 92.1 92.3 92.4 92.5 92.7 92.7 92.7 92.9 92.9 92.9 92.9 93.0

GE 10001 77.5 88.3 90.4 92.1 93.6 93.7 94.0 94.1 94.3 94.3 94.3 94.5 94.5 94.5 94.5 94.6GE 0001 77.5 88.7 91.0 92.9 94.5 94.6 94.8 95.U 95.2 95.2 95.2 95.3 95.3 95.3 95.3 91.GE 0001 77.5 88.8 91.4 9!.2 94.8 95.0 95.2 95.3 95.6 95.6 95.6 95.7 95.7 95.7 95.7 95.8bE 7005 77.5 88.9 91.5 93.5 95.2 95.3 95.7 95.8 96.1 96.1 96.1 96.2 96.2 96.2 96.2 96.3GE 6005 77.5 88.9 91.5 93.5 95.2 95.3 95.8 95.9 96.2 96.2 96.2 96.3 96.3 96.3 96.3 96.4

GE 5001 77.5 89.1 91.6 93.6 95.6 95.7 96.7 96.9 97.2 97.3 97.3 97.4 97.4 97.4 97.4 97.5GE 4001 77.5 89.1 91.8 93.7 95.8 95.9 97.0 97.3 97.5 98.0 9A.2 98.3 98.4 98.4 98.4 98.5GF 3001 77.5 89.1 91.8 93.8 96.1 96.2 97. 97.7 97.9 98.4 98.5 98.6 98.8 98.8 98.8 99.UbE 2001 77.5 89.1 91.8 93.8 96.1 96.3 97.5 97.8 98.4 98.9 99.1 99.3 99.5 99.5 99.5 99.8

GE 1001 77.5 89.1 91.8 93.8 96.1 96.3 97.5 97.8 98.4 99.0 99.3 99.4 99.6 99.6 99.6 1U.0

GE T1 77.5 89.1 91.8 93.8 96.1 96.3 97.5 97.8 98.4 99.0 99.3 99.4 99.6 99.6 99.6 100.0.. °........................................................... ..................................................... ...... ,

TOTAL NUMVER OF OBSERVATIONS: 413

UL.)bAL CLIMAIOLOGY BRANCH PERCENTAGE FREWUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOUPLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NOMBLR: 724916 STATION KAME: FT ORD/FRITZSCHE AAF CA PEQ100 OF RECORD: 77-86

MONTH: MAR HOURSILST1: 12c0-1400

ZEILINL VISIBILITY IN STATUTE MILES

IN I GE GE GE CF GE GE G GE GE GE E GE G GE GE UE

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4

CEIL I -2.4 54.5 54.5 54.5 54.6 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 19.7 54.7 5.7

,E 2CCOnl 5.3 60.4 60.6 6C.9 61.0 61.1 61.1 61.1 61.1 61.1 bi.1 61.1 61.1 61.1 b1,1 61.1

E 1a000 59.5 60.b 60.9 61.1 61.3 61.4 61. 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4lbOUCl 5d.5 60.6 60.9 61.1 61.3 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4140U01 59.7 62.0 62.2 62.5 62.6 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 b,.7

9 1200"I t,. 62.7 63.0 63.2 63.3 63.5 63.5 63.5 63.5 63.5 63.5 63.5 63.5 63.5 b3.5 63.5

. l1rool 62.9 65.3 65.7 65.9 66.1 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.29 9 (I 63.2 65.7 66.1 66.3 66.4 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5

8(001 L5.1 67.8 68.1 6E.4 68.5 68.6 68.6 68.6 68.6 68.6 68.6 68.6 68.6 68.6 68.6 66.b

E 700CI 66.2 68.9 69.2 6S.5 69.6 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7 t9.7 69.7LU 6CO1 | b7.4 70.1 71.0 71.2 71.3 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5S E 5t0oo 68.6 71.3 72.2 72.4 72.6 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7• F 450C1 77.1 72.8 73.7 73.9 74.0 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74:,

65 40(1 72.4 75.2 76.3 76.5 76.8 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9-,E 35001 78.4 82.0 83.3 83.9 84.4 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 64.5 84.5bE 3-01I 82.7 e7.1 88.4 85.1 89.5 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7

6C 2SCt1 84.0 88.6 90.0 9C.7 91.1 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3E 2CU01 64.5 89.9 91.6 92.4 92.9 93.0 93.0 93.0 93.0 93.C 93.0 93.0 93.0 93.0 93.0 9j.jE 180 I 64.9 9Q.5 92.3 92.0 93.5 93.6 93.7 93.7 93.7 93.7 93.7 93.7 93.7 93.7 93.7 93.7

9i 150S1 65.6 91.b 93.4 94.2 94.7 94.8 95.0 95.2 95.2 95.2 95.2 95.2 95.2 96.2 95.2 95.2

E 12001 86.0 92.7 94.6 95.b 96.1 96.2 96.3 96.8 96.9 96.9 96.9 96.9 96.9 9b.9 96.9 96.9

E 11ICI 860 9;,2 95.2 96.4 97.0 97.2 97.?3 979 98.0 98.0 99.0 98.0 98.0 98.0 98.3 98.0-E 901 66.0 93.Z 95.4 96.8 97.4 97.5 97.7 98.3 98.4 98.4 98.4 98.4 98.4 98.4 98.4 9.4,E F01 66.0 93.2 95.4 96.9 97.5 97.7 97.8 98.4 98.5 98.5 99.5 98.5 98.5 98.5 98.5 96.5

E 70P: 86.0 93.2 94.6 97.1 98.0 98.2 98.3 98.9 99.0 99.0 99.0 99.0 99.0 99.3 99.0 9s.10., 8001 86.0 93.2 95.7 97.3 98,5 98.6 98.8 99.4 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5

E,5 5UnI 86.0 93.2 95.7 97.3 98.6 98.8 98.9 99.5 99.6 99.6 99.6 99.6 99.6 99.6 49.6 49.6

"[ 4 uC 66.0 93.2 95.7 97.3 98.6 98.8 99.0 99.6 99.8 99.8 99.8 99.8 99.8 99.8 39:8 9.8F 30( 86.0 93.2 95.7 97.3 98.6 98.8 99.0 99.8 99.9 99.9 99.9 99.9 99.9 99.9 49.9 94.9

(,F 20d' 86.0 93.2 95.7 97.3 98.6 98.8 99.0 99.8 99.9 99.9 99.9 99.9 100.0 3(0.0 L.O.0 ]ou.JiE IUCI d6.0 93.2 95.7 97.3 99.6 98.8 99.0 99.8 99.9 99.9 99.9 99.9 103.0 103.0 1..0.0 100.0

.... C .6.0 93 2 95.7 97 3 98 6 98 8 99 . 99 . 99.9 9.9 99. 9 99 9 10O. 1 0l0 100. 0 0.0U

TOTAL NUMrER OF OBSERVATIONS: P13

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYU.A.AFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 724916 STATION KAME: FT ORD/FRITZSCHE AAF CA PEPIOO Of RECORO: ?7-86MONTH: MAR HOURSILSTI: 1500-1700

IN IGE GE GE GE G GE GE GE GE GE GE GE GE GE GE GEFEET 1 IC 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 CEIL 1 53.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.5 54.5 54.5 54.5

'A 230 59.e 61.3 61.8 61.8 62.2 62.2 62.2 62.2 t2.2 62.2 62.2 62.2 62.3 62.3 b2.3 b2.31F 167071 b9.8 61.3 bl.8 61.8 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.3 62.3 o2.3 62.3bE ibcOO0 19.6 61.3 61.6 61.8 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.3 62.3 .2.3 62.3

E 1qrwCI b0.1 62.1 62.6 62.b 63.0 63.0 63.0 63.0 63.0 63.0 63.0 63.0 63.1 63.1 u3.1 63.I

12 r'U01 b1.S 63.1 63.6 62.6 64.0 64.0 64.0 64.0 b4.0 64.0 64.0 64.0 64.2 64.2 b4.2 64.2

.E 1oc0u0 L4.3 65.9 66.4 66.4 66.8 66.8 66.8 66.9 66.8 66.8 66.8 66.8 66.9 66.9 66.9 66.9

9CO00 .4.7 66.4 66.9 66.9 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.5 67.5 .7.5 67.5"E 800 ',.3 68.0 68.5 68.1 68.9 68.9 68.9 68.9 68.9 68.9 68.9 68.9 69.0 69.0 69.0 69.0

:E 7CCI u7.7 69.4 69.9 64.v 70.3 70.3 70.3 70.3 70.3 70.3 77.3 70.3 70.5 70.5 71.5 7L.5

,E bPCCI 3.1 70.5 71.0 71.1 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.7 71.7 71.7 71.7

A 570r0l b9.3 71.3 71.8 71.9 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.4 72.4 72.4 72.4-, 45G071 73.2 72.6 73.1 71.2 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 74.0 74.0 74.0 76.0,, 4rcr7 7-7 746 71.3 75.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.2 76.2 76.2 76.2

6c 3 0LCI 76.0 79.9 80.4 8c.6 81.2 31.2 81.2 81.2 81.2 81.2 81.2 81.2 81.4 81.6 81.4 81.4

[ !7CZI d1.2 86.5 87.0 87.6 88.3 88.3 88.5 88.5 88.5 88.5 88.5 88.5 88.6 88.6 88.6 8A .b

oF 2SOC1 d1.8 48.3 88.8 89.2 90.2 9C.2 90.3 90.3 90.3 90.3 9).3 90.3 9C .4 90.6 90.4 9C.4E 2r0urI 2.7 89.9 90.4 9C.8 91.7 91.7 91.9 91.9 91.9 91.9 91.9 91.9 92.0 92.0 92.0 92.0

..E Il"I 62.6 90.U 90.6 9C.9 91.9 91.9 92.0 92.0 92.0 92.0 97.0 92.0 92.1 92.1 92.1 92.1bE 15.1 82.9 90.4 91.1 91.1 92.4 92.4 92.7 92.7 92.7 92.7 92.7 92.7 92.8 92.8 92.8 9.8'E 12001 83.3 91.5 92.1 93.0 94.0 96.0 94.2 94.5 94.5 94.6 96.6 94.6 94.8 94.8 94.8 94.8

A[ 17001 83.3 91.9 92.5 93.6 94.5 94.5 94.8 95.0 95.0 95.1 95.1 95.1 95.3 95.3 95.3 91.3LIE 9UCl 03.5 92.1 92.8 93.8 94.9 94.9 95.1 95.4 95.4 95.5 95.5 95.5 95.7 95.7 95.7 9..7

.E 8001 8.5 92.4 93.( 94.2 95.3 95.3 95.5 95.8 95.8 95.9 95.9 95.9 96.1 96.1 96.1 96.1IE 7J pi 3.5 92.8 93.4 94.6 95.7 95.7 95.9 96.. 96.2 96.3 96.3 96.3 96.5 96.s 96.5 96.5uE 60 C 63.5 93.c 93.7 95.3 96.9 96.9 97.1 97.4 97.4 97.5 97.5 97.5 97.6 97.6 97.6 97.6

Z.E 19o 83.5 93.0 93.7 95.3 96.9 96.9 97.1 97.4 97.4 97.5 97.5 97.5 97.6 97.6 97.6 97.oI.E 49C3 d3.5 93.0 93.7 95.4 97.0 97.0 97.6 97.6 97.6 97.8 97.8 97.8 97.9 97.9 97.9 97.9U E 3371 a3.5 93.0 93.7 95.4 97.2 97.2 97.9 98.2 98.3 98.4 98.7 98.7 99.2 99.5 99.5 99.7

uE 2GCI 83.5 93.0 93.7 95.4 97.2 97.2 97.9 98.2 98.3 984 98.7 98.7 99.3 99.6 99.7 IC.0

.[ 1001 03.5 93.0 93.7 95.4 97.2 97.2 97.9 98.2 98.3 98.4 9S.7 98.7 99.3 99.6 99.7 100.0

U.E I 43.5 93.0 93.7 95.4 97.2 97.2 97.9 98.2 98.3 98.4 98.7 98.7 99.3 99.6 99.7 100.0

TOTAL NUMH6E OF OBSERVATIONS: 762

LJbAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURqENCE OF CEILING V8ESUS VISIBILIIY

SAFETAC FROM HOURLY OBSERVATIONS

Ii 6EAIHER SERVICE/MAC

STATION NUM.9LR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PEPIOD OF RECORO: 77-06MONTH: MAR HOURS(LSTI: 18.0-2000

• . ... ....° . .° . ... ... ... ... ... .. .. .. . . . . . . . . .. . . . . . . .....°. e . . . ° o * . . ..- .. ....° .... .°... .. ... .

• ILING VISIBILITY IN STATUTE MILES

i . I OE GE GE CE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 1o 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 a

.1 CEIL 44.2 49.6 49.8 49.8 49.8 49.8 49.8 49.8 '9.8 49.8 49.8 49.6 49.8 49.8 49.8 49.8

2 20000 '47.0 53.5 54.2 54.2 54.2 54.2 54.2 54.2 54.2 S4.2 54.2 54.2 54.2 54.2 54.2 54.21a0073 47.0 53.5 54.2 54.2 54.2 54.2 54.2 54.2 54.Z 54.2 54.2 54.2 54.2 54.2 54.2 54.2

.F 160011 47.0 53.5 54.2 54.2 54.2 54.2 54.2 5'4.2 54.2 54.2 54.2 5'4.2 54.2 54.2 54.2 54.2.1 1001 47.3 54.0 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7120001 47.8 55.2 55.8 55.9 55.8 55.8 55.8 55.8 55.8 55.8 55.8 55.8 55.8 55.8 ,5.8 55.8

E 100001 47.4 56.8 57.5 S7.5 57.5 57.5 57.5 57.5 57.5 -7.5 57.5 57.5 57.5 57.5 57.5 57.5A 97C0 49.4 56.8 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5

8000C 52.1 S9.4 60.4 6C.4 60.4 60.4 60.4 60.4 60.4 60.4 60.4 60.4 60.4 60.4 60.4 66.47700 53.2 60.6 61.6 61.6 61.6 61.6 62.6 61.b 61.6 61.6 61.6 61.6 61.6 61.b 61.6 61.6

a 600 1 53.5 60.9 61.9 61.9 61.9 61.9 61.9 61.9 b.9 61.9 61.9 61.9 61.9 61.9 61.9 61.9

.E 57001 54.4 61.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 62.7 (2.7Al E450CI 55.7 63.7 64.9 64.9 64.9 64.9 64.9 64.9 64.9 65.C 65.0 65.0 65.0 65.0 bs.0 65.0.5 '4707 56.8 66.8 68.0 6e.0 68.0 68.0 68.0 68.0 8.0 68.1 64.1 68.1 64.1 68.1 6S.1 66.1F, 350n1 67.9 72.1 73.b 73 b 73.6 73.6 73.6 73.6 73.6 73.7 73.7 73.7 73.7 73.7 73.7 73.7A 30UCj 64.9 79.0 80.5 8C.5 81.0 81.0 81.0 81.U 81.0 91.1 81.1 81.1 81.1 81.1 41.1 81.1

25C71 67.3 82.4 84.2 84.4 84.9 84.9 84.9 84.9 84.9 85.1 85.1 85.1 45.1 85.1 dS.1 85.1,5 2701 u8.0 84.2 86.0 86.2 86.7 86.7 86.7 86.7 86.7 87.0 87.0 87.0 87.0 A7.0 87.0 7.,A 180cl 68. 894.4 86.2 86.4 86.9 86.9 86.9 86.9 b6.9 87.2 87.2 87.2 87.2 87.2 87.2 67.2

S1J0c 68.8 85.9 87.7 87.8 88.5 88.5 88.7 88.7 88.7 89.0 89.0 89.0 89.0 49.0 89.0 69.U

F 12J71 6. 1 87.4 89.3 8S.5 90.3 90.3 90.5 90.5 9J.5 90.8 9.8 90.8 90.8 90.8 90.8 9L.8

Al 100 69.3 88.3 90.5 9E.6 91.8 91.8 92.0 92.0 92.0 92.3 92.3 92.3 92.3 92.3 97.3 92.393 9C I 69.6 89.3 91.6 91.6 92.9 92.9 93.1 93.1 V3.1 93.4 93.q 93.4 93.4 93.4 73.4 93.4

.F 803 67.6 89.3 91.6 91.8 92.9 92.9 93.1 93.1 93.1 93.4 93.4 93.4 93.4 93.4 93.4 93.4

. 7001 69.6 89.8 92.1 92.4 93.8 93.8 93.9 94.3 94.3 94.6 94.6 94.6 94.6 94.6 94.6 94.6.E 60CI 69.6 90.1 92.4 93.1 94.6 94.6 94.7 95.1 95.1 95.4 95.4 95.4 95.4 95.4 95.4 95.4

'L 9301 67.6 90.1 92.4 93.3 94.9 94.9 95.1 95.4 95.4 95.7 95.7 95.7 95.7 95.7 95.7 95.7

:,E 40C1 69.6 90.5 92.8 93.6 95.2 95.2 95.4 95.7 95.7 96.1 96.1 96.1 9b.2 96.2 76.2 96.2. 30C3 69.6 90.5 92.8 93.8 95.6 95.6 95.9 96.2 96.2 96.9 96.9 96.9 97.2 97.4 97.7 96.2., 20CI 69.6 90.5 92.8 93.8 95.6 95.6 95.9 96.2 96.2 97.2 9R.0 98.0 98.5 99.0 q9.3 99.8

E 1001 67.6 90.5 92.8 93.8 95.6 95.6 95.9 96.2 9b.2 97.2 98.0 98.0 98.5 09.0 99.5 115.0

'E 'I 69.6 90.5 92.8 93.8 95.6 95.6 95.9 96.2 96.2 97.2 9A. 98.0 98.5 99.0 99.5 1CE.0

TOTAL NUMBLR OF O9SERVATIONS: 639

.LOo.AL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILXIYUSFLIAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NL1BLR: 724916 STATION NAME: Fl ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAR HOURSILSTI: 2100-2300

,EILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE BE GE

FEET I 13 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5116 1/4 a

- 03 CEIL 1 45.1 53.3 53.5 53.7 53.7 53.7 54.0 54.0 54.0 54.0 54.0 54.0 54.0 54.0 54.0 54.0

- ')COVI 46.7 55.1 55.9 56.1 56.1 56.1 56.5 56.5 56.5 56.5 56.5 56.5 56.5 56.5 56.5 56.5- E 183 01 47.0 55.4 56.3 56.5 56.5 56.5 56.8 S6.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 5b.0(A 160001 47.0 55.4 56.3 56.5 56.5 56.5 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8 5b.d

E 140CC0 47.2 55.6 56.5 56.6 56.6 56.6 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 57.0 51.0LE 12C001 49.3 57.9 58.7 58.9 58.9 58.9 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3

60 IV,-O} 49.5 59.1 60.0 6C.1 60.1 60.1 60.5 60.5 60.5 60.5 60.5 60.5 60.5 60.5 bf?.5 6U.5, 9 U'l 49.5 59.1 60.0 6C.1 60.1 60.1 60.5 60.5 60.5 60.5 60.5 60.5 60.5 60.5 .0.5 6L.5, 80301 50.7 60.5 61.4 61.5 61.5 61.5 61.9 61.9 61.9 63.9 61.9 61.9 61.9 61.9 61.9 61.9E 70C1 51.6 61.5 62.4 62.6 62.6 62.6 62.9 62.9 62.9 62.9 62.9 62.9 62.9 62.9 b2.9 6i.9

,E bror| >2-1 62.2 63.1 63.3 63.3 63.3 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 b3.6 63.6

.E 5P001 52.8 63.1 64.G 64.2 64.2 64.2 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 .4.5 64.5,E 45001 53.1 64.0 65.2 65.4 65.4 65.4 65.7 65.7 b5.7 65.9 65.9 65.9 65.9 65.9 65.9 65.9

',E 400D) 54.2 67.3 68.5 68.9 68.9 68.9 69.2 69.2 69.2 69.4 69.4 69.4 69.4 69.4 b9.4 b9.4(,E 350C1 56.3 71.7 73.1 73.4 73.4 73.4 73.8 73.8 73.8 74.0 74.0 74.0 74.0 74.0 74.0 74.0

(E SCUI 58.6 75.5 77.1 77.4 77.4 77.4 77.8 77.8 77.8 78.0 75.0 78.0 78.0 78.0 78.0 7a.0

6E 25JO1 63.5 78.8 80.6 81.1 83.1 81.1 81.5 81.5 81.5 81.6 81.6 81.6 81.6 81.6 81.6 81.60E 200OJ 61.7 81.3 83.0 83.b 83.7 83.7 84.1 894.1 84.1 84.3 84.4 81.4 84.4 84.4 84.4 84.4

SE 18001 62.1 81.6 83.4 87.9 84.1 84.1 84.4 84.4 84.4 84.6 84.8 84.8 84.8 84.8 64.8 84.8

uE 150"I 62.6 82.9 84.6 85.1 85.3 85.3 85.7 85.7 85.7 85.8 86.0 86.0 86.0 86.0 86.0 86a.j

(,E 120ri 62.6 85.1 87.2 87.8 87.9 87.9 88.3 88.3 88.3 88.5 84.6 88.6 88.6 8.6 68.6 8b

.E 13001 62.9 46.7 88.8 85.3 89.7 89.7 90.0 90.0 90.0 90.2 90.4 90.4 90.4 90.4 90.4 9".4

,F 9001 62.9 86.9 89.0 85.5 89.9 89.9 90.2 90.2 90.2 90.4 91.6 90.6 90.6 90.6 9.6 9-.6L F0 1 63.1 87.9 90.0 9&.6 90.9 90.9 91.3 91.3 91.3 91.4 91.6 91.6 91.6 91.6 41.6 ;1.6"I 70r1 63.1 88.6 90.7 91.b 92.0 92.0 92.3 92.3 92.3 92.5 92.7 92.7 92.7 92.7 92.7 9c . 7

6E 6QC0 63.1 89.3 91.4 92.3 92.8 92.8 93.2 93.2 93.2 93.4 93.s 93.5 93.5 93.5 93.5 53.5

,,E 5031 63.1 89.7 91.8 9i.8 93.4 93.4 93.7 93.7 93.7 93.9 94.6 94.6 94.6 94.6 ;4.6 94.6>0 4001 03.1 90.2 92.3 93.4 94.2 94.2 94.6 94.6 94.b 94.8 95.5 95.5 95.5 95.5 95.5 90.5

! 001 63.1 90.2 92.3 9!.4 94.4 94.4 94.8 94.9 94.9 96.7 97.4 97.4 98.1 98.1 98.4 99.1u, 2UCI 63.1 90.2 92.3 9!.4 94.4 94.4 94.8 94.9 94.9 96.7 97.6 97.6 98.4 98.4 98.8 99.5

..C I301 63.1 9J.2 92.3 93.4 94.4 94.4 94.8 94.9 94.9 96.7 97.6 97.6 98.4 98.4 ?8.8 99.5

,E TI 63.1 90.Z 92.3 97.4 94.4 94.4 94.8 94.9 94.9 96.7 97.6 97.t 98.4 98.4 99.0 1OG.0

TOTAL NUMPER OF O8SERVATIONS: 512

L3,AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY1 AFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAR HOURSILST): ALL

IN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE GE

FEET lo 6 5 3 2 1/2 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

N3 C[rL 1 47.3 50.9 51.1 51.3 51.4 51.4 51.5 51.5 51.5 51.5 51.5 51.6 51.7 51.7 51.7 51.6

[ JcoCl 51.3 55.2 55.8 56.1 56.3 56.3 56.5 56.5 56.5 56.5 56.5 56.5 56.6 56.6 56.6 56.7E 6OCI 51.7 55.6 56.2 56.5 56.6 56.7 56.8 56.8 66.9 56.9 56.9 56.9 57.0 57.0 57.0 57.1

1,r 100C0 51.7 56.6 56.2 56.5 56.6 56.7 56.8 56.8 56.9 56.9 56.9 56.9 57.0 57.0 57.0 57.1vE 14rW11 ?.5 56.5 57.2 57.4 57.6 57.7 57.8 57.8 67.9 57.9 57.9 57.9 58.U 58.0 b8.0 56.1

E 127JOI S3.6 57.9 S8.6 58.8 59.0 59.1 59.3 59.3 59.3 59.3 59.3 69.4 59.4 59.5 59.S 69.6

, 10,011 55.9 60.3 61.0 61.3 61.5 61.6 61.7 61.7 61.7 61.8 61.8 61.8 61.9 61.9 t1.9 62.3-c 900C0 56.1 60.5 61.2 61.5 61.7 61.8 61.9 61.9 62.0 62.0 6?.0 62.0 62.1 62.1 b2.1 6-.2uE 8coc 57.9 62.5 63.2 6!.5 63.7 63.8 63.9 63.9 63.9 64.0 64.0 64.0 64.1 64.1 o4.1 64.2(bY 700 59.8 63.4 64.2 64.5 64.7 64.8 64.9 64.9 64.9 65.0 65.0 65.0 65.1 65.1 65.1 65.2uE 6"011 69.8 64.b 65.4 65.7 65.9 66.0 66.2 66.2 66.2 66.2 66.2 66.3 66.3 66.4 66.4 66.5

A7E 5C00 60.9 65.9 66.7 61.1 67.3 67.3 67.5 67.5 67.5 67.6 67.6 67.6 67.7 67.7 .7.7 67.8S4'0') 62.0 67.4 68.3 6e.7 68.9 69.0 69.1 69.1 69.2 69.3 69.3 69.3 69.4 69.4 69.4 69.5

., 4t'Cl 64.1 70.3 71.3 71.7 71.9 72.0 72.2 72.2 72.2 72.3 72.3 72.3 72.4 72.4 72.4 72.5GI 3S Jrj 6R.2 75.6 76.7 71.2 77.5 77.6 77.8 77.8 77.8 77.9 77.9 77.9 78.0 78.0 78.0 76.1bE 30001 71.9 40.7 81.9 82.5 83.0 83.1 83.3 83.3 83.3 83.4 83.4 83.4 83.5 83.5 .3.5 83.6

bE 2'001 73.2 83.1 84.5 85.2 85.7 85.8 86.3 86.0 86.0 86.1 86.1 86.1 86.2 86.2 86.2 8b.3.E 2r01 7.1 84.8 86.3 87.0 87.6 87.7 87.9 87.9 87.9 88.0 89.0 88.1 88.2 88.2 o8.2 8.3L, 19C^0 74.3 85.2 86.7 87.5 88.2 88.2 88.4 88.4 88.4 88.5 88.5 88.6 88.7 88.7 88.7 86.8bE 1'OPI 74.9 8b.7 88.Z 8q. 89.? 89.8 90.1 93.2 90.2 90.3 90.3 90.4 91.4 Q3.5 90.5 9L.6bE 121 715.3 88.0 89.6 9C.7 91.4 91.5 91.8 92.2 92.1 92.2 92.2 92.3 92.4 92.4 92.4 92.5

,E 10d 75.4 98.6 90.5 91.7 92.5 92.7 93.0 93.2 93.3 93.4 93.5 93.5 93.6 93.6 93.6 93.7.E 9CO 7S.5 q8.9 91.0 9;.2 93.1 93.3 93.6 93.8 93.9 94.0 94.1 94.1 94.2 94.2 94.2 94.3

GE er'l 75.5 89.Z 91.2 9Z.6 93.5 93.6 94.0 94.2 94.3 94.4 98.5 94.5 94.6 94.7 94.7 94.,

! 701 75.5 49.5 91.6 93.u 94.0 94.2 94.5 94.8 94.9 95.0 95.1 95.2 95.3 95.3 95.3 9b.4

GE 6,'1 7S.5 89.7 91.9 92.5 94.7 94.9 95.3 95.5 95.6 95.8 95.9 95.9 96.0 96.0 96.0 96.1

lE 6301 75.5 89.8 92.c 93.6 94.9 95.1 95.6 95.9 96.C 96.2 96.4 96.4 96.5 96.6 96.6 96.751 4ol 15.5 89.9 92.1 93.7 95.2 95.4 96.0 96.4 96.5 96.8 97.0 97.0 97.2 97.2 97.2 91.3LIE !,C7 75.5 99.9 92.1 9!.d 95.4 95.6 96.3 96.8 96.9 97.4 97.7 97.7 98.1 96.2 98.3 98.76F 2101 7 ,5 89.9 92.1 91.8 95.4 95.6 96.4 96.8 97.1 97.7 99.1 98.1 98.6 98.8 99.f 99.5

tE I0N| 75.5 89.9 92.1 93.6 95.5 95.7 96.4 96.9 97.1 97.7 98.1 98.2 96.7 98.9 99.1 99.8

6[ cl 75.5 89.9 92.2 9i.8 95.5 95.7 96.4 96.9 97.1 97.7 94.1 98.2 98.7 98.9 99.2 100.0

TOTAL NUMPED OF OBSERVATIONS: 4'lb

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISI8ILITYUSAfETAC FROM HOURLY OBSERVATIONS


STATION NUMRER: 724916 STATION NAME: rT ORO/FRITZSCHE AAF CA PEDIOO OF RECORO: 77-86MONTH: APR HOURSILST): 060-0800

CEILING VISIBILITY IN STATUTE MILESIN g GL GE GE LE GE GE GE GE GE GE GE GE GE GE GE 6E

FEET I D b 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 114 0

NC CEIL I 39.8 44.b 45.4 46.5 47.5 47.5 47.5 47.7 47.7 47.8 47.8 47.8 48.0 48.0 48.0 48.6

SL "3O 00i k3.6 48.6 49.4 5c.b 51.5 51.5 51.5 51.7 51.7 51.9 51.9 51.9 52.0 52.0 52.0 $2.7.S 180301 44.v 49.0 49.8 SC.9 51.9 51.9 51.9 52.0 52.0 52.2 52.2 52.2 52.3 52.3 52.3 53.0

,E 180UCI 44.1 49.1 49.9 51.3 52.0 52.0 52.0 52.2 52.2 52.3 52.3 52.3 52.5 52.5 52.5 53.114 WON 44.6 49.6 5C.4 51.5 52.5 52.5 52.5 52.7 52.7 52.8 52.8 52.8 53.0 53.0 53.0 53.6

,E 1200) 45.2 50.2 51.0 Se.2 53.1 53.1 53.1 53.3 53.3 53.5 53.5 53.5 53.6 53.6 53.6 54.3

11E 1oco0 I 41.0 52.2 53.1 54.3 55.2 55.2 55.2 55.4 55.4 55.6 55.6 55.6 55.7 55.7 55.7 56.4GE 9,0r) 47.O 52.2 53.1 54.3 55.2 55.2 55.2 55.4 55.4 55.6 55.6 55.6 55.7 55.7 55.7 56.4.E bu0 49.1 54.3 55.2 56.4 57.3 57.3 57.3 57.5 57.5 57.6 57.6 57.6 57.8 57.8 57.8 56.5

6E 7r'0 j 49.4 55.1 56.C 57.Z 58.1 58.1 58.1 58.3 58.3 58.5 58.5 58.5 58.6 p8.6 58.6 59.36E 6C001 49.4 55.4 56.4 57.5 58.5 58.5 58.5 58.6 58.6 58.8 5. 8 58.8 58.9 58.9 58.9 59.6

IE 5%1'1 '0.4 56.4 57.3 58.5 59.4 59.4 59.4 59.6 59.6 59.7 59.7 59.7 59.9 59.9 59.9 6L.5LE 45or1 52.C 58.3 59.3 6E.4 61.4 61.4 61.4 61.5 61.5 61.7 61.7 61.7 61.8 61.8 bl.8 62.,I.E 4%CI 52.Z 58.8 59.9 61.0 62.0 62.0 62.0 62.2 62.2 62.3 62.3 62.3 62.5 62.5 82.5 63.1., 39001 53.5 60.2 61.4 62.6 63.6 63.6 63.6 63.8 63.8 63.9 63.9 63.9 64.1 64.1 64.1 64.7

E 3C001 55.1 62.5 63.9 6-.2 66.2 66.2 66.2 66.3 66.3 66.5 66.5 66.5 66.7 66.7 66.7 67.3

CE ZCCI 55.7 64.1 65.5 66.8 67.8 67.8 67.8 68.0 68.0 68.1 68.1 68.1 68.3 68.3 68.3 6 .9GE 2OUC1 57.6 67.3 68.8 7C.0 ?1.0 71.0 71.0 71.2 71.2 71.3 71.3 71.3 71.5 71.5 71.5 7Z.1.! 1 A00 ,5 66.9 7C.4 71.7 72.6 72.6 72.6 72.8 72.8 72.9 72.9 72.9 73.1 73.1 73.1 73.8I.E 150rl 6,j.7 72.8 75.0 76.3 77.5 77.5 77.5 77.6 77.6 77.8 77.8 77.8 77.9 77.9 77.9 78.bGE 120C1 tO.7 73.1 75.6 77.3 78.4 76.4 78.4 78.6 78.6 78.7 78.7 78.7 78.9 78.9 78.9 79.5

GE IPOCI 6P.9 74.1 77.6 79.1 80.4 80.4 80.4 8C.5 80.7 80.8 80.8 80.8 51.2 81.2 81.2 81.6GE 9061 61.2 75.2 79.1 a L.5 82.1 82.1 82.1 82.3 62.4 82.6 82.6 82.6 82.9 A2.9 82.9 03.bGE 90c1 bl.8 76.2 8C.4 82.1 83.7 83.7 83.7 83.9 84.1 84.2 84.2 84.2 84.5 84.5 84.5 865.2GI 70CI 61.8 76.7 81.2 83.3 85.0 85.0 85.0 85.2 85.3 85.5 85.5 85.5 85.8 85.8 65.8 86.5

bE 60C1 61.8 77.3 81.8 84.1 86.2 86.2 86.2 86.3 86.5 86.6 86.6 86.6 87.0 87.0 67.0 87.6

GE 5ON 61.8 77.5 82.1 84.5 87.6 87.6 87.6 88.1 88.2 88.6 84.6 88.6 88.9 89.0 89.0 89.7GE 401 61.8 77.9 82.6 85.2 88.6 88.6 88.9 89.7 90.0 90.3 91.7 90.7 91.0 91.1 91.1 91.8,E T0 o 61.8 77.9 82.6 85.3 88.9 88.9 89.5 90.7 91.1 91.6 91.9 92.1 92.6 92.6 92.8 94.u00 2001 81.8 77.5 82.6 85.3 88.9 89.U 90.0 91.3 92.1 92.9 93.7 93.9 94.7 95.2 95.5 98.7

U E 100t 1. 9 77.9 82.6 85.3 88.9 89.0 90.0 91.3 92.1 92.9 93.7 93.9 95.0 95.7 96.1 99.5

GE 01 61.8 77.9 82.6 85.3 88.9 89.0 90.0 91.3 92.1 92.9 93.7 93.9 95.0 95.7 96.1 I1.0

TOTAL NUMMER OF OBSERVATIONS: 621

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILIN6 VFRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NtMPLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 77-86MONTH: APR HOURSILSTI: 09.3-1100

EILI'SG VISIBILITY 1N STATUTE MILESIN | GE GE GE CE GE GE GE (E GE GL GE GE GE GE GL bI

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 u

NO CEIL I 49.3 55.4 57.4 56.0 58.2 58.2 58.2 58.2 58.2 58.2 59.2 58.2 58.2 58.2 GV.Z 56.2

uE 20C01 S3.4 59.9 62.L 62.6 6?.0 63.u 63.0 63.0 63.0 63.0 63.0 63.0 63.3 63.C o3.3 t3.LGE 187001 54.1 60.7 62.7 62.4 63.8 63.8 63.8 63.8 63.8 63.8 63.8 63.8 63.8 63.8 b'.8 63.8E 1bO0CI 54.5 61.1 63.1 63.8 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1

F 14C001 55.3 61.9 63.9 64.5 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9E" 12003) 55.9 62.7 64.8 65.4 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8

1030CI 57.4 64.4 66.7 67.3 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7GE V'0T) 57.4 64.4 66.7 63.3 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.7,E 8C0C 58.9 66.2 68.4 6r.1 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 t9.5 69.5.E 7C001 59.3 66.5 68.8 65.5 69.8 69.b 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8

GE 6CO01 59.8 67.0 69.3 71.0 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 7L.3

GE 5003) 61.1 68.3 70.6 71.2 71.6 71.6 71.6 71.b 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6uE 450CI 62.2 69.7 72.C 72.8 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1uE 43O33 64.3 72.1 74.4 75.2 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5, E 3-03I 65.7 73.8 76.3 77.1 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 71.4GE 3rC03 b8.4 77.4 80.1 81.1 81.6 81.6 81.6 81.6 81.6 81.6 81.6 81.6 81.6 81.6 81.6 81.6

bE 2 3CI 69.3 79.1 81.7 82.8 83.! 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3uE 2nor 71.0 82.4 85.2 86.4 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.1 .I71 87.1:E IUCI 71.5 83.5 86.3 87.7 88.3 88.3 88.3 88.3 88.3 88.3 89.3 88.3 88.3 98.3 81.3 8b.3

$1 I03) 71.9 84.9 88.1 85.5 90.1 90.1 90.1 90.2 9G.2 90.2 97.2 90.2 90.2 90.2 50.2 90.2

AE 17331 72.2 86.3 89.7 91.1 91.8 91.8 91.8 91.9 91.9 91.9 91.9 91.9 91.9 91.9 91.9 91.9

bE 13331 72.4 87.3 91.C 92.5 93.2 93.2 93.2 93.4 93.4 93.4 93.4 93.4 93.4 93.4 93.4 93.4GE 9031 72.5 87.7 91.6 93.4 94.0 94.0 94.0 94.3 94.3 94.3 94.3 94.3 94.3 94.3 64.3 94.3. r 01l 72.5 98.3 92.1 94.3 94.9 94.9 94.9 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2:E 733) 72.5 88.1 92.4 94.8 95.9 95.9 95.9 96.3 96.3 96.3 96.3 96.3 96.3 96.3 96.3 9b.3

AE 60CI 72.6 88.3 92.9 91.4 97.2 97.2 97.2 97.6 97.6 97.6 97.6 97.5 97.6 97.6 97.6 97.6

GE 5CC 72.6 88.3 92.9 95.7 97.8 98.0 98.2 98.6 98.6 98.6 98.6 98.6 98.6 98.6 78.6 98.bGE 403G 77.6 88.3 92.9 95.6 98.0 98.2 98.6 99.1 99.2 99.2 99.4 99.4 99.4 99.4 99.4 99.4uE 3001 72.6 48.3 92.9 95.8 98.1 98.2 98.6 99.1 99.5 99.5 99.6 9),6 99.7 99.7 99.7 99.9

A[ 7031 72.6 88.3 92.9 95.8 98.0 98.2 98.6 99.1 99.5 99.5 99.6 99.6 99.7 99.9 99.9 106.0AE 0C) 72.6 88.3 92.9 95.0 98.0 98.2 98.6 99.1 99.5 99.5 99.6 99.6 99.7 99.9 99.9 1iu.0

E I r 72.6 88.3 92.9 95.8 98.0 98.2 98.6 99.1 99.5 99.5 99.6 99.6 99.7 99.9 99.9 100.0

IOTAL NUMPEP OF OBSERVATIONS: 789

LO6L CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUAFETAC FROM HOURLY ObSERVATIONSA 19 6EATHER SERVICE/MAC

t TIN NUMBLR: 724916 STATION KAME: FT ORO/FRITZSCHE AAF CA PCIO0 OF RECORO: ?7-86

MONTH: APR HOURSILSTI: 1230-1400

CEILIkrG VISIBILITY IN STATUTE MILES

; I 5E GE GE EE GE GE GE GE GE GE GE GE GE GE GE GE

FEEI I Ic 6 s 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 S/16 1/4 1

% CEIL 61.9 66.4 67.9 64.1 68.1 66.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 o.1 66.1

.1 CrC r 67.8 73.4 74.9 75.3 75.0 75.0 75.0 75.0 75.0 75.0 79.0 75.0 75.0 75.j 75.0 75.0

I SBiT .6.4 74.0 75.5 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.I

t 1 Coc# 6q.6 74.1 75.7 75.8 75.8 75.8 75.8 75.6 75.8 7 '.8 75.8 75.8 75.8 75.8 75.8 75.8

17 4fC-J 68.8 74.4 75.9 76.0 76.0 76.0 76.0 76.U 76.0 76.0 76.0 76.U 76.0 76.0 76.0 76.uE 12CCI 6.2 74.8 76.3 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4

I I C0 ,1 69.7 75.4 76.9 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.11 9COCL 69.7 75.4 76.9 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1

a 8000) 71.4 77.3 78.8 74.0 79.0 79.0 79.0 79.U 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.3ur

71001 77.0 77.9 79.5 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6LE 6C30 72.8 78.8 80.4 8C .s 80.5 80.5 80.5 80.5 80.5 80.5 80.5 80.5 83.5 80.5 60.5 8L..

LA 0 73.9 80.0 81.5 81.6 81.6 81.6 8.6 81.6 81.6 51.6 81.6 81.6 81.6 81.6 i1.6 81.64 450C 74.5 80.9 82.4 82.5 82.5 82.5 82.5 82.5 82.5 92.5 82.5 82.5 82.5 82.5 82.5 6.5

r 4-U-I 76.0 !2.6 84.2 84.3 84.5 84.5 84.5 84.5 84.S 84.5 84.5 84.5 84.5 84.5 64.5 84.5. 350C' 76.8 81.6 85.6 85.7 85.9 85.9 85.9 85.9 85.9 45.9 85.9 85.9 85.9 85.9 85.9 85.9

"r 300CI 79.7 67.8 89.6 85.9 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1 90.1 9L.1

2 -011 80.2 88.7 90.6 9L.9 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.15 20001 31.2 90.1 92.0 92.4 92.6 92.6 92.8 92.8 92.8 92.8 97.8 92.6 92.8 92.8 92.8 92.6

LA 18uI1 31.6 90.5 92.4 92.8 93.0 93.0 93.2 93.2 93.2 93.2 93.2 93.2 93.2 93.2 93.2 93.2

1 19 1 87.1 91.4 93.3 93.7 93.9 93.9 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0 9..01 21 d2.5 92.6 94.7 95.1 95.3 95.3 95.4 95.4 95.4 45.4 95.4 95.4 95.4 95.4 9S.4 9..4

o 10cc .3.4 93.9 96.3 9(.7 97.0 97.0 97.1 97.1 97.1 97.1 97.1 97.1 97.1 97.1 97.1 97.1.E 9001 3.4 94.0 96.6 97.1 97.3 97.3 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5AL MOCI a3.5 94.3 96.6 97.5 97.8 97.8 98.1 98.1 98.1 98.1 98.1 98.1 98.1 08.1 9.1 98.1

.2 70rJ 33.7 94.4 97.0 97.6 98.1 98.1 98.4 98.4 98.4 98.4 99.4 98.4 98.4 98.4 68.4 9o.q

,v 671(1 83.7 94.4 97.1 97.8 98.6 98.b 98.9 99.1 99.1 99.1 99.1 99.1 99.1 09.1 99.1 99.1

,5E .00 63.7 94.4 97.3 9e.1 98.9 98.9 99.1 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5L 401 4 37.7 94.6 97.5 98.2 99.1 99.1 99.4 I00.0 100.0 100.0 100.0 100.0 100.0 10;.0 1. )O.1. 32 l 8.7 94.6 97.5 08.2 99.1 99.1 99.4 1OO.0 100.0 100.0 100.0 100.0 100.0 100.0 1..0 100.3

.1 2301 8.7 94.6 97.5 98.2 99.1 99.1 99.4 10.0 100.0 100.0 100.0 100.0 100.0 100.0 IL.0 100.0C101 83.7 94.6 97., 98.2 99.1 99.1 99.4 1O0.U 100.0 100.0 100.0 100.0 100.0 10.0 1;0.0 1 .. 0

'I C) 03.7 94.6 97.5 98.2 99.1 99.1 99.4 100.0 100.0 100.0 100.0 100.0 100.0 I00.0 120.0 I0.1

TOTAL NJMER OF 05,ERVATIONS: 7.9

.L'JAL CL.MATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUkRENCE OF CILIN VERSUS VISIbILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STA71ON NAME: FT ORD/FRITZSCHC AAF CA PEPIOD OF RECORD: 77-86MONTH: APR HOURS(LSTI: 15,0-1703

CEILINGVISIBILITY IN STATUTE MILESIN I GE GE GE CE GE GE GE GE GE GE GE E C GE GE GE OF

FEET I 10 6 5 4 3 2 112 2 A 1/2 A 1/4 1 3/4 5/8 1/2 5/16 1/4 1.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... ...°............°........' . ....,.....,°... ....° . ° . , ,..

NO CEIL b9.7 63.9 64.9 64.9 64.9 65.0 65.0 65.0 .5.0 65.0 65.0 66.0 65.0 65.0 t5.0 65,

2000 C 66.5 71.3 72.2 72.2 72.2 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3IE 160001 67.4 72.2 73.2 73.2 73.2 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 77. 3 73.3.E 16C CC 67.4 72.2 73.2 73.2 73.2 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3

GE 14rjl .7.6 72.5 73.4 73.4 73.4 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 71.6 73.6

. 12r0Cl 66.1 73.Q 74.0 74.0 74.0 74.1 74.1 74.1 74.1 74.1 74.1 74.1 74.1 74.1 74.1 74.1

, 10UC 69.8 74.7 75.6 75.6 75.6 75.7 75.7 75.7 75.7 75.7 7S.7 75.7 75.7 75.7 75.7 75.7L 9'001 70.4 75.3 76.3 76.3 76.3 76.4 76.4 76.4 76.4 76.9 76.4 76.4 7b.4 76.4 76.4 76.4GE 8nuo 72.3 77.4 78.3 78.3 78.3 78.5 78.5 78.5 78.5 78.5 78.5 78.5 78.5 78.5 78.5 7 .t

LE 7r0C0 72.8 77.8 78.7 76.7 78.7 78.9 78.9 78.9 78.9 78.9 79.9 78.9 78.9 78.9 7P.9 76.9UE 67001 73.7 78.9 79.8 74.6 79.8 80.0 80.0 80. 80.0 80.0 83.0 80.0 80.0 8U.0 80.0 6L.0

CE 50011 74.8 80.J 8 1 81.1 81.2 81.2 81.2 81.2 81.2 83.2 812. 81.2 81.2 F1.2 82.2 91.2E 410 C1 75.2 80.5 81.6 81.6 81.6 81.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7 81.7 d1.7 81.7

..E 4r 01 75.7 82.1 83.1 83.1 83.1 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2 63.2 83.2.E 353r I 77.4 83.4 84.5 84.7 84.7 84.9 84.9 84.9 84.9 84.9 84.9 84.9 84.9 84.9 84.9 84.9

.A 3-001 79.4 86.0 87.2 87.5 87.5 87.6 87.6 87.6 87.6 87.6 87.6 87.6 87.6 87.6 67.6 87.6

-, 2 0rj 79.8 87.1 88.3 86.7 88.7 88.8 88.8 88.8 88.8 88.8 88.8 88.8 89.8 88.8 b8.8 86.8

,E 730IF 6.7 88.3 89.5 9C.1 90.1 90.2 90.2 90.2 90.2 90.2 93.2 90.2 90.2 90.2 30.2 90.2(1 FPCI 61.2 88.8 90.1 9C.b 90.6 90.7 90.7 90.7 90.7 90.7 90.7 90.7 90.7 QU.7 99.7 9L.7ur 15.01 81.9 89.9 91.3 91.6 91.8 92.0 92.1 92.1 92.1 92.1 92.1 92.1 92.1 92.1 92.1 92.1.E 12or 83.1 91.6 92.9 93.5 93.5 93.6 93.7 93.7 93.7 93.7 91.7 93.7 93.7 93.7 93.7 93.7

F Ir!01 C 3.9 93.2 94.6 95.1 95.2 95.4 95.5 95.5 95.5 Q5.5 95.5 95.5 95.5 95.5 55.5 95.5,E c93j 3.9 93.6 95.0 91.5 95.9 96.0 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 86.2 9'.2GE 8U17 *4.1 93.7 95.6 96.2 96.6 96.7 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 9b.9

7 7 CI 84.1 94.J 95.9 96.5 96.9 97.0 97.1 97.1 97.1 97.1 97.1 97.1 97.1 Q7.1 97.1 97.1

60I b4.2 94.4 96.7 97.5 98.0 98.1 98.2 98.4 98.4 98.4 9R.4 98.4 98.4 98.4 98.4 96.4

GE IClI 84.2 94.4 96.9 97.7 98.2 98.4 98.5 98.8 98.8 98.8 99.8 98.8 98.8 98.8 98.8 9

b.8fE 4 j 4.2 94.4 96.9 97.7 98.4 98.6 98.8 99.3 99.3 99.6 99.6 99.6 99.6 99.6 9.6 99.6

IF 11C o4.2 94.4 96.9 97.7 98.4 98.5 99.0 99.6 99.6 99.9 99.9 99.9 99.9 99.9 99.9 999,1E 2071 64.2 94.4 96.9 97.7 98.4 98.6 99.0 99.6 99.6 99.9 10n.0 100.0 100.0 IOU.0 1 LO.0 19U.0L[ E 071 b4.2 94.4 96.9 97.7 98.4 98.5 99.0 99.6 99.6 99.9 100.0 100.0 100.0 100.0 1 0.0 1C0.U

E I i3. 2 94.4 96.9 97.7 98.4 98.5 99.0 99.6 99.6 99.9 130.0 101.0 100.0 110.0 1 :0.0 106.U

TOTAL NUMbER OF OBSERVATIONS: 734

.L3AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYAF LTA( FROM HOURLY OBSERVAI3ONS

A1l .EATHER SERVICE/MAC

TVAIICN hU0e9R: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: APR HOURS(LS7): 18 0-2UU0..................................................... .I;.....;.'..'. ;......... [ .............................................

ILI VISIBILITY IN STATUTE MILS

IN I 76 GE IL cE GE GE GE GE GE GE GE 6E GE GE GE UEFEET 7 10 6 5 4 3 2 112 2 1 112 1 1/4 1 314 5/8 112 5/16 1/4 3

C E L 4 ,.3 6.,.1 b2.7 62.8 62.8 62.8 62.8 62.b 6Z.8 62.6 62.8 62.8 62.8 62.8 .2.8 62.8

-A 27701 6..2 67.1 68.2 68.4 6.4 68.4 68.4 68.4 68.4 68.4 6P.4 68.4 68.4 68.4 69.4 6..4F 1877r1 59.9 68.4 68.9 69,1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1

. 16nCpl S9.9 68.4 68.9 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 9.1 68.1

4 14 00 1.-o

69.5 70., 7C .2 70.2 7o.Z 70.2 70.2 70.2 70.2 71.2 70.2 70.2 70.2 70.2 7L.2

AI 23o 1A 1 69.6 70.2 7C.3 70.3 70.3 70.3 70.3 70.3 70.3 71.3 70.3 70.3 70.3 70.3 7L.3

S1000C 1 2.1 70.9 71.4 71.b 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.6 71.64 9%jr L2.5 71.2 71.7 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9

,0 8"31 f, .2 72.9 73.5 73.6 73.6 73.6 73.6 73.6 73.6 73.b 73.6 73.6 73.6 73.6 73.6 73.6

'E 770[ ub.f 74.7 75.2 75.4 75.4 75.4 75.4 75.4 75.4 75.4 76.4 75.4 75.4 75.4 7S.4 7S.4I ")03a1 .8.1 76.8 77.3 77.5 77.5 77.5 77.5 77.5 77.5 77.6 .S 77.5 77. 77. 77.5 77.S

V 07r1 9 bl. 78.2 78.7 7E.9 78.6 78.9 78.9 78.9 78.9 78.9 79.9 78.9 78.9 78.9 78.9 os.9

F7 4 7,I 70.3 79.. 79.9 0C.1 81.1 80.1 80.1 80.1 80.1 80.1 8r.1 80.1 80.1 90. 1 J .. 1 L.14' 4701 71.7 90.8 81.5 91.8 81.8 81.8 81.8 81.8 81.8 81.8 81.9 81.8 81.8 81.8 61.8 81.3. 350,1 72.6 81.7 82.4 62.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7 8Z.7 87.7 8-.7

F 3COC 73.6 83.1 84.3 84.b 84.6 84.b 84.6 84.6 84.6 84.6 84.6 84.6 84.6 84.6 64.6 84.6

f_ 2I.1c 7!.A 84.1 85.3 81.7 85.7 85.7 86.7 8 .7 86.7 5.7 85.7 85.7 85.7 85.7 b5.7 !,.729;C 74.7 85.2 86.4 9;.7 86.7 86.7 86.7 86.7 66.7 F6.7 86.7 86.7 86.7 96.7 66.7 Ft.7I4 a r-l 74.9 85.7 86.9 87.3 87.3 87.3 87.3 87.3 87.3 87.3 87.3 87.3 87.3 P7.3 j7.3 F7.3

.6 1607 75.4 87.6 88.8 89.2 89.2 89.2 89.2 89.2 89.2 89.2 8q.2 89.2 89.2 89.2 b9.2 89.2

F 17CC 15.4 88.7 89.9 9c.2 90.2 92.2 90.2 90.2 90.2 90.2 99.Z 90.z 90.2 90.2 i7.2 9,.2

.F 1271 77.5 90.2 91.9 91.8 91.8 91.8 91.8 91,8 91.8 91.8 91.8 91.8 91.8 91.8 91.8 9;.8bF q-r1 79.4 91.3 92.5 9 .8 92.8 92.b 92.8 92.8 92.8 92.8 97.8 92.8 92.8 92.8 .2.8 9,86", Ot'1 71.7 91.6 93.4 9i.? 93.7 93.7 93.7 93.7 93.7 93.7 91.9 93.9 99.1 94.1 94.1 99.1

4E 7UC7 79.4 92.7 94.6 94.9 94.9 94.9 94.9 94.9 94.9 94.9 9.1 95.1 95. 95.3 95.3 95.3

F, 6C0 79.4 92.8 95. 9.8 95.8 96.8 96.6 96. 8 9 8 9 94.0 96.0 96.2 96.2 96.2 Qo.2

[ c 6 r

79.4 9 .0 95.6 9(.6 96.2 9L.2 96.2 96.3 96.3 96.3 96.5 96.6 96.7 9b.7 96.3 96.7W! 4'0 79. 93.0 95.6 96.3 96.9 96.9 97.0 97.9 97.9 97.4 97.6 97.6 97.7 97.7 97.7 97 .7

.4 3UC 79.4 93.C 95.8 98.6 97.1 97.0 97.4 97.7 97.7 97.9 98.3 98.b 99.0 99.0 99.0 94.3.,( 2001 79.4 93.1 95.8 96.6 97.1 97.0. 97.6 97.9 97.9 98,1 98.4 98.8 99.7 99.8 99.8 99.807 I100 79.4 93.0 95.8 9 .S 97.0 97.0 97.6 97.9 97.9 98.1 989. 986. 99.7 100.0 1,O0 1o3.0

GE f1 79.4 93.0 95.6 96.5 97.C 97.0 97.6 97.9 97.9 98.1 9A.4 98.8 99.7 10.O0 120.0 100.0

TOTAL NIJMSLR OF OBSERVATIONS: 673

GL3bAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER. 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEIO0 OF RCCOR: 77-86MONTH: APR HOURS(LST): 2100-2300

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFELT I 10 6 s 4 3 2 1/Z 2 1 1/2 1 1/4 1 3/4 5/8 l/Z 5/16 1/4 G

N. LEIL I 57.5 66.8 67.4 61.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.6 67.6 67.6 67.6 67.b

[,E Z],0(1 58.8 68.5 69.1 65.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.3 69.3 69.3 Eq.3 69.3GE 18f'00 59.4 69.1 69.6 69.b 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.8 69.8 69.8 69.8 69.8LE 16CO'i 59.4 69.1 69.6 64.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.8 69.8 69.8 69.8 69.8

GE 140001 60.2 69.8 70.4 TC.4 70.4 70.4 70.4 70.4 70.4 70.4 70-4 70.6 70.6 70.6 70.6 7L.6

GE 12C00 60.3 70.4 71.0 71.0 71.0 71.0 71.0 71.0 71.0 71.0 71.0 71.2 71.2 71.2 71.2 TI.2

UE IZ P001 60.9 71.0 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.7 71.7 71.7 71.7 71.7GE 0001 oi.3 71.3 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 72.1 72.1 72.1 72.1 72.1liE 8001 61.9 71.9 72.5 72.5 72.5 72.5 72.5 72.5 72.S 72.5 77.5 72.7 72.7 72.7 72.7 72.7

6E 7000f 62.6 72.7 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.4 73.4 73.4 73.4 73.4

OE 60U01 64.3 74.6 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.3 75.3 75.3 75.3 75.3

GE 5301 66.8 77.2 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 78.0 78.0 18.0 78.0 78.0CE 4E01l 67.7 78.7 79.3 79.3 79.3 79.3 79.3 79.3 79.3 79.3 79.3 79.5 79.5 79.5 79.5 79.5,E 40001 67.9 79.1 79.7 79.7 79.7 79.7 79.7 79.7 79.7 79.7 79.7 79.9 79.9 79.9 79.9 79.9

E 3S0( b8.7 79.9 80.5 8c.5 80.5 80.5 80.5 80.5 80.5 80.5 80.5 80.6 80.6 80.6 80.6 8L.6

GE 300C1 69.8 81.8 82.4 82.5 82.5 82.5 82.5 82.5 82.5 82.5 82.5 82.7 82.7 82.7 82.7 81.7

GE 250Z1 71.0 83.7 84.3 84.4 84.4 94.4 84.4 84.4 84.4 84.4 84.4 84.6 84.6 84.6 64.6 84.6F 2O l 72.5 86.0 86.5 86.7 86.7 86.7 86.7 86.7 86.7 86.7 86.7 86.9 86.9 86.9 e6.9 86.9

1 001 72.9 P6.3 86.9 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.1 87.3 87.3 87.3 67.3 87.3

bE 15001 73.4 88.2 88.8 89.0 89.0 89.0 89.0 89.0 89.0 89.0 89.0 89.2 89.2 89.2 89.2 89.2

GE 1?Ucl 73.8 89.4 89.9 9C.1 90.1 90.1 90.1 90.1 90.1 90.1 93.1 90.3 90.3 90.3 J0.3 9 .3

uE 1 OnI 74.4 90.1 90.7 91.9 90.9 90.9 91.1 91.1 91.1 91.1 91.1 91.3 91.3 91.3 91.3 91.31E 9LI1 74.8 90.9 91.5 91.7 91.7 91.7 91.8 91.8 91.8 91.8 91.8 92.0 92.0 92.0 92.0 92.JGE POFI 7 a.0 91.3 91.8 92.1 92.0 92.0 92.2 92.2 92.2 92.2 92.2 92.4 92.4 924 92.:4 92.4,E 7013 75.7 93.2 93.7 93.9 93.9 93.9 94.1 94.1 94.1 94.1 94.1 94.3 9943 94.3 94.3 94.3

u 6LCI 75.9 93.7 94.3 94.5 94,5 94.5 94.7 94.7 94.7 94.7 94.7 94.9 94.9 94.9 94.9 94.9

UE 5111 75.9 94.1 95.3 9E.8 96.0 96.0 96.2 96.2 96.2 96.2 96.2 96.4 96.4 96.4 96.4 96.4,E 4001 75.9 94.1 95.3 96.u 96.4 96.4 96.6 96.6 96.6 96.8 96.8 97.0 97.0 97.0 97.0 97.,.E !001 75.9 94.1 95.4 96.6 97.0 97.0 97.7 97.7 97.7 98.1 98.1 98.3 98.5 98.7 98.7 9a.7

,E 200' 73,.9 94.1 95.4 98.6 97.0 97.0 97.7 97.7 97.7 98.3 98.5 98.7 99.1 99.2 99.2 99.2

-F loJ 75.9 94.1 95.4 96.6 97.0 97.0 97.7 97.7 97.7 98.3 98.5 98.7 99.4 99.8 99.8 99.8

liE c 75.9 94.1 95.4 96.6 97.0 97.0 97.7 97.7 97.7 98.3 98.5 98.7 99.4 99.8 99.8 106.0


,L)bAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY',SA ETAC FROM HOURLY OBSERVATIONSATR WFAIHER SERVICE/MAC

ST41ION NUMPER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PE9IOD OF RECORD: 77-86MONTH: APR HOURS(LST): ALL

SOILINGVSILTYISTTEMIS

IN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE UE

rrET IQ 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/9 5/8 1/2 5/16 114 u

N' CEIL I 54.0 59.9 01.0 61.4 61.5 61.6 61.6 61.6 61.6 61.6 61.6 61.6 61.7 61.7 61.7 61.8

E Zzoorl SA.6 65.1 66.3 66.6 66.8 66.8 66.8 66.9 66.9 66.9 66.9 66.9 66.9 66.9 66.9 67.E0 18001 59.3 65.8 66.9 67.3 67.5 67.5 67.5 67.5 67.5 67.6 67.6 67.6 67.6 67.6 67.6 67.7F lboorl 59.4 65.9 67.0 67.4 67.6 67.6 67.6 67.7 67.7 67.7 67.7 67.7 67.1 67.7 67.7 67.8

i, l4rC 67.0 66.5 67.6 68.0 68.2 68.2 68.2 68.2 6a.2 68.3 68.3 68.3 68.3 68.3 .8.3 68.4

.E 127001 60.4 67.0 68.2 6E,5 68.7 68.8 68.8 68.8 68.8 68.8 68.8 68.8 68.9 68.9 C8.9 69.

60 12C 61.6 68.3 69.5 65.9 70.1 70.1 70.1 70.1 70.1 70.2 70.2 70.2 70.2 70.2 10.Z 7U.3'F 9 00 61.8 68.5 69.7 71.1 70.3 70.3 70.3 70.4 70.4 70.4 70.4 70.4 70.4 70.4 70.4

7u.5

S I 8a00 .3.4 70.3 71.5 71.8 72.1 72.1 72.1 72.1 72.1 72.1 72.1 72,2 72.2 72.2 72.2 72.3F 7('001 64.1 71.0 72.2 72.6 72.8 72.8 72.8 72.8 72.8 72.9 72.9 72.9 72.9 72.9 72.9 7S-JbE 60001 65.0 72.1 73.3 73.6 73.9 73.9 73.9 73.9 73.9 73.9 73.9 74.0 74.0 74.0 74.0 74.1

5E 57G0C 66.4 73.4 74.7 75.0 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.4 7504 75.4 7S.4 75.5,C 4OCCI 67.3 74.7 75.9 76.3 76.5 76.5 76.5 76.5 76.1 76.6 76.6 76.6 76.6 76.6 16.6 76.7.E 40001 6 . 76.1 77.4 71.8 78.0 78.1 78.1 78.1 78.1 78.1 7R.1 78.1 78.2 78.2 78.2 76.3

LE 35gr1 69.5 77.3 78.7 7S.2 79.4 79.5 79.s 79.5 79.5 79.5 79.5 79.5 79.6 79.6 79.6 79.7

GE 3001C 71.5 80.1 81.7 82.2 82.5 82.5 82.5 82.6 8Z.6 82.6 82.6 82.6 82.6 82.6 82.6 82.7

25001 72.1 81.4 83.0 83.6 83.9 83.9 83.9 84.0 89.0 84.0 84.0 90 84.0 84.0 84.0 94.16r Z0oc 73.4 83.5 85.1 85.6 86.1 86.2 86. 2 86.2 86.2 86.2 86.2 86.3 86.3 86.3 863 86.4.0 18001 73.9 84.3 85.9 86.6 86.9 87.0 87.0 87.0 87.0 87.0 87.1 87.1 87.1 87.1 87.1 87.2

, 0 11001 74.7 86.0 87.9 88.6 88.9 89.0 89.0 89.1 89.1 89.1 89.1 89.1 89.1 89.1 89.1 89.2

CE 12001 75.3 87.2 89.2 89.9 90.3 90.3 90.4 90.4 90.4 90.4 90.4 90.5 90.5 90.5 90.5 9U.6

ca 10001 75.8 88.4 90.7 91.9 91.8 91.8 91.9 92.0 92.0 92.0 92.0 92.1 92.1 92.1 92.1 92.2(c 9001 76.1 89.0 91.4 92.2 92.7 92.7 92.8 9Z.9 92.9 92.9 92.9 93.0 93.0 93.0 93.0 93.1

. POrl 76.3 89.4 92.0 93.0 93.5 93.6 93.7 93.7 93.8 93.8 93.8 93.8 93.9 93.9 93.9 94.05E 7201 76.5 90.0 92.7 93.8 94.4 94.5 94.6 94.7 94.7 94.7 94.7 94.8 94.8 94.8 94.8 94.9

E1 6E01 76.6 90.3 93.3 94.5 95.4 95.4 95.5 95.7 95.7 95.7 95.7 95.8 95.8 95.8 95.8 95.9

L0 50CI 76.6 90.4 93.5 94.9 96.1 96.1 96.3 96.6 96.6 96.6 96.7 96.7 96.8 96.8 96.8 96.9.0 4001 76.6 90.5 93.6 95.1 96.5 96.5 96.8 97.3 97.4 97.5 97.6 97.6 97.7 97.7 97.7 97.8.0 I00| 76.6 90.S 93.7 91.2 96.6 96.7 97.1 97.7 97.8 98.0 98.2 98.3 98.4 98.5 98.5 98.71 2001 76.6 90.5 93.7 95.2 96.6 96.7 97.2 97.8 98.U 98.3 98.5 98.6 99.0 99.1 99.2 99.7

.1 IC 76.6 90.5 93.7 9t.2 96.6 96.7 97.2 97.8 98.0 98.3 98.5 98.6 99.1 99.3 99.4 99.9

.0 Cl 76.6 90.5 93.7 91.2 96.6 96.7 97.2 97.8 98.0 98.3 98.5 98.6 99.1 99.3 89.4 100.0

TOTAL NUMPLq OF OBSERVATIONS: 4C33

tCAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY.SAFiLTAC FROM HOURLY OBSERVATIONSAid W[ATHF SERVICE/MAC


MONTH: HAY HOURS(LSTI: U600-0800

AiL. ISIl' BILITY IN STATUTE MILES1. I GE GE GE cE GE GE GE GE GE GE GE GE GE GE GE LE

FEE I IT 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 C IL I 46.4 37.2 38.6 35.4 39.6 40.1 40.1 40.1 40.1 40.2 40.2 4C.2 40.6 40.6 40.7 40.9

A .101 27.8 39.2 40.6 41.4 42.0 42.4 42.5 42.5 42.5 42.6 42.6 42.6 43.1 43.1 43.2 43.3E 167 01 27.8 39.Z 40.6 41.4 42.0 42.4 42.5 42.5 42.5 42.6 47.6 42.6 43.1 43.1 43.2 43.3t 1600I -27.9 39.4 40.7 41.6 42.1 42.5 42.6 42.6 42.6 92.8 42.8 42.8 43.2 43.2 43.3 43.5

,A 14r3cl ls.1 39.5 41.0 42.0 42.5 42.9 43.1 43.1 43.1 43.2 43.2 43.2 43.6 43.6 43.7 44.0.' 120001 29.9 40.5 42.0 42.9 43.5 43.9 44.0 44.0 44.0 44.1 44.1 44.1 44.7 44.7 44.8 45.1

IF 100001 33.1 42.0 43.5 44.4 45.0 45.4 45.5 45.5 45.5 45.6 45.6 45.6 46.2 46.2 46.3 46.6CE 9-00 30.2 42.1 43.6 44.6 45.1 45.5 45.6 45.6 45.6 45.8 45.8 45.8 46.3 46.3 46.5 4b.7LAF 8001 31.1 42.9 44.4 45.4 45.9 46.3 46.5 4b.6 46.5 46.6 46.6 46.6 47.1 47.1 47.3 47.5

U E 7rOo 31.2 43.1 44.6 4E.5 46.0 4b.5 46.6 46.6 46.6 46.7 46.7 46.7 47.3 47.3 47.4 47.7

LE 69C0 31.2 43.1 44.6 45.5 46.0 46.5 46.6 4b.6 46.6 46.7 46.7 46.7 47.3 47.3 .7.4 47.7

E 5C001 31.6 43.5 45.C 45.9 46.5 46.9 47.0 47.0 47.0 47.1 47.1 47.1 47.7 47.7 47.8 46.1,E 4cOPI 31.7 43.7 45.2 46.2 46.7 47.1 47.3 47.3 47.3 47.4 47.4 47.4 48.0 48.0 48.1 48.4S E 41C0l 12.4 44.4 45.9 46.9 47.4 47.8 48.0 48.0 48.0 48.1 48.1 48.1 48.6 48.6 48.8 49.UOF 35701 34.1 46.2 47.7 48.6 49.2 49.6 49.7 49.7 49.7 49.9 49.9 49.9 50.4 50.4 50.5 5L.8bE 300C0 36.2 49.3 51.0 51.9 52.5 52.9 53.0 53.0 53.0 53.1 53.1 53.1 53.7 53.7 53.8 54.1

.E 25001 40.1 53.7 55.3 56.3 56.8 57.2 57.8 57.4 57.4 57.5 57.5 57.5 58.0 58.0 58.2 58.43E 2001 '44.1 59.1 61.0 62.0 62.5 62.9 63.1 63.1 63.1 63.2 63.2 63.2 63.8 63.8 63.9 64.2LE 1803I 44.8 59.9 62.0 62.9 63.5 63.9 64.0 64.0 6q.0 64.2 64.2 64.2 64.7 64.7 64.9 65.1- E 15310 46.3 62.3 64.3 65.3 65.8 66.2 66.5 66.5 66.5 66.6 66.6 66.6 67.2 67.2 67.3 67.b

GE 170C1 47.3 64.0 66.3 67.3 67.8 68.3 68.7 68.7 66.8 69.1 69.1 69.1 69.6 69.6 69.8 7L,0

SE 10001 47.4 65.1 67.8 65.3 69.9 70.3 70.7 70.7 70.8 71.1 71.1 71.1 71.7 71.7 71.8 72.1UE 9001 47.7 67.6 70.7 72.3 72.9 73.3 73.8 73.8 74.0 74.3 74.3 74.3 74.8 74.6 74.9 75.2VE 8dO0 47.8 68.4 72.2 74.1 74.8 75.2 75.9 75.9 76.0 76.3 76.3 76.3 76.8 76.8 77.0 77.2SE 7Jo7 47.8 69.6 73.6 76.6 77.7 78.1 78.7 78.9 09.0 79.3 79.3 79.3 79.8 79.8 80.0 8L.2

E bOl 47.8 70.U 74.5 78.1 79.7 80.2 80.9 81.3 81.6 82.0 82.0 82.0 82.6 82.6 82.7 83.0

UE 53c0 47.8 70.3 75.7 8E.5 82.7 83.4 84.5 85.0 85.3 86.0 86.1 86.1 86.8 86.8 86.9 67.2SE 4101 47.8 70.3 76.6 81.7 84.6 85.6 87.3 88.8 89.4 90.1 91.2 9.2 91.1 91.1 91.4 92.USE 3001 47.8 70.3 76.6 81.9 85.3 86.4 88.6 90.6 91.3 92.0 92.5 92.5 94.4 94.8 95.1 95.8UE 2001 47.8 70.3 76.6 81.9 85.3 86.6 88.8 90.9 91.7 92.5 93.2 93.5 95.8 96.9 97.7

9d.6

GE 1071 47.8 70.3 76.6 81.9 85.3 86.6 89.0 91.0 92.0 92.8 93.5 93.7 96.2 97.5 98.6 100.0

LE 01 41.8 70.3 76.6 81.9 85.3 86.6 89.0 91.0 92.0 92.8 93.5 93.7 96.2 97.5 98.6 100.0

*.°.......... .......................................................................... ..... . .............................

TOTAL NUM9LR OF OBSERVATIONS: 734

-f_

ICLAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFLTAC FROM HOURLY OBSERVATIONS

AIR .EAIHER SERVICE/MAC

TATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: MAY HOURS(LSTI: 0900-1100

EC£LINO VISIBILITY IN STATUTE MILES

IN IGE GE GE GE GE GE GE GE GE 6E GE GE GE GE GE 6EFEET I 0 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4 0

.0 CEIL 46.3 55.5 56.4 56.5 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6 56.6

i.E 20CC11 50.0 59.7 60.6 6C.8 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 6L.9. E 18 COCI 5n.o 59.7 60.6 6C.8 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 b.9(E 16r00 53.0 59.7 60.6 6C-8 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.9 60.96E 14'DC0 50.0 59.9 60.8 61.1 61.Z 61.Z 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2,,E 120001 50.6 60.6 61.6 61.8 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.U

E 1:JC01 513 61.5 62.5 62.7 62.8 62.8 62.8 62.8 62.8 62.8 62.8 62.8 62.8 62.8 62.8 62.8,r 9C001 51.3 61.7 62.7 63.0 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.1 63.16E 8'UOI 51.9 62.3 63.4 61.o 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7.. E 700I 52.3 62.7 63.7 64.0 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1

,[600CI 52.4 62.8 63.9 64.1 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2 64.2

',E 5"OCI 53.2 63.5 64.5 64.8 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.94E 500C1 53.4 63.9 64.9 65.1 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3

E 4'G 53.9 64.4 65.4 65.6 65.8 65-68 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.4i5E 3501i 57.1 67.6 68.6 68.d 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.U 69.0 69.0 69.0 69.0bE "C01 69.9 71.9 72.9 73.2 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3

,E 2Sj1C 64.9 76.G 77.0 77.2 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4UE 2OCI 06.9 78.4 79.6 7s.9 80.0 80.0 80.0 80.0 80.0 80.0 81.0 80.0 80.0 80.0 80.0 80.0UE 18U1 67.6 79.1 80.4 8.7 80.8 AU.8 80.8 80.8 8U.8 80.8 80.8 80.8 80.8 80.8 60.8 8L.8GC 15011 69.6 80.6 82.4 82.8 83.0 83.0 83.0 83.0 83.0 83.0 83.0 83.0 83.0 83.0 63.0 83.UUE 12001 70.2 84.0 85.6 86.0 86.1 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3 86.3

UE l'001 70.7 87.2 88.9 85.4 89.6 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.7 89.1 89.7 89.7GE qGC1 70.7 88.5 90.6 91.2 91.3 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5 91.S 91.5 91.5Jr 80r1 71.C 89.8 92.1 93.u 93.1 93.4 93.4 93.4 93.4 Q3.4 93.4 93.4 93.4 93.4 93.4 93.4.5 7001 71.1 90.7 93.3 94.3 94.5 94.6 94.9 94.9 94.9 94.9 94.9 94.9 94.9 94.9 94.9 94.9CC P0l| 72.1 91.3 94.7 95.7 96.2 96.6 96.8 96.8 96.8 96.8 96.8 96.8 06.8 96.8 96.8 96.8

11E 5:il1 71.1 91.6 95.4 96.9 98.0 98.3 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.6GO 4 rj 71.1 91.6 95.5 97.3 98.5 96.9 99.2 99.2 99.2 99.5 99.7 99.7 99.9 99.9 99.9 99.9LE 3001 71.1 91.6 95.5 93.3 98.5 98.9 99.2 99.2 99.2 99.5 99.9 99.9 100.0 100.0 100.0 IU.UGi 2001 71.1 91.6 95.5 97.3 98.5 98.9 99.2 99.2 99.2 99.5 99.9 99.9 100.0 100.0 100.0 1U.',E loci 71.1 91.6 95.5 97.3 98.5 98.9 99.2 99.2 99.2 99.5 99.9 99.9 100.0 10.0 1C0.0 10.0

I C1 71.1 91.6 95.5 97.3 98.5 98.9 99.2 99.2 99.2 99.5 99.9 99.9 100.0 100.0 100.0 100.0

ITtL NUMPLR OF OBSERVATIONS: 786

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

uSAFETAC FROM HOUPLY OBSERVATIONS

AIR JEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORO: 77-86MONTH: MAY HOURS(LST): 12LOC-14U

CE ILItU6 VISIBILITY iN STATUTE MILES

114 GE GE GE CE GE GE GE GF GE GE GE GE GE GE GE UE

FEET it) 6 5 4 3 2 1/2 2 1 1/2 1 114 1 31/ 5/8 112 :/16 1/4 u

NO CEIL 1 61.1 67.7 68.2 6E.2 68.2 68.Z 68.2 68.2 68.2 68.2 68.2 68.2 68.2 68.2 b8.2 6b.2

GE 2G00CI 65.9

73.0 73.5 73.5 73.S 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.GE i8r0o0 66.4 73.5 74.V 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 7o.GGE 1600CI 66.4 73.5 74.C 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.0 74.l0 7,4

GE 140001 66.9 74.0 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.b 74.6 74.6 14.6 74.b

UE 12o01 67.8 74.9 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4

GE 1l0ool b9.0 76.1 76.6 76.. 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 76.6 7..6GE 9000j 69.2 76.3 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.6 76.8 7b.83E 60001 70.2 77.4 77.9 77.9 77.9 77.9 77.9 77.9 77.9 779 77.9 77.9 77.9 77.9 77.9 77.9

GE 7COOl 70.4 77.5 78.0 78.0 78.0 78.G 78.0 78.0 78.0 78.0 7A.0 78.0 78.0 78.j 78.0 70.3

.E 600C1 7C.6 77.7 78.2 78.2 78.2 78.2 78.2 78.2 78.2 78.2 7q.2 78.2 78.2 78.2 79.2 76.2

GE 5CO01 71.0 78.2 78.8 78.8 78.8 78.6 7.8 78.A 76.8 78.8 7A.8 78.8 74.8 78.8 78 76.8GE 4s0'1 71.0 76.2 78.8 78.8 78.8 78.8 78.8 78.8 70.8 78.8 7R.8 78.8 78.8 7d.8 79.6 76.8.E 40001 71.4 78.9 79.4 7S.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.% 79.4 79.4 79.4 7Y.4

lE 3S00I 74.0 81.b 82.1 82. 1 8.1 82.1 AZ.1 82.1 82.1 42.I 8Z.1 82.1 82.1 62.1 62.1 R.1GE 30C11 76.5 84.0 84.5 84.5 84.5 84.5 84.5 84.5 84.5 44.5 84.5 84.5 84.5 P4.5 b4.5 b4.5

E 25,C1 77.4 84.9 85.4 84.4 85.4 85 4 85.4 85.4 86.4 45.4 8 .4 84.4 85.4 05,4 65a4 66.4GE 20001 78.1 85.9 86. 6 86 6 86 86.6 8.6 86.6 866 86 86.6 86.6 8bb

tlF 18101 7Q.2 86.1 86.9 86.9 86.9 86.9 86.9 86.9 bb.9

P6.9 86.9 86.9 86.9 96.9 86.9 86.9G E lOol 78.9 87.5 88.4 8E.4 88.4 86.4 88.4 88.4 68.4 88.4 8-.4 88.4 88.4 8.4 3 .4 48.4GE 120CI 60.9 90.6 91.6 91.) 91.5 91.5 91.5 91.5 9L.5 91.5 91.5 91.5 91.5 91.5 91.5 91.5

GE ic1i 81.6 92.6 94.1 94.1 94.1 94.1 94.1 94.1 94.1 94.1 94. 1 94.1 94.1 94.1 94.1 94.1GO 9001 61.6 93.3 94.8 9,.8 94.8 94.8 94.8 94.6 94.8 94.8 94.8 94.8 94.8 94.8 94.8 94.6.E 8001 81.7 93.8 95.3 95.3 95.4 95.4 95.4 95.4 95.4 95.4 95.4 95.4 95.4 95.4 9S.4 9!.4GE 73C1 42-2 94.7 96.3 96.3 96.4 96.4 96.4 9b.4 96.4 9. 4 96.4 96.4 96.4 96.9 96.4 9b.4GE 6001 82.6 96.1 97.6 93.8 98.L 98. 9.0 98.0 96.0 94.1 94.3 99.z 98.1 48.0 98.0 98.0

GE 5011 82.6 96.9 98.9 96.9 99.1 99.1 99.1 99.1 99.1 99.1 9Q.1 99.1 99.1 99.1 19.1 99.1IE 4001 62.6 96.9 98.9 98.9 99.1 Q9. 1 99.1 99.2 94.2 99.2 99.7 09.2 99.2 99.2 99.2 99.eGE 3T 1 T2.6 97.2 99.1 9.14 99.6 99.7 99.? 99.9 99,9 99.9 99.9 99.9 99.9 1iO.0 100.0 OU.U

GE 20C1 d2.6 97.2 99.1 9t.4 99.6 99.7 99.7 99. 99.9 09.9 9-.9 99.9 99.9 100.0 130.0 100.0

GE c 1 87.6 97.2 99.1 9r4. 99.6 99.7 99.7 99.9 94.9 99.9 99.9 99.9 99.9 100.0 120.0 300.G

GE C 47.6 97.2 99.1 99.4 99.6 99.7 99.7 99.9 99.9 99.9 99.9 49.9 99.9 100.0 10. 100.0

TOTAL NUMPLR OF OBSERVATIONS: 7o6

UL0bAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUJRRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR dEATHER SERVICE/MAC

STATION NE1M9LR: 724916 STATION KAME: F7 0R0,rRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAY NOIJ9SILST): 15CO-17(10

IN IGE GE GE CE 61E GE GE bE GE GE GE GE GE GE GE 6EFELT 10 6 5 .. 3 2 1/2 2 1 112 1 1/4 1 3/9 5/8 1/2 5/16 1/4 1

NO LElL I 6J.2 66.6 bb.C 66.0 66.0 66.0 66.0 66.0 66.0 66.0) 66.0 66.0 66.0 66.0 .6.0 6t.0O

: 2~O0CI 61.7 69.6 69.8 6';.9 69.6 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8A, 180(101 b,3.0 69.6 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 b9.9 69.9ZE 160CM 63.8 69.8 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9bF lroICI 64.4 70.1 7c.5 7C.S 70.8 70.5 70.5 70.5 7a.5 70.5 70.5 ?0.5 70.5 70.5 77.5 70.5[,F 1z'10I 64.8 70.8 70.9 7C7.9 70.9 70.9 70.9 70.9 70.9 70.9 7n.9 70.9 70.9 70.9 10.9 70.9

1C'n0 1 65.9 71 .A 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9uF 90001 66.3 72.2 72.4 72.4 12.4 12.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.9 72.4'r 80C01 67.4 73.4 73.5 7!.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.5 73.6 73.5 73.5UF7 7r(1l 68.0 74.0 79. 1 74.1 74.1 74.1 74.1 74.1 79.1 74.1 79.1 74.1 74.1 74.1 14.1 74.1

E 60(101 68.2 74.1 74.3 74.S 74.3 74.3 74.3 74.3 74.3 74.3 79.3 74.3 74.3 74.3 74.3 74.1

A:5r001 68.9 76.1 75.4 75.9 75.4 75.4 75.40 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4ZCl 4'001 69.9 75.1 75.4# 75.4 75.4 75.4 75.4 75.9 15.4 75.4 75.4 75.4 75.4 75.4 75.91 75.4,, 4'C01 69.0 75.4 75.7 75.7 75.7 75.1 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.76E 35OC1 70.S 77.2 77.5 7. 77.5 7 7.5 77.5 7 7. 77.5 77.5 77.5 77.5 77.5 7 7.5 77.5 77.5

F '~r30c 72.7 79.7 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9

A:00SOI 73.1 80.1 82.4 8L.4 80.4 80.4 80.4 80.4 80.4 80.4 80.4 80.4 80.4 80.4 80.9 B...4L2(1001 73.7 80.8 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1

IA 1830 73.7 81.0 81.3 81.3 81.3 81.3 81.3 81.1 81.3 81.3 81.3 81.3 81.3 81.3 81.3 81.1A: 1ccI 74.7 82.3 82.6 82.6 82.6 82.6 82.6 82.6 82.6 82.6 82.6 82.6 82.6 82.6 82.6 Bi..6

LF 120CI 75.9 89.1 84.7 84.7 84.7 84.7 84.7 84.9 88.9 84.9 84.9 84.9 84.9 84.9 b4.9 84.9

,1 E10001 76.7 87.5 88.1 88.1 88.4 88.4 88.4 88.6 88.5 88.5 89.5 88.5 88.8 88.56 8.5 88.5If 9001 77.3 99.0 89.5 9s.8 90.1 90.1 90.1 90.3 9J.3 90.3 971.3 90.3 90.3 90.3 90.1 9(1.3LA A8.3: 77.6 90.1 91.0 91.3 91.6 91.6 91.6 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7

701 18.6 92.4 93.3 93.6 94.0 94.0 99.0 94.2 94.2 94.2 94.2 94.2 99.2 94.2 94.2 94.2A: 6001 79.6 94.3 95.2 95.5 96.1 96.2 96.2 96.4 96.4 96.4 96.9 96.9 96.4 96.4 96.4 98.4

f7 3r( 19.8 99.9 96.1 98.9 97.8 98.0 98.0 98.1 98.1 98.1 991.1 98.1 98.1 98.1 98.1 96.1" 4c01 79.9 96.6 96.7 97.5 99.0 99.1 99.3 99.4 99.4 99.6 99.6 99.6 99.6 99.6 99.6 99.6

,,f 30 r'1 79.9 96.5 96.7 97.6 99.0 99.1 99.3 99.4 99.4 99.7 99.T 99.7 99.7 99.9 99.9 99.8LA: 20CI 79.9 95.5 96.7 97.5 99.0 99.1 99.3 99.4 99.4 99.7 99.9 99.9 99.9 100.0 1,0D.0 100.0.F 1011 79.9 95.5 96.7 97.5 99.0 99.1 99.3 99. 99.4 99.7 99.9 99.9 99.9 100.1 1j.. 101.0

..t TI 79.9 9S.5 96.7 97.6 99.c 99.1 99.3 99.4 99.9 99.7 99.9 99.9 99.9 100.0 1(10.0 100.0

TOTAL NIIMPLV OF OBSERVATIONS: 688

GLOBAL CLIHATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMRER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: MAY HOURS(LSTI: 18;0-2000

...... ;......................................................VI ..L ;..............................................................I T T T I E

CEILING VISIBILITY IN STATUTE MILES14 I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET i .o 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 U

NO CEIL I 56.9 65.6 b5.9 61.9 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66.1 66.1 06.1 66.1

uE 20000) 59.4 68.7 69.1 64.1 69.3 69.3 b9.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 L9.3 69.3GE SBOOC) 59.6 68.9 69.3 6c.3 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.46E 1bC0 59.6 68.9 69.3 64.3 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4

bE 14C301 60.0 69.3 69.6 61. 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.6

GE 120r1 b0.4 69.6 70.0 7C.0 70.2 70.2 70.2 70.2 70.2 70.2 70.2 70.2 70.2 70.2 70.2 7L .2

('E 1000) b0.6 69.6 70.2 7C.Z 70.4 70.4 70.4 70.4 70.4 70.4 70.4 70.4 70.4 70.4 70.4 76.4wE 90001 60.9 70.z 70.6 7L.6 70.7 70.7 70.7 70.7 7U.7 70.7 7.7 70.7 30.7 70.7 70.7 70.7GE 8CO, 61.7 70.9 71.3 71.3 71.5 71.5 71.5 71.5 71.5 71.5 71.S 71.5 71.5 71.5 71.5 71.5

GE 700CI 62.8 72.0 72.4 72.4 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 7Z.6 72.6 72.6 72.6.E 6001 62.8 72.2 72.6 72.b 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8

GE 50001 b3.3 73.0 73.3 73.3 73.5 73.5 73.5 73.5 73.5 73.5 79.S 73.S 73.5 73.5 73.5 73.5

GE 4500J 63.5 73.1 73.5 73.5 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 71.7 73.7

GE 4,00 64.1 73.9 74.3 74.3 74.4 74.4 74.4 74.4 74.4 74.4 74.4 74.4 74.4 74.4 74.4 74.4

GE 35001 b.3 74.1 74.4 74.4 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.6 74.66E 300r) 65.7 75.6 75.9 75.9 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1

GE 2E001 67.2 77.2 77.6 77.6 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8

.E 2310) 67.6 77.6 78.0 78.0 78.1 78.1 78.1 78.1 78.1 78.1 78.1 78.1 78.1 78.1 78.1 76.1

.E 1800) 67.8 78.0 78.3 78.3 78.5 78.5 78.5 76.5 78.5 78.5 79.5 78.S 78.5 78.5 7A.5 78.5GE 1500) 69.3 78.7 79.1 74.3 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4 79.4

GE 17001 70.0 80.4 80.7 8E.9 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1

GE oo01 70.2 81.5 81.9 82.0 82.4 82.4 82.4 82.4 82.4 82.4 82.4 82.4 82.4 82.4 62.4 82.4GE 900) 7-.7 83.3 83.7 84.1 84.4 84.4 84.4 84.4 84.4 R4.4 84.4 844 84.4 P4.4 d4.4 84.4

GE 90 1 72.4 86.7 87.4 87.8 88.3 98.3 88.3 88.3 88.3 98.3 89.3 88.3 88.3 88.3 48.3 8b.3CE 700) 72.6 88.1 89.4 9C.2 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 ?1.1 91.1bE 6001 73.3 89.8 91.5 92.2 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3 93.3

G 600) 74.1 91.1 92.8 94.4 96.5 96.5 96.5 96.5 96.5 96.7 96.7 96.7 96.7 9b.7 96.7 96.7bE 410) 74.1 91.1 93.3 95.2 97.6 97.6 97.8 97.8 97.8 98.0 99.1 98.1 98.1 08.1 Y8.1 98.1GE 3001 74.1 91.3 93.5 95.7 98.3 98.3 98.5 98.5 98.5 98.7 9A.9 98.9 98.9 98.9 99.9 98.9

GE 200) 74.1 91.5 93.7 96.1 98.7 98.7 99.1 99.3 99.4 99.6 99.8 99.8 99.8 100.0 1 0.0 100.0

E 100) 74.1 91.5 93.7 96.1 98.7 98.7 99.1 99.3 99.4 99.6 99.8 99.8 99.8 100.0 110.0 i00.u

GE 0) 74.1 91.5 93.7 96.1 98.7 98.7 99.1 99.3 99.4 99.6 99.8 99.8 99.8 10.0 100.0 io.o

TOTAL NURER OF OBSERVATIONS: 640

-I.

GLUBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 724916 STAION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: MAY HOURS(LSTI: ZIC-23GO

V*I*S,1 19 VISBIIT Y Y**IN ST "ATUTE MI LE S*..* **** * ..-- - -IN I GL GE GE GE GE 6E GE GE GE GE SE GE GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 112 1 114 1 3J4 5/8 1/2 5/16 1/4 0

N' CEIL I 55.C 69.1 69.8 6S.8 70.1 T.1 70.1 70.1 70.1 70.1 70.1 70.1 T.1 70.1 70.1 70.1

-E 2C0 00 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7u 18'JTI 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7iE 1b6(l 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 12.7 72.7LE 14(C0( 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72,7 72.7 72.7 72.7 72.7 72.7 72.7 72.7

lC 12rocl 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7

10'c0I 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7LI 9rUCI 56.9 71.8 72.5 72.5 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7bE 8P.001 57.4 72.3 73.0 71.0 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2UE 7(001 57.9 72.7 73.5 7!.5 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7c ' 6uaI 59.z 73.2 74.0 74.U 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2

:IF 50001 59.4 74.5 75.2 75.2 75.4 75.. 75.4 7S.4 75.4 75.4 75.4 75.4 T5.4 7s.4 75.4 75.4CE 45JP1 59.9 74.9 75.7 75.7 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9

LI 40001 60.3 75.4 76.2 76.2 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 7b.4 76.4 76.4UE 3!C01 6r,.3 75.4 76.2 7b.2 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 7b.4

I 30UC1 60.6 75.9 76.6 76.6 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9

,r "f1l 60.e 76.2 76.9 76.9 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.16' 20U0I 61.6 77.9 78.6 78.6 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8LIE 180(l 61.6 77.9 78.6 78.b 78.8 78.8 78.8 78.8 78.8 78.8 79.8 78.8 78.8 78.8 78.8 76.8UE 190I o2.C 79.1 79.8 7S.8 80.0 60.0 80.0 80.0 80.0 90.C 80.0 80.0 80.0 80.0 60.0 80.0.r 120CI b3.3 80.3 81.0 81.3 81.5 81.8 82.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8

LE 12" 63.7 82.0 83.0 82.2 83.5 83.9 83.9 83.9 83. 9 83.9 83.9 83.9 83.9 83.9 83.9 83.9.F 900 64.0 82.5 83.5 87.7 83.9 84.4 84.4 84.4 4 84 84 4 84 84 844 84.4 84.4 84.4

bE B0el 65.0 84.9 86.4 6.9 87.1 87.6 87.6 87.b 87.6 87.6 87.6 87.6 87.6 87.6 87.6 67.6L 7001 65.7 86.4 87.8 88.6 88.8 89.3 89.3 89.3 89.3 89.3 89.3 89.3 89.3 99.3 89.3 89.3IE 60C1 65.5 88.1 89.5 9C.3 90.5 91.C 91.0 91.0 91.0 91.0 92.0 93.0 91.0 91.0 91.0 91.0

.E -001 65.5 88.3 90.5 91.7 92.2 92.7 92.7 92.7 92.7 92.7 92.7 92.7 92.7 92.7 92.7 92.7.F 4C01 65.5 89.5 91.7 92.2 94.2 94.6 94.6 94.6 94.6 .4.6 94.6 94.6 94.9 94.9 94.9 94.9E 3jC b5.5 89.8 92.C 93.4 95.9 96.4 96.4 96.6 96.6 96.6 96.6 96.6 96.8 96.8 96.8 9t.8

GE 0C01 65.5 89.8 92.L 93.4 95.9 96.4 97.1 98.3 98.3 99.1 99.0 99.0 99.3 99.3 99.3 99.5LF 100, 65.5 89.8 92.0 93.4 95.9 96.4 97.1 98.3 98.3 99.0 99.0 99.0 99.3 99.3 99.3 10C.U

UE CI 65.5 89.8 92.0 93.4 95.9 96.4 97.2 98.3 98.3 99.0 99.0 99.0 99.3 99.3 99.3 100.0

TOIAL NUMPER OF OBSERVATIONS: 411

U

vL.bAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITY,SAFETAC FROM HOURLY OBSERVATIONS

A1,1 WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO(FRITZSCHC AAF CA PERIOD OF RECORD: 77-86MONTH: MAY HOURSILSTT: ALL

• • • • • • ... ... .. ,. . . . . . . ........ ......,0 . • • ,.,..o. o. .o• ... .... .... ...,-..,... . . . . . . . . . . . .

CE.ILING VISIBILITY IN STATUTE MILESIN I GE GE GE GF GE GE GE GE GE GE GE GE GE GE GE GE

rELT I t, 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 0/Ib 3/4 )

.. ... . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... . , , . • . * ..... . . ..... . . .I°... .°.. .

N1 CEIL 1 '3.3 59.1 59.8 61.0 60.1 60.2 60.2 60.2 60.2 60.2 61.2 60.2 60.3 60.3 (0.3 60.3

LF 200001 53.4 6Z.B 63.4 63.7 63.8 63.9 63.9 63.9 63.9 64.0 64.0 64.0 64.0 64.0 64.1 64.1

- 183c01 53.6 62.9 63.6 63.8 64.0 64.1 64.1 64.1 64.1 64.1 b4.1 64.1 64.2 64.2 64.2 64.2,L Itco0i 53.6 62.9 63.6 62.8 64.C 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.2 64.Z o4.2 64.3A 14(00P 53.9 63.3 64.C 64.2 64.4 64.6 64.5 64.5 64.5 64.5 64-5 64.5 64.6 64.6 o4.6 64.7

E 120001 54.5 63.9 64.6 64.8 65.0 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.2 65.2 65.3 65.3

1C 1CPOOI 55.3 64.8 65.5 65.7 65.9 66.0 66.0 66.0 66.0 66.0 66.0 66.0 66.1 66.1 b6.2 66.2,F 9nac'I E5.5 65.0 65.8 66.U 66.2 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.4 66.4 .6.4 66.5

800V1 56.3 65.9 66.6 66.8 67.0 67.1 67.1 67.1 67.1 67.1 67.1 67.1 67.2 67.2 67.2 67.3

r 1T001 56.7 66.3 67.0 67.2 67.4 67.5 67.5 67.5 67.5 67.6 67.6 67.6 67.7 67.7 67.7 67.7C 6OCI1 56.9 66.5 67.2 67.4 67.6 67.7 67.7 67.7 67.7 67.7 67.7 67.7 67.8 67.8 67-9 67.9

5A 90001 57.5 67.2 67.9 68.Z 68.3 68.4 68.4 68.4 68.4 68.5 68.5 68.5 68.6 68.6 b8.6 66.6CA 453CJ 57.6 67.4 68.1 68.4 68.5 68.6 68.6 68.6 68.6 68.7 68.7 68.7 68.8 68.8 bB.8 66.8A AcOl 54.1 67.9 68.7 68.9 69.1 69.2 69.2 69.2 69.2 69.2 6o.2 69.2 69.3 69.3 c9.4 69.4A 35001 59.8 69.8 70.5 7E.7 70.9 71.0 71.0 71.0 71.0 71.1 71.1 71.1 71.2 71.2 71.2 71.2A 3n001 6).1 72.4 73.2 73.4 73.6 73.6 73.7 73.7 73.7 73.7 73.7 73.7 73.8 73.8 73.8 73.9

,,F 25091 64.1 74.5 75.3 75.5 75.7 75.8 75.8 75.8 75.8 75.8 75.8 75.8 75.9 75.9 75.9 7b.,C 2OCCII b5.6 76.b 77.5 77.7 77.9 78.0 78.0 78.0 76.0 78.0 78.0 78.0 78.1 78.1 18.1 76.2

I- IeOC 65.9 77.0 77.9 78.2 78.4 78.4 78.5 78.5 78.5 78.6 78.5 78.5 78.6 78.6 78.6 76.7,F 15001 66.8 78.5 79.5 75.8 80.0 81.1 80.1 80.1 80.1 80.2 An.2 80.2 80.3 80.3 oO.3 8U.3E 120CI 68.2 80.8 81.9 82.2 82.4 82.5 82.6 82.6 82.6 82.7 82.7 82.7 82.8 82.8 82.8 ei.9

Ar 11ol 68.8 82.9 84.3 84.7 85.0 85.1 85.2 85.Z 85.3 85.3 85.3 85.3 85.4 85.4 95.4 95.5, 9u0I 69.0 84.3 65.9 86.4 86.7 86.8 86.9 8b.9 87.0 R7.0 87.0 87.0 87.1 97.1 87.1 87.2I" pool 69.5 85.8 87.6 88.3 88.6 88.6 88.9 88.9 89.3 89.0 89.0 89.0 89.1 49.1 89.2 85.2F 7001 69.9 87.1 89.1 9C.I 90.6 90.8 91.0 91.0 91.0 91.1 91.1 91.1 91.2 91.2 91.2 91.3

r 6.01 70.2 88.3 90.7 91.8 92.5 92.7 92.9 93.0 93.1 93.1 93.1 93.1 93.2 93.2 93.3 93.3

S ON( 70.4 88.9 91.7 93.4 94.5 94.8 95.1 95.2 95.2 95.4 95.4 95.4 95.5 95.5 95.6 95.6A '4001 71.4 89.1 92.2 94.0 95.5 9S.9 96.3 96.7 96.8 97.0 97.1 97.1 97.3 97.3 97.4 97.5LE 30CI 70.4 89.2 92.3 94.3 96.0 96.4 97.0 97.4 97.5 97.8 98.0 98.0 98.4 98.5 98.6 98.7E 7001 70.4 89.2 92.3 94.. 96.1 96.5 97.2 97.7 97.9 98.3 98.5 98.6 99.1 99.3 ;9.5 99.7E. 1101 70.4 89.Z 92.3 94.3 96.1 96.5 97.2 97.8 98.0 98.3 98.6 98.6 99.1 99.5 99.7 100.0

6[ rl 7.4 89.2 92.3 94.3 96.1 96.5 97.2 97.8 98.0 98.3 9A.6 98.6 99.1 99.5 99.7 10.u

TOTAL NUMPER OF OBSERVATIONS: !945

I(EAL CLIIATOLOUY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY'.41ETAC FROM HOURLY OBSERVATIONSI1 .EATHER SERVICE/MAC

TITION NUMBER: 724916 STATION hAME: F7 ORD/FRITZSCHE AAF CA PERIOD OF RECORO: 77-86MONTH: JUN HOURS(LSTI: 06j0-080

FILING VISIBILITY IN STATUTE MILESIN I G GE GE GE GE GE GE GE GE GE GE GE GE GE GE bE

FLT 1 10 6 E 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 C

CEIL 121.4 29.1 30.4 31.U 31.7 31.7 31.8 31.8 31.8 31.8 31.8 31.8 31.9 32.1 32.1 32.1

2C31 2?.0 30.2 31.1 32.2 32.9 32.9 33.0 33.0 33.0 33.0 33.0 33.0 33.2 33.3 33.3 33.3S182' 22.1 30.2 31.7 32.2 32.9 32.9 33.0 33.0 33.0 33.0 33.0 33.0 33.2 33.3 33.3 33.3

lbOO01 22.3 30.2 31.3 32.' 32.9 32.9 33.0 33.0 33.0 33.0 33.0 33.0 33.2 33.3 33.3 33.31 40001 22.1 30.3 31.8 32.3 33.0 34.0 33.2 33.2 33.2 33.2 33.2 33.2 33.3 33.4 33.4 33.4

I -rol 22.1 30.3 31.8 32.3 33.0 33.0 33.2 33.2 33.2 33.2 33.2 33.2 33.3 33.4 33.4 33.4

:'2001 2.2 30.6 32.1 32.b 33.3 33.3 33.4 33.4 33.4 33.4 33.4 33.4 33.6 33.7 33.7 33.79'-0 0 22.5 30. 32.3 32.9 33.6 33.6 33.7 33.7 33.7 33.7 33.7 33.7 33.8 34.0 34.0 34.U8 AtOC 22.5 30.8 32.3 32.9 33.6 33.6 33.7 33.7 33.7 33.7 33.7 33.7 33.8 34.0 34.0 34.u7ro C 1 12.5 30.8 32.3 32.9 33.6 33.6 33.7 33.7 33.7 33.7 33.7 33.7 33.8 34.0 34.0 34.0t; O1 22.5 30.8 32.3 32.9 33.6 33.6 33.7 33.7 33.7 33.7 33.7 33.7 33.8 34.0 34.0 34.U

5SOrl 22.5 30.8 32.3 32.9 33.6 33.b 33.7 33.3 33.7 33.7 33.7 33.7 33.8 34.0 34.0 34.U4' Z.OZ 2.5 3U.8 32.3 32.9 33.6 33.6 33.7 33.7 33.7 33.7 31.7 33.7 33.8 34.0 34.0 34.047 '0CI 22.5 3c.d 32.3 32.9 33.6 33.6 33.7 33.7 33.7 33.7 33.7 33.7 33.8 34.0 34.0 34.U

, 35001 23.3 32.1 33.6 34.1 34.8 34.8 34.9 34.9 34.9 34.9 34.9 34.9 35.1 35.2 35.2 35.2sr:uI I 24.3 13.0 34.5 31.1 35.7 35.7 35.9 35.9 35.9 35.9 35.9 35.9 36.0 36.2 36.2 36.2

2'2tI 26.7 35.9 37.4 3e.1 38.7 38.7 39.0 39.0 39.0 39.0 39.0

39.0 39.2 !9.3 39.3 39.3.-E 20,I1l 29.2 38.7 43.2 41.1 41.7 42.7 42.0 42.2 42.2 42.2 47.2 42.2 412.3 42.4 42.4 42 .4FI 130C 29.9 39.4 40.9 41.7 42.4 42.4 42.7 43.0 43.0 43.0 43.0 43.0 43.1 43.2 43.2 43.2

1F 1O01 32.2 42.8 45.3 46.4 47.1 47.1 47.3 47.6 47.6 47.6 47.6 47.6 47.7 47.9 47.9 47.9.2 12:01 34.5 47.1 49.7 51.2 5Z.1 52.1 52.4 52.8 52.8 52.8 52.8 52.8 52.9 53.1 S3.1 53.1

2 lCni 35.6 51.7 55.C 56.5 57.4 57.4 57.8 58.3 58.3 58.3 58.3 58.3 58.4 58.5 58.5 56.5F Q01 35.9 54.3 58.3 59.9 60.8 b0.A 61.4 61.8 61.8 61.8 61.9 61.9 62.1 62.2 U7.2 62.2I q001 36.6 56.6 61.4 63.4 64.9 64.9 65.5 66.3 66.0 66.0 66.2 66.2 66.3 66.4 66.4 66.4F 7Too 36.p 58.5 64.U 63.3 69.2 69.2 69.8 7U.5 70.5 70.5 73.7 70.7 70.8 70.9 70.9 7u.9

IC 6UC 36.8 59.3 65.9 7E.7 74.5 74.5 75.2 75.9 76.0 76.0 76.1 76.1 76.3 76.4 76.4 76.4

E 5001 36.8 60.0 67.7 73.0 79.4 79.4 81.4 82.4 82.5 82.5 82.7 82.7 82.9 83.1 83.2 83.440C1 36.8 60.6 68.6 74.4 82.9 83.6 86.6 88.4 89.1 89.2 89.5 89.5 39.9 90.0 90.2 9L.6

3, 3U1 36.8 60.7 68.8 74.6 83.4 84.3 87.9 90.3 91.4 92.2 92.9 92.9 94.1 94.4 94.8 95.2'c 2001 36.8 bO.7 68.8 74.6 83.5 84.4 88.0 90.5 91.5 92.4 93.2 93.2 95.0 95.9 96.5 9.5Al IGC1 36.8 60.7 68.8 74.6 83.5 84.4 88.0 90.5 91.7 92.5 93.5 93.5 95.6 96.7 97.7 99.9

" F c 36.8 60.7 68.8 74.6 83.5 84.4 88.0 90.5 91.7 92.5 93.5 93.5 95.6 96.7 97.7 1CO.0

TOTAL NUM'DER OF OPSERVATIONS: 733

S • • • • • • | •. . .... ...............

ULJEAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSA0ETAC FROM HOURLY OBSERVATIONS

AI .FATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT OROIFRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: JUN HOURS(LSTI: 0960-1130...................................................... ;I..;..;;'.........'... .............................................CEILIG VIS18ILITY IN STATUTE MILES

I. I SE GE GE CF GE GE GE GE 5E GE C E GE GE GE GE GEFEET I 1C 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

Nn ClCL 1 41.5 52.1 53.1 52.2 53.2 53.2 53.2 53.2 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3

,j 2';00Cl 42.7 53.3 54.4 54.5 54.5 54.5 54.5 54.5 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54 ..lF Ia'DOl 42.7 53.3 54.4 54.5 54.5 54.5 54.5 54.5 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6

, E 1bTOT0 42.8 S3.5 54.5 54.6 54.6 54.6 54.6 54.6 54.7 54.7 59.7 54.7 54.7 54.7 54.7 54.7.E 14000) 43.6 54.2 55.3 5S.4 55.4 55.4 55.4 55.4 55.5 55.5 55.5 55.5 55.5 55.5 55.5 55.5

3F 1200C) 43.7 54.4 55.4 55.5 55.5 55.5 55.5 55.5 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6

GF l.' 5C0I 44.r 54.6 55.6 55.8 55.8 55.8 55.8 55.8 F1.9 55.9 55.9 55.9 55.9 55.9 55.9 55.96F 95OCI 44.0 54.7 55.8 55.9 55.9 55.9 55.9 55.9 56.0 56.0 56.0 56.0 56.0 5b.0 56.C 5b.-

'A 8001 '44.1 S5.0 56.0 56.2 56.2 56.2 56.2 56.2 56.3 56.3 56.3 56.3 56.3 56.3 56.3 5b.3, 70001 44.2 55.1 56.2 56.3 56.3 56.3 56.3 56.3 56.4 56.4 56.4 56.4 56.4 56.4 56.4 5b.4,E 60001 44.2 55.1 56.2 5.3 56.3 56.3 56.3 56.3 56.4 56.4 56.4 56.4 56.4 Sb.4 56.4 5b.4

.E 5COCI 44.4 55.3 56.3 56.4 56.4 56.4 56.4 56.4 56.5 56.5 56.5 56.5 56.5 56.5 56.5 5b.5

.E 45JOI 44.5 55.4 56.4 56.5 56.5 56.5 56.5 56.5 56.7 56.7 56.7 56.7 56.7 56.7 56.7 5b.7, 40001 45.0 56.0 57.1 57.2 57.2 57.2 57.2 57.2 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3uE 3DCa 46.0 57.1 58.1 58.2 58.2 58.2 58.2 Sa.2 58.3 58.3 58.3 58.3 58.3 56.3 58.3 58.3CE 3r'iJ 47.4 58.7 59.7 59.9 59.9 59.9 59.9 59.9 60.0 60.0 60.0 60.0 60.0 60.0 60.0 6U.0

CE 25U1 49.2 59.5 60.6 6C .8 60.8 60.8 60.8 60.8 60.9 60.9 60.9 60.9 60.9 60.9 60.9 6r.9'F ZrOth 51.2 63.1 64.2 64.4 64.4 64.4 64.4 64.4 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5Al 19311 51.8 63.8 65.0 65.1 65.1 65.1 65.1 65.1 65.3 65.3 65.3 65.3 65.3 65.3 uS.3 65.3L 1l'C) 54.2 68.7 70.1 7E.4 70.4 70.4 70.4 70.4 70.5 70.5 70.5 70.5 70.5 70.5 70.5 70.5

UF 175(1 55.5 74.1 75.8 76.0 76.2 76.2 76.2 76.2 76.3 76.3 76.3 76.3 76.3 76.3 76.3 7b.3

rl loo0 5R.8 79.0 81.9 82.4 82.6 82.6 82.6 82.6 82.7 82.7 82.7 82.7 82.7 82.7 82.7 82.7E 90h 59.4 91.4 84.7 85.4 85.6 85.6 85.6 85.8 85.9 95.9 85.9 85.9 85.9 85.9 85.9 85.9

AE 8001 60.3 83.7 87.9 85.1 89.5 89.5 89.6 89.7 89.9 89.9 89.9 89.9 89.9 89.9 89.9 89.9Al 7001 bO.4 85.3 90.3 91.9 92.7 92.7 92.8 92.9 93.1 93.1 93.1 93.1 93.1 q3.1 93.1 93.16E 60Ch 60.5 87.1 92.7 94.9 96.3 96.3 96.4 96.5 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7

.E 5Qn 6C.6 87.4 93.2 95.8 97.8 97.8 98.1 98.3 98.5 98.5 98.5 98.5 98.5 98.5 98.5 96.5f 4001 60.8 87.7 93.5 96.2 98.5 98.6 99.3 99.2 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5

1E '001 b0.8 87.7 93.5 96.2 98.6 98.7 99.2 99.6 99.9 100.0 100.0 100.0 100.0 10OO 100.0 1-..aAE 2ccl 60.8 87.? 93.5 98.2 94.6 96.7 99.2 99.6 99.9 100.0 100.0 1O0.0 100.0 100.0 1O.O 10j.0S.E lorI 60.8 87.7 93.5 96 .. 98.6 18.7 99.2 99.6 99.9 100.0 100.0 100.0 100.0 100.0 IO.O 10C.U

f 'I 6(7.P 87.7 93.5 96.2 98.6 98.7 99.2 99.6 99.9 100.0 100.0 100.0 100.0 100.0 I .0 100.0

TOTAL NUM ER OF OBSERVATIONS: 780

,L1)AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYjSAfLTAC FROM HOURLY OBSERVATIONSA; .EATHFk SERVICE/MAC

I13110 N(lMqER: 724916 STATION AARE: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JUN HOURSILST): 120n-1490

CLfL I1tG VISIBILITY IN STATUTE MILES

I GE GE GE GE GE GE GE 61rFF T 1 10 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

., CEIL I 6.7 71.7 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2

C12ICI 67.2 74.5 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.1 75.5.1 .1 75.1 75.1180L21 61.6 74.9 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 7S.5 75.5 75.5 75.5 75.5 7!.51 ,IbOCI 61.6 74.9 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5 75.5

E' 14('C o'. 1 75.4 76.C 76.0 76.0 76.0 76.0 76.0 76.0 76.0 76.0 76.0 76.0 76.0 76.0 7.U

- 1 213PI 6e.7 76.1 76.7 7t.7 76.7 76.7 76.7 76.7 76.7 76.7 76.7 76.7 76.7 7b.7 76.7 76.7

1C001 bR.8 76.2 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 76.8 7b.8>7 900c) oY.) 76.3 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9 7L.9>E 6Po1 L9.2 76.7 77.4 71.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4

S7PU0 C o'4.2 76.7 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4,E 6,O r 69.2 76.7 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4 77.4

5 57u' bg.9 76.8 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6 77.6tC 4SO0 bo.4 76.9 77.8 71.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8

4CO1 70.1 77.8 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 76.7E, 3527 1 70.5 78.2 79.1 75.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1

3$ 3(0C 71.3 79.2 80.1 81.1 80.1 80.1 80.1 80.1 80.1 80.1 8'T.1 8c.1 80.1 80.1 80.1 80.1

E 25001 71.9 90.3 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2

,2 20C1 73.3 82.2 83.1 83.1 83.1 83.1 83.1 83.1 83.1 83,1 87.1 83.1 83.- 83.1 83.1 83.1

-F 1900 74.0 82.8 83.7 81.7 83.7 83.7 83.7 83.7 63.7 83.7 87.7 83.7 83.7 83.7 87.7 83.7

GF 15C) 76.0 84.9 86.0 86.0 86. 80.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0 86.0

,L 172CI 79.0 89.9 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4

I 00C1 l.O 93.1 95.c 95.U 95.1 95.1 95.1 95.1 95.1 95.1 95.1 95.1 95.1 95.1 95.1 95.1f 9o1 81.5 94.0 96.0 9t.0 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2 9b.2

eJ 6C| 82.2 94.9 97.1 97.1 97.2 97.2 97.2 97.2 97.2 97.2 97.2 97.2 97.2 97.2 97.2 97.27 72") 89.8 96.4 98.7 98.7 98.8 96.8 98.8 98.8 98.8 98.8 9R.8 98.8 98.8 98.8 99.8 98.8>7 62,0 82.8 96.7 99.4 9S.4 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5 99.5

.E U0) 32.8 96.8 99.6 99.6 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.790G1 j2.8 96.8 99.7 9S.7 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9

, 31C1 627. 96.8 99.7 95.7 99.9 99.9 99.9 100.0 100.0 100.0 10.0 100.0 100.0 100.0 1;0.0 I06.0J 221' 31.8 9ob.8 99.7 96.7 99.9 99.9 99.9 100.0 100.0 100.0 10.0 100.0 100.0 10J.0 160.0 10O.U

1,CI 92.9 96.8 99.7 9S.7 99.9 99.9 99.9 10.0 100.0 100.0 100.0 100.0 100.0 170.0 110.0 1C.0

c 1 Z2.8 96.8 99.7 90.7 99.9 99.9 99.9 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 lOU.3

TOTAL NUME1R7 OF OBSERVATIONS: 780

.L3 AL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYI AFETAC FROM HOURLY 06SERVATIONS

0T .FATHER SERVICE/MAC

SI1ION NUM4ER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JUN HOURSiLST): 15Z0-1730

: I ......................................................;i' "i' ';'..... T ....................................... A U E M L S...............".....-[L .ING VISIBILITY IN STATUTE MILES

: . GE IC GE cE GE GE GE 6E GE GE rE GE GE GE GE (EFLET I 10 6 5 . 3 2 1/2 2 1 112 1 1/4 1 3/4 5/6 112 5/16 1/4 U

I. CEIL 1 53.8 63.9 64.1 64.1 64.1 6.1 69.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 ,4.1 64.1

A 2-"oCI 52.5 68.2 68.3 68.3 68.3 68.3 68.3 68.3 68.3 68.3 69.3 68.3 68.3 68.3 s8.3 66.3C18 01 63.2 68.9 69.1 66.1 69.1 69.1 69.1 69.1 o9.1 69.1 69.1 69.1 69.1 69.1 69.1 64.1

A 1610coo b3.4 69.1 69.2 65.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.2 69.24 1001 63.8 69.5 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.b L9.6 69..

Al 12001O b4.1 69.6 69.9 69.9 69.9 69.9 69.9 69.9 .9.9 69 .9

1001 04.1 69.8 69.9 69.9 69.9 69.9 69.9 69.9 b9.9 69.9 69.9 69.9 69.9 69.9 69.9 69.99,'00| 64.1 69.8 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 09.9 69.9

,f 6rjl t,4.2 70. 1 70.2 7C.2 70.2 70.2 70.2 70.2 70.2 70.2 7l.2 70.2 70.2 70.2 70.2 71.2

Al 7rI b4.4 7G.2 70.4 7C .4 70.4 70.4 70.4 70.4 70.9 70.4 71.4 70.4 70.4 70.4 70.4 7L.4ZF 6COC 69.4 70.2 70.4 7C.4 70.4 70.4 70.4 70.4 70.4 70.4 70.4 7C.4 70.4 72.4 70.4 76.4

1,C00J 64.4 70.2 70.4 7C.9 70.4 70.4 70.4 70.4 7.1.4 70.4 71. 4 70.4 70.9 70.9 70.4 7 .4A OrI b4.4 70.2 70.4 7-.4 70.4 7C.4 70.4 70.4 70.4 70.4 7q.4 70.4 70.4 70.4 70.4 7L.4

F 400ti .5.1 71.4 71.5 71.5 71.6 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5-E 35UCI 65.1 71.4 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7A 30wU 1 65.8 72.3 72.b 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 7i.4

I 2SUrl 66.3 72.7 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.1 73.11E zoor0 b5.6 73.0 73.4 73.4 73.4 73.4 73.4 73.4 73.4 73.4 7T.4 73.4 73.4 73.4 73.4 73.4

1 180n1 66.7 73.1 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.bFA 151"1 68.2 74.9 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.3 7S.3 71.3

Al 120r1 72.0 80.1 80.7 8C.9 80.9 80.9 80.9 8.9 81.9 80.9 80.9 80.9 80.9 40.9 d.9 13L.9

1)001 74.9 84.8 85.7 85.8 85.8 85.8 85.8 85.8 85.8 85.8 85.8 8.8 85.8 85.8 8.8 8.6.C 90CI 76.5 87.2 88.0 88.5 88.5 86.5 88.5 88.5 88.5 86.5 69.5 88.5 88.5 P.5 c8.S 66.5"I O011 78.1 89.8 90.7 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1A 70C 79.0 92.0 93.1 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6 93.6 S3.oAE 611

r1 79.7 93.4 94.9 9s.b 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.8 95.0

"I AuI 80.0 94.3 96.2 97.2 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5'c 401 87,.l ?4.7 96.8 98.1 99.1 99.1 99.3 99.3 99.3 99.3 99.3 99.3 99.3 Q9.3 99.3 99.3b, 33CI 81.3 95.3 97.4 9F.7 99.7 99.7 99.9 100.0 101.0 100.0 100.0 100.0 100.0 100.0 ILO O 101.0AE 2011 83.3 95.3 97.4 98.7 99.7 99.7 99.9 100.0 100.0 10.0 100.0 100.0 100.0 InO.0 140.0 I00.0ul I0 1 83.3 95.3 97.4 98.7 99.7 99.7 99.9 100.0 lO.0 100.0 100.0 100.0 100.0 I00.0 I X .O IOU.0

, Cl dl.3 95.3 97.4 96.7 99.7 99.7 99.9 100.0 103.0 100.0 100.0 100.0 100.0 Io.0 10.0 I00.2

TOtAL NUMP[R OF OBSERVATIONS: 6s65

_ !1

lAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY,FETAC FROM HOUPLY OBSERVATIONS

..ATHFR SERVICE/MAC

IICN NUM3LR: 724916 STATION KAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: JUN HOURS(LST): 18Z0-25CL...,.;.........................................................'.. '.. ;;... '..... .............................................:LING VISIBILITY IN STATUTE MILES:., I SE GE GE CE GE GE GE GE GE GE GE GE GE GE GE 61-ET I la 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 N/lb 1/4 2

LL I 44. 54.4 54.4 54 .b 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.b 54.b 54.6

oc lI - 5.1 56.6 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.

iTC1c l 53.5 57.2 57.2 57.4 57.4 57.4 57.4 57.4 57.4 57.4 57.4 57.4 57.4 57.4 ,7. 4 57.4lbGCI 50.7 57.4 57.4 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57.5 57S.51'-3cl 53.8 57.5 57.5 51.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7

1Z Lri 51.2 57.9 57.9 56.1 58.1 58.1 58.1 58.1 58.1 58.1 58.1 58.1 58.1 58.1 !4.1 5 .I

1 0C1 51.2 58.3 58.3 5.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.592507 1 .2 56.3 58.3 58.5 58.5 58.5 58.5 58.5 58.5 58.5 54.5 58.5 58.5 58.5 58.5 56.5dO2cl '1.2 58.3 58.3 5f.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 5b.5723C1 51.2 58.3 58.3 5E , 58.5 58.5 58.5 58.5 58.5 58.5 5R.5 58.5 58.5 58.5 5.5 5o .5

^LZq 51.2 58.3 58.3 5 6.5 58.5 56.5 58.5 58.5 568.5 58.5 58.5 58.5 58.5 58.5 58.5 5.5

C: C1 $1.2 58.3 58. 3 5A.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 5b.54'LI 51.4 58.5 58.5 58.7 58.7 58.7 58.7 58.1 58.7 58.7 58.7 58.7 58.7 58.7 S8.7 5b.74"0I 51.6 58.7 58.7 58.8 58.8 56.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 5A.8 $6.835u$ C 51.6 58.7 58.7 5.0 58.4 6.8 58.8 58.8 58.8 58.8 8.8 58.8 58.8 58.8 54.8 56.6

3'021 52.5 59.6 59.6 55.8 59.8 59.b 59.8 59 . 8 59.8 59.8 59.8 59.8 59.8 51.8 $9.8 5.o

2 'C(I 2.9 60.0 60.5 6C.7 60.7 60.1 60.7 60.7 60.7 60.7 6a.7 60.7 60.7 60.7 c. 7 65.7

-ICE1 53.6 61.1 61 61.b 61.8 61.8 61.8 61.8 61.8 61.6 61.8 61.8 61.8 61.8 61.8 61.815221 $3.6 6 .1 61.6 61.0 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 uI.8 61.8I ZCI 54.2 61.6 62.2 6i.4 62.4 62.4 62.4 62.4 62.4 62.4 62.4 62.4 62.4 62.4 2.4 62.4120CI 57.7 66.5 67.2 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.b T.6 67.6

1021 .p 71.3 72.1 7i .8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.8 72.66J27 6.9 75.2 76.2 76.9 26.9 76.9 76.9 76.9 7b.9 76.9 76.9 76.9 76.9 76.9 76.9 7b .9

A 2I b'.9 79.7 60.6 81.4 81.4 81.4 61.4 81.4 81.4 81.4 81.4 81.4 81.4 1 .4 81.4 81.4

7'I L4.4 83.1 84.1 F4.7 84.9 84.9 84.9 84.9 84.9 84.9 84.9 84.9 84.9 94.9 84.9 p4.9

6CCI o6.S 16.b 87.9 8b.0 89.0 89.0 89.2 89.2 89.4 89.4 89.6 89.6 89.6 89.6 89.6 89.0

1C 1 67.0 88.8 91.7 92.U 93.1 93.1 93.3 93.3 93.5 93.5 93.7 93.7 93.7 93.7 93.7 93.74CCI 67.4 99.4 91.4 9!.5 94.6 94.8 95.3 95.3 95.7 95.7 95.9 95.9 95.9 95.9 Y5.9 96.9707

i 67.4 89.6 91.8 92.9 95.5 95.5 96.5 96.6 97.6 98.1 98.7 98.7 99.1 99.1 59.1 99.1

2:;- 67.4 49.6 91.6 9!.9 95.5 95.5 96-5 96,6 97.6 98.1 99.3 99.3 99.8 99.8 99.8 99.8

I5C7 67.4 89.6 91.8 9!.9 95.5 95.5 96.5 96.6 97.6 98.1 99.3 99.3 99.8 100.0 150.0 I0.5

r o,.4 89.6 91.8 93.9 95.5 95.5 96.5 96.6 97.6 98.1 99.3 99.3 99.8 1703 1. 175.U

JAL 5I1M1LR OF OBSERVATIONS: 57

6LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUZNCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVAIIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZScHE AAF CA PEPIOD OF RECORD: 77-86MONTH: JUt HOUQStLSTI: 2120-23G0

CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE bE

FEET I 10 6 5 4 3 2 1/2 2 1 l/Z 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 1 43.7 53.6 53.6 52.6 53.6 53.6 53.6 53.6 53.6 53.6 53.6 53.6 53.6 S3.6 53.6 53.b

E 200001 44.0 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.1 54.L

SE 1890C| 44.0 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.bUE 160001 44.0 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6GE 1400r31 44.7 55.3 55.3 51.3 55.3 55.3 S.3 55.3 55.3 5S.3 55.3 55.3 55.3 55.3 55.3 55.3

LE Z200C) 44.7 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3

SE L00001 44.7 55.3 55.3 55.3 53.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3UE 90011 44.7 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3

GE 8CO0 44.7 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 5S.3 55.3

E. 7rOn1 44.7 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3L, 600CI 44.7 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3

SE 500l 44.7 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6G

r 4501C 44.7 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 51.6

.E 4001C 44.7 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 L5.6 55.6

,E 35001 44.7 55.6 55.6 5S.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 15.6 55.6

:E 30001 45.4 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3

kE 25Gl .45.7 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 57.0 57.C

GE 2C0U0 47.2 59.0 59.0 55.U 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.3 59.J

GE 18001 47.4 S9.5 59.5 55.1 59.5 59.5 59.5 59.5 59.5 59.5 59.5 59.5 59.5 59.5 b9.5 59.55E 150C 48.4 60.5 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0UE 1200) 41.4 62.7 63.2 62.2 63.2 63.2 63.2 63.2 63.2 63.2 6!.2 63.2 63.2 63.2 63.2 63.2

GE 100CI 52.3 66.7 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.-2UE 90C) 53.3 70.4 70.9 7L.9 71.2 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1 71.1

jE 80"1 53.6 73.8 74.3 74.3 74.8 74.8 74.8 74.8 74.8 74.8 78.8 74.8 74.8 74.8 74.8 74.8b E 700 54.8 79.3 79.8 75.8 80.2 80.2 80.2 80.2 80.2 80.2 80.2 80.2 80.2 80.2 00.2 8.2

UE 600) 56.0 82.2 82.7 82.7 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2 83.2

1E 6O0 56.3 84.4 85.7 86.2 86.7 86.7 86.7 86.7 80.7 86.7 86.7 86.7 86.7 P6.7 87.2 07.25E 40Ci 57.3 86.7 88.1 85.4 90.1 9D.4 90.6 90.6 90.6 90.9 90.9 90.9 90.9 90.9 91.4 91.4.E 300) 57.3 86.7 88.6 9[.4 91.9 92.1 93.3 93.8 94.1 94.6 94.6 94.6 94.8 94.8 95.6 91.6bE 20C) 57.3 86.7 88.9 9E.b 92.3 92.6 93.8 94.3 94.6 95.6 96.0 96.0 97.5 98.0 98.8 90.8GE 100) 57.3 86.7 88.9 9C.6 92.3 92.6 93.8 94.3 94.6 95.6 96.0 96.0 97.8 98.3 99.3 100.0

(1E ) 57.3 86.7 88.9 9C.o 92.3 92.6 93.8 94.3 94.6 95.6 96.0 96.0 97.8 98.3 99.3 151.0

IOTAL NUMBER OF OBSERVATIONS: 405

-IL

I

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILIrYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUHRER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JUN HOURSLSTI: ALL


IN GE GE GE EE GE GE GE GE GE GE GL BE GE BE GE GE

FEET i1 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/A 1/2 S/16 114 0

NO CEIL I 45.6 54.2 54.a 54.9 55.1 55.1 55.1 55.1 55.1 55.1 55.1 $5.1 5S.2 55.2 55.2 55.2

':T4T 5 57.3 55.1 57. 2 57 . 3 57.3 57.3 57.3 57 57.3 57.3 57.3 57.318 OO 48.5 56.7 57.3 57.4 57.6 57.b 57.6 57.6 57. 6 57.6 57.6 57.6 57.7 57.7 57.7 57.7

UE lbCOCI 4R.6 56.7 57.4 5.5 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 S7.8 57.6 57.6

I.E 140001 49.1 57.2 57.8 56.0 58.1 58.1 58.1 5.1 58.2 58.2 54.2 58.2 58.2 58.2 58.2 5B.2

S C 12C001 q9.3 57.4 58.1 58.2 58.4 58.4 58.4 58.4 58.4 58.4 58.4 5B.4 58.4 S8.5 58.5 5b.5

GE 1011 49.q4 57.6 58.3 58.4 55.5 58.5 58. 6 58.6 58.6 58.6 58.6 58.6 58:6 S .6 9.6 56.6.E 9"00 499.5 57.7 58.4 58.5 58.6 5A.6 58.7 58.7 -8.7 58.7 5A. 7 58.7 58.7 58.8 8.8 58.

0 800! 49.6 57.9 58.6 46.7 66.9 58.9 58.9 58.9 58.9 58.9 54.9 S8.9 58.9 59.0 19.0 59.0CO 70004 9.7 58.0 58.6 5e.8 58.9 58.9 58.9 58.9 59.0 59.0 5.0 59.0 59.0 59.0 19.0 59.

LE bn!CI 49.7 58.0 58.6 58.8 58.9 58.9 58.9 58.9 59.0 59.0 50.0 59.0 59.0 59.D 19.0 59.0

GE 50001 49.7 58.U 58.7 58.9 59.C 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.1 59.1 59.1 59.1* E 45o1 49.8 58.1 58.8 5S.0 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.2 59.2 59.2 59.23c 400C1 50.2 58.6 59.3 59.5 59.6 59.6 59.6 59.6 59.7 59.7 59.7 59.7 59.7 59.7 59.7 59.7.E 34001 50.6 59.2 59.9 6C.0 60.2 6Q.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 60.3 t0.3 6L.3.. E 3nOcI 51.6 60.2 60.9 61.1 61.2 61.2 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3 b1.3 61.3

..E 25or1 52.4 61.3 62.2 6:.3 62.5 62.5 62.5 62.5 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6uE 2C01 54.1 63.4 64.2 64.4 64.5 64.5 64.6 64.6 64.6 64.6 64.6 64.6 64.7 64.7 64.7 64.7',E 18001 14.5 63.9 64.7 64.9 65.0 65.0 65.1 65.1 65.2 65.2 65.2 65.2 65.2 65.2 b5.2 65.2uE 15001 56.3 66.4 67.5 67.6 67.9 67.9 68.0 68.0 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1

UE 12 CI 59.C 71.0 72.4 72.8 73.0 73.0 73.1 73.1 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2

GE 10011 61.2 75.4 77.3 77.8 78.0 78.0 78.1 78.2 78.2 78.2 78.2 78.2 78.2 78.2 78.2 76.22.F 901 62.0 77.9 80.0 8C.6 80.9 80.9 81.0 81.1 81.1 81.1 81.1 81.1 81.2 81.2 81.2 81.2GZE 8Od t3.0 80.4 82.9 82.6 84.1 84.1 84.2 84.3 84.4 84.4 84.4 84.4 84.4 84.4 69.4 84.45E 70CI 53.7 82.7 85.6 86.7 87.3 87.3 87.5 87.6 87.7 87.7 87.7 87.7 87.7 87.7 87.7 67.7LE 6001 64.2 84.3 87.7 85.3 90.4 90.4 90.6 90.7 90.8 90.8 90.9 90.9 90.9 90.9 90.9 9U.9

11E 5301 64.4 55.3 89.1 91.1 92.9 92.9 93.4 93.6 93.7 93.7 9T.7 93.7 93.8 93.8 93.9 93.9GE 4001 64.6 85.8 89.8 92.1 94.6 94.8 95.5 9S.9 96.1 96.2 96.3 96.3 96.4 96.4 96.5 96.5GE 3001 b4.6 S5.9 90.1 92.4 95.1 95.3 96.4 97.0 97.4 97.7 97.9 97.9 98.2 98.3 98.4 98.5UE 20CI 64.6 85.9 90.1 92.4 95.2 95.4 96.4 97.1 97.5 97.9 98.2 98.2 98.8 99.0 99.2 99.bUF 1301 u4.6 85.9 90.1 92.4 95.2 95.4 96.4 97.1 97.5 97.9 98.3 98.3 98.9 99.2 99.5 10L.0

u. T1 64.6 85.9 90.1 92.4 95.2 95.4 96.4 97.1 97.5 97.9 98.3 98.3 98.9 99.2 99.5 200.0.............................................................................................................................................


I...

,L),AL CLIMATOLOGY BRANCH PERCENTAGE VREI.UENCY Or OCCURRENCE OF CTILING VERSUS VISIBILITYJ'Ai ETAC FROGM HOURLY OBSERVATIONSA1? .EATMER SERVICE/MAC

,lATION NUMRLR: 7214916 STATION KAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD:t 76-85MONTH: JUL HOURSILSTI: 0600-0800

A WINGVISIBILITY IN STATUTE MILESIN IGL GE GE CE GE GE GE GE GE GE GE GE GE GE GE UT

r I 1T 6 5 4 3 2 1/2 2 1 1/2 1 1/14 1 3/14 5/8 1/2 5/16 1/14 0

N', C~LL 1 13.1 19.7 21.? 22.3 22.6 22.6 22.9 22.9 22.9 23.0 23.0 23.0 23.3 23.4 23.5 23.5

::-oT 13.2 19.9 21.9 22.6 22.9 22.9 23.1 23.1 23.1 23.3 23.3 23.3 23.5 23.7 23.8 23.8218C001 13.2 19.9 21.9 22.6 22.9 22.9 23.1 23.1 23.1 23.3 23.3 23.3 23.5 23.7 23.8 23.8

It 160001 13.2 19.9 21.9 22.6 22.9 22.9 23.1 23.1 23.1 23.3 23.3 23.3 23.5 23.7 23.8 23.6,F 1'ln00I 1 3.5 20.2 22.2 22.9 23.1 23.1 23.4 23.4 23.14 23.5 23.5 23.5 23.8 23.9 2". 1 214.1

A12-01 13.6 20.3 22.3 22.0 23.3 23.3 23.5 23.5 23.5 23.7 23.7 23.7 23.9 24.1 214.2 24.2

IC1001 13.6 20.5 22.5 2. 231 2.4 23.7 233 23.7 23.8 23.8 23.8 214.1 214.2 214.3 24.3

C9001 13.6 20.5 22.5 23.1 23.4 23.4 23.7 23.7 23.7 23.8 23.8 23.8 24.1 214.2 24.3 24.34790001 14.0 0.9 22.9 2!.5 23.8 23.8 24.1 214.1 24.1 24.2 24.2 214.2 24.5 214.6 214.7 214.7

-F 7IOl 14.0 20.9 22.9 23.5 23.8 23.8 24.1 24.1 24.1 214.2 24.2 214.2 24.5 214.6 24.7 2Z4.7F bo00i 14.0 20.9 22.9 23.5 23.8 23.8 214.1 24.1 24.1 24.2 24.2 214.2 24 .5 24.6 2B.? 214.7

<K5"!JO 1.4.0 20.9 22.9 23.5 23.9 23.9 24.3 214.3 214.3 24.5 24.5 214.5 214.7 214.9 2S.0 25.2,F 45001 14.3 21.1 23.1 22.8 214.2 24.2 214.6 24.6 214.7 24.9 24.9 214.9 25.1 25.1 25.4 2..4',. 4-OCI 14.6 21.14 23.4 24.1 24.5 214.5 25.0 25.0 25.1 25.3 2S.3 25.3 25.5 25.7 25.8 26.8

413 uTI 15.1 22.1 24.2 214.9 25.3 25.3 25.8 25.8 2S.9 26.1 26.1 26.1 26.3 26.5 26.6 26.6AT!!L10$l 15.5 22.6 214.7 25.4 25.8 25.8 26.3 26.3 2b.5 26.6 26.6 26.6 26.9 27.0 27.1 27.1

Z5001 16.3 23.5 25.7 26.3 26.7 2b.7 27.3 27.3 27.4 27.5 27.5 Z7.5 27.8 27.9 2A.1 26.1,E 20001 17.8 25.3 27.41 2E.1 28.5 28.5 29.0 29.0 29.1 29.3 29.3 29.3 29.5 29.7 29.8 29.d7.E 18101 14.0 25.5 27.7 2e.3 28.7 28.7 29.3 29.3 29.4 79.5 20.5 29.5 29.8 29.9 30.1 3L.1UL isACI 18.6 26.5 28.7 29.4 29.8 29.8 30.3 30.3 30.5 30.6 3n.6 30.6 30.9 31.0 31.1 31.1,f 12L)11 19.14 28.1 30.7 31.4 31.8 31.8 32.4 32.14 32.5 32.6 32.6 32.6 32.9 33.0 33.2 33.2

'100r1 20.2 30.3 33.3 34.2 34.8 34.8 35.3 35. 3 35.4 35.6 35.6 35.6 35.8 36.0 36.1 36.1cC 001 21.5 32.6 36.1 33.3 38.0 38.0 38.5 38.5 38.6 !8.8 38.8 38.8 39.0 39.2 39.3 34.3

UE 8011 22.3 35.3 39.*7 41.2 42.0 42.1 42.6 42.6 42.8 42.9 42.9 42.9 43.2 43.3 43.4 43.4,,f 70C1 22.3 36.5 41.6 43 .9 45.3 45.5 46.0 46.0 46.1 46.3 46.3 46.3 46.5 46.7 46.8 46.8

E 6LCI 22.3 39.0 45.5 49.1 51.3 51.7 52.7 52.8 53.1 S3.5 53.6 53.6 53.9 54.0 54.1 54.1

E1 Yrfl 22.3 39.4 47.1 50.4 56.7 57.5 59.9 60.7 61.5 62.0 62.3 62.3 63.0 63.1 63.2 63.2cC 4001 22.3 39.6 48.0 54.7 60.7 62.2 67.1 69.4 71.1 73.5 73.8 73.9 75.0 75.3 75.14 7b.14

!301~ 22.3 39.6 48.4 55.2 61.4 63.2 69.9 73.1 76.3 80.5 83.2 84.0 86.5 86.9 677.4 87.7CE 2C01 22.3 39.6 48.5 55.3 61.5 63.4 70.1 73.4 77.0 192.2 85.7 86.6 91.0 92.1 93.3 95.2-F 1001 22.3 39.6 48.5 55.3 61.5 63.4 70.1 73.4 77.0 82.2 86.2 87.2 92.0 93.3 95.6 99.6

.7 CI 272.3 39.6 48.5 55.3 61.5 63.4 70.1 73.4 77.0 82.2 86.2 87.2 92.0 93.3 95.6 100.0

TOTAL NUMBECR OF OBSERVATIONS: 748


STATION NUMBER: 724916 STATION NAME: FT OROFRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: JUL HOURS(LST): 0900-1100


IN I GE GE GE GE GE GE GE GE GE GE GE fe GE GE GE GEFEET I 1c 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 S/16 1/4 1

NO CEIL 1 31.4 42.6 44.7 45.7 46.3 46.5 46.5 46.5 46.5 4b.5 46.5 46.5 46.5 46.5 46.5 46.5

uE 200001 32.7 44.3 46.5 47.5 48.1 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.Z 48.2 48.2GE 180001 3'.7 44.3 46.5 47.5 48.1 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2uE 160001 32. '44.3 46.5 '745 48.1 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 46.2

. E 149001 33.2 45.0 47.1 48.1 48.7 48.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8 4b.8

!E 12O01 33.4 45.2 47.3 4E.3 48.9 49.1 49.1 49.1 49.1 49.1 49.1 49.1 49.1 49.1 49.1 49.1

5E 13FOCI 33.7 45.5 47.6 4B.b 49.2 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3 49.3

uE 9OrZI 33.9 45.7 47.8 4ed 49.4 49.b 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6GE 800CI 34.0 46.8 48.0 48.9 49.6 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 '4"7

GE 700CI 34.0 45.8 48.0 48.9 49.6 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7SE 60001 34.0 45.8 48.0 48.9 49.6 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7

uE 50(1 34.0 45.8 48.0 44.9 49.6 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7| E q5001 34.0 45.8 48.0 48.9 49.6 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7SE 4'001 34.4 46.2 48.3 49.3 49.9 50.1 50.1 60.1 50.1 50.1 50.1 50.1 50.1 50.1 50.1 5L.1. E 350- I35.4 47.2 49.3 5C.3 50.9 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1

sE 30001 35.4 47.5 49.6 SC.6 51.2 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3

.E 25001 36.1 48.2 50.3 51.3 51.9 52.0 52.0 52.0 52.0 52.0 52.0 52.0 52.0 52.0 52.0 52.0bE 2lc0l 37.1 49.4 51.b 5Z.5 53.2 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3GE 18001 37.4 49.7 51.8 50.8 53.4 53.5 53.5 63.5 53.6 53.5 63.5 53.5 53.5 53.5 53.5 53.5

.E 15001 38.8 51.3 53.7 54.7 55.3 55.4 55.4 55.4 55.5 55.5 55.5 55.5 55.5 66.5 S5.5 55.5

.E 12001 2.4 56.5 59.3 6C.2 60.9 61.0 61.0 61.0 61.1 61.1 61.1 61.1 61.1 61.1 61.1 61.1

GE 1(o0l 45.2 60.9 b4.3 6S.. 66.3 66.5 66.5 66.5 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6,E 9CCI 45.8 64.2 68.4 7C.3 71.2 71.3 71.4 71.4 71.6 71.6 71.6 71.b 71.6 71.6 71.6 71.6LE 80CIt 46.5 68.2 73.2 75.8 76.9 77.0 77.1 77.1 77.3 77.3 77.3 77.3 77.3 77.3 77.3 77.3

uE 7001 47.1 71.4 77.4 81.2 81.7 82.0 82.2 82.2 82.4 82.4 82.4 82.4 82.4 92.4 82.4 82.4

5E 6001 48.1 74.2 81.5 8E7 88.7 89.1 90.3 90.3 90.6 90.6 9n.6 90.6 90.6 90.6 90.6 90.6

uE 53n[ .8.1 75.3 83.1 88.6 9,.S 93.0 94.7 96. 9S.4 95.5 95.5 96.5 95.5 95.5 95.5 95.5SE 4ar0 49.1 75.5 83.7 84.b 94.2 94.9 96.9 97.6 98.5 98.6 91.9 99.4 99.4 99.4 99.4 99.4SO 30l 48.1 75.5 83.7 85.6 94.3 95.2 97.3 98.0 99.0 99.1 99.4 99.9 99.9 99.9 99.9 99.9

SE 2001 49.1 75.5 83.7 89.6 94.3 95.2 97.3 98.0 99.1 99.3 99.5 100.0 100.0 100.0 I00.0 100.0

.E 1001 44.1 75.5 83.7 84.b 94.3 95.2 97.3 98.0 99.1 99.3 99.5 100.0 100.0 100.0 100.0 IC.0

LE Cl 498.1 76.6 83.7 85.6 94.3 95.2 97.3 98. 99.1 99.3 99.5 I00.0 100.0 1n0.0 100.0 101.0


6LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYU SAFETA C FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORO: 76-85MONTH: JUL HOURSILSTD: 12.0-14C0


IN I SE GE GE CE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 1C 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 518 112 5/16 1/4

NO CLIL I 54.6 63.6 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1 64.1

F 2700or1 57.9 67.U 67.5 61.5 67.5 67.5 67.5 67.5 67.5 67.5 67.5 67.5 67.5 67.5 o7.5 67.6FE 180001 53.1 67.3 67.8 61.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8-r 160rl 58.1 67.3 67.8 63.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.6"1 140001 58.2 67.4 67.9 61.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 b7.9 67.9

-F 120001 53.4 67.7 68.2 6. 68.2 68.2 68. 68.2 68.2 68.Z 6.2 68.2 68.2 68.2 68.2 68.2

1, 10001 5-.7 68.G 68.5 6e. 68.5 68.5 68.5 68.5 68.5 68.5 6R.5 68.5 68.5 68.5 68.5 68.5,E 9CO01 59.2 68.5 69.L 65.v 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.0 09.0 69.06E 8001 59.2 68.5 69.C 65.J 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.0 69.0 t.9.0 69.UuCE 70001 59.2 68.5 69.u 69.. 69.0 69.0 69.0 69.U 69.0 69.0 69.0 69.0 69.0 69.0 b9.0 69.J

I ,F 60U0 59.2 68.5 b9.0 619.U 69.0 69.C 69.0 69.0 69.0 69.0 69.0 69.U 69.0 69.0 69.0 69.0

,E Scu0l 59.5 68.8 69.3 6S.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 9.3 69.3,E 4501l 59.6 68.9 69.4 6S.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4 69.4E 0001 60.0 69.3 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 6S.8E 35001 60.5 69.. 70.3 7C.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.3 7L.3

iE 3'0fl| OI.2 70.8 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3

SE 25JC| 61.3 70.9 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4 71.4uE 2001 o2.6 72.1 72.6 72.6 72.6 72.6 72.6 72.b 72.6 72.6 7Z.6 72.6 72.6 72.6 72.6 7 ..b

S 1 0 I1 L2.6 72.1 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.5 72.6 72.6 72.ao£ 1SU01 69.1 73.6 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3GE 12001 L-.2 78.4 79.2 7s.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2 79.2

bE I015 72.5 84.3 85.5 85.5 85.5 85.5 85.5 85.5 85.5 85.5 85.5 85.5 85.5 85.5 5.5 65.5IC 9301 73.7 87.0 88.2 88.2 88.4 88.4 88.4 8a.4 68. 88.4 88.4 88.4 88.4 88.4 89.4 86.4. eC 9uc 75.1 89.7 91.3 91.4 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7SE 7001 76.0 92.7 94.5 94.9 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2 95.2

UE 600 76.7 94.2 97.0 97.q 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8

IE 5091 77.8 95.7 98.6 98.9 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3 99.3 09.3 99.3CE 40C5 77.9 95.8 98.6 95.u 99.5 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.b:C 3001 73.2 96.0 98.9 99.3 99.9 100.0 100.0 100.0 100.0 100.0 101.0 100.0 100.0 100.0 100.0 10U.0.E 2005 7e.2 96.0 98.9 99.3 99.9 110.0 100.0 100.0 100.0 100.0 100.0 100.0 i00.0 I00.0 110.0 10.O

uC 1oci 78.2 96.0 98.9 95.3 99.9 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 I0O.0 10U.0

uE 05 7.2 96.0 98.9 99.3 99.9 130.0 100.0 300.0 100.0 100.0 100.0 100.0 100.0 IrPO.0 I.0.0 1CO.0


SLO0BAL CLIMATOLOGY BRANCH PERCENTAGE FRE(UENCY OF OCCURRENCE OF CEILING VERSUS VISI8ILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHEk SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-8MONTH: JUL HOURSILSTI: 15,;-1700

CEILING 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 5 4 3 2 1/2 2 1 112 1 l/4 1 314 5/8 1/2 S/16 1/4 0.. . . .. .... - . . .. . . ... . .. .. . . . . . . . . . . . .. . . . . . . . . . .........°. . e. . . . . .. .. ............

NO CEIL I 49.8 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5 52.5

A 20000.1 51.7 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 S4.6 54.6A 18oo01 51.7 54.6 54.6 54.6 54.6 54.6 51.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 S4.6 54.6.E 1600C1 51.7 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6,E 14001 51.7 S4.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6 54.6,E 12O01 51.8 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9 54.9

,iE IOlOrlI 52.2 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3 55.3i.E 900CI 52.5 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6 55.6,E 8r0I 52.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7

SE 70 0 !.0 56.0 56.0 56.0 56.0 56.0 56.0 5bG 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.UGE 6CC 53.1 56.0 56.1 56.0 56.C 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0

F 50001 53.r 56.0 56.c 56. 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.U,E 4500 53.0 56.0 56. 5R.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56 ..E 4r001 53.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.76E 3511' 53.8 56.9 56.9 5t.9 56.9 S6.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 5b.9.E 300C1 54.3 57.3 57.3 53.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3

", 2011 54.7 57.6 57.6 51.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.9 57.8 57.8 57.8i.E 200C 51.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 8.2 5b.2LIE 180CI 55.2 58.2 58.2 5 8.2 58.2 58.2 58.2 58.2 528.2 58.2 58.2 SB.? 5B.2 58.2 58.2 58.2,E I5C 55.7 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 Sb.8UE 12001 58.9 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3

GE 10001 L4.3 68.8 68.9 68.9 68.9 68.9 68.9 68.9 68.9 68.9 6R.9 68.9 68.9 68.9 68.9 68.9VA 9001 66.3 71.8 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.C 72.0 72.0 72.0 72.0 72.0 72.0E 8)C0 U 9.7 76.9 77.5 77.6 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.6

UF 7001 73.0 82.9 84-2 84.5 84.6 64.6 84.6 84.6 84.6 84.6 84.6 84.6 84.6 84.6 d4.6 84.6UE 6U(1l 74.3 85.9 87.7 8e.0 88.2 88.2 88.2 88.2 88.2 88.2 88.2 88.2 88.2 88.2 68.2 86.2

El 5001 76.1 88.7 91.6 92.5 93.8 93.8 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.UiE 0OI 75.6 90.0 93.3 94.3 96.2 96.2 97.1 97.1 97.5 97.5 97.5 97.5 97.5 97.5 97.5 97.5IE 30C 76.8 90.3 93.6 91.1 97.2 97.4 98.7 98.8 99.3 99.7 99.9 99.9 99.9 99.9 99.9 99.9CE 2Un1 76.8 9C.3 93.6 95.1 97.2 97.4 98.8 99.0 99.4 99.9 100.0 100.0 103.0 100.0 I00.0 IC.0

oE lUol 76.8 90.3 93.6 95.1 97.2 97.4 98.8 99.0 99.4 99.9 100.0 100.0 100.0 000.0 I00.0 IlL.o

01 CI 76.P 90.3 93.6 95.1 97.2 97.4 98.8 99.0 99.4 99.9 101.0 100.0 100.0 100.0 IO.0 10L.0


OBAL CLIFATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY0 ETA C FROM HOURLY OBSLRVATIONSR WEATHFR SERVICE/MAC

TATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIOD OF RECORD: 76-85

MONTH: JUL IOURS(LSTI: 18L0-2000

ILING VISIBILITY IN STATUTE MILES

IN 3L GE GE CE GE GE GE GE E GE GE GE GE GE GL GErEEl I 10 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0

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

0 CEIL 1 34.3 39.6 39.7 3S.7 39.7 39.7 39.7 39.7 39.7 39.7 39.7 39.7 39.7 39.7 39.7 39.7

2C0OC1 35.3 40.5 40.7 4C.7 40.7 40.7 40.7 40.7 40.7 40.7 47.7 40.7 40.7 40.7 40.7 40.7E 18001c 35.4 4U.9 41.0 41 U 41.0 41.0 41.0 41.0 41.0 41.0 41.0 41.0 41.0 42.0 41.0 4j.0EE 1b00 35.4 40.9 41.L 41 j. 41.0 41.0 41.0 41.0 42.0 41.0 42.0 41.0 41.0 41.0 41.0 41.0,F 140C 35.8 41.2 41.4 41.4 61.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4 41.4

C 120001 35.8 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 41.4 41.4

,F 100001 36.2 41.6 41.8 41.6 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8E 9r00 36.8 4Z.2 4Z.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4E 8 8oo 37.1 42.5 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7

if 7P001 37.1 42.5 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7

E 6C001 37.1 42.5 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7

'E 50OO1 37.1 42.5 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 4i.7,E 45001 37.1 42.5 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 42.7 4Z.7 47.7 42.7,E 40004 37.9 43.3 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5E 35001 37.9 43.3 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5 43.5C0 300CI 38.2 43.7 43.8 43.6 43.6 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8

Ef 25001 3A.2 43.7 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 43.8 47.8 43.8E 20001 39.4 43.8 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 '44.0 44.0

,c 18001 33.4 43.6 44.J 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.uE 15001 33.8 44.2 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4 44.4

r 12001 40.5 46.5 46.6 46.0 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6

'E 10001 42.0 49.4 49.6 45.b 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6 49.6E 9001 44.8 53.9 54.5 54.5 54.5 54.5 54.5 54.5 54.5 54.5 54.5 54.5 54.5 S4.5 54.5 54.5F 80I 48.1 59.5 63.3 6r.6 60.6 60.6 60.6 60.6 60.6 60.6 60.6 63.6 60.6 60.6 L3.6 6L.6F 7001 50.0 63.2 b4.4 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 65.1 us.1 65.1

IE 6orI 51 .9 67.2 68.8 7C.7 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3

,E 5001 53.4 71.1 74.6 7E.5 80.6 80.6 81.0 81.0 81.0 p1.0 81.0 81.0 81.0 81.3 81.0 41 I .3,E 4001 53.9 73.1 77.6 82.6 86.2 86.6 87.1 87.3 87.5 A7.9 87.9 87.9 87.9 87.9 87.9 87.9

6 E 3001 53.9 73.3 77.8 8 .2 87.1 87.5 88.8 89.4 89.9 91.2 91.4 92.4 91.4 91.4 91.4 91.4iE 2001 63.9 73.3 77.8 83.2 87.1 87.5 88.8 89.6 9c.1 92.4 92.7 92.9 94.0 95.3 96.5 97.0

bf 2301 53.9 73.3 77.6 83.2 87.1 87.5 88.8 89.6 93.1 92.4 92.9 93.1 94.9 96.5 97.9 99.1

(uE I 53.9 73.3 77.8 83.2 87.1 87.5 88.8 89.6 90.1 92.4 93.1 93.3 94.6 96.6 98.7 101.0


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR EATHER SERVICE/MAC

STATION NUM4LR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-85MONTH: JUL HOURS(LST): 2100-2300

CEILING VISIBILITY IN STATUTE RILES

IN It GE GE CE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 a

NO CEIL 1 27.3 36.9 36.9 36.9 36.9 36.9 37.2 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5

1E 200001 27.9 37.5 37.5 37.S 37.5 37.5 37.8 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1ZE LOG 27.8 37.5 37. 5 31.6 37.5 31.5 37.8 38.1 38.1 38.1 3.1 38. 1 38.1 38.1 38.1 36.1GE 16000) z7.8 37.5 37.5 37.6 37.5 37.5 37.8 38.1 38.1 38.1 39.1 39.1 38.1 38.1 38.1 36.1GE 140001 27.8 37.5 37.5 37.5 37.5 37.5 37.8 38.1 38.1 38.1 38.1 38.1 38.1 38.1 39.1 38.1GE 12C001 27.8 37.5 37.5 37.5 37.5 37.5 37.8 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 36.1

uE 10000 27.8 37.5 37.5 37.S 37.5 37.5 37.8 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 3b.1GE 9fl001 Z).1 37.8 37.8 37 .B 37.8 37.8 38.1 38.4 3R.4 38.4 3q.4 38.4 38.4 38.4 18.4 3b.4

E 801 ZR. 1 37.8 37.8 37.8 37.8 37.8 38.1 38.4 38.4 38.4 38.4 38.4 38.4 38.4 38.4 3b.4.E 7000 1 2.4 38.1 38.1 38.1 38.1 38.1 38.4 38.6 38.6 38.6 3q.6 38.6 38.6 38.6 38.6 38.6.E 61U01 Z3.4 38.1 38.1 32.1 38.1 38.1 38.4 38.6 38.6 38.6 38.6 38.6 38.6 38-6 38.6 38.6

.E 50001 28.4 38.1 38.1 3e.1 38.1 38.1 38.4 38.6 38.6 38.6 39.6 38.6 38.6 38.6 38.6 36.6E 4501C 23.7 38.4 38.4 3 .4 38.4 38.4 38.6 38.9 38.9 38.9 39.9 38.9 38.9 38.9 38.9 36.9FE 4000) 28.7 38.4 38.4 38.4 38.4 38.4 38.6 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9 36.9E 35001 29.3 38.9 38.9 38.9 38.9 36.9 39.2 39.5 39.5 39.5 3Q.5 39.5 39.5 39.5 39.5 39.5

GE 3V001 31.1 39.8 39.8 34.8 39.8 39.8 40.1 40.3 4a.3 40.3 40.3 40.3 40.3 40.3 40.3 4U.3

GE 25001 30.4 40.1 40.1 4Z.1 40.1 40.1 40.3 40.6 40.6 40.6 40.6 40.6 40.6 4u.6 40.6 4C.6GE 210ni 30.7 40.3 40.3 41.3 40.3 4f.3 40.6 40.9 41.9 40.9 40.9 40.9 40.9 40.9 40.9 4L.9GE 1800) 30.7 40.3 40.3 41.3 40.3 40.3 40.6 40.9 40.9 40.9 43.9 40.9 40.9 40.9 40.9 4(.9.E 150CI 31.0 41.2 41.2 41.2 41.2 41.2 41.5 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8 41.8E 1

20ri 31.3 41.5 41.5 41.5 41.5 41.5 41.8 42.0 42.0 42.3 42.n 42.0 42.0 42.0 42.0 42.0

GE 10001 31.E 42.6 42.6 42.6 42.6 42.6 42.9 43.2 43.2 43.2 43.2 43.2 43.2 43.Z 43.2 43.2GE 900) 33.0 45.7 45.7 45.7 45.7 45.7 46.0 46.3 46.3 46.3 46.3 46.3 46.3 46.3 46.3 4b.3GE 8001 34.9 50.9 50.9 51.1 51.1 51.1 51.4 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7UE 7001 36.4 54.5 54.5 55.1 5S.1 55.1 55.4 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7.E 6001 36.9 57.1 57.4 58.0 58.0 5b. 58.2 58.5 58.5 58.5 54.5 58.5 58.5 58.5 58.5 58.5

GE 501L 37.5 60.5 61.4 6!.1 64.5 64.5 64.8 65.1 65.1 65.1 65.1 65.1 6S.1 65.1 65.1 65.16E 4001 36.4 64.5 66.8 71.0 74.1 74.4 75.0 75.3 75.3 75.3 75.3 75.3 75.3 75.3 75.9 75.9GE 30C 34.4 66.5 69.b 75.3 79.5 8.1 81.3 81.8 82.1 83.0 87.0 83.0 83.0 93.0 83.8 83.8.E 2001 38.4 66.5 69.6 75.3 79.5 80.1 81.8 83.0 83.5 64.9 85.8 85.8 88.4 89.8 91.2 9i.6

GE 100) 38.4 66.5 69.6 75.3 79.5 80.1 81.8 83.0 83.5 84.9 85.8 85.8 88.6 90.9 93.8 97.2

GE C1 38.4 66.5 69.6 75.3 79.5 80.1 81.8 83.0 83.5 84.9 85.8 85.8 88.9 91.2 95.7 100.0

TOTAL NUMELR OF OBSERVA7IONS: 352

LO6AL CLIMATOLOGY BRANCH PERCENTAG! FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETAC FROM HOURLY OBSLRVATIONSIR WEATHER SERVICE/MAC

TAYION NUMKLR: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: JUL HOURSLSIT): ALL

FILING VISIBILITY IN STATUTE MILLSIN I 5[ GE GL cE GE GE GE GE GE GE GE GE GE GE GE GEE -T I i0 b 5 3 2 i2 2 1 1/2 1 1dq 1 3/4 5/8 1/2 5/16 1/4 a

i0 CEIL I 35.9 V3.4 44.3 4'4.b 4.8 44.8 VV.9 44.9 44.9 45.0 45.0 45.0 45.0 45.0 45.1 4,.1

,E 203CT1 37.4 45.0 45.q 4k.3 46.5 46.5 6.6 46.6 V6.6 46.6 46.6 46.6 46.7 46.7 46.7 46.7f 180001 37.5 45.1 46.1 V6 .V 46.b 46.6 46.7 46.7 46.7 46 .7 6.7 46.7 6.8 46.8 46.8 Vb.8L1600I 37.5 45.1 V6.1 4t .V 46.6 b6.6 46.7 46.7 46.7 46.7 46.7 46.7 46.8 46.8 46.8 46.8" 14071 37.7 45.4 V6.3 46.6 46.8 46.8 46.9 V6.9 46.9 47.0 47.0 47.U 47.0 47.0 47.1 47.1

l 12c301 37.8 45.5 46.5 4.ed 47.0 47.0 47.1 47.1 4T.1 47.1 47.1 47.1 47.2 47.2 47.2 47.2

.1 IOOOM 3q.1 V5.8 46.8 V1.1 47.3 47.3 V7.V 47.4 47.4 47.4 47.4 47.4 41.5 47.5 47.5 47.5F 9CUC7 3A.4 46.1 47. 1 V7 .V 47.6 7.6 '47.7 V7.7 47.7 47.7 V7.7 47.7 4T.8 V7.8 47.8 V7.8A 80001 33.6 46.3 47.2 V7 b V7.8 47.8 47.9 47.9 V7.9 47.9 V7.9 47.9 V8.0 48.0 48.0 4o.0

E1 700C 38.6 V6.4 Vi. 3 V47.7 47.8 47.9 47.9 48.0 48.0 V8.3 44V.0 '48.0 V8.0 48.1 4.1 46.1E4 600C1 38.6 46.4 47.3 47.7 47.8 47.9 47.9 48.0 48.0 48.0 48.0 48.0 48.0 48.1 48.1 46.1

F 500 34.7 46.4 47.4 47.7 47.9 47.9 48.0 48.1 48.1 48.1 4q.1 48.1 48.1 48.2 48.2 '48.2f VSOCI 33.8 46.5 47.5 47.b 48.v 46.0 48.1 48.2 48.2 48.2 44.2 48.2 48.3 48.3 48.3 48.3l 40C1 39.2 47.U 47.9 48.2 48.4 48.5 48.6 48.6 48.6 48.7 44.7 48.7 48.7 48.7 49.8 '4.8

.E 350C| 39.7 47.5 48.4 48.8 49.0 49.0 49.1 49.1 49.2 49.2 49.Z 49.2 49.3 49.3 49.3 49.3GE 7700I 40.1 48.0 49.0 4S.3 49.5 49.6 49.7 49.7 49.7 49.8 49.8 49.8 49.8 49.8 49.9 45.9

, 250CI 43.6 48.5 49.5 44.8 50.0 50.0 50.1 50.2 50.2 50.2 50.2 50.2 50.3 50.3 60.3 56.3ul 200CI 41.4 49.5 50.4 5C.7 51.0 51.0 51.1 51.1 51.2 51.2 51.2 51.2 51.2 51.3 51.3 51.3

C Io80rl 41.5 49.6 50.5 51.9 51.1 51.1 51.2 51.2 51.3 51.3 51.3 51.3 51.3 51.4 c1.4 51.4l 15071 42.4 5O.b 51.7 52.0 52.2 52.2 52.4 52.4 52.S 52.5 52.5 52.5 52.5 52.6 52.6 5c.6

UE 12001 44.9 53.9 55.1 55.5 55.7 55.7 55.8 55.9 55.9 55.9 55.9 55.9 56.0 56.0 56.0 5b.J

LE 100CI 47.7 58.1 59.6 65.1 60.3 60.4 60.5 60.5 6U.6 60.6 60.6 60.6 60.6 60.7 t0.7 C1L.74E 9001 49.2 61.2 63.0 6!.7 64.0 64.0 64.2 64.2 64.2 64.3 64.3 64.3 64.3 64.3 .4.4 64.45.F 8001 51.0 65.2 67.5 6t.5 68.9 69.0 69.1 69.2 69.2 69.2 69.2 69.2 69.3 69.3 01.3 b.3.E 7af, ?.3 68.5 71.5 72.8 73.4 73.5 73.7 73.7 73.8 73.8 73.8 73.8 73.8 73.9 73.9 73.9.E 6001 57.2 71.2 75.U 77.0 78.3 78.4 78.9 78.9 79.0 79.1 79.1 79.1 79.2 79.2 79.2 7v.2

.E 5001 53.9 73.1 77.8 8c.6 83.2 83.4 84.4 84.6 84.8 R5.0 84.7 85.0 85.1 4S.2 85.2 85.2i 43O0 54.2 74.1 79.3 83.1 86.4 86.9 88.5 89.2 89.8 90.2 9?.4 90.6 99.8 9J.8 90.9 9L.9

E 3001 54.3 74.4 79.8 8.8 87.4 88.1 90.3 91.2 92.2 93.3 94.0 94.2 94.7 94.8 94.9 95.0El 2L 54.3 74.4 79.8 8.9 87.4 86.1 90.4 91.4 92.5 94.1 94.9 95.2 96.4 97.U 97.5 98.,C0 107 54.3 74.4 79.8 81.9 87.4 88.1 90.4 91.4 92.5 94.1 95.0 95.4 96.7 97.4 98.3 9o .t

IE TI 54.3 74.4 79.8 81.9 87.4 88.1 93.4 91.4 92.5 94.1 94.1 95.4 96.7 97.5 98.6 10U.0

TOTAL NUMPER OF OBSERVATIONS: 3q37

*LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY,,AFETAC FROM HOURLY OBSERVATIONS%IR WEATHER SERVICE/MAC


MONTH: AUG HOURS(LST): 0600-0800..° ..... ....... ... °... . .. .. .. .. .. .. .. .. .. .. .. .. .. ..... . ... .. . .. ..... .. .... ....... . . . . .

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEE

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 S/A 1/2 5/16 1/4

NO CEIL 1 14.7 21.7 23.4 24.3 25.1 25.2 25.3 25.4 25.4 25.6 25.6 25.6 25.7 25.8 26.0 26.5

,E 200001 14.8 22.1 23.9 24.d 25.7 25.8 26.0 26.1 26.1 26.2 26.2 26.2 26.3 26.5 26.6 27.2E 18001I 14.8 22.1 23.9 24.8 25.7 25.8 26.0 26.1 26.1 26.2 26.2 26.2 26.3 26.S 26.6 27.2

,E 16CO1 14.8 22.1 23.9 Z,4.8 25.7 25.8 26.0 26.1 26.1 26.2 26.2 26.2 26.3 26.5 26.6 27.2iF 1400L0 15.2 23.0 24.8 25.7 26.6 26.7 26.9 27.0 27.0 27.1 27.1 27.1 27.2 27.4 27.5 28.1.E 120001 15.5 23.4 25.2 26. 27.0 27.2 27.5 27.6 27.6 27.7 27.7 27.7 27.9 28.0 24.1 26.A

.E ICOONC 16.0 24.0 25.8 26.7 27.6 27.9 28.1 28.3 28.3 28.4 29.4 28.4 28.5 28.6 2A.8 29.4SE 9c000 16.0 24.2 26.0 26.9 27.7 28.0 28.3 28.4 28.4 28.5 28.5 28.5 28.6 28.8 28.9 29.5,E 80001 16.1 24.3 26.1 27.U 27.9 28.3 28.5 28.6 28.6 28.8 28.8 28.8 28.9 29.0 29.2 29.8iE 7O01 16.1 24.3 26.1 27.u 27.9 28.3 28.5 28.6 28.6 28.8 29.8 28.8 28.9 29.0 29.2 29.811E 60001 16.2 24.4 26.2 27.1 28.0 28.4 28.6 28.8 28.8 28.9 24.9 28.9 29.0 29.2 29.3 29.9

'E SPOOl 16.6 24.8 26.6 27.5 28.4 28.8 29.0 29.2 29.2 29.3 29.3 29.3 29.4 29.5 29.7 3U.3S,! 4S001 16.6 24.8 26.t 27.6 28.4 28.8 29.0 29.2 29.2 29.3 29.3 29.3 29.4 29.5 29.7 3L.3GE 400 16.8 25.2 27.0 2?.9 28.8 29.2 29.4 29.5 29.5 29.7 29.7 29.7 29.8 29.9 30.1 3L.7lE 39001 16.8 25.3 27.1 2f.7 28.9 29.3 29.5 29.7 29.7 29.8 29.8 29.8 29.9 30.1 31.2 3L.8GE 30001 17.0 25.7 27.5 2e.4 29.3 29.7 29.9 30.1 30.1 30.2 30.2 30.2 30.3 30.4 30.6 31.Z

6C 25001 17.8 26.5 28.3 29.2 30.1 30.4 30.7 30.8 33.8 30.9 30.9 30.9 31.1 31.2 31.3 32.0(,E 20001 13.7 27.7 29.5 31.b 31.5 31.8 32.1 32.2 32.2 32.4 32.4 32.4 32.5 32.6 32.7 33.4GE I8OC) 19.2 28.4 30.2 31.2 32.1 32.5 32.7 32.9 32.9 33.0 33.0 33.0 33.1 33.2 33.4 34.GE SOCI 20.7 30.3 32.2 33.4 34.1 34.5 34.8 34.9 34.9 35.0 3r.0 35.0 35.2 35.3 35.4 3t.1GE 120C1 22.9 33.4 35.4 36.7 37.7 38.1 38.4 38.5 318.5 38.6 38.6 38.6 38.7 38.9 39.0 3,.

UE IDOCI 24.2 35.9 38.6 4E.2 41.3 41.7 41.9 42.1 42.1 42.2 4?.2 42.2 42.3 42.5 47.6 43.26E 900l 25.4 3,.4 42.5 44.4 45.7 46.0 46.3 46.4 46.4 46.5 46.5 46.5 46.7 46.8 46.9 47.6GE 80r 25.0 41.7 45.8 48.1 49.7 50.3 50.6 50.8 50.8 51.0 51.0 51.0 51.2 51.3 51.4 52.0CE 7001 26.1 44.5 49.9 52.6 54.9 55.4 55.8 56.0 56.0 56.3 56.3 56.3 56.4 56.5 56.6 57.3

fhE 6001 26.2 46.7 53.1 57.2 60.5 61.1 61.8 62.1 62.1 62.4 62.4 62.4 62.5 62.7 62.8 63.4

GE 5001 26.2 48.0 55.8 61.8 67.0 68.0 69.3 69.8 69.9 70.2 70.2 70.2 70.3 70.5 70.6 71.2Ct 40C 26.2 48.6 57.3 64.2 70.2 71.2 74.6 76.0 76.7 77.6 77.7 77.7 78.0 78.3 74.4 79.j

.E 30rl 26.2 48.8 57.8 65.U 71.1 72.4 77.0 79.b 8J.9 83.1 84.5 61.5 85.8 86.3 86.4 87.5bE 2001 26.2 48.8 57.8 65.1 71.2 72.5 17.4 80.1 82.1 84.8 87.2 87.3 90.7 93.0 93.4 94.9GE 10l 26.2 48.8 57.8 65.1 71.2 72.5 77.4 80.2 82.2 84.9 87.6 87.7 91.3 93.7 95.0 99.5

GE CA 26.2 48.8 57.8 6s.1 71.2 72.5 77.4 80.2 82.2 94.9 87.6 87.7 91.3 93.7 95.0 lOG..]

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


GLOSAL CLIHATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PEPIO0 OF RECORD: 76-85MONTH: AUG HOURS(LST): 09 0-1100

CE ILING IILXYISTTTMLE

IN I GE GE GE GE BE GE BE GE GE GE GE GE BE GE GE GEFEET I 10 6 5 4 3 2 1/Z 2 1 1/2 1 1/14 1 314 5/8 I/Z 5/16 1/4 1

NO CEIL 1 34.2 44.9 46.8 47.5 47.9 48.0 48.0 48.0 48.0 48.0 498.0 48.0 48.0 48.0 48.0 4k.0

GE 2000CI 34.8 46.4 48.3 49.0 49.4 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 4 .56E 180001 34.9 46.7 48.6 49.3 49.6 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8LE 160001 34.9 46.7 48.6 49.3 49.6 49.8 49.8 49.R 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8,.E 140001 35.0 46.8 48.7 49.4 49.8 49.9 49.9 49.9 49.9 49.9 44.9 49.9 49.9 49.9 4o.9 49.9

GE 120001 36.2 48.2 50.2 51.0 51.3 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 11.4 51.4

GE 100001 37.0 49.5 51.5 52.3 52.6 52.7 52.7 52.7 52.7 52.7 5,.7 52.7 52.7 52.7 52.7 52.7GE 90001 37.0 49.5 51.5 52.3 52.6 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.76E 81CO 37.0 49.5 51.5 52.3 52.6 52.7 52.7 52.7 52.7 52.7 52.7 52.7 5Z.7 52.7 52.7 52.7.E 70001 37.0 49.5 51.7 52.4 52.7 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9 52.9GE 60001 37.1 49.8 51.8 52.5 52.9 53.0 53.0 53.0 53.0 53.0 53.0 53.0 53.0 53.0 $3.0 53.0

GE 5001C 37.3 49.8 51.9 52.6 53.0 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1GE 4S0CI 37.3 49.8 51.9 52.6 53.0 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 53.1 b3.1 53.152 40001 39.5 51.0 53.1 53.9 54.3 54.4 54.4 54.4 54.4 54.4 54.4 54.4 54.4 54.4 5.4 54.4uE 35001 39.2 52.1 54.3 55.2 55.6 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 55.7 5S.7BE 30ol 39.5 52.5 54.6 56.6 56.0 56.1 56.1 56.1 56.1 56.1 56.1 56.1 56.1 56.1 a6.1 56.1

GE 25001 40.0 53.1 55.2 58.2 56.5 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7GE 200c 41.3 54.5 56.8 53.7 58.1 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 11.2 56.2uE 1800) 42.1 55.4 67.6 58.6 58.9 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.0 59.uBE 1:001 44.3 58.0 60.4 61.3 61.7 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8 51.8 6i.8GE 12001 48.0 63.5 66.5 67.5 67.9 68.0 68.0 68.0 68.0 68.0 68.0 68.0 68.0 68.0 ba.O 6b.0

GE 100CI 50.2 69.4 73.2 74.3 74.6 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8GE 9001 51.3 73.7 78.3 75.6 80.1 80.2 80.2 80.2 8J.2 80.2 83.2 80.2 80.2 S0.2 6P.2 8U.2GE 800) 52 3 76.2 81.4 83.2 84.2 84.3 84.3 84.3 84.3 894.3 84.3 84.3 84.3 84.3 b4.3 F4.3GE 7001 52.7 78.0 84.3 86.7 88.2 86.3 88.3 88.3 88.3 88.3 88.3 88.3 88.3 86.3 88.3 88.3GE 6001 52.9 79.3 86.4 85.3 91.5 91.7 91.9 91.9 91.9 91.9 91.9 91.9 91.9 91.9 91.9 91.9

GE 50l 53.0 80.2 88.2 91.8 95.4 95.7 96.2 96.3 96.3 96.3 96.3 96.3 96.3 96.3 96.3 96.3GE 4001 53.1 80.4 88.5 92.6 96.7 97.1 98.5 99.U 99.2 99.2 99.2 99.2 99.2 99.2 99.2 99.26E 3001 53.1 80.4 88.5 92.6 96.9 97.4 98.7 99.4 99.5 99.6 99.8 99.8 100.0 100.0 120.D 10u.u.E 2001 53.1 80.4 88.5 92.6 96.9 97.4 98.7 99.4 99.5 99.6 99.8 99.8 100.0 1C.0 120.0 120.0GE 1001 53.1 80.4 88.5 92.b 96.9 97.4 98.7 99.4 99.5 99.6 99.8 97.8 110.0 100.0 10.0 100.0

UE 01 53.1 80.4 88.5 92.6 96.9 97.4 98.7 99.4 99.5 99.6 9q.8 99.8 100.0 100.0 110.0 10.0

TOTAL NUMOER OF OBSERVATIONS: 940

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUkRENCL OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OdSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STIAlON NAME: FT ORD/FRITZSCHE AAF CA PFIOD OF RECORD: 76-85MONTH: AUG HOURS(LSTI: 120f-14C0

(.ECLING VISIBILITY IN STATUTE MILESIN I Gc GE G1 If GE GE GE GE GE GE GE GE GE GE GE E

FEET 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 31/ 5/8 1/2 5/16 1/4 0

10 CEIL I 5B.2 64.9 65.6 6S.6 65.8 65.8 65.8 65.8 65.8 65.b 6S.8 65.8 65.8 65.8 65.8 65.8

GE 200OoI 69.7 68.0 68.7 68.7 68.9 68.9 68.9 68.9 68.9 68.9 68.9 68.9 68.9 68.9 o3.9 66.9GE 180001 ol.3 68.7 69.4 6S.4 69.6 69.6 69.6 69.b b9.6 69.6 69.6 69.6 69.6 69.6 9.6 69.6GE 160001 61.3 68.7 69.4 69.4 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.b

uE 14COC bl.4 68.6 69.5 6S.5 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 9.8 61.8

GE 12C00 62.5 69.9 70.6 71.6 70.8 70.8 70.8 70.8 70.8 70.R 7n.8 70.8 70.8 70.8 70.8 7L.8

GE 100001 64.2 71.5 72.3 72.3 72.5 72.5 7Z.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5 72.5*,E 90001 64.2 71.5 72.3 72.3 72.5 72.5 72.5 72.5 72.5 72.s 72.5 72.5 72.5 72.5 72.5 72.5GE 80001 64.6 72.0 72.7 72.7 73.0 73.0 73.0 73.3 73.0 73.0 71.0 73.0 73.0 73.0 73.0 73.u

IT 7COCI 64.8 72.3 73.0 73.0 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2

uE 60C 64.8 72.3 73.0 72.0 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2

GE 500C 65.0 72.5 73.2 7!.2 73.5 73.5 73.5 73.5 73.5 73.5 T3.5 73.5 73.5 73.5 73.5 73.5.E 45001 65.4 7Z.9 73.6 73.o 73.8 73.8 73.8 73.8 73.8 73.8 7!.8 73.8 73.8 73.8 73.8 73.8LE 43011 6S.2 73.8 74.5 74.S 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8GE 35Oi 66.8 74.4 75.1 75.1 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4 75.4

GE 30001 67.4 75.0 75.7 75.7 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1 76.1

GE 250C 67.4 75.4 76.1 76.1 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4GE 20001 t9.0 7b.0 76.7 76.7 77.0 77.0 77.0 77.0 77.j 77.0 77.0 77.0 77.0 77.0 77.0 77.J,f 18 01 68.1 76.1 76.8 76.8 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1 77.1

GE 150C G9.4 77.9 78.6 78.6 78.9 78.9 78.9 78.9 78.9 78.9 79.9 7P.9 78.9 78.9 7A.9 7b.9

LE 12301 73.3 82.5 83.3 82.3 83.7 83.7 83.7 83.7 83.7 43.7 83.7 83.7 83.7 83.7 83.7 83.7

6E 1001I 76.9 87.4 88.3 88.3 88.7 88.7 88.7 88.7 88.7 88.7 88.7 88.7 88.7 98.7 d8.7 86.76E 9001 7-.2 89.b 90.7 9(.7 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 91.1 Y1.1 91.1Gc 80C1 78.7 91.3 92.5 92.6 93.2 93.2 93.2 93.2 93.2 93.2 93.2 93.2 93.2 93.2 91.2 93.2GE 70CI 79.6 93.0 94.4 94.6 95.4 95.4 95.4 95.4 95.4 95.4 9S.4 95.4 95.4 95.4 ys.4 96.4GE 6C1 79.9 94.2 95.6 96.0 97.0 97.0 97.0 97.0 97.0 97.0 97.0 97.U 97.0 97.0 97.0 97.C

6E SO1 80.6 95.1 97.0 97.4 99.8 98.8 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9 98.9F 40CI 80o.6 95.4 97.3 97.6 99.0 99.2 99.4 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.6 99.6

GE 3001 aC.6 95.6 97.5 9e.f 99.4 99.5 99.8 100.0 100.0 n0.0 100.0 100.0 100.0 100.o iuG.O 110.36E 2003 80.6 95.b 97.5 96.3 99.4 99.5 99.8 100.0 100.O 100.0 100.0 101.V 100.0 130.0 I .0.0 1O.0GE 1001 60.6 95.b 97.5 98 .d 99.4 99.5 99.8 100.0 100.0 100.0 100.0 100.0 100.0 100.0 I . aIOU .0

GE 0| 80.6 95.6 97.5 98.0 99.4 99.5 99.8 100.0 I00.0 100.0 1O0.fn 100.0 100.0 130.0 1.0.0 10L.0

TOTAL NUMEtP OF OBSERVATIONS: F.0

38AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY4FETAC FROM HOURLY OaSERVATIONSm WEATHER SERVICE/MIAC

ATION NUMBLR: 724916 STATION NAME: FT OPY/FRITZSCHE AAF CA PEPIOD OF RECORD: 76-8BMONTH: AUG HOURSILST): 1527-1700

....e..e...e.....t..e....o..........e..e.. ........... ee...e...........................oe...e.....o.......................

ILING VISIBILITY IN STATUTE MILES

IN 5 IE GE GE IF GE GE GE GE GE GE GE GE GE GE GE EEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/ 1 6 1/4 D

CEIL I 5l.0 54.7 54.7 54.7 S .7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7 54.7

20001 53.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.9 57.918010 ,4.3 58.4 58.4 5E.4 58.4 58.4 98.4 58.4 58.4 58.4 58.4 58.4 58.4 SA.4 59.4 58.416COC 1 54.3 58.4 58.4 SB.4 58.4 58.4 58.4 58.4 59.4 58.4 5A.4 SB.4 58.4 58.4 53.4 5E.41400{ 54.6 58.7 58.7 s.7 58.7 56.7 58.7 58.7 58.7 58.7 58.7 58.7 58.7 58.7 S8.7 5b.7

127001 55.0 59.4 59.4 5S.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4 59.4

100001 55.7 61.1 60.1 6[.1 60.1 60.1 60.1 60.1 60.1 60.1 60.1 60.1 60.1 60.1 60.1 6f.190001 55.7 60.1 b0.1

6C.1 60.1 60.1 ba.1 60.1 60.1 60.1 60.1 60.1 60.1 60.1 b1.I 6L.1

SOON1 56.1 60.5 60.5 6C.5 60.5 60.5 bo.5 60.S 60.5 60.5 60.5 60.5 60.5 60.5 o.S 6L.57C31I 56.2 61.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.T 60.7 oT.7 b.76'001 56.2 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 (7.7 61.7

500C1 56.2 60.7 62.7 6E.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 6D.7 bO.7 bu.7450C) 56.9 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.4 61.44C0 1 57.3 61.9 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.0 62.035001 57.8 62.3 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 b2.5 62.5300c1 59.0 63.3 63.4 62.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4 63.4

24001 5A.0 63.4 63.6 61.b 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.620001 54.2 63.6 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 67.7 63.7 63.7 63.7 63.7 63.718001 58.2 63.6 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 67.7 63.7 63.7 63.7 63.7 63.7150E 1 61.0 65.7 65.8 65.8 6S.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.8 65.9 65.8 65.812f01 C2.9 69.3 69.4 6S.4 69.4 69.4 69.4 69.4 69.4 69.4 60.4 69.4 69.4 69.4 69.4 69.4

E OO1 56.3 73.5 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 73.7 77.7 73.790F 1 l9.) 77.0 77.1 77.1 77.3 77.3 77.3 77.3 77.3 77.3 77.3 77.3 77.3 77.3 77.3 77.38001 71.6 41.3 81.4 81.6 81.7 81.7 81.7 81.7 B1.7 81.9 81.9 81.9 91.9 P1.9 81.9 61.9

7 17 1 73.1 84.6 85.2 8E.5 85.6 85.6 85.6 85.6 85.6 85.7 89.7 85.7 85.7 85.7 85.7 85.7

6001 74.9 88.1 88.8 8;.3 89.5 89.5 89.5 89.5 89.5 89.6 80.6 89.6 89.6 89.6 89.6 89.b

$001 76.5 91.3 92.9 94.0 95.2 95.2 95.2 95.3 95.3 q5.4 9S.4 95.4 95.4 9S.4 9S.4 95.44001 76.7 92.5 94.6 95.7 97.9 98.1 98.1 98.3 98.5 98.9 98.9 98.9 98.9 98.9 98.9 96.9

3UCI 76.7 92.9 95.2 9k.3 9R. 5 98.6 98.8 99.0 99.2 99.7 99.9 99.9 99.9 99.9 99.9 99.9E 2fnlI 76.7 92.9 95.2 96.3 98.5 96.6 98.8 99.0 99.3 99.9 103.0 100.0 100.0 i0.0 I. 0. 105.0E OCI 76.7 92.9 95.2 9t.3 98.5 98.6 98.8 99.0 99.3 99.9 109.0 100.0 100.0 1O0.0 10.0 105.0

E CI 76.7 92.9 95.2 9k.3 98.5 98.6 98.8 99.0 99.3 99.9 100.0 100.0 100.0 100.0 100.0 ICU.0

)TAL NUMILP OF OBSERVATIONS: 722

L CLIMATOLOGY BRANCH PERCENTAGE FREUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYTAC FROM HOURLY OdSERVATIONS.EA7HFF; SERVICE/MAC

ECN NtiUPLR: 724916 STAIION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: Tb-85MONTH: AUG HOURS(LSIi: 186n-2000..;.........................................................'.. '... ;.... .... .............................................

I N& VISIBILITY IN STATUTE MILESLL GE GE 6 GE GE GE GE GE GE GE GE GE GE GE uE

T Ic 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4

EIL I 41.6 45.5 45.5 4E.5 45.5 45.5 45.5 45.5 45.5 4S.5 45.5 45.5 45.5 45.5 q5.5 4 S.b

CD0011 42.0 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.9 4L.'.arl 4?.0 47.0 47.0 41.0 47.0 47.0 47.0 47.U 47.0 47.0 47.0 V7.0 41.0 47.0 47.J '.7,

67OCj0 47.0 47.0 VT . 47. V7.0 47.0 47.0 47.0 47.0 47.0 47.0 47.0 V7.U 47.0 47 .

.41C7 42.0 47.2 47.2 41.2 47.2 47.2 47.2 47.2 47.2 47.Z 47.2 47.2 47.2 47.2 47.2 47.2, zc2a 42.9 48.1 48.1 4E.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 46.1 49.1 44 .1

IDOC7C 43.6 48.8 48.8 4 E .8 48.8 48.8 4.8 44.8 48.8 V8.8 48.8 48.8 NV.8 46.8 4P.8 4b.6

9COI 43 .6 48.8 8.8 8.0 48.8 48 8.8 48.8 48.8 48.8 48.V 44.8 48.8 48.6 48.8 4,.6

810c1 43.6 48.8 48.8 48.8 48.6 48.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8 48.8 49.87C3V1 47.6 46.8 48.8 44.8 44.8 48.8 48.8 48.8 48.8 48.8 44.8 48.8 48.8 46.8 408 46.6600C 43.6 4V.8 48.8 46.8 48.8 48.8 48.8 48.8 48.8 48.8 49.4 48.8 48.8 48.8 49.8 4b..

51J001 4 3.9 49.1 49.1 49r,.1 49.1 49.1 49.1 49.1 49.1 49.1 419.1 49.1 49.1 49.1 '.9.1 49.14CC1 44. 3 49.5 49.5 41.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 49.5 09.54UOI 44.6 49.8 49.6 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8

34001 44.8 50.0 53.0 5C.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0

300CI 45.1 51.0 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2

250C1 45.1 51.0 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 51.2 1.2 51.2210C1 45.3 51.Z 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 S1.4 51.4181ci 45.3 51.4 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.b 11.6 51.b

15011 46.5 52.6 52.8 52.6 52.8 52.8 52.8 52.8 52.V 52.8 52.9 52.8 52.8 52.8 b7.8 5'.8

12001 49.R 56.6 57.1 51.1 57.1 57.1 57.1 57.1 51.1 57.1 57.1 57.1 57.1 57.1 57.1 57.1

10C1 2.3 49.9 60.4 6C.4 60.4 60.4 60.4 60.4 60.4 60.4 61.4 60.4 60.4 60.4 6.4 60.49001 54.2 62.3 63.C 62.0 63.0 63. .63.0 63.0 63.0 63.0 6 3.0 63.0 63.0 63.0 67.0 63.0POC1 .6.8 68.1 66.7 66.b 66.8 66.8 66.8 66.8 66.8 66.8 66.8 66.8 66.8 66.8 66.8 66.67001 S1.4 71.0 71.9 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 72.2 02.2 7Z .,260P1 50.4 74.8 76.6 71.3 78. 78.1 73.1 76.1 78.1 78.1 7S.1 78.1 78.1 7b.1 78.1 74.1

Srl 4i.9 79.2 81.4 82.8 84.2 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 894.5 94.5 64.140ol 61.5 80.7 83.5 44.9 87.2 87.7 a8.2 88.4 68.7 88.7 89.7 8.7 88.7 86.7 86.7 8b.730C1 61.6 81.9 84.9 86.3 89.4 49.9 91.3 92.0 92.5 92.9 93.6 93.9 95.0 95.0 94.0 9 t.0

20I t2.0 82.3 85.4 86. 90.1 90.6 92.0 92.7 93.2 93.9 95.1 95.7 97.9 98.4 98.8 99.0lO6 L2.0 82.3 85.4 86.8 93.1 90.6 92.T3 92.7 93.2 93.9 95.1 95.7 97.9 49.0 9Q.3 99.8

rl bl.'. 92.3 85.4 86.8 90.1 90.b 92.0 92.7 93.2 93.9 95.1 95.7 97.9 99.c (9.3 125.0

AL NUMPER OF OSERVATIONS: 576

LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETAC FROM HOURLY OBSERVATIONS

IR IEATNER SERVICE/MAC

3TATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-AC

F MONTH: AUG IOURS(LSTI: 2100-2300

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE EE 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

'O CETL I 42.3 51.1 51.1 51.1 51.1 51.1 51.1 S1.1 S.1 S1.1 SI.1 51.1 51.1 1.1 51.1

GE 200OCI 42.3 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 11.1 51.1.E 1800C1 42.3 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.1 51.I 51.1 51.1 51.1 S1.1 51.1 51.1E 1IOC1 42.3 51.1 51.1 51.1 51.1 51.1 51.3 5 I.1 51.1 51.1 S1.1 51.1 1.1 51.1 51.1 51.1F 14C00 42.3 51.1 51.1 51.1 51.1 51.3 51.3 1 S.3 51.3 51.1 51.3 51.3 51.3 51.3 51.1 S1.11- 120001 42.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.6 S1.6 51.3 S1.3 51.3 51.3 51.3 51.3

E OOC0I 42.6 51.6 51.6 S1.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6.,E 9COCI 42.6 51.6 51.6 51.6 51.6 51.6 51.6 $1.6 S1.6 51.6 51.6 51.6 S1.6 51.6 51.6 S1.6." 8CO01 42.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 S1.6 51.6 S1.6 51.6 51.6 51.6 51.6 51.6

-E 760 J 42.6 51.6 S1.6 S1.6 51.6 51.6 1.6 51.6 51.6 S1.6 S1.6 51.6 51.6 S1.6 51.6 $1.6- 60OCI 42.6 51.6 51.6 51.6 1.6 51.6 51.6 1.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6 51.6

500C1 43.1 52.1 52.1 S2.1 52.1 52.1 52.1 52.1 S2.1 S2.1 S2.1 52.1 52.1 52.1 52.1 52.45 40C 43.1 52.1 52.1 52.1 52.1 52.1 52.1 52.1 S2.1 52.1 52.1 52.1 S2.1 52.1 52.1 52.14 5o01 43.1 S2.1 52.1 52.1 52.7 52.7 52. 52.7 5 52. 1 52.1 .1 52.7 S.7 52.1 52.1 5z .1

6E 3501 43.6 52.7 52.7 S2.7 52.7 52.7 52.7 52.7 52.7 S2.7 52.7 52.7 52.7 52.7 52.7 52.7,E 3COol 43.6 S2.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 $2.7 52.7 $2.7 52.7 52.7 52.7 5Z.7

,E 2511I 43.6 S2.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 52.7 57.7 52.7 52.7 52.7 52.7 5.2.7,E 2C001 44.4 53.5 53.5 53.5 53.5 53.5 53.5 53.5 S3.5 53.5 53.S 53.5 53.5 S3.5 ,3.5 53.t.6 18011 44.9 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 54.3 510.3 -;..3 1,4.3 54. 3uE 1'001 45.5 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 55.1 5S.1 55.1 55.1 5.1 1.1 5.1I" 120C1 47.9 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 59.3 5V.3

.E 117oc 50.1 63.0 63.0 63.0 63.0 63.0 63.0 63.C 63.0 63.C 63.0 63.1 63.? 3.3 .T.c 61.j1E 9001 52.1 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 66.2 bb.2 S,. tb.,.6 900 53.5 68.1 68.! 68.1 68.1 68.1 68.3 68.1 68.1 68.1 6.1 68.1 68.1 68.1 bR.1 66.1.6 7001 56.6 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.8 71.A 71.8 71.9 71.8 71.8 i.8 71.8

,C 6001 56.6 74.2 75.0 75.3 75.8 75.8 75.8 75.a 75.8 75.8 75.8 75.8 75.8 75. 15.8 75.d

F C 57.4 77.1 79.3 75.A 83.6 80.6 90.6 80.6 80.6 80.6 0.6 80.6 80.6 4U.b 6&.6 8-.6

4011 57.7 79.5 81.6 82.2 84.6 E4.6 84.6 94.b 64.6 84.6 84.8 84.8 84.8 14.6 14.8 8.4

,E 2001 54.2 81.6 94.6 85.1 88.0 88.0 88.3 88.3 8a.6 A9.4 89.9 89.9 91.8 91.A V1.8 9Z.3,E 2001 59.3 82.7 85.6 86.2 89.1 89.1 89.9 89.9 9U.2 91.0 92.8 92.8 95.7 96.3 97.1 97.t.E loci 59.3 82.7 85.6 86.2 89.1 89.1 89.9 89.9 90.2 91.0 92.8 92.8 96.0 96.8 97.9 99.2

C, 0I 59.3 82.7 85.E 86.2 89.1 89.1 99.9 89.9 90.2 91.0 9?.8 92.8 96.0 97.1 94.1 10.-

TOTAL NI'M0ER OF OBSERVATIONS: 376

.. . .. . . ...... ..J

SGLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFETAC FROM HOURLY O6SLRVATIONSAIR WEATHEN SERVICE/MAC

STATION NUM3ER: 724916 STATION hAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: AUG HOURSILSTI: ALL

CE ICING VISIBILITY IN STATUTE MILES


FEET 1 10 b 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

1.0 CEIL 1 39.9 46.9 47.8 4E.1 48.4 46.4 48.4 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.5 48.6

,E 200001 41.3 4a.7 49.6 49.9 50.2 50.2 50.2 50.3 50.3 50.3 50.3 50.3 50.3 50.3 50.4 55.5.r 180001 41.5 49.) 49.9 5L.2 50.5 50.5 50.6 50.6 50.6 50.6 50.6 50.6 50.6 50.7 50.7 5 .A

,,E 16000c 41.5 49.0 49.9 5c.2 50.5 50.5 5C.6 50.6 53.6 50.6 50.6 50.6 50.6 50.7 50.7 56.8

UE 14000 41.7 49.3 50.2 50.5 50.8 50.8 50.8 50.9 50.9 50.9 59.9 50.9 50.9 50.9 51.0 1.1, 120001 q2.4 50.1 51.0 51.4 51.6 51.7 51.8 51.8 51.8 51.8 51.8 51.8 51.8 51.9 51.9 52.J

5 ICO0O 43.2 51.1 52.1 52.3 52.6 52.7 52.7 52.8 52.8 52.8 5Z.8 52.8 52.8 52.8 52.9 S3.0

3E 9001 43.2 51.1 52.0 5i.3 52.6 52.7 52.8 52.8 52.8 52.8 52.8 52.8 52.8 52.9 52.9 53.0

cGE 80001 .3.4 51.3 52.2 52.5 52.8 52.9 53.0 53.0 53.0 53.0 33.0 53.0 53.0 53.1 53.1 53.2

GE 7C00 43.5 51.4 52.3 52.b 52.9 53.0 53.1 53.1 53.1 S3.1 53.1 53.1 53.1 53.2 :T.2 53.3GE 6 4O0 43.5 51.5 52.4 52.7 53.0 53.1 53.1 53.1 53.1 53.2 53.2 53.2 53.2 53.2 53.2 53.4

5001 43.8 51.7 52.b 52.9 53.2 53.3 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53.5 53.5 53.66E 450CI 44.0 51.9 52.9 S3.2 53.5 53.6 53.6 53.6 53.6 53.7 53.? 53.7 53.7 53.7 53.7 53.6

44 000 44.6 52.6 53.5 53.9 54.2 54.3 54.3 5433 5 54.4 54.4 54.4 59.4 54 . 54.5

GE 350CI 45.0 53.1 54.1 54.4 54.7 54.4 54.9 54.9 54.9 54.9 54.9 54.9 54.9 55.0 55.0 55.1CE 30001 45.3 53.7 54.7 55.0 55.3 55.4 55.5 55.5 55.5 S5.5 55.5 55.5 55.6 55.b 55.6 55.7

E 2500 5.6 59. 55.C 55.7 55.8 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 56.0 56.1.aE 20001 46.2 54.8 55.8 56.2 56.5 56.6 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.8 66.8 5b.9

6.E 180C1 46.6 55.2 56.2 56.6 56.9 57.0 57.1 57.1 57.1 57.1 57.1 57.1 57.2 57.2 57.2 57.3

.E 15001 44.1 57.1 58.1 38.5 58.8 38.9 59.0 59.0 59.0 59.0 59.0 59.0 59.1 59.1 59.1 59.2

GE 12001 51.2 61.3 62.6 62.0 63.4 63.5 63.5 63.5 63.5 63.6 63.6 63.6 63.6 63.6 63.6 63.8

100 53.8 65.5 67.1 676 68.0 68.1 68.1 68.2 68.2 68.2 68.2 68.Z 68.2 68.2 68.3 66.b4GE 900 55.4 68.8 70.b 71.3 71.7 71.8 71.8 71.9 71.9 71.9 71.9 71.9 71.9 71.9 72.0 72.1

GE 80 56.8 71.5 73.7 74.5 75.2 75.3 75.4 75.4 75.4 75.5 75.5 75.5 75.5 75.5 75.6 75.7GE 7001 58.0 74.3 77.1 78.3 79.2 79.3 79.4 79.4 79.4 79.5 79.5 79.5 79.5 79.5 79.6 79.7C GE 6001 58.6 76.6 80.0 81.6 83.1 83.3 83. 83.5 63.5 83.:6 83.6 83.6 83.6 83.b 837 83.8

G 50 59.! 78.7 82.9 85.3 87.8 88.1 88.4 88.b 88.6 88.7 T 88.7 88.7 88.7 48.8 86.9GE 400 59.3 79.5 84.1 86.8 89.9 90. 4 91.4 91.9 9Z. 924 92.4 92.4 92.5 92.5 92.5 92.7

GE 3001 59.4 80.0 84.6 87.5 91.0 91.4 92.8 93.7 94.1 94.7 95.2 95.2 95.8 95.9 96.0 96.21GE 2001 59.5 80.2 85.0 87.7 91.2 91.6 93.2 94.0 94.6 95.4 96.2 96.3 97.6 98.1 98.3 96.7GE 1001 59.5 80.2 85.0 87.7 91.2 91.6 93.2 94.0 94.6 95.4 96.3 96.4 97.7 98.4 98.8 99.8

,r Cl 59.5 80.2 85.0 87.7 91.2 91.6 93.2 94.0 94.6 95.4 96.3 96.4 97.7 98.4 98.8 100.0

TOTAL NUMeER OF OBSERVATIONS: 4136


STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: SEP HOURSILST): 06C0-D8O

CE ILING ............ ......""" "'''''"VISISILITY IN STATUTE MILES

IN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE bE

FEET I 10 6 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 I 25.6 32.4 33.8 34.1 34.5 34.6 34.8 35.2 35.3 35.6 35.7 35.7 35.9 36.1 36.8 31.4

GE 2000CI 26.6 33.8 35.5 35.7 36.1 36.3 36.4 36.8 37.0 37.3 37.4 37.4 37.5 37.8 38.8 39.3GE 180001 27.0 34.3 36.0 36.3 36.7 36.8 37.0 37.4 37.5 37.b 38.0 38.0 38.1 38.4 39.3 39.9:iE 160001 27.1 34.9 36.6 36.8 37.3 37.4 37.5 38.0 38.1 38.4 38.5 38.5 38.6 38.9 39.9 4U.4E 140001 27.1 35.0 36.7 37.0 37.4 37.5 37.7 38.1 38.2 38.5 38.6 38.6 38.8 39.1 49.0 4U.6

( E 120001 27.8 35.7 37.5 3e.0 38.4 38.5 38.6 39.1 39.2 39.5 39.6 39.6 39.8 4G.0 41.0 41.6

CE lO0001 28.0 36.0 37.8 38.2 38.6 38.8 38.9 39.3 39.5 39.8 39.9 39.9 40.0 40.3 41.3 41.66E 9C001 23.3 36.3 38.1 38.5 38.9 39.1 39.2 39.6 39.8 4D.O 40.2 40.2 40.3 40.6 41.6 4Z.1CE 80001 21.9 37.3 39.1 35.5 39.9 4L.o 40.2 43.6 4O.7 41.3 41.1 41.1 41.3 43.6 42.5 43.GE 700j 29.4 37.7 39.5 3s.9 40.3 40.4 40.6 41.0 41.1 41.4 41.6 41.6 41.7 42.0 42.9 43.5GE 60001 29.8 38.2 40.0 4C.4 40.9 41.0 41.1 41.6 41.7 42.0 42.1 42.1 42.2 42.5 43.5 44.0

(;E 50001 31.3 39.3 41.3 41.8 42.2 42.4 42.5 42.9 43.1 43.4 43.5 43.5 43.6 43.9 44.9 4b.4

CE 4,001 31.2 40.2 42.1 42.7 43.1 43.2 43.4 43.8 43.9 44.2 44.3 44.3 44.5 44.7 45.7 46.3GE 40001 32.0 41.1 43.2 43.8 44.2 44.3 44.5 44.9 45.0 45.3 45.4 45.4 45.6 45.8 46.8 47.4GE 3510 32.5 42.0 44.0 4q.6 45.0 45.2 45.3 45.7 45.8 46.1 46.3 46.3 46.4 46.7 47.6 4b.2C-E 30001 34.5 43.9 46.G 46.5 47.0 47.1 47.2 47.6 47.8 48.1 48.2 48.2 48.3 48.6 49.6 5w.l

E 2M001 35.7 46.0 48.1 48.6 49.0 49.Z 49.3 49.7 49.9 50.1 50.3 50.3 50.4 50.7 51.7 52.2CE 20001 31.6 49.4 51.7 52.2 52.6 52.8 52.9 53.3 53.5 53.7 53.9 53.9 54.0 54.3 55.3 55.8

UE 18001 39.5 50.4 52.6 53.2 53.6 53.7 53.9 54.3 54.4 54.7 54.8 54.8 55.0 55.3 56.2 56.8GE 150CI 41.0 52.6 55.3 55.8 56.2 56.4 56.5 56.9 57.1 57.3 57.5 57.5 57.6 57.9 58.9 59.46E 120C1 42.1 55.7 58.4 59.0 59.6 59.7 59.8 60.2 60.4 60.7 60.8 60.8 60.9 61.2 62.2 62.7

51 10001 42.4 56.9 60.1 6L.8 61.4 61.5 61.6 62.0 62.Z 62.5 62.6 62.6 62.7 63.0 b4.O 64.5bc 901j 42.5 57.5 60.7 61.S 62.0 62.2 62.3 62.7 62.9 63.2 63.3 63.3 63.4 63.7 64.7 65.2

bE 8001 42.5 57.6 61.2 62.2 62.7 62.9 63.2 63.6 63.7 64.0 64.1 64.1 64.3 64.5 65.5 66.1

GE 7001 42.5 57.9 61.6 62.9 63.9 64.1 64.5 65.0 65.1 6S.4 65.5 65.5 65.7 65.9 66.9 67.5.E 6001 42.5 58.3 62.5 65.0 67.2 67.5 67.9 68.6 68.7 69.0 69.1 69.1 69.3 69.5 70.5 71.1

bC 5001 42.5 58.7 63.0 66.1 69.9 70.4 71.3 72.4 72.6 72.9 73.4 73.5 73.8 74.1 75.1 75.9IF 4001 42.5 58.7 63.7 67.3 72.0 72.3 75.6 77.3 77.8 78.5 79.5 79.6 80.1 R0.5 61.6 82.7

GE 3001 42.5 58.7 63.9 67.5 72.4 73.7 76.3 79.1 80.5 82.0 83.7 83.8 84.6 85.0 86.6 88.6

,E 2001 42.5 58.7 63.9 67.5 72.4 73.7 76.7 79.6 81.2 82.8 85.9 86.0 88.1 89.1 90.9 95.0

GE 1001 42.5 58.7 63.9 67.5 72.4 73.7 76.7 79.6 81.2 82.8 85.9 86.0 88.4 90.0 92.7 96.8

GE aI 42.5 58.7 63.9 67.5 72.4 73.7 76.7 79.6 81.2 82.8 85.9 85.0 88.4 90.0 92.7 100.0

TOTAL NUMP.LR OF OBSERVATIONS: 722

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VrRSUS VISIBILITYUSAFETAC FROM HOURLY OBSLRVATIONSAIR WEATHFR SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PEPIOD OF RECORD: 76-85MONTH: SEP HOURSCLSTI: 0900-1100

CEI[ING ....................... VISB1TT IN4 STTUTEMILES ......................

IN I E 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 3/9 5/8 112 5/16 1/4 0

NO CEIL 1 '2.5 51.5 53.2 53.3 59.2 54.2 59.3 59.3 59.3 54.3 54.3 59.3 59.3 54.3 54.3 59.3

E 200001 49.7 54.4 56.5 56.8 57.7 57.7 57.8 51.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8GE 1800 01 5.0 54.8 56.9 57.1 58.0 58.0 58.2 58.2 ,8.2 58.2 59.2 58.2 58.2 58.2 58.2 58.2GE 160001 45.0 54.8 56.9 57.1 58.0 58.0 58.2 58.2 68.2 58.2 59.2 58.2 58.2 58.2 58.2 5b.2bE 140001 95.4 55.5 57.5 57.9 58.8 58.8 58.9 58.9 58.9 58.9 59.9 58.9 58.9 58.9 58.9 56.9GE 120001 96.6 57.0 59.2 55.6 60.7 60.7 bl.0 61.0 61.0 61.0 62.0 61.0 61.0 61.0 61.0 61.0

,E 100001 47.5 58.3 60.5 6C.9 62.0 62.0 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3

GE 90001 47.7 58.6 60.7 61.1 62.3 62.3 62.5 62.5 62.5 62.5 62.5 62.5 62.5 62.5 o2.5 62.5GE 80001 49.0 60.1 62.3 62.7 63.8 63.8 69.1 69.1 69.1 6.I.1 64. 69.1 64.1 69.1 a9.l 64.1

GE 7000, 49.3 60.4 62.5 62.9 69.1 64.1 64.9 69.4 64.9 69.4 64.4 64.9 69.9 64.4 b4.9 64.4

GE 60001 99.7 61.0 63.2 6!.6 64.7 64.7 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0

UE 50001 50.3 61.9 64.1 69.5 65.6 65.6 65.9 65.9 65.9 65.9 65.9 65.9 65.9 65.9 65.9 65.9UE 4sO0 51.1 62.7 64.9 65.9 66.7 66.7 66.9 66.9 66.9 66.9 66.9 66.9 66.9 66.9 66.9 66.9GE 400C1 52.4 64.1 66.3 66.9 68.3 68.3 68.7 68.7 66.1 68.7 68.7 68.7 68.7 68.7 s8.7 66.7GE 35001 53.5 65.9 67.6 6e.2 69.6 69.6 70.0 70.0 70.0 70.0 70.0 70.0 70.0 70.0 70.0 7O

80 300C 55.3 67.2 69.4 70.0 71.9 71.9 71.8 71.8 71.8 71.8 71.8 71,8 71.8 71.8 11.8 71.8

GE 25001 57.4 69.6 71.8 72.5 73.9 73.9 74.3 79.3 79.3 79.3 79.3 79.3 79.3 74.3 74.3 74.3.E 20001 b5.7 71.0 73.2 73.9 75.3 75.3 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7 75.7GE 18001 58.8 71.2 73.4 79.0 75.4 75.4 75.8 75.8 75.8 75.8 75.8 75.8 75.8 75.8 75.8 75.8

GE 15001 bc.5 74.1 76.4 77.1 78.5 78.5 78.9 78.9 78.9 78.9 78.9 78.9 78.9 78.9 78.9 7.vGt 12001 61.3 76.1 79.3 8c.1 81.6 81.6 82.0 82.0 82.0 82.0 82.0 82.0 82.0 82.0 82.0 82.0

GE 100 61.9 77.5 81.2 82.2 83.9 83.9 89.3 89.3 89.3 89.3 89.3 89.3 89.3 84.3 s4.3 84.3GE 9001 b2.0 78.5 82.8 84.2 86.0 96.0 86.4 86.4 8b. 86.9 86.9 86.4 86.4 96.9 86.4 86.4

GE 8001 62.2 79.5 89.4 86.2 88.2 88.2 88.5 88.5 88.5 98.5 88.5 88.5 88.5 48.5 88.5 88.5tE 70C) 62.2 79.8 85.1 87.4 90.0 90.0 90.6 90.6 90.6 90.6 90.6 90.6 90.6 90.6 90.6 90.6E 6001 62.3 80.2 85.8 86.5 91.9 91.9 92.8 92.8 92.8 92.8 97.8 92.8 92.8 92.8 92.8 92.8

UE 50l 62.3 80.9 86.4 8S.4 93.7 93.6 95.2 95.9 95.9 96.C 96.0 96.0 96.0 96.0 96.0 96.0

GE 4001 62.3 80.6 86.6 90.0 99.7 95.0 96.8 97.7 97.8 98.1 98.2 98.2 98.2 98.2 98.2 98.2GE 3001 62.3 80.6 86.6 91.U 95.0 95.4 97.3 98.2 98.7 99.1 99.6 99.6 99.6 99.6 S9.6 99.6 46

.E 2001 62.3 80.6 86.6 90.0 95.0 95.4 97.3 98.2 98.7 99.1 99.7 99.7 99.7 99.? 99.9 99.9

GE 1001 62.3 80.6 86.6 9C.0 95.0 95.4 97.3 98.2 98.7 99.1 99.7 99.9 99.9 99.9 100.0 100.0

GE TI 62.3 80.6 86.6 9C.0 95.0 95.4 97.3 98.2 98.7 99.1 99.7 99.9 99.9 99.9 lJO.O 100.0

TOTAL NUMBLR OF OBSERVATIONS: 777

-. . .. . - -

L7BAL CLIMATOLOGY BRANCH PERCENTAGE FRESUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYjSAFTAC FROM HOURLY O2$LR2A/IONS

IR mEATHER SERVICE/MAC

S7ATION NUM9LR: 724916 STATION %AME: F1 ORD/FRITZSCHE AA CA PEQIOD OF RECORD: 76-85

MONTH: SEP NOUR$ILS7I: 1200-1400.. .. . . . . . . . . . . . . ............. . ............. . .....eoe.......... ...............0 ......e . • • . • • • •• .. . .

SIN GE GE GE c{ f GE GE GE 61 GE GE GE G E GE BE E GEFEET IC 6 s 4 i 2 1/2 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 U4€ O

''7 CEIL I 61.3 68.7 69.5 69.5 69.5 69.5 69.5 69.5 69.6 69.6 69.6 69.6 69.6 69.6 b9.6 69.6

F 200001 64.6 73.1 74.1 79.3 74.3 79.3 74.3 79.3 79.4 74.4 79.4 74.4 74.9 74.4 79.4 79.9,F 18t00 69.9 73.5 79.5 74.b 79.6 79.6 79.6 79.6 79.8 79.8 79.8 79 74.98 7.8 79.8 74.8

.E 160001 64.9 73.5 79.5 74.6 79.6 79.6 74.6 79.6 4.8 74.8 79.8 79 74..8 79.8 74.8

[t 1400C0 65.9 74.1 75.2 75. 3 75.3 75.3 75.3 75.3 75.4 75.9 75 75.4 75.4 7514 i5.4 7$4

E 120001 66.9 75.3 76.3 76.4 76.6 76.6 76. 6 76.b 76.7 76. 77 7 67 76. 76.7 76.7 76.7 76.7

ic ICO0DI 69 .1 77.1 78.1 7e . 78.9 78.9 78.4 78.9 78.5 78.5 78S 78.5 78.5 78.5 78.5 76.5' 9COO 68. 77.2 78.2 78.9 78.6 78.6 78.6 78.6 78.8 78.8 78.8 78.8 78.8 78.8 79.8 76.8AE 8OO 69.6 79.0 80.1 8L .2 80.9 80.4 80.9 8C.9 80.6 80.6 80.6 o.b6 80.6 80.6 80.6 8L.6AE 7001 70.3 79.7 80.7 80.9 81.1 81.1 81.1 81.0 81.2 81.2 81.2 81.2 81.2 81.2 81.2 81.2AE 60001 71.0 80.6 81.7 81.9 82.1 82.1 82.1 82.1 82.2 82.2 8Z.2 82.2 82.2 12.2 82.2 8c.2

5 00 71.2 0.8 82.0 82.1 82.4 82.4 82.4 82.4 82.5 2 .5 82.5 82.5 82.5 ;..5 82.5 8Z.5al .0950 70.8 81.5 82:b 82.8 83.0 83.0 83.0 8 3 83 93.81 83.1 83.1 83.1 83.1 83.1 93.1

'E 401 72.8 82.5 83.7 87.6 89.2 84.2 84.2 89.2 89.3 89.3 89.3 89.3 89.3 89.3 89.3 69.3A 3500 73.7 83.9 84.6 84.7 85.1 85.1 8s.1 85.1 85.2 85.2 85.2 85.2 85.2 85.2 8S.2 85.2.E 300C I 79.3 84.0 85.2 8E.3 85.7 85.7 85.7 85.7 85.8 85.8 85.8 85.8 85.8 85.8 85.8 85.8

CE 200o1 74.3 9.4 85.6 85.7 86.1 b6.1 86.1 86.1 86.2 86.2 86.2 86.2 86.2 4b.2 o6.2 8L.2

5A 20001 75.5 86.2 87.4 87.5 87.9 87.9 67.9 87.9 88.0 98.0 88.0 88.0 88.0 pa8. 1 8.0 88.2180r1 75.9 86.6 87.8 87.9 88.3 88.3 88.3 88.3 88.9 88.4 88.9 88.9 88.9 88.9 88.4 86.4

E 1SOCI 76.3 87.1 88.3 88.4 8q.8 88.8 88.8 88.8 88.9 88.9 88.9 88.9 88.9 98.9 88.9 88.9

r 120CI 77. 1 88.2 89.3 89.4 89.8 89.8 89.8 89.8 90.0 90.C 9n.0 90.0 90.0 92.0 9.0 1...0

I ICO01 77.6 90.1 91.5 91.b 92.0 92.0 92.0 92.0 92.1 92.1 97.1 92.1 92.1 92.1 97.1 92.1

Ac 9001 77.6 90.3 91.8 92.U 92.4 92.9 9z.9 92.4 92.5 92.5 97.5 92.5 92.5 92.5 12.5 9Z.5E 8001 77.9 91.6 93.3 93.6 99.0 99.0 994. 99.0 99.1 94.1 99.1 94.1 94.1 99.1 99.1 94.1Ac 70C1 77.9 91.6 93.p 99.6 95.2 95.2 95.2 95.49 95.5 95.5 9..5 95.5 95.5 95.5 9S.5 95.5

E 601 77.9 93.2 95.5 9t .5 97.6 97.6 97.6 97.7 97.8 97.8 97.8 97.8 97.8 97.8 97.8 97.8

E 5001 77.9 93.7 96.3 97.8 98.8 98.8 99.0 99.1 99.4 99.5 99.5 99.5 99.5 99.5 99.s 99.5'I 4001 77.9 93.7 96.4 98.1 99.1 99.1 99.2 99.4 99.6 99.7 99.7 99.7 99.7 99.7 99.7 99.7A[ 3001 77.9 93.7 96.9 98.1 99.1 99.1 99.5 99.6 99.9 I00.0 100.0 100.0 103.0 10U.3 ILO.0 101.0.E 2Uri 77.9 93.7 96.9 98.1 99.1 99.1 99.5 99.6 99.9 100.0 100.0 100.0 100.0 10(2.0 I.O. 100.1)GE 11o 77.9 93.7 96.9 98.1 99.1 99.1 99.5 99.6 99.9 100.0 100.0 100.0 100.0 100.0 )0.0 lo.0

AE 01 77.9 93.7 96.4 98.1 99.1 99.1 99.5 99.6 99.9 1o0.0 100.0 100.0 100.0 100.0 120.0 100.0


OBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENC'r OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETA C FROM HOURLY O6SERVATIONS

kIR WEATHER SERVICE/HAC

STATION NUHSLR: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORO: 76-85

MONTH: SEP HOURS(LSTI: 1500-2700

CL ILING VISIBILITY IN STATUTE MILESIN I :E GE GE GE GE GE GE GE 6E GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/4 518 1/2 5/16 1/4 a

.) CEIL I b.6 63.1 63.4 6.4 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6 63.6

.E OOG 63.9 67.5 67.8 61.8 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9 67.9,, 1800cl 65.1 68.7 69.0 65.U 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1

" 1600(1 65.1 68.7 69.0 6S.0 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1E 14NCOCI 65.7 69.3 69.6 69.6 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7 69.7.E IZUICI 66.1 69.7 70.0 7C.U 70.2 70.2 70.2 70.2 70.2 70.2 70.Z 7n.2 70.2 70.2 70.2 7U.2

Y 100001 6R.2 72.0 72.3 72.3 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4 72.4

A 90001 6.4 72.3 72.6 72.6 72.7 72.7 72.7 72.7 72.7 72.7 72.7 T2.7 72.7 72.7 72.7 72.7800CI 69.3 73.2 73.5 71.5 73.6 73.6 73.6 73.6 73.6 73.6 73.6 73.b 73.6 73.6 73.6 73.6

,E 700C b9.9 73.8 74.1 74.L 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2 74.2fI 6001 71.1 75.1 75.4 75.4 75.6 75.6 75.6 75.6 75.6 75.6 75.6 75.6 75.6 75.6 75.6 75.6

S O0 1 71.4 75.7 76.C 76.0 76.2 76.2 76.2 76.2 76.2 76.2 76.2 76.2 76.2 76.2 76.2 16.2F 4500) 71.7 76.0 76.3 76.3 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5

3EC 4V0l 72.3 76.6 77.1 71.1 77.2 77.2 77.2 77.2 77.2 77.2 77.2 77.2 77.2 77.2 77.2 77.2

GE 35001 72.7 77.1 77.5 77.5 77.7 77.7 77.7 77.1 77.7 77.7 77.7 77.7 77.7 77.7 77.7 71.76E 30001 73.1 78.1 78.6 7e.b 78.7 76.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 78.7 76.7

,E 25001 73.3 78.4 78.9 7C.9 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.0 79.3

uE 20011 73.6 78.9 79.3 79.3 79.5 79.5 79.5 79.5 79.5 79.5 79.5 79.5 79.5 79.5 79.5 79.5

F 1801l 73.6 78.9 79.5 7S.5 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6 79.6.E 15011 73.8 79.0 79.6 79.b 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8 79.8,E 121 14.7 40.2 80.8 8C.6 81.0 81.0 81.0 81.3 81.0 81.0 81.0 81.0 81.0 81.0 $1.0 61.0

1.t 10001 76.6 83.4 864.3 84.4 84.6 84.6 84.6 84.6 84.6 84.6 84.6 84.b 84.6 84.6 84.6 84.69001 77.4 85.0 86.1 86.2 86.4 86.4 86.4 86.5 86.5 86.5 86.5 86.5 86.S 86.5 36.5 86.5s. 8011 78.1 87.0 86.1 8E.2 88.3 88.3 88.3 88.5 88.5 88.5 89.5 88.5 88.S 88.S 88.5 86.5

E 701C 7S.4 88.8 90.4 9C.6 90.9 90.9 90.9 91.0 91.0 91.0 91.0 91.0 91.0 91.0 91.0 91.GCC 6001 78.7 91.0 93.4 91.6 93.9 93.9 93.9 94.0 94.0 94.0 94.0 94.0 94.0 94.0 99.0 94.0

E 5001 79.0 92.8 95.4 95.8 96.9 96.9 97.2 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3

UE 4001 79.0 93.1 95.7 96.1 97.3 97.3 97.8 98.1 98.2 98.4 98.4 98.4 98.4 98.4 98.4 9b.4GE 30cl 79.0 93.1 95.7 96.3 97.5 97.5 98.2 98.5 98.8 99.3 99.3 99.4 99.4 99.4 99.4 99.4

5E 20CI 79.1 93.1 95.8 96.4 97.6 97.6 98.5 98.8 99.1 99.6 99.6 99.7 i00.O IC.0 1 0.0 OG.0

GE 1001 79.0 93.1 95.8 96.4 97.6 97.6 98.5 98.8 99.1 99.6 99.6 99.7 100.0 1O0.0 1.0.0 I0.U

GE 0I 79.C 93.1 95.8 96.4 97.6 97.6 98.5 98.8 99.1 99.6 99.6 99.7 100.0 100.0 110.0 100.0


. . .. . ._. ._,.

' LOBAL CLIMATTLOGY BP NCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR EBATHER SERVICE/MAC

STATION NUMBER: 7Z4916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RLCORD: 76-BYMONTH: SEP HOURS(LSTI: i8i'-ZOCO

CE IL ING VISIBILITY IN STATUTE MILESIN SE GE GE G F GE rE GE GE GE GE rE GE 6E GE GE bE

FEET 10 6 5 a 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 a

NO CEIL 1 48.3 55.0 55.0 55.0 55.0 55.0 55.0 55.0 55.0 $5.0 55.0 55.0 55.0 S.a 55.0 55.j

61 200001 50.4 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 7.7 57.7 ST.7 57.7 57.7 57.7 57.7.E 180001 t1.0 58.3 58.3 58.3 58.3 58.3 58.3 58.3 $8.3 58.3 58.3 58.3 58.3 58.3 54.3 56.3GE 1600C1 51.0 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3 58.3 5F.3 54.3 58.3 58.3 59.3 56.3

.E 14C0G0 51.k 59.5 59.5 55 .5 59.5 59.5 59.5 59.5 59.5 59.5 5Q.5 59.5 59.5 59.5 59.5 59.5

SE 120001 512. 60.2 60.2 6L.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 60.2 6C.2

0E 10001C 54.9 63.7 63.7 61.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 .3.7 63.750 90001 549, 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7

GE 8001 55.4 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 64.5 61.5

GE 7001C 55.6 64.9 b4.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9 64.9u E 60001 56.0 6S.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3

.E 50001 56.4 65.8 65.0 65.8 65.8 65.8 66.0 66.0 66.0 66.0 66.0 66.0 66.0 6b.0 66.0 66.0

GE 45001 56.6 66.0 66.0 66.0 66.0 66.C 66.2 66.2 66.Z 66.2 66.2 66.2 66.2 66.2 66.2 66.2GE 40001 56.6 66.2 66.4 66.4 66.4 66.4 66.6 66.6 66.6 66.6 66.6 66.6 66.6 66.6 b6.6 66.6LE 3500 56.9 66.8 67.0 63.0 67.2 67.2 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4

SE 30001 57.9 68.9 69.1 69.1 69.3 69.3 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 (9.5 69.5

GE 25001 58.3 69.5 69.7 69.7 69.9 69.9 73.1 70.1 70.1 70.1 70.1 70.1 70.1 70.1 70.1 7U.1

GE 20001 59.3 70.7 70.8 7C.8 71.0 71.0 71.2 71.2 71.2 7-.2 71.2 71.2 71.2 71.2 71.2 71.2SE 18001 59.5 70.8 71.0 71.0 71.2 71.2 71.4 71.4 71.4 71.4 71.4 71.4 71.9 71.4 71.4 71.4

.E 1501 6G.8 72.6 72.6 72.8 73.0 73.0 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2SE 12001 bl.2 73.7 73.9 73.9 74.1 74.1 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3 74.3

GE 10001 51.8 75.3 75.5 75.5 75.7 75.7 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.9 75.96F 911[ 62.0 75.9 76.1 76.1 76.3 76.3 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4 76.4GE O0C b2.4 78.0 78.4 76.4 78.6 78.6 78.8 78.8 78.8 78.8 79.8 78.8 78.8 78.8 78.8 76.8

u E 70CI 63.3 81.9 82.4 82.4 82.8 82.8 83.0 83.0 13.0 83.0 83.0 83.0 83.0 93.0 83.0 E6.0GE 6001 63.7 84.0 85.1 85.3 86.1 86.1 86.3 86.3 86.1 86.3 86.3 86.3 86.3 86.3 86.3 86.S

CE 5001 63.9 84.7 86.3 87.1 88.0 88.0 88.4 88.4 88.4 88.4 8P.4 88.4 88.6 88.6 68.6 B.6GE 4U0I 63.9 85.5 88.2 84.b 91.1 91.1 91.5 91.5 91.5 91.5 91.5 91.5 91.7 91.7 91.7 91.1

GE 30'i 63.9 85.5 88.2 84.6 91.3 91.3 91.7 91.7 91.7 92.1 92.9 92.9 93.4 q3.4 93.4 93.4SE 200I 63.9 85.5 88.2 89.d 91.5 91.5 91.9 91.9 91.9 92.3 93.2 93.2 96.9 97.5 97.5 96.1GE 10l b3.9 85.5 88.2 89.a 91.5 91.5 92.1 92.1 92.1 92.5 93.4 93.4 97.1 07.7 98.6 IOC.u

6E 01 63.9 85.5 88.2 85.8 91.5 91.5 92.1 92.1 92.1 92.5 93.4 93.4 97.1 97.7 98.6 105.0


L.

CLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVA1IONS


STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF Ch PERIOD OF RECORD: 77-85MONTH: SEP HOURS(LST?: 2100-2300

CEILINGVIIIIYZSTTE LS

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GL bEFEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 U

%0 CEIL I 44.5 56.1 56.1 56.4 S7.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3 57.3

-E 200001 44.5 56.4 56.4 56.7 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6

bc 180001 45.1 57.0 57.0 57.3 58.2 56.2 58.2 58.2 S8.2 58.2 58.2 58.2 58.2 58.2 58.2 6.2,E 16COC| 45.1 51.0 5T.C 53.3 58.2 58.2 58.2 58.Z 58.2 58.2 58.2 58.2 58.2 S8.2 18.2 5b.26E 14r0C0 45.1 57.3 57.3 57.b 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5 58.5GE 120001 45.7 57.9 57.9 58.2 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1 59.1

GE 100001 48.4 60.5 60.5 6C.8 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7.E 9DCO( 4B.4 60.5 60.5 6C.8 63.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 61.7 b1.7 61.7

GE 80001 49.3 61.4 61.4 61.7 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 b2.6 62.6.E 70001 49.3 61.4 61.4 61.7 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 62.6 b2.b 62,.GE 60001 49.3 61.4 61.4 61.7 62.6 62.6 62.6 62.6 62.6 62,6 62.6 62.6 62.6 62.6 62.6 62.6

6E 5001 49.3 61.4 61.4 61.7 62.6 62.6 62.9 62.9 b2.9 63.2 63.2 63.2 63.2 63.2 61.2 63.2GE 4sr0 49.3 61.4 61.4 61.7 62.6 62.6 62.9 62.9 62.9 63.2 63.2 63.2 63.2 63.2 63.2 b3.2GE 40001 49.3 62.0 62.0 6Z.3 63.2 63.2 63.S 63.5 63.5 63.8 63.8 63.8 63.8 63.8 63.8 63.8

GE 35001 49.3 62.0 62.0 6i.3 63.2 63.2 63.5 63.5 63.5 63.8 63.8 63.8 63.8 63.8 63.8 63.8

SE 30001 49.9 63.2 63.2 63.6 64.4 64.4 64.7 64.7 64.7 65.0 65.0 65.0 65.0 65.0 65.0 65.U

GE 2SGl 50.7 64.4 64.4 64.7 65.6 65.6 65.9 65.9 65.9 66.2 66.2 66.2 66.2 66.2 66.2 66.2GE 20001 51.3 65.0 65.0 65.3 66.2 66.2 66.5 66.5 66.5 66.6 66.8 66.8 66.8 66.8 66.8 66.8GE 18001 61.3 65.U 65.0 65.3 66.2 bb.2 66.5 66.5 66.5 66.8 66.8 66.8 66.8 66.8 66.8 66.8

GE 15001 53.1 66.0 68.L 68.2 69.1 69.1 69.4 69.4 69.4 69.7 b9.7 69.7 69.7 69.7 69.7 69.T

GE 120C 53.1 70.U 70.0 7C.3 71.2 71.2 71.5 71.5 71.5 71.8 71.8 71.8 71.8 71.8 71.8 71.8

GE Ifoc0 5,! 71.2 71.6 71.8 73.0 73.0 73.3 73.3 73.3 73.6 73.6 73.6 73.6 73.6 73.6 73.6

GE 90C1 53.1 71.8 72.1 72.4 73.6 73.6 73.9 73.9 73.9 74.2 74.2 74.2 74.2 74.2 74.2 74.2GE 80(c 53.4 73.0 73.3 73.b 74.8 74.8 75.1 75.1 75.1 75.4 75.4 75.4 75.4 75.4 75.4 75.4

IE 7001 54.0 76.6 76.9 71.2 78.3 78.3 78.6 78.6 78.6 78.9 7.9 76.9 78.9 78.9 78.9 7b.9bE 6001 54.6 78.3 78.6 7e.9 80.4 80.4 80.7 80.7 8.7 81.0 81.0 81.0 81.0 81.0 81.0 81.0

GE 5001 54.9 80.1 80.7 81.3 82.8 82.8 83.1 83.1 83.1 4.0 84.0 84.0 84.0 84.0 84.0 84.0GE ,0 1 55.5 81.6 82.8 8s.8 87.5 87.5 87.8 88.1 88.1 89.9 89.9 89.9 89.9 89.9 89.9 89.9GE 30C1 55.8 81.9 83.7 86.9 89.9 89.9 90.2 90.8 90.8 92.6 92.6 92.6 92.6 92.6 92.6 9Z.6

GE 20CI 55.9 81.9 83.7 81.2 90.2 90.2 90.5 91.1 91.1 93.2 93.2 93.2 95.3 97.0 97.0 97.6I1 Ol 55.8 81.9 83.7 81.2 90.2 90.2 90.5 91.1 91.4 93.5 93.5 93.5 95.5 97.3 99.1 10G,0

GE Cl 55.8 81.9 83.7 87.2 90.2 90.2 90.5 91.1 91.4 93.5 93.5 93.5 95.5 97.3 99.1 C.0



STATION NUMBERz 724916 STATION NAME: FT ORD/FR1TZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: SEP HOURSILS;): ALL

CEILING VISIBILITY IN STATUTE MILESIN GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET 10 6 5 4 3 2 1/2 2 1 1/2 1 114 1 3/4 5/8 1/2 5/16 1/4 U

NO CEIL 1 47.3 54.3 55.1 55.2 55.6 55.6 55.7 55.8 55.8 55.9 55.9 55.9 55.9 56.0 56.1 56.2

GE 200CC 49.4 57.2 SB.2 58.4 58.8 58.8 58.8 SB.9 59.0 59.0 59.1 59.1 59.1 59.1 59.3 59.4

uE 180001 50.0 57.8 58.8 59.0 59.4 59.4 59.5 59.5 59.6 59.6 59.7 59.7 59.7 59.7 59.9 6L.0GE 1600ri 50.0 58.0 59.0 59.1 59.5 59.5 59.6 59.6 59.7 59.7 59.8 59.8 59.8 59.8 600 6L.1.E 140001 50.4 58.5 59.5 59.7 60.1 60.1 63.2 60.2 60.3 60.3 60.4 60.4 60.4 60.5 b0.6 b6.7.E 1200C 51.2 59.5 60.5 6C.? 61.2 61.2 61.3 61.3 61.4 61.5 61.5 61.5 61.5 61.6 61.7 61.8

GE 100001 57.7 61.Z 62.3 62.5 63.0 63.0 63.1 63.1 63.2 63.2 63.3 63.3 63.3 63.3 b.5 63.6GE 9C00 52.9 61.4 62.5 62.7 63.2 63.2 63.3 63.3 63.4 63.5 63.5 63.5 63.5 63.6 63.7 63.86E 80001 53.9 62.6 63.7 6!.9 64.4 64.4 64.5 64.6 64.6 64.7 64.7 64.7 64.7 64.8 65.0 65.1

UE 70001 54.3 63.1 64.1 64.3 64.8 64.8 64.9 65.0 65.0 65.1 65.1 65.1 65.1 65.2 bs.4 65.5UE 60001 54.8 63.6 64.8 65.1 65.5 65.6 65.6 65.7 65.8 65.8 65.9 65.9 65.9 65.9 b6.1 66b.2

GE 517001 5.2 64.4 65.5 65.7 66.2 66.2 66.4 66.5 66.5 66.6 66.6 66.6 66.6 66.7 b6.9 67.0t.E 45205 55.7 64.9 66.0 6t.3 66.8 66.8 67.0 67.0 67.1 67.2 67.2 67.2 67.2 67.3 67.5 67.bfE 40001 56.5 65.8 67.1 67.3 67.8 67.9 68.0 68.1 68.1 68.2 68.2 68.2 68.3 68.3 64.5 68.6GE 35001 57.1 66.6 67.7 66.0 68.6 68.6 68.8 68.9 68.9 69.0 69.0 69.0 69.1 69.1 b9.3 69.4GE 30001 53.3 66.0 69.2 65.5 70.1 70.1 70.2 70.3 70.4 70.5 70.5 70.5 70.5 70.6 70.7 7U.9

GE 25C01 59.1 69.2 70.4 7C.7 71.3 71.3 71.5 71.5 71.6 71.7 71.7 71.7 71.7 71.8 72.0 7 .1oE 2000| 611.4 70.8 72.0 72.3 72.9 72.9 93.1 73.2 73.2 ?3.3 73.3 73.3 73.4 73.4 73.6 73.76E 1800 60.7 71.1 72.4 72.7 73.2 73.3 73.4 73.5 73.6 73.6 73.7 73.7 73.7 73.7 73.9 74.0.E 15001 7bl 72.8 74.1 74.4 75.0 75.0 75.2 75.3 75.3 75.4 75.4 75.4 75.5 75.5 75.7 7b.8GE 17001 62.5 74.5 76.1 76.4 77.0 77.1 77.2 77.3 77.4 77.4 77.5 77.5 77.5 77.5 77.7 77.8

GE 103 63.2 76.3 78.2 7E.b 79.3 79.3 79.5 79.6 79.6 79.7 7q.7 79.7 79.8 79.8 sn.0 8L.1GE 9001 63.4 77.1 79.1 79.7 80.4 80.4 80.6 80.7 80.7 9O.8 80.8 80.8 80.9 80.9 81.1 41.2GE 8001 63.7 78.4 80.6 81.3 82.0 82.1 82.3 82.4 82.4 82.5 82.5 82.5 82.5 S2.6 82.8 82.9GE 70T1 63.9 79.6 82.3 83.2 84.2 84.3 84.5 84.7 84.7 94.8 84.8 84.8 84.9 84.9 85.1 85.2GE 6001 64.1 80.9 84.0 85.3 86.9 B6.9 87.3 87.4 87.5 87.6 87.6 87.6 87.6 87.7 87.9 ea..

GE SOCI 64.2 81.8 85.0 86.8 89.0 89.2 89.8 90.2 90.3 90.4 99.5 90.6 90.7 90.7 90.9 91.0GE 4005 64.3 82.1 85.7 88.0 90.6 9U.9 91.9 92.5 92.7 93.1 91.3 93.4 93.5 93.5 93.8 94.JGE 3001 64.3 BZ.1 85.8 88.1 91.0 91.3 92.5 93.4 93.8 94.5 95.1 95. 95.3 9S.4 95.7 96.1GE 2001 64.3 82.1 85.9 88.2 91.1 91.4 92.7 93.6 94.1 94.8 95.7 95.7 96.8 97.3 97.6 98.6GE 1001 64.3 82.1 85.9 88.2 91.1 91.4 92.7 93.6 94.1 94.9 95. 95.8 97.0 97.5 98.3 99.8

GE CI 64.3 82.1 85.9 8a.2 91.1 91.4 92.7 93.6 94.1 94.9 95.7 95.9 97.0 97.5 98.3 100.0

TOTAL NUMPER OF OBSERVATIONS: !798


STATION NUMBLR: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: OCT HOURSILSTI: 0600-080

• ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ . M'IL*E'S'*.. o~o~~e ee t ol e o~. ... * o¢ e t oo , ol o t e o t e ( (... ** .*o.. . e.e** *- *** - - ****-ooCEILING VISIBILITY IN STAIUTE MILES

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 1/2 1 1/4 1 3/4 5/ 1/2 5/16 1/4 u... ... . °.. . .. ...°. .. ... ° ° . .... . . .. .. .. . . . . . ... . . . . ..o ... ,.. .. . . . . . . ..... . . ° ., .°... .. .

NO CEIL 1 35.4 44.1 45.0 45.3 45.7 45.7 '45.8 46.0 46.0 46.b 47.0 47.U 47.6 47.8 48.0 49.6

(E 200001 36.4 45.7 46.6 46.9 47.6 47.6 47.7 47.8 47.8 48.5 49.1 49.1 49.6 49.9 50.1 51.8

GE 180001 36.7 46.0 46.9 47.2 47.8 47.8 48.0 48.1 48.1 48.8 49.3 49.3 49.9 50.1 50.4 52.UGE 160001 36.7 46.U 46.9 41.2 47.8 47.8 48.0 48.1 48.1 48.8 49.3 49.3 49.9 50.1 50.4 S.0

GE 140001 36.8 46.1 47.2 47.4 48.1 48.1 48.2 48.4 48.4 49.1 49.6 49.6 50.1 50.4 50.7 52.?GE 1200C0 37.6 47.2 48.2 48.5 49.2 49.2 49.3 49.5 49.5 50.1 50.7 50.7 51.2 51.5 11.8 53.8

GE 100001 3A.5 48.1 49.2 49.5 50.3 50.3 50.4 50.5 50.5 51.2 51.8 51.8 SZ.3 52.6 52.8 54.9

GE 90001 3R.5 48.1 49.2 49.5 50.3 50.3 50.4 50.5 50.5 51.2 51.8 51.8 52.3 52.6 52.8 S4.9

GF 8001C 38.7 48.2 49.3 49.b 50.4 50.4 50.5 50.7 50.7 51.3 51.9 51.9 52.4 52.7 53.0 55.0

GE 70001 38.8 48.4 49.5 4S.7 50.5 50.5 50.7 50.8 50.8 51.5 52.0 52.0 52.6 52.8 53.1 55.1.E 6tUO0l 39.2 48.8 49.9 50.1 50.9 50.9 51.1 51.2 51.2 51.9 52.4 52.4 53.0 53.2 53.5 55.5

6E 50001 40.2 49.7 50.9 51.2 52.0 52.0 52.3 52.4 52.4 53.1 53.6 53.6 54.2 54.4 54.7 56.7

uE 45001 40.4 50.1 51.3 51.6 52.4 52.4 52.7 52.8 52.8 53.5 54.0 54.0 54.6 54.9 55.1 57.15E 400c1 40.8 50.5 51.8 52.0 52.8 52.8 53.1 53.2 53.2 53.9 54.4 54.4 55.0 55.3 55.5 57.5UE 35001 43.8 50.8 52.C 52.3 53.1 53.1 53.4 53.5 53.5 54.2 54.7 54.7 55.3 55.5 55.8 57.8

GE 300C1 41.2 51.2 52.7 53.1 53.9 53.9 54.2 54.3 54.3 55.0 5s.5 55.5 56.1 56.3 56.6 56.6

GE 2SOC 42.6 53.1 54.7 55.3 56.1 56.1 56.3 56.5 56.5 57.1 57.8 57.8 58.4 58.6 58.9 6L.9GE 20001 43.1 54.3 56.3 56.9 57.7 57.7 58.1 58.2 58.2 58.9 59.6 59.6 60.1 60.4 o0.6 62.7GE 18001 43.4 54.9 56.9 51.4 58.2 58.2 58.6 58.8 58.8 59.4 6n.1 60.1 60.6 60.9 bl.2 63.2GE 15001 44.3 56.7 58.8 59.4 60.2 6U.2 60.6 60.8 60.8 61.6 62.3 62.3 62.8 63.1 b3.3 65.4GE 12001 44.3 58.6 61.5 62.5 63.5 63.5 63.9 64.0 64.0 64.8 65.5 65.5 66.0 66.3 66.6 66.6

bE IC001 44.5 59.6 62.5 62.7 64.7 64.7 65.1 65.2 65.2 66.0 66.7 66.8 67.5 67.8 68.1 70.1GE 90C1 44.6 60.6 64.7 66.0 67.1 67.1 67.5 67.7 67.7 68.5 69.1 69.3 69.9 70.2 70.5 7,.5

GE 8001 44.6 60.8 65.2 66.7 68.1 68.1 68.5 68.6 68.6 69.4 70.2 70.4 71.0 71.3 71.6 73.6GE 7001 44.6 60.8 65.4 61.0 68.3 68.3 68.7 69.1 69.3 70.1 T.9 71.0 71.7 72.0 72.2 74.3GE 6001 44.6 60.8 65.5 67.7 69.3 69.3 69.9 70.5 70.8 72.0 72.8 72.9 73.7 74.0 74.3 76.3

GE 5001 44.6 60.9 65.6 68.3 70.1 70.1 70.8 71.7 72.2 73.7 74.5 74.7 75.9 76.3 76.5 7.bGE 4011 44.6 61.1 65.9 68.6 7!.6 70.6 71.7 72.8 73.5 75.6 76.8 77.0 78.3 78.7 79.0 81.0GE 3001 44.6 61.2 66.0 69.1 71.4 71.4 72.6 73.9 74.7 77.1 79.4 79.8 82.3 82.9 63.2 86.5

GE 2001 44.6 61.2 66.0 6S.1 71.6 71.6 72.8 74.4 75.2 77.8 81.3 80.9 84.4 85.3 85.8 91.6

GE 1001 44.6 61.2 66.L 64.1 71.6 71.6 72.8 74.4 75.2 77.8 80.3 80.9 84.9 8b.0 86.9 97.3

GE nj 44.6 61.2 66.C 69.1 71.6 71.6 72.8 74.4 75.2 77.8 80.3 80.9 84.9 86.1 87.1 100.0

TOTAL NUMFER OF OBSERVATIONS: 742

LOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQiUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY,SAFE7AC FROM HOURLY OBSLRVATIONS

AIR oEATHER SERVICE.MAC

STATION NUMBER: 724916 STATION NAME: FT OR0/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: OCT HOURS(LSTI: 09UP-11GO

CEILING VISIBILITY IN STATUTE MILESIN I GL GE GE EE GE GE GE GE GE GE GE GE GE GE GL bE

FEET I ic 6 5 4 3 2 1/2 2 1 1/2 1 114 1 3/4 5/8 112 S/16 1/4

NO CEIL I 47.1 54.8 57.9 6C.2 62.6 62.8 62.9 63.2 63.2 63.6 63.6 63.6 63.7 63.7 63.7 63.8

uE 230001 50.3 $8.8 62.C 64.3 66.9 67.4 67.5 67.9 67.9 68.2 6..2 68.2 68.3 68.3 69.3 66.5UE 1800fl 50.6 59.1 62.3 64.7 67.2 67.7 67.9 68.2 68.2 68.6 68.6 68.6 65.7 68.7 b8.7 6b.6..E ibO0Ci 50.6 59.1 62.3 64.7 67.2 67.7 67.9 68.2 68.2 68.6 68.6 68.6 68.7 68.7 68.7 6b.8(,E 140001 53.7 59.3 62.S 64.8 67.4 67.9 68.0 68.3 68.3 68.7 68.7 6A.7 68.8 68.8 L8.8 69,.uE 120001 Sl. 60.2 63.4 65.8 68.3 68.8 69.0 69.3 69.3 69.7 69.7 69.7 69.8 69.8 69.8 69.9

tGE 1000C1 52.0 60.7 64.0 66.6 69.2 69.7 b9.8 70.2 70.2 70.6 71.6 70.6 73.7 70.7 71.7 7U.8GE 91011 52.3 61.0 64.3 66.9 69.4 69.9 70.1 70.4 70.4 70.8 70.8 70.8 70.9 70.9 71.9 71.?GE 8COOl 57.F 61.5 64.8 67.4 69.9 7C.4 70.6 70.9 70.9 71.3 71.3 71.3 71.4 71.4 71.4 71.,bE 7000( 53.1 62.0 65.3 67.9 70.4 70.9 73.0 71.4 71.4 71.8 71.8 71.8 71.9 71.9 71.9 7i .0UE 6000( 53.4 62.2 65.5 68-1 70.7 71.2 71.3 71.7 71.7 72.0 72.0 72.0 72.1 72.1 72.1 72.3

GE 5o0 54.1 63.1 66.5 69.1 71.7 72.1 72.3 72.6 72.6 73.0 73.0 73.0 73.1 73.1 73.1 73.3GE 45001 55.2 64.Z 67.6 7L.2 72.8 73.3 73.4 73.7 73.7 74.1 74.1 74.1 74.2 74.2 74.2 74.1GE 40001 56.1 65.2 68.6 71.2 73.7 74.2 74.4 74.7 74.7 75.1 7 .1 75.1 75.2 75.2 75.2 75.3bE 35001 56.1 65.3 68.7 71.3 73.9 74.4 74.6 75.0 75.0 76.3 75.3 75.3 75.5 75.5 75.5 75.6,E 30ocI 56.7 66.5 69.9 72.5 75.1 75.6 75.8 76.2 76.2 76.6 76.6 76.6 76.7 76.7 76.7 76.8

GE 25001 57.3 67.6 71.0 73.6 76.2 76.7 76.9 77.3 77.3 77.7 77.7 77.7 77.8 77.8 77.8 77.9GE 2r011 57.7 68.5 71.9 74.5 77.1 77.5 77.8 78.2 78.2 78.5 78.5 78.5 78.7 78.7 78.7 76.8GE 18001 57.9 68.7 72.1 74.7 77.3 77.8 78.0 78.4 78.4 78.8 788 78.8 78.9 78.9 78.9 79.0GE 15001 58.3 70.4 74.2 76.8 79.4 79.9 80.1 80.5 80.5 80.9 83.9 80.9 81.0 81.0 d1.O 81.1GE 120CI 59.5 72.3 76.7 75.8 82.5 82.9 83.2 83.6 83.6 83.9 83.9 83.9 84.0 R4.0 84.0 84.2

GE ICON 5.5 72.6 77.8 81.0 83.9 84.4 84.7 85.0 865.0 85.4 8-.4 85.4 86.5 45.5 8 .5 85.6GE 9orl 58.5 73.0 78.5 81.8 84.9 85.4 85.9 86.3 86.3 86.6 86.6 86.6 86.7 86.7 86.7 86.9GE 8001 59.5 73.1 78.8 82.1 85.3 85.9 86.4 86.7 8b.7 87.2 87.2 87.2 87.4 87.4 87.4 87.5GE 70r) 5%.5 73.3 79.1 82.8 86.3 86.9 87.6 88.1 88.1 88.6 88.6 88.6 88.7 88.7 68.7 86.8GE 60C1 58.5 73.7 79.6 83.b 87.1 87.9 89.0 90.1 90.1 90.7 90.7 90.7 90.8 90.8 93.8 9L.9

GE 5001 5R.5 74.0 80.0 83.9 88.3 89.1 90.7 92.0 92.6 93.5 93.6 93.6 93.7 93.? 93.7 93.9GE 40cl 58.5 74.1 80.0 84.2 88.8 89.6 91.4 93.0 94.8 96.1 96.6 96.7 97.1 97.1 97.2 97.%GE 3001 58.5 74.0 80.C 84.2 88.8 89.7 91.7 93.3 95.1 96.4 97.1 97.2 98.0 98.0 98.2 96.5GE 2001 59.5 74.0 80.0 84.2 88.8 89.7 91.7 93.3 96.1 96.6 97.4 97.f, 98.4 98.5 98.7 96.1GE 1001 58.5 74.0 80.0 84.2 88.8 89.7 91.7 93.3 95.1 96.6 97.4 97.5 98.4 98.8 98.9 9.8

(I ol 58.5 74.0 80.( 84.2 88.8 89.7 91.7 93.3 95.1 96.6 97.4 97.5 98.4 98.8 99.0 100.0


-OBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYAFETAC FROM HOURLY OBSERVATIONS

IR WFA7H[R SERVICE/MAC

TATION NUMPjR: 724916 'TAIION %AME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: OCT HOURS(LST): 1200-1400

*... .. . ..°. . . ... ... . °-. .. . .. . .. .... .... . °. . . . . . . . .. . . . . . .............t.. .. ... .-.. ..

tILING VISIBILITY IN STATUTE MILESIN L .L GE GE Sc GE 6E GE GE GE GE GE GE GE GE GE 6t

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 I 1/4 1 3/4 5/8 112 5/16 1/4 1

0 CEIL 1 58.1 65.7 7C.0 71.2 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7

E2£CCCCI 64.3 72.8 77.1 76.. 79.0 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1 79.1O1800l 64.7 73.6 77.9 7r.3 79.8 80.0 80.0 80.0 8U.0 80.0 80.0 80.0 80.0 80.0 60.0 8.

160001 64.7 73.6 77.9 7S.3 79.8 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0E 14001 65.4 74.3 78.6 80.1 80.6 80.7 80.7 80.7 83.7 80.7 80.7 80.7 80.7 80.7 80.7 83.7- 1200!' 65.9 74.7 79.0 8C.4 80.9 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1 81.1

.E 100001 67.5 76.5 80.9 82.4 82.9 83.0 83.3 83.0 83.0 R3.0 83.0 83.0 83.0 83.0 83.0 83.0,E 90001 67.5 76.5 80.9 82.4 82.9 83.0 83.0 83.0 83.0 83.U 83.0 83.0 83.0 83.0 63.0 83.3,E 8000 67.7 76.6 81.2 8Z.7 83.1 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3.E 70003 67.8 76.8 81.3 82.8 83.3 83.4 83.4 83.4 83.4 83.4 83.4 83.4 83.4 83.4 .3.4 83.4,E 600V1 67.9 76.9 81.4 82.9 83.4 83.5 83.S 83.5 83.5 83.5 83.5 83.5 83.5 83.5 83.5 83.5

E 5OON 68.3 77.4 81.9 83.4 83.9 84.0 84.0 84.0 84.0 84.0 84.0 84.0 84.0 84.0 84.0 84.jE 45003 68.5 77.6 82.2 8!.6 84.1 84.3 84.3 84.3 84.3 84.3 64.3 84.3 84.3 84.3 84.3 84.3E 4C001 70.0 79.1 83.6 85.1 85.6 85.7 85.7 85.9 85.9 85.9 85.9 85.9 85.9 85.9 85.9 85.91 35.LC 7J. 2 79.7 84.3 8E.7 86.2 86.3 86.3 86.5 86.5 86.5 86.5 86.5 86.5 86.5 86.5 86.51 30001 71.2 80.9 85.5 83.0 87.5 87.6 87.6 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7

E 2 5001 1.3 81.3 85.9 87.3 87.8 87.9 88.1 88.2 88.2 88.2 88.2 88.2 88.2 88.2 88.2 86.2E 20001 71.6 81.8 86.3 81.8 88.3 88.4 88.6 88.7 88.7 88.7 88.7 88.7 88.7 88.7 88.7 85.7E 1800 72.0 82.3 86.8 88.3 88.8 88.9 89.1 89.2 89.2 89.2 89.2 89.2 89.2 89.2 89.2 89.23F 15OCI 72.6 83.6 88.2 8s.? 90.2 90.3 90.4 90.5 90.5 90.5 90.5 90.5 90.5 90.5 90.5 9I.A 120C 72.8 84.3 88.9 9C.4 91.0 91.1 91.3 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4 91.4

O 10003 73.4 85.6 90.4 91.9 92.5 92.6 92.7 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9 9 .9IE 9003 73.6 85.7 90.7 92.1 92.7 92.9 93.0 93.1 93.1 93.1 93.1 93.1 93.1 93.1 93.1 93.1E 8003 73.6 85.7 91.0 9 26 93.2 93.4 93.5 93.6 93.6 93.6 93.6 93.6 93.6 Q3.6 93.6 93.6

E 70CI 73.6 8S.9 91.3 9 .3 94.2 94.3 94.6 94.7 94.8 94.8 94.8 94.8 94.8 94.8 94.8 94.8

.' 6UCI 73.6 86.2 91.6 9..7 9S.3 95.6 96.1 96.4 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7

E 5603 73.7 86.3 92.C 94.3 96.6 96.6 97.5 98.0 98.3 98.3 98.3 98.3 98.3 98.3 99.3 96.3A 4003 73.7 86.3 92.1 94.5 96.9 97.2 98.2 98.b 99.0 99.1 99.3 99.3 99.3 99.3 99.3 99.3

, 3003 73.7 86.3 92.1 94.5 97.0 97.3 98.3 99.0 99.9 99.6 99.8 99.8 99.8 99.8 99.8 99.8, 2U03 71.7 86.3 92.1 94.5 97.0 97.3 98.3 99.0 99.4 99.6 99.8 99.8 99.9 99.9 99.9 99.9

.0 1073 7.7 86.3 92.1 94.5 97.L 97.3 98.3 99.0 99.9 9.6 99.8 99.8 100.0 100.0 I0.0 IC.O

,E 0 73.7 86.3 92.1 94.5 97.0 97.3 98.3 99.0 99.4 99.6 99.8 99.8 100.0 100.0 IGO.0 10.0

TOTAL NUMBER OF OSERVATIONS: 913

)BAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CrILING VFRSUS VISIBILITYkFETAC FROM HOURLY OBSERVATIONS? WEATHER SERVICE/MAC

kIION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: OCT HOURSILS7): 1510-1700

ILING VISIBILITY IN STATUTE MILESIN I '.1 GE GE CE GE GE GE GE GE GE GE GE GE GE GE bErET 10 b 4 4 3 2 1/2 2 1 1/2 1 1/4 I 3/4 5/8 1/2 5/16 1/4 0

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

CEIL 1 55.2 59.5 60.8 6C .8 61.1 61.1 61.1 61.1 61.1 61.2 61.2 61.2 61.2 61.2 ui .2 61.1

20OCI o3.4 68.7 70.0 7C.4 70.7 7.7 70.7 70.7 7J.7 70.8 70.8 70.8 70.8 70.8 70.8 7L.818OCI b3.6 68.9 70.2 7C.7 71.0 71.0 71.0 71.0 71.0 71.1 71.1 71.1 71.1 71.1 71.1 71.116OOCI 63.6 68.9 70.2 7C.7 71.0 71.0 71.0 71.0 71.0 71.1 71.1 71.1 71.1 71.1 71.1 7i.1I 400C 64.7 70.1 71.4 71.8 72.1 72.1 72.1 72.1 72.1 72.3 72.3 72.3 72.3 72.3 72.3 7,.31200CI 66.2 71.7 73.0 72.4 73.7 73.7 73.7 73.7 73.7 73.9 73.9 73.9 73.9 73.9 73.9 73.9

1ODOCI 69.2 73.7 75.C 75.5 75.8 75.8 75.8 75.8 75.8 75.9 75.9 75.9 75.9 75.9 75.9 75.9900CI b3.2 73.7 75.0 75.5 7S.8 75.8 75.8 75.8 75.8 75.9 75.9 75.9 75.9 75.9 75.9 75.980001 69.8 74.3 75.6 76.1 76.3 76.3 76.3 76.3 76.3 76.5 76.5 76.5 76.5 76.S 76.5 76.5700CI 69.1 74.6 75.9 7r.3 76.6 76.6 76.6 76.6 76.6 76.8 76.8 76.8 76.8 76.8 76.8 76.6n00 .9.1 74.6 75.9 76.3 76.6 76.6 76.6 76.6 76.6 76.8 76.8 76.8 76.8 76.8 76.8 76.8

50001 69.7 75.2 76.5 76.9 77.5 77.5 77.5 77.5 77.5 77.6 77.6 77.6 77.6 77.6 77.6 77.645001 61.8 75.3 76.6 77.1 77.6 77.6 77.6 77.6 77.6 77.8 77.8 77.8 77.8 77.8 77.8 77.84CrO0 70.7 76.3 77.6 78.1 78.7 78.7 78.7 78.7 78.7 78.8 78.8 78.8 78.8 78.8 78.8 78.8 q*35U01 71.4 77.2 78.5 75.0 7, .5 79.5 79.5 79.5 79.5 79.7 79.7 79.7 79.7 79.7 79.7 79.730001 71.7 77.8 79.1 79.5 80.1 80.1 80.1 80.1 80.1 80.3 80.3 80.3 80.3 80.3 80.3 8L.3

250C1 72.4 78.5 79.8 8E.3 80.8 81.8 80.8 80.8 80.8 P1.0 61.0 81.0 81.0 R1.O 81.0 81.u2oC2I 73.0 79.1 80.4 81.8 81.4 81.4 81.4 81.4 81.8 81.6 81.6 81.6 81.6 81.b 81.6 81.6180li 73.1 79.2 80.6 81.3 81.6 81.6 81.6 81.6 81.6 81.7 81.7 81.7 81.7 81.7 61.7 81.715U'l 74.0 80.6 81.9 82.3 82.9 82.9 82.9 82.9 82.9 83.0 83.0 83.0 83.0 83.0 63.0 e3.012GG1 74.3 8L.0 82.3 82.7 83.3 83.3 83.3 83.3 83.3 83.5 83.5 83.5 83.5 83.5 83.5 63.S

IOCni 75.5 82.1 83.5 83.9 84.5 84.5 84.5 84.5 84.5 94.6 89.6 84.6 84.6 84.6 b4.6 84.b9001 75.6 83.5 85.1 81.5 86.1 86.1 86.1 86.1 86.1 86.2 86.2 86.2 86.2 86.2 86.2 K6.z8001 76.1 84.3 86.1 86.9 87.8 87.8 87.8 87.8 87.8 88.0 88.0 88.0 88.0 Ro.0 88.0 96.17C01 76.1 85.1 87.2 88.1 89.4 89.4 89.4 89.4 89.4 89.6 89.6 89.6 89.6 89.6 89.6 69.66001 76.5 86.3 88.4 89.4 90.7 90.7 90.7 91.u 91.0 91.1 91.1 91.1 91.1 91.1 91.1 91.1

5001 76.6 86.8 89.6 9c.9 92.7 92.7 92.9 93.3 93.3 93.6 93.6 93.6 93.6 93.6 93.6 93.64001 76.9 87.5 90.4 92.u 94.6 94.6 95.1 95.9 95.9 96.7 96.8 96.8 97.1 97.1 97.1 97.13001 76.9 87.5 90.4 92.0 94.8 94.8 95.4 96.4 96.4 97.7 98.4 98.4 98.8 99.1 99.1 94 .12001 76.9 87.5 9C.4 92.U 94.8 94.b 95.4 96.4 9b.4 97.7 98.4 98.4 99.1 99.6 99.9 99.91001 76.9 87.5 90.4 9 .0 94.8 94.8 95.4 96.4 96.4 97.7 98.4 98.4 99.1 99.6 1Co.0 10C.0

'l 76.9 87.5 90.4 92.0 94.8 94.8 95.4 96.4 96.4 97.7 98.4 98.4 99.1 99.6 1O.0 10.0.....................................................................................................................................

JA1 NUMBER OF O8SERVATIONS: 689

CLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY.SAFETAC FROM HOURLY 08SERVAIIONSAIR WEATHER SERVICE/MAC

STATION NUMREP: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: OCT HOURS(LST : I8LC-20C0

IN I GE GE G C EI GE GE GE GE GE GE GL GL GE E GE GE

FEET I 10 6 4 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 I 47.8 57.1 57.3 5.3 57.3 57.5 57.9 57.9 57.9 57.9 58.1 58.1 58.1 5.1 58.1 56.1

.E 20000I S1.4 60.7 61.3 61.5 61.5 61.7 62.2 62.2 62.2 62.2 67.4 62.4 62.4 62.4 b2.4 62.4GE 180001 51.8 61.3 61.9 62.0 62.0 62.2 62.8 62.8 62.8 62.8 63.0 63.0 63.0 63.0 63.0 6-.ibE 16 OCI 51.8 61.3 61.9 62.0 62.0 62.2 62.8 62.8 62.8 62.8 63.0 63.0 63.0 63.0 63.0 63.JGE 14CCCI 52.8 62.2 62.8 63.- 63.C 63.2 63.8 63.8 63.8 63.8 63.9 63.9 63.9 63.9 63.9 63.9bE 12001 53.3 63.4 63.9 64.1 64.1 64.3 64.9 64.9 64.9 64.9 65.1 65.1 65.1 65.1 L-.1 bb.1

.E OrOC '4.6 65.1 65.7 65.8 65.8 66.0 66.6 66.6 66.6 66.6 66.8 66.8 66.8 66.8 66.8 66.6GE 9010 54.8 65.3 65.8 66.E 66.0 66.2 66.8 66.8 66.8 66.8 67.0 67.0 67.0 67.0 o7.0 t7.LGE 8C001 56.0 66.4 67.0 61.2 67.2 67.4 67.9 67.9 67.9 67.9 68.1 68.1 68 61 68.1 68.1 69.1GE 700C1 56.2 66.6 67.2 67.4 67.4 67.6 68.1 68.1 68.1 68.1 69.3 68.3 68.3 68.3 .8.3 6..3

GE b000 56.2 66.6 67.2 61.4 67.4 67.6 68.1 68.1 68.1 68.1 68.3 68.3 68.3 68.3 b8.3 6b.3

uE 500CI .6.5 67.0 67.6 61.7 67.7 67.9 68.5 68.5 68.5 68.5 68.7 68.7 68.7 68.7 68.7 69.7GE 4500 6.65 67.0 67.6 67.7 67.7 67.9 68.5 68.5 66.6 68.5 69.7 68.7 68.7 68.7 68.7 66.7fE 40001 57.3 68.3 68.9 69.1 69.1 69.3 69.8 69.8 69.8 69.8 70.0 70.0 70.0 70.0 10.0 70.0GE 3500 57.3 68.3 68.9 6S.1 69.1 69.3 69.8 69.8 69.8 69.8 7O.0 70.0 70.0 70.0 73.0 7L.0

GE 30001 67.5 68.7 69.3 6S.4 69.4 69.6 70.2 70.2 70.2 70.2 70.4 70.4 70.4 70.4 70.4 7. .4

GE 2 5 u 5.4 69.6 70.2 70.4 70.4 70.6 71.2 71.2 71.2 71.2 71.3 71.3 71.3 71.3 71.3 71.3GE 200P1 $9.4 70.6 71.2 71.3 71.3 71.6 72.1 72.1 72.1 72.1 72.3 72.3 72.3 72.3 72.3 7'. 3GE 180c0 69.4 71.0 71.5 71.7 71.7 71.9 72.5 72.5 72.5 72.5 72.7 72.7 72,7 72.7 72.7 72.7GE 15001 60.5 73.1 73.6 73.8 73.8 74.0 74.6 74.6 74.6 74 6 74.8 74.8 74.8 74.8 74.8 74 .8E[ 12001 61.1 74.2 74.8 75.u 75.C 75.1 75.7 75.7 75.7 75.7 7,.9 7S.9 75.9 75.9 79.9 75.9

.E IC0i b2 .4 75.5 76.3 76.5 76.5 76.7 77.2 77.2 77.2 77.2 77.4 77.4 77.4 77.4 77.4 77.4

GE 900i 62.6 76.7 77.6 71.8 77.8 78.0 78.6 78.6 78.6 78.6 78.7 78.7 78.7 7o.7 7.7 79.1bE 80J) 63.- 78.7 80.3 8 .6 80.5 80Ib 81.2 81.2 81.2 81.2 81.4 81.4 81.4 91.4 .1.4 81.4GE 7001 63.2 90.8 62.5 8Z.7 82.7 82.9 83.6 83.5 83.5 83.5 83.7 83.7 83.7 83.7 07.7 63.7

GE 6001 63.4 91.8 84.6 86.0 85.0 85.2 86.0 86.0 86.0 86.0 86.1 86.1 86.1 86.1 66.1 66.1

GE 56C 63.4 82.2 85.4 86.1 87.3 87.5 88.4 88.4 88.4 88.4 88.6 88.6 88.6 P8.6 88.6 8b.9uE 400! 63.4 82.7 86.C 8 .5 89.2 89.4 90.3 90.5 90.7 90.7 90.9 90.9 90.9 9U.9 90.9 9L.9GE 30 63.4 82.7 86.1 87.9 90.1 90.5 92.0 92.6 92.8 93.0 93.4 93.4 93.4 93.4 93.4 93.4

GE 2001 63.4 P2.7 86.1 87.9 90.1 90.5 92.0 92.6 92.8 93.2 93.9 93.9 94.7 95.1 95.6 97.2

GE 1001 u3.4 82.7 86.1 83.9 90.1 90.5 92.0 92.6 92.8 93.2 91.9 93.9 94.7 95.3 96.4 99.1

.E rl ,3.4 82.7 86. 1 81.9 90.1 90.5 92.0 92.6 92.8 93.2 93.9 93.9 94.7 95.3 96.4 lGL U.

IOTAL NUM!'R OF OBSERVATIONS: S27

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILiNG VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION hAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-85MONTH: OCT HOURSILST|: 2100-2300

CEILING VISIBILITY IN STATUTE MILESONHOC OS(T:21030

IN I GL GE GE CE GE &E GE GE GE GE GE GE GE GE GE GEFEET I 1o 6 5 4 3 2 112 2 1 1,2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 U

NO CEIL 1 47.0 54.7 54.7 54.7 54.7 54.7 55.2 55.2 55.2 55.2 55.5 55.5 55.5 S5.5 55.5 55.5

GE 200001 48.6 57.5 57.5 57.5 57.5 57.5 58.0 SA.O 56.0 58.0 58.3 58.3 58.3 58.3 58.3 56.3GE 180001 48.9 57.7 57.7 57.7 57.7 57.7 58.3 58.3 58.3 58.3 58.6 58.6 58.6 58.6 58.6 56.6GE 16000C 48.9 57.7 57.7 57.7 57.7 57.7 58.3 58.3 58.3 58.3 58.6 58.6 58.6 S8.6 58.6 58.6GE 140001 48.9 57.7 57.7 57.7 57.7 57.7 58.3 58.3 58.3 58.3 58.6 58.6 58.6 58.6 58.6 5A.6CE 120001 49.2 58.8 58.8 58.8 58.8 58.8 59.4 59.4 59.4 59.4 59.7 59.7 59.7 59.7 59.7 59.7

uE 100001 49.4 60.2 60.2 6C.2 60.2 60.2 60.8 60.8 60.8 60.8 61.0 61.0 61.0 61.0 61.0 61.0GE 900CI 49.4 60.2 60.2 61.2 60.2 60.2 60.8 60.8 60.8 60.8 61.0 61.0 61.0 61.0 01.0 61.0(E 80001 53.6 61.3 61.3 61.3 61.3 61.3 61.9 61.9 61.9 61.9 62.2 62.2 62.2 62.2 62.2 6i.2GE 700CI 51.7 62.4 62.4 62.4 62.4 62.4 63.0 63.0 63.0 63.0 63.3 63.3 63.3 63.3 63.3 63.3GE 60001 52.5 63.3 63.3 62.3 63.3 63.3 63.8 63.8 63.8 63.8 64.1 64.1 64.1 64.1 64.1 64.1

GE 5000 53.0 63.8 63.8 62.8 63.8 63.8 64.4 64.4 64.4 64.4 64.6 64.6 64.6 64.6 64.6 64.bGE 45OC| 53.3 64.1 64.1 64.1 64.1 64.1 64.6 64.6 64.6 64.6 64.9 64.9 64.9 64.9 64.9 64.9GE 40001 53.9 65.2 65.2 65.2 65.2 65.2 65.7 65.7 65.7 65.7 66.0 66.0 66.0 66.0 66.0 66.0LE 350CI 54.4 65.7 65.7 65.7 65.7 65.7 66.3 66.3 66.3 66.3 66.6 66.6 66.6 66.6 66.6 66.6uE 300CI 54.7 66.9 66.9 66.9 66.9 66.9 67.4 67.4 67.4 67.4 67.7 67.7 67.7 67.7 67.7 67.7

GE 25001 56.4 69.3 69.3 64.3 69.3 69.3 69.9 69.9 69.9 69.9 70.2 73.2 70.2 70.2 70.2 7G.2GE 20001 53.0 71.0 71.3 71.3 71.3 71.3 71.8 71.8 71.8 71.8 72.1 72.1 72.1 72.1 72.1 71.1GE 18001 58.0 71.0 71.3 71.3 71.3 71.3 71.8 71.8 71.8 71.8 72.1 72.1 72.1 72.1 72.1 72.1GE 15001 59.8 72.4 72.7 72.7 72.7 72.7 73.2 73.2 73.2 73.2 73.5 73.5 73.5 73.5 73.5 73.5GE 12001 60.2 74.0 75.1 75.1 75.1 75.1 75.7 75.7 75.7 75.7 76.0 76.0 76.0 76.0 76.0 7b.O

GE 10001 60.2 74.0 75.1 75.1 75.1 75.1 75.7 75.7 75.7 75.7 T6.0 76.0 76.0 76.0 76.0 76.3GE 90C1 6j.5 76.2 77.3 71.3 77.3 77.3 77.9 77.9 77.9 77.9 78.2 78.2 78.2 78.2 78.2 76.2GE 80C 60.5 77.3 78.5 78.6 78.5 78.5 79.0 79.0 79.0 79.0 79.3 79.3 79.3 79.3 79.3 79.3GE 7001 60.8 78.5 79.6 79.b 79.8 79.8 80.4 80.4 80.4 80.4 80.7 80.7 80.7 10.7 60.7 61.7GE 6G01 61.0 79.8 80.9 8C.9 81.2 81.2 81.8 81.8 81.8 81.8 82.0 82.0 82.0 82.0 82.0 82.0

GE 5001 61.0 80.1 81.8 8Z.6 84.0 84.0 84.8 94.8 84.8 84.8 85. 85.1 85.1 85.1 85.1 85.1GE 4001 41.0 81.2 82.9 84.3 85.9 65.9 86.7 86.7 86.7 86.7 87.0 87.0 87.0 87.0 37.0 87.UGE 3001 61.0 82.0 84.5 85.9 88.7 88.7 90.6 90.6 90.6 90.6 90.9 90.9 90.9 90.9 90.9 91.2CE 2001 61.0 82.0 84.5 85.9 88.7 88.7 90.6 90.6 90.6 q0.6 90.9 90.9 92.0 92.0 92.5 95.3

; E 10N b.0 82.0 84.5 85.9 88.7 88.7 90.6 90.6 90.6 90.6 90.9 90.9 92.5 92.5 93.6 98.3

GE Il 61.0 82.0 84.5 8!.9 88.7 88.7 90.6 90.6 90.6 90.6 90.9 90.9 92.5 92.5 93.6 100.0

TOTAL NUMPER OF OBSERVATIONS: 3b2

L08AL CLIIAiOLU&Y 8ANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSA Iq EATHEW SERVICE/MAC

GIATION NUM31R: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: OCT HOURS(LSI): ALL

GE ILING VISIBILITY IN STATUTE MILLS

IN I GE GE GE cF GE GE GL GE GE GE GE GE GE GE GE GEFEET 310 6 5 4 3 2 1/2 2 1 112 1 1/4 1 314 5/8 1/2 5/16 1/4 0

NO CEIL I 43.7 56.2 58.1 56.9 59.6 59.7 59.8 59.9 59.9 60.1 60.3 60.3 60.4 60.4 60.5 60.8

uE 2090CI 52.9 61.1 63.1 64.J 64.8 65.0 65.1 65.2 65.2 65.5 65.6 65.6 65.8 65.8 65.9 66.2uE 180OCI 53.1 61.5 63.5 64.5 65.3 65.4 65.6 65.7 65.7 65.9 66.1 66.1 66.2 66.3 66.3 6.b

E 16C0VI 53.1 61.5 63.5 64.5 65.3 65.4 65.6 65.7 65.7 65.9 66.1 66.1 66.2 66.3 o6.3 66.6LE 140CI 53.7 62.0 64.1 65.U 65.8 6L.0 66.2 66.3 66.3 66.5 66.6 66.6 66.8 66.8 66.9 67.3

,E 12000) 54.4 63.0 65.1 66.0 66.8 67.0 67.2 67.3 67.3 67.5 67.7 67.7 67.8 67.8 b7.9 68.3

!E 10001 55.6 64.4 66.5 67.5 68.3 68.5 68.7 68.8 68.8 69.0 69.1 69.1 69.3 69.3 o9.4 69.86E 90001 55.7 64.5 66.6 67.6 68.4 68.6 68.7 68.8 68.8 69.1 69.2 69.2 69.4 69.4 69.5 69.9bE 810C1 56.2 65.0 67.1 68.1 68.9 69.1 69.3 69.4 69.4 69.6 69.8 69.8 69.9 69.9 70.0 7U.46F 70001 56.5 65.3 67.5 68.4 69.3 69.4 69.6 69.7 69.7 69.9 70.1 70.1 70.2 70.3 70.3 71.7E 60C) 56.7 65.6 67.7 6A.7 69.5 69.7 69.8 69.9 69.9 70.2 70.3 70.3 70.4 70.5 70.5 7L.9

.E SO0CI 57.3 66.2 68.4 6S.4 70.3 70.4 70.6 70.7 70.7 70.9 71.1 71.1 71.2 71.3 71.3 71.76E 45001 57.7 66.6 68.8 69.8 70.7 70.8 71.0 71.1 71.1 71.4 71.5 71.5 71.6 71.7 71.7 72.1

.E 400CI 58.6 67.7 69.8 7C.6 71.7 71.9 72.1 72.2 72.2 72.4 72.6 72.6 72.7 72.7 72.8 73.2UE 35001 58.8 68.1 70.2 71.2 72.1 72.3 72.5 72.6 72.6 72.8 73.0 73.0 73.1 73.2 73.2 73.6GE 3C000 59.3 68.9 71.1 72.1 73.0 73.2 73.4 73.5 73.5 73.8 73.9 73.9 74.0 74.1 74.1 74.5

,E 25001 60.1 70.0 72.3 73.3 74.2 74.4 74.6 74.7 74.7 75.0 75.2 75.2 75.3 75.3 754 75.8GE 2C01) 60.7 70.9 73.3 74.3 75.2 75.4 75.6 75.8 75.8 76.0 76.2 76.2 76.3 76.3 76.4 76.8GE 18L1) 50.9 71.3 73.6 74.6 75.5 7S.7 76.0 76.1 76.1 76.3 76.5 76.5 76.6 76.7 76.7 77.1

GE 15001 61.7 72.9 75.3 76.4 77.3 77.4 77.7 77.8 77.8 78.1 78.2 78.2 78.4 78.4 78.5 7b.9bE 17001 62.1 74.1 76.9 78.2 79.1 79.3 79.6 79.7 79.7 79.9 80.1 80.1 80.2 80.3 8-3 8L.7

GE IOOC 62.6 75.C 78.1 79.% 80.4 80.5 80.8 80.9 80.9 81.2 81.4 81.4 81.5 81.6 81.6 82.0b E 9001 t2.7 75.9 79.3 8C.7 81.7 81.9 82.2 82.3 8Z.3 82.6 82.8 82.8 83.0 83.0 33.1 83.5GE 8GO 62.8 76.5 80.2 81.7 82.9 83.0 83.4 83.5 83.5 83.8 84.0 84.0 84.1 84.2 84.2 84.7GE 700) 62.9 77.1 81.1 82.5 84.0 84.2 84.6 84.8 84.9 85.1 85.3 85.4 85.5 85.6 85.6 66.3

(E 6001 63.0 77.7 81.b 83.6 85.3 85.5 86.1 86.6 86.7 87.0 87.2 87.3 87.4 87.5 d7.5 87.9

CE 501 63.1 78.0 82.3 84.5 86.8 87.1 87.9 88.5 88.8 89.3 89.5 89.6 89.8 89.9 89.9 9u.3

GE 40CI b3.1 78.3 82.7 8E.2 87.9 88.1 89.2 90.0 90.6 91.4 91.8 91.9 9Z.2 92.3 92.4 92.8GE 3001 63.1 78.4 82.9 81.5 88.4 88.7 90.0 91.0 91.6 92.7 93.5 93.6 94.3 94.5 94.5 95.3bE 200) 63.1 78.4 82.9 85.S 88.5 88.8 90.1 91.1 91.7 92.9 93.8 93.9 95.1 q5.4 95.7 97.4

C 10) 63.1 78.4 82.9 85.5 88.a 88.8 90.1 91.1 91.7 92.9 93.8 93.9 95.3 95.7 96.3 99.2

GE 0) 63.1 78.4 62.9 85.5 88.5 88.6 90.1 91.1 91.7 92.9 9T.8 93.9 95.3 95.7 96.3 100.0

TOTAL NUM3EP OF OBSERVATIONS: 3948


AIR WEATHER SERVICEIMAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORO: 76-85MONTH: NOV HOURSILST): 0600-0800

• CE IL ING""" ''''''' VISIBILITY IN STATUTE MILES°"

IN I GE GE GE LE GE GE GE GE GE GE GE GE GE GE GE GEFEET 1 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 314 5/8 1/2 5/16 1/4 0

NO CEIL 1 49.7 50.9 52.4 53.4 54.9 55.0 55.0 55.2 55.2 55.2 55.4 55.4 55.8 56.0 56.0 57.L

GE 200001 45.0 55.8 57.5 58.6 60.1 60.3 60.3 60.4 60.4 60.6 60.8 60.8 61.2 61.4 61.4 62.7,a 18000 45.5 56.3 58.0 59.1 60.6 60.8 60.8 61.0 61.0 61.2 61.4 61.4 61.8 61.9 61.9 63.2bE 160001 45.5 56.3 58.0 59.1 60.6 60.8 60.8 61.0 61.0 61.2 61.4 61.4 61.8 61.9 61.9 63.2

GE 140001 46.3 57.3 59.0 6C.1 61.6 61.8 62.1 62.3 62.3 62.5 62.7 62.7 63.1 63.2 b3.2 64.b

(E 12C001 47.2 58.8 60.6 61.8 63.2 63.4 63.8 64.0 64.0 64.2 64.4 64.4 64.7 64.9 64.9 66.2

GE 100001 49.8 61.8 63.b 64.7 66.6 67.0 67.4 67.5 67.5 68.1 68.3 68.3 68.7 68.8 b9.0 7L.3GE 90001 50.0 61.9 63.8 64.9 66.8 67.2 67.5 67.? 67.7 68.3 68.5 68.5 68.8 69.0 69.2 7L.5GE 800lI 5O.6 62.7 64.6 65.7 67.5 67.9 68.3 68.5 68.5 69.0 69.2 69.2 69.6 69.8 70.0 71.3

UE 70001 10.7 62.9 64.7 65.9 67.7 68.1 68.5 68.7 68.7 69.2 69.4 69.4 69.8 70.0 70.1 71.5GE 60001 51.1 63.6 65.7 66.8 68.7 69.0 69.4 69.6 69.6 70.1 70.3 70.3 70.7 71.9 71.1 72.4

GE 5C001 54.9 67.5 69.6 7C.7 72.6 TZ.9 73,3 73.5 73.5 74.1 79.3 74.3 74.6 74.8 75.0 76.3GE 45001 55.2 67.9 70.0 71.1 72.9 73.3 73.7 73.9 73.9 74.4 74.6 74.6 75.0 75.2 75.4 76.7GE 40Co0 57.1 70.5 72.6 73.7 75.6 75.9 76.3 76.5 76.5 77.1 77.2 77.2 77.6 77.8 76.0 79.3

E 35101 58.2 71.6 73.7 74.8 76.7 77.1 77.4 77.6 77.6 78.2 78.4 78.4 78.7 78.9 79.1 8C.4

fE 3005l S9.1 73.9 76.1 77.2 79.3 79.7 80.2 80.4 80.4 81.0 81.2 81.2 81.5 81.7 81.9 93.2

GE 25001 bO.4 76.3 78.5 79.7 82.3 82.6 83.2 83.4 83.4 84.0 84.1 84.1 84.5 84.7 84.9 86.2GE 20001 02.6 77.2 79.7 81.8 83.6 84.1 64.5 84.9 84.9 85.4 85.6 85.6 86.0 86.2 86.4 87.7GE lorl 60.6 77.4 79.9 81.0 83.8 64.1 84.7 85.1 85.1 85.6 85.8 85.8 86.2 86.4 86.6 87.9bE 1501c 61.0 78.0 80.4 81.5 84.7 85.1 85.6 86.0 86.0 P6.6 86.8 86.8 87.1 87.3 87.5 86.8-E 12001 61.2 78.2 81.L 82.1 85.4 85.8 86.4 86.8 8b.8 87.3 87.5 87.5 87.9 88.1 A8.2 89.b

&E 100c1 61.2 78.5 81.3 82.5 85.8 86.2 86.8 87.1 87.1 87.7 87.9 87.9 88.2 88.4 88.6 89.9LE 90CI 61.2 78.7 81.5 83.0 86.6 86.9 87.5 87.9 87.9 88.6 89.0 89.0 89.4 89.6 89.7 91.0GE 8ur b.4 79.1 81.9 83.4 86.9 87.3 87.9 88.Z 88.2 R9.0 89.4 89.4 89.7 89.9 90.1 91.4GE 7001 614 79.1 81.9 83.4 87.1 87.5 88.1 88.6 AA.6 89.4 89.9 89.9 90.3 90.5 90.7 92.0GE 60C1 61.4 79.3 82.3 83.8 87.9 88.2 89.0 89.7 89.7 90.5 91.2 91.2 91.6 91.8 92.0 93.3

GE 5001 61.4 79.3 82.5 84.0 88.1 86.4 89.4 90.1 90.1 90.9 91.6 91.6 92.0 92.2 92.4 93.7GE 4001 61.4 79.3 82.5 84.U 88.2 88.6 89.6 90.3 90.3 91.2 92.0 92.0 92.4 92.5 92.7 94.2uE 3001 61.4 79.3 82.5 84.0 88.2 88.6 89.6 90.5 90.5 91.4 92.2 92.4 92.7 92.9 93.1 95.1

GE 2001 ,1.4 79.3 82.5 84.0 88.2 88.6 89.6 90.7 90.7 92.2 92.9 93.1 93.5 93.7 93.8 97.4

6E 1001 61.4 79.3 82.5 84.0 88.2 88.6 89.6 90.7 90.7 92.2 92.9 93.1 93.5 93.1 93.8 98.3

4E Cl 61.4 79.3 82.5 84.0 88.2 88.6 89.6 90.7 90.7 92.2 92.9 93.1 93.5 93.7 93.8 I0.0


GLOBAL CLISATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORUIFRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURSILSI): 090-1100

CE ILINRG VISIBILITY IN STATUTE MILES


FEET I 1 6 5 4 3 2 1/2 z 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 14 0

NO CEIL 1 47.2 54.4 57.4 58.5 59.5 60.0 60.0 60.0 60.0 60.0 60.1 60.1 60.1 60.1 60.3 6U.3

GE 200001 12.9 60.4 63.6 64.7 65.6 66.2 66.3 66.3 66.3 66.3 66.4 66.4 66.4 66.4 66.6 6L.66E 18OD0 53.6 61.2 64.4 65.5 66.4 67.0 67.1 67.1 67.1 67.1 67.2 67.2 67.2 67.2 b7.4 67.41E 160001 53.6 61.2 64.4 65.5 66.4 67.0 67.1 67.1 67.1 67.1 67.2 67.2 67.2 67.2 67.4 67.4CE 140001 54.9 62.7 65.9 67.a 67.9 68.5 68.6 68.6 68.6 68.6 68.7 68.7 68.7 68.7 68.

9 66.9

6E 120001 56.2 64.4 67.7 68.7 69.7 70.2 70.3 70.3 70.3 70.3 70.5 70.5 70.5 70.5 70.6 70.6

GE 100001 51.3 67.1 70.5 71.8 73.0 73.6 73.7 73.7 73.7 73.7 73.8 73.8 73.8 73.8 74.0 74.0

GE 90001 58.3 67.1 70.5 71.8 73.0 73.6 73.7 73.7 73.7 73.7 73.8 73.8 73.8 73.8 74.0 74.UGE 8COC 59.2 68.2 71.5 72.9 74.1 74.6 74.8 74.8 74.8 74.8 74.9 74.9 74.9 74.9 75.0 T5.jr 700C| 60.1 69.1 72.5 73.8 75.0 75.6 75.7 75.7 75.7 75.7 75.8 75.8 75.8 75.8 76.0 76.0

GE 60001 60.5 69.5 72.9 74.2 75.: 76.0 76.1 76.1 76.1 76.1 76.Z 76.2 76.2 76.2 76.4 76.4

6E 50001 62.4 71.8 75.2 76.5 77.9 78.4 78.5 78.5 78.5 78.5 78.7 78.7 78.7 78.7 78.8 76.8.0 4500I 62.6 71.9 7S.3 76.6 78.D 78.5 78.7 7a.7 78.7 78.7 74.8 78.8 78.8 78.8 78.9 76.9bE 40001 64.2 73.8 77.2 78.5 80.0 80.5 80.7 80.7 80.7 80.7 80.8 80.8 80.8 80.8 80.9 80.9

.E 35001 67.5 77.2 80.7 82.1 83.6 84.2 84.3 84.3 84.3 84.3 84.4 84.4 84.4 84.4 84.6 84.6UE 30001 69.8 80.0 83.8 8E.2 86.7 87.2 87.4 87.4 87.4 87.4 87.5 87.5 87.5 87.5 87.7 87.7

E 2SOC 70.3 80.7 84.6 86.4 88.1 88.6 88.9 88.9 88.9 88.9 89.0 89.0 89.0 89.0 89.1 89.1

.0 20001 72.7 81.5 85.4 87.2 89.0 89.5 89.8 89.8 89.8 89.8 89.9 89.9 89.9 89.9 90.1 9-.1GE 1801r 71.0 81.9 8S.8 87.7 89.5 90.1 90.3 90.3 90.3 90.3 90.5 90.5 90.5 90.5 90.6 91.b.0 1011 71.3 82.6 86.4 88.3 90.2 90.7 91.3 91.3 91.3 91.3 91.4 91.4 91.4 91.4 91.5 91.1GE 1201 71.5 83.4 88.1 89.9 92.3 92.9 93.4 93.4 93.4 93.6 93.7 93.7 93.7 93.7 93.8 93.8

GE 10001 71.5 93.4 88.1 89.9 92.3 92.9 93.4 93.4 93.4 93.6 93.7 93.7 93.7 93.7 93.8 93.8GE 9001 71.5 83.4 88.3 9L.3 92.8 93.3 93.8 93.8 93.8 94.0 94.1 94.1 94.1 94.1 94.2 94.2,E 8001 71.5 83.5 88.1 9C.5 92.9 93.4 94.0 94.0 94.2 94.5 94.6 94.6 94.6 94.6 94.8 94.8E 7001 71.5 83.5 88.6 9C.b 93.0 93.6 94.1 94.1 94.4 94.6 94.8 94.8 94.8 94.8 94.9 94.9

GE 6001 71.5 83.5 88.7 9C.7 93.2 93.7 94.2 94.5 94.8 95.0 95.2 95.Z 95.2 95.2 95.3 91.3

oF 50C) 71.5 93.5 88.7 9[.7 93.4 V4.0 94.5 94.9 95.2 95.4 95.6 95.6 95.6 95.6 95.7 95.7UE 4001 71.5 83.5 88.9 91.9 93.6 94.1 94.8 95.3 95.7 96.0 96.1 96.1 96.1 96.1 96.2 96.2GI 3001 71.5 83.5 88.9 91.9 93.7 94.2 94.9 95.4 96.0 96.4 96.8 96.8 96.9 97.0 97.2 97.2uE 20C1 71.5 83.5 88.9 9C.9 93.7 94.2 95.0 95.6 96.1 96.5 96.9 91.2 97.6 97.9 98.1 9b.8..E 100 71.5 83.5 88.9 91.9 93.7 94.2 95.0 95.6 96.1 96.5 96.9 97.2 97.6 97.9 98.3 99.7

GE Cl 71.5 83.5 88.9 9c.9 93.7 94.2 95.0 95.6 96.1 96.5 96.9 97.2 97.6 97.9 98.3 100.0

TOTAL NUMPLq Of ORSERVATIONS: 745

p-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREIUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFETAC FROM HOURLY OBSERVATIONS


STATION NuMBLR: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORO: 76-85MONTH: NOV HOURS(LSI): 1200-1400

CE IL IN' VISIBILITY IN STATUTE MILES

IN I GE GE GE IF GE GE GE GE 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 5/8 1/2 5/16 1/4 0

NO CEIL 1 52.8 59.9 61.2 62.1 62.S 62.5 62.5 62.5 62.5 62.6 62.6 62.6 62.6 62.6 b2.6 62.o

.E 2000C1 61.3 68.7 70.2 71.5 71.9 71.9 71.9 71.9 71.9 72.0 72.0 72.0 72.0 72.J 72.0 72.u6E 180001 62.0 69.5 71.0 72.3 72.7 72.7 72.7 72.7 72.7 72.8 7Z.8 72.6 72.8 72.8 72.8 71.8GE 160001 62.1 69.6 71.1 72.4 72.8 72.8 72.8 72.8 72.8 73.0 73.0 73.0 73.0 73.0 73.0 73.0

GE 140001 62.9 70.4 71.9 73.3 73.7 73.7 73.7 73.7 73.7 73.8 73.8 73.8 73.8 73.8 73.8 73.6

UE 120001 .4.9 72.7 74.2 75.5 75.9 75.9 75.9 75.9 75.9 76.1 76.1 76.1 76.1 76.1 76.1 76.1

GE 100001 66.4 74.5 75.9 77.3 77.7 77.7 77.7 77.7 77.7 77.8 77.8 77.8 77.8 77.8 77.8 77.8GE 900CI 66.4 74.5 75.9 77.3 77.7 77.7 77.7 77.7 77.7 77.8 77.8 77.8 77.8 77.8 77.8 77.8GE 80001 68. 76.2 77.7 7 .3 79.4 79.4 79.4 79.4 79.4 79.6 79.6 79.6 79.6 79.6 79.6 79.6uE 700CI 68.8 77.3 78.8 8E.1 80.5 80.5 80.S 80.5 8S.5 80.6 83.6 80.6 80.6 80.6 80.6 81.6CE 60001 70.0 78.5 80.0 81.3 81.7 81.7 81.7 81.7 81.7 81.9 81.9 81.9 81.9 81.9 81.9 81.9

UE 50001 71.4 79.6 81.3 82.7 83.1 83.1 83.1 83.1 83.1 83.2 83.2 83.2 83.2 A3.2 83.2 83.2bE 45001 72.2 80.6 82.1 83.5 83.9 83.9 83.9 83.9 83.9 84.0 84.0 84.0 84.0 84.0 84.0 84.UGE 40001 73.0 81.9 83.3 84.8 85.2 85.2 85.2 85.2 85.2 85.3 85.3 85.3 85.3 85.3 85.3 85.3

uE 35001 76.2 85.1 86.6 88.U 88.4 88.4 88.4 88.6 88.6 88.7 88.7 88.7 88.7 88.7 68.7 88.7

GE 30001 78.1 87.2 88.7 9C.3 90.7 90.7 90.7 90.9 90.9 91.0 91.0 91.0 91.0 91.0 91.0 91.0

GE 25JEl 79.0 88.3 89.8 91.5 91.9 91.9 91.9 92.1 92.1 92.2 92.2 92.2 92.2 92.2 92.2 92.2E 20001 79.3 88.8 90.3 92.2 92.9 92.9 92.9 93.0 93.0 93.1 93.1 93.1 93.1 93.1 93.1 93.1

LE 18001 79.3 38.8 90.3 92.2 92.9 92.9 92.9 93.0 93.0 93.1 93.1 93.1 93.1 93.1 93.1 93.1

bE 15001 79.4 89.9 91.7 93.7 94.5 94.5 94.5 94.8 94.8 95.4 95.4 95.4 95.4 9S.4 95.4 95.4GE 12001 79.7 91.1 93.1 95.2 96.1 96.1 96.1 96.4 96.4 97.0 97.0 97.0 97.0 97.0 ?7.0 97.0

GE 10001 79.7 91.5 93.5 95.7 96.6 96.6 96.6 97.0 97.0 97.7 97.7 97.7 97.7 97.7 97.7 97.7GE 9001 79.7 91.7 93.7 95.8 96.9 96.9 96.9 97.3 97.3 98.0 98.0 98.0 98.0 9a.0 98.0 96.0GE 8001 79.7 91.7 93.7 91.8 96.9 96.9 97.0 97.4 97.4 98.1 98.1 98.1 98.1 98.1 99.1 9b.1

oE 7001 79.7 91.9 94.0 9E.1 97.2 97.2 97.3 97.7 97.7 98.4 98.4 98.4 98.4 98.4 98.4 98.4

GE 600l 79.7 91.9 94.0 96.1 97.3 97.3 97.4 98.1 98.1 98.8 98.8 98.8 98.8 98.8 98.8 98.8

6E" 5001 79.7 92.1 94.2 96.A 97.6 97.6 97.7 98.4 98.4 99.1 99.1 99.1 99.1 99.1 99.1 99.1GE 4001 79.7 92.1 94.2 96.4 97.6 97.7 97.8 98.5 98.S 99.2 99.2 99.2 99.2 99.2 99.2 99.lIE 3001 79.7 92.1 94.2 96.4 97.6 97.7 97.8 98.5 98.8 99.5 99.7 99.7 99.7 99.7 99.7 99.7

oE 20C1 79.7 92.1 94.2 96.4 97.6 97.7 97.8 98.5 98.8 99.5 99.7 99.7 99.7 99.9 99.9 100.0

IE 1001 79.7 92.1 94.2 9t.4 97.6 97.7 97.8 98.5 98.8 99.5 99.7 99.7 99.7 99.9 99.9 171.

GE 'I 79.7 92.1 94.2 9E.4 97.6 97.7 97.8 98.5 98.8 99.5 99.7 99.7 99.7 99.9 99.9 I00.0TOTAL NUMMER OF OBSERVATIONS: 7,4...........................................................................°...............


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION NAME: FT ORD/FRZTZSCHE AAF CA PERIOD OF RECORO: 76-85MONTH: NOR HOURS(LST): ISUO-1700

IN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 10 6 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 I 54.1 58.0 59.6 5S.7 59.9 59.9 59.9 59.9 ,0.2 60.3 60.5 60.5 60.S 60.5 60.5 6G.5

GE 2GOOt1 63.2 68.0 69.9 7E.1 70.2 70.2 70.2 70.2 70.5 70.b 70.8 70.8 70.8 70.8 70.8 70.8GE 180001 64.1 68.9 70.8 7C.9 71.1 71.1 71.1 71.1 71.4 71.5 71.7 71.7 71.7 71.7 71.7 71 .7GE 160001 64.4 69.2 71.1 71.2 71.4 71.4 71.4 71.4 71.7 71.8 71.9 71.9 71.9 71.9 71.9 71.9

GE 140001 65.0 69.8 71.6 71.9 72.1 72.1 72.1 72.1 72.4 72.5 72.7 72.7 72.7 72.7 72.7 72.7

GE 1200C1 b6.4 71.7 74.U 74.1 74.3 74.3 74.3 74.3 74.6 74.7 74.9 74.9 74.9 74.9 74.9 74.9

GE 100001 b7.3 73.1 75.4 7E.6 75.7 75.7 75.7 75.7 76.0 76.2 76.3 76.3 76.3 76.3 76.3 76.3GE 90001 67.6 73.4 75.7 75.9 76.0 76.0 76.0 76.0 76.3 76.5 76.6 76.6 76.6 76.6 76.6 7b.6GE 80001 69.9 74.9 77.2 71.3 77.5 77.5 77.5 77.5 77.8 77.9 78.1 78.1 78.1 7B.1 78.1 76.1bE 70001 69.6 75.7 78.1 76.2 78.3 78.3 78.3 78.3 78.6 78.8 78.9 78.9 78.9 78.9 78.9 78.9GE 6C00 70.9 77.0 79.4 71.5 79.7 79.7 79.7 79.7 79.9 80.1 80.2 80.2 80.2 80.2 80.2 8L.2

GE 50001 73.. 79.1 81.4 81.5 81.7 81.7 81.7 81.7 82.0 82.1 82.3 82.3 82.3 82.3 8.3 8Z.3GE 45001 73.5 79.7 82.0 82.1 62.3 82.3 82.3 82.3 82.6 82.7 82.8 82.8 82.8 82.8 82.8 82.8

*t 4EOCI 74.3 80.8 83.1 83.3 83.4 83.4 83.4 83.4 83.7 83.9 84.0 84.0 84.0 84.0 84.0 84.UGE 35001 75.3 82.3 84.6 84.7 84.9 84.9 85.0 85.0 85.3 85.5 85.6 85.6 85.6 85.6 85.6 8b.6

GE 370 t 77.0 84.6 87.1 87.4 87.5 87.5 87.6 87.6 87.9 88.1 88.2 88.2 88.2 88.2 88.2 88.2

GE 25001 77.3 85.6 88.2 8E.8 89.1 89.1 89.2 89.2 89.5 89.7 89.8 89.8 89.8 89.8 89.8 89.8GE 20001 79.2 87.5 90.1 9C.7 91.3 91.3 91.4 91.4 91.7 91.9 92.0 92.0 92.0 92.0 92.0 92.aGE 18001 78.3 87.8 90.4 91.0 91.6 91.6 91.7 91.T 92.0 92.Z 92.3 92.3 92.3 92.3 92.3 92.3GE 150 f!1 78.6 88.4 91.4 92.0 92.6 92.6 92.9 93.2 93.5 93.6 93.8 93.8 93.8 93.8 93.8 93.8GE 120C1 79.1 89.1 92.2 93.u 93.6 93.6 94.0 94.3 94.6 94.8 94.9 94.9 95.1 95.1 95.1 95.1

GE 10001 79.5 89.5 92.6 92.5 94.0 94.0 94.5 94.8 95.1 95.2 95.3 95.3 95.5 95.5 95.5 95.5GE 90cl 79.5 90.0 93.G 94.0 94.6 94.6 95.1 95.3 95.6 95.9 96.1 96.1 96.2 96.2 96.2 96.2GE 80cl 79.5 90.3 93.3 94.3 94.9 94.9 95.5 95.8 96.1 96.5 96.7 96.7 96.8 96.8 96.8 96.8

GE 7CG.i 79.5 93.4 93.5 94.6 95.2 95.2 95.8 96.1 96.4 96.8 96.9 96.9 97.1 97.1 97.1 97.1

GE 63ti 71 .5 90.4 93.6 94.b 95.3 95.3 95.9 96.2 96.5 96.9 97.1 97.1 97.2 97.2 97.2 97.i

GE SOTl 79.5 90.7 93.9 9E.2 95.8 95.8 96.4 96.7 96.9 97.4 97.5 97.5 97.7 97.7 97.7 97.7

GE 4001 7.7 90.8 94.0 95.3 916.1 96.1 96.9 97.2 97.5 98.0 98.1 98.1 98.3 98.3 98.3 98.3UE 30p0 79.8 91.0 94.3 95.8 06.7 96.7 97.5 97.8 98.1 98.7 99.0 99.0 99.1 99.1 99.1 99.1

UE 2al 79.8 91.0 94.3 95.d S-6.7 96.7 97.5 97.8 98.1 98.8 99.1 99.1 99.3 99.3 99.6 99.0

GE 101 79.8 91.u 94.3 95.8 96.7 96.7 97.5 97.8 98.1 98.8 99.1 99.1 99.3 99.3 99.7 IU.U

GE 01 79.8 91.0 94.3 95.8 56.7 96.7 97.5 97.8 98.1 98.8 99.1 99.1 99.3 99.3 99.7 100.0




STATION NUMBER: 724916 STATION KAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURS(LSTI: IRLO-2000

IN G EC GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 U

NO CEIL 1 51.1 62.5 62.7 61.7 63.7 64.2 64.2 64.4 64.4 64.4 64.4 64.4 64.8 64.8 65.0 65.0

&E 200001 54.4 67.2 67.4 61.4 68.4 68.9 68.9 69.1 69.1 69.1 69.1 69.1 69.5 69.5 69.7 69.7GE 180001 55.4 68.4 68.5 68.5 69.5 70.1 70.1 70.2 70.2 70.2 70.2 70.2 70.6 70.6 70.8 70.6GE 160001 55.7 68.7 68.9 68.9 69.9 70.4 70.4 70.6 70.6 70.6 70.6 70.6 71.0 71.0 71.2 71.2

GE 140001 56.3 69.3 69.5 6S.5 70.4 71.0 71.0 71.2 71.2 71.2 71.2 71.2 71.6 71.6 71.8 71.8

GE 120001 56.3 69.9 70.2 7C.2 71.2 71.8 71.8 71.9 71.9 71.9 71.9 71.9 72.3 72.3 72.5 72.5

.E IO000CI 58.6 73.6 74.C 74.J 75.0 75.5 75.5 75.7 75.7 75.7 75.7 75.7 76.1 76.1 76.3 76.3GE 90001 5P.9 74.0 74.4 74.4 75.3 75.9 75.9 76.1 76.1 76.1 76.1 76.1 76.5 76.5 76.6 76.6GE 8000 59.9 75.1 75.5 75.5 76.5 77.0 77.0 77.2 77.2 77.2 77.2 77.2 77.6 77.6 77.8 77.8

GE 7900 b3.3 75.7 76.1 76.3 77.2 77.8 77.8 78.0 78.0 78.0 78.0 78.0 78.3 78.3 78.5 7V.5

GE 6r00! 6.6 76.3 76.8 77.0 78.0 78.5 78.5 78.7 78.7 78.7 78.7 78.7 79.1 79.1 79.3 79.3

UE 500C1 63.5 79.8 80.6 8E.8 81.7 82.3 82.3 82.5 82.5 82.5 82.5 82.5 82.9 82.9 83.1 83.1GE 45001 b3.7 80.2 81.0 81.Z 82.1 82.7 82.7 82.9 82.9 R2.9 82.9 82.9 83.2 83.2 d3.4 83.4.E 400CI 64.2 81.0 81.7 81.9 82.9 83.4 83.4 83.6 83.6 83.6 83.6 83.6 84.0 84.0 84.2 84.2

GE 35U0C 65.3 82.3 83.1 83.2 84.2 84.7 84.7 84.9 84.9 84.9 84.9 84.9 85.5 85.5 85.7 85.7

GE 30001 b5.7 84.2 84.9 85.1 86.1 86.6 86.6 86.8 86.8 86.8 86.8 86.8 87.4 87.4 87.6 87.6

GE 25001 66.1 85.7 87.0 87.4 88.7 89.3 89.3 89.5 89.5 89.5 89.5 89.5 90.0 90.0 90.2 90.2wE 2c001 66.3 86.4 87.9 8E.3 89.6 90.2 90.2 90.4 90.4 90.4 90.4 90.4 91.0 91.0 91.1 91.1GE 1800! 66.3 86.4 87.9 88.3 89.6 90.2 90.2 90.4 90.4 90.4 90.4 90.4 91.0 91.0 91.1 91.1uE 15001 66.9 87.6 89.1 89.5 91.0 91.5 91.5 91.7 91.7 91.7 91.7 91.7 92.3 92.3 92.5 92.5

GE 12001 67.2 88.1 89.6 9C.6 92.1 92.7 92.7 92.8 92.8 93.0 93.0 93.0 93.8 93.8 94.0 94.0

GE 10001 67.4 88.3 89.8 9C.8 92.3 92.8 92.8 93.0 93.0 93.2 93.2 93.2 94.0 94.0 94.2 94.2GE 901 67.6 88.5 90.0 91.1 92.7 93.2 93.2 93.4 93.4 93.6 93.6 93.6 94.4 94.4 ,4.5 94.5GE 800! 67.8 89.5 91.C 92.1 93.6 94.2 94.2 94.4 94.4 94.5 94.5 94.5 95.3 95.1 95.5 95.5

GE 7G0 68.0 90.0 91.5 92.7 94.2 94.7 94.9 95.1 95.1 95.3 95.3 95.3 96.0 96.0 96.2 96.2

5E 600! 68.0 90.4 91.9 93.2 94.7 95.3 95.5 95.7 95.7 95.9 95.9 95.9 96.6 96.6 96.8 96.8

GE 500! 64.4 91.1 92.7 94.2 95.7 96.2 96.4 9t..6 96.6 96.8 96.8 96.8 97.6 97.6 97.7 97.76E 4001 61.4 91.1 92.7 94.2 96.0 96.6 96.8 97.2 97.2 97.4 97.4 97.4 98.1 98.1 98.3 96.3GE 30C! 68.4 91.1 92.7 94.2 96.0 96.6 96.8 97.2 97.2 '7.4 97.9 97.9 98.7 98.7 98.9 96.9

.E 2001 68.4 91.1 92.7 94.2 96.2 96.8 97.0 97.4 97.4 97.6 9R.1 98.1 99.1 99.1 99.4 99.4

,E 1001 69.4 91.1 92.7 94.2 96.2 96.8 97.0 97.4 97.4 97.6 98.1 98.1 99.1 99.1 99.6 100.0

GE 01 68.4 91.1 92.7 94.2 96.2 96.8 97.0 97.4 97.4 97.6 98.1 98.1 99.1 99.1 99.6 1CL.0

TOTAL NUMBLI? OF OBSERVATIONS: 531

-IL

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITTUSAFETAC FROM HOURLY OBSLRVATIONSAIR WEATHEN SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV HOURSILST): 21U0-23U0

CEILINGVIILIYISTTEMLS

IN I S GE GE CE GE GE GE GE GE GE GE GE GE GE GE (EFEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CEIL I 51.7 63.3 64.4 64.6 65.3 66.5 65.5 65.5 685.5 65.7 65.7 65.7 66.2 66.2 a6.2 66.4

GE 200001 S4.6 66.2 67.2 67.5 68.1 68.3 68.3 68.3 68.3 68.6 68.6 68.6 69.0 69.0 69.0 69.2GE 1800r1 54.6 66.8 67.9 66.1 68.8 69.0 69.0 69.0 69.0 69.2 69.2 69.2 69.7 69.7 69.7 69.9GE 160001 55.2 67.5 68.6 66.8 69.4 69.7 69.7 69.7 69.7 69.9 69.9 69.9 70.3 70.3 70.3 70.6AE 140001 55.7 67.9 69.0 69.2 69.9 70.1 70.1 70.1 70.1 70.3 70.3 70.3 70.7 70.7 10.7 71.0GE 120001 55.9 68.8 69.9 7C.1 70.7 71.0 71.0 71.0 71.0 71.2 71.2 71.2 71.6 71.6 71.6 71.6

GE 100001 53.1 72.9 74.0 74.2 75.1 75.3 75.3 75.3 75.3 75.5 75.5 75.5 76.0 76.0 76.0 7b.2GE 90001 58.5 73.4 74.5 74.7 75.5 75.8 75.8 75.8 75.8 76.0 76.0 76.0 76.4 76.4 76.4 76.6GE 80001 59.4 74.2 75.3 75.5 76.4 76.6 76.6 76.6 76.6 76.9 76.9 76.9 77.3 77.3 17.3 77.5GE 70001 60.0 7S.1 76.2 76.4 77.3 77.5 77.S 77.5 77.5 77.7 77.7 77.7 78.2 78.2 7A.2 78.4GE 60001 60.7 76.2 77.3 71.5 78.4 76.6 78.6 78.6 78.6 78.8 78.8 78.8 79.3 79.3 79.3 79.5

GE 50001 62.9 79.5 80.6 8C.8 81.7 81.9 81.9 81.9 81.9 82.1 82.1 82.1 82.5 92.5 82.5 8Z.8GE 450CI 13.3 79.9 81.0 81.2 82.1 82.3 82.3 82.3 82.3 82.5 82.5 82.5 83.0 83.0 83.0 83.2GE 40001 63.5 80.1 81.4 81.7 82.5 82.8 82.8 82.8 82.8 83.0 83.0 83.0 83.9 83.4 83.4 83.6A 35001 64.C 81.4 82.8 83.2 84.1 84.3 84.3 84.3 84.3 84.5 84.5 84.5 84.9 84.9 B4.9 8S.2GE 30001 64.2 82.1 83.4 83.8 84.7 84.9 84.9 84.9 84.9 85.2 85.2 85.2 8S.6 85.6 05.6 86.8

GE 25001 65.5 84.3 85.8 86.2 87.1 87.3 87.3 87.3 87.3 87.6 87.6 87.6 88.0 88.0 88.0 8b.26E 20001 65.9 85.4 86.9 87.3 88.2 88.4 88.4 88.4 88.4 88.6 88.6 88.6 89.1 89.1 89.1 89.3GE I8GI 65.9 85.8 87.3 87.8 88.6 88.9 88.9 88.9 88.9 89.1 89.1 89.1 89.S 89.5 89.5 89.76E iSO01 66.8 87.6 89.1 89.5 90.4 90.6 90.6 90.6 90.6 90.8 90.8 90.8 91.3 91.3 91.3 91.5.E 12001 L6.8 88.4 90.0 9C.4 91.7 91.9 91.9 91.9 91.9 92.1 92.1 92.1 92.6 92.6 92.6 92.8

GE 100CI 66.8 88.6 90.2 9C.6 91.9 92.1 92.1 92.1 92.1 92.4 92.4 92.4 92.8 92.8 92.8 93.0GE 9001 67.0 88.9 90.4 i/c.b 92.1 92.4 92.4 92.4 92.4 92.6 92.6 92.6 93.0 93.0 93.0 93.iLE 80CI 67.0 89.1 90.6 91.3 92.4 92.6 92.6 92.6 92.6 92.8 92.8 92.8 93.2 93.2 93.2 93.4. F 7001 67.0 89.5 91.U 91.5 92.8 93.0 93.2 93.2 93.2 93.4 93.4 93.4 93.9 93.9 93.9 94.1GE 6001 67.2 90.2 91.9 92.4 93.9 94.1 94.8 94.8 94.8 96.0 96.0 95.c 95.4 96.4 9S.4 95.6

GE 5001 67.2 90.4 92.1 92.6 94.1 94.3 95.0 95.2 95.2 95.4 95.4 96.4 95. 95.9 95.9 96.1GE 41OI 67.2 90.8 92.6 93.2 95.0 95.2 95.9 96.1 96.1 96.3 96.3 96.3 96.? 96.7 96.7 96.9GE 3001 67.2 90.8 92.8 93.2 96.2 95.4 96.1 96.3 96.3 96.7 96.7 96.7 97..? 97.2 97.2 97.4GE 2001 67.2 90.8 92.8 93.2 95.2 95.9 96.7 96.9 96.9 97.6 97.6 97.6 98.6 98.5 98.7 99.6GE 1001 67.2 90.8 92.8 93.1 95.2 96.9 96.7 96.9 96.9 97.6 97.6 97.6 98.5 98.5 98.7 99.8

.E -1 67.2 90.8 92.8 93.2 9S.2 95.9 96.7 96.9 96.9 97.6 97.6 97.6 98.5 98.6 98.7 100.0


LOBAL CLIMATOLOGY BRANCH PERCENIAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYJSAFETAC FROM HOURLY OBSERVA7IONS418 WEATHER SERVICE/MAC

TATION NUNB.R: 726916 STATION hAME: FT OROIFRITZSCHE AAF CA PEBIO OF RECORO: 76-85MONTH: NOV HOURS(LST): ALL

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE CE 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 1/4 1 3/4 5/8 1/2 5/16 1/ 1

NO CEIL I 4q.6 57.9 59.5 6C.1 60.8 61.0 61.0 61.1 61.2 61.2 61.3 61.3 61.5 61.5 61.6 61.8

6,E 200001 55.8 66.5 66.2 66.9 67.6 67.9 67.9 68. 68.0 68.1 68.2 68.2 68.4 68.6 b8. 66.7.E 180001 56.6 65.3 67.0 67.7 68.4 68.7 68.7 68.8 68.8 68.9 69.0 69.0 69.2 69.2 o,3 69.5.E 1600PI 56.6 65.5 67.2 67.9 68.7 68.9 68.9 69.0 69.0 69.2 69.2 69.2 69.6 69.6 b9.5 69.711 L40001 57.4 66.4 68.1 68.8 69.5 69.8 69.9 69.9 70.0 70.1 70.2 70.2 70.3 70.3 70.6 7L.6.E 120001 58.5 67.9 69.8 7C.5 71.2 71.6 71.5 71.6 71.6 71.7 71.8 71.8 72.0 72.0 72.1 7 ..3

6E IGO001 60.4 70.6 72.4 7i.2 76.1 76.3 76.6 74.5 74.5 74.7 74.8 76.8 76.9 75.0 75.0 75.3UE 90001 60.6 70.8 72.6 71.4 76.3 76.5 74.6 76.7 74.7 74.9 75.0 75.0 75.1 75.1 75.2 71.6LE 80001 61.6 72.0 73.9 74.6 75.5 75.7 75.8 75.9 75.9 76.1 76.2 76.2 76.3 76.4 76.4 76.7bE 70O 01 62.3 72.8 76.6 75.4 76.3 76.6 76.6 76.7 76.7 76.9 77.0 77.0 77.1 77.2 77.3 77.5uE 60001 63.0 73.7 75.6 76.4 77.2 77.5 77.6 77.6 77.7 77.8 77.9 77.9 78.1 78.1 78.2 76.q

GE 500c1 65.3 76.3 78.2 75.j 79.9 80.1 80.z 80.3 80.3 80.5 80.6 80.6 80.T 80.8 60.8 81.1(E 45001 65.7 76.7 78.7 79.4 80.3 80.6 80.7 80.7 80.8 81.0 81.0 81.0 81.2 81.2 81.3 61.5GE 40001 66.7 78.1 80.0 8C.8 81.8 82.0 82.1 82.2 82.2 8Z.6 82.5 82.5 82.6 82.7 12.7 83.U.E 3S01| b8.6 80.2 82.2 83.0 86.0 84.2 84.3 84.4 86.5 84.6 86.7 84.7 86.9 84.9 85.0 85.24E 30001 7C.0 82.3 86.4 85.3 86.3 86.5 86.7 86.7 86.8 87.0 87.0 87.0 87.2 87.3 67.3 87.5

GE 25001 70.7 83.7 85.9 87.G 88.2 88.6 88.6 88.7 88.7 88.9 89.0 89.0 89.Z 89.2 89.3 89.5GE 20001 71.2 86.7 87.0 86.1 89.6 89.7 89.8 90.0 90.0 90.2 90.2 90.2 90.4 90.5 90.5 9L.8uE 1801C 71.2 86.9 87.2 88.3 89.7 89.9 90.1 90.2 90.Z 90.4 90.5 90.5 90.7 90.7 90.8 91.0bE 15001 71.6 85.6 88.2 89.4 90.8 91.1 91.4 91.5 91.6 91.9 92.0 92.0 92.1 92.2 92.2 92.5(E 120CI 71.9 86.5 89.3 9C.6 92.2 92.5 92.8 92.9 93.0 93.3 93.6 93.4 93.7 93.7 93.8 94.0

-E 10001 72.0 86.8 89.5 9C.9 92.5 92.8 93.1 93.3 93.3 93.7 93.7 93.7 94.0 94.0 94.1 94.3GE 9001 77.0 87., 89.8 91.2 92.9 93.2 93.5 93.7 93.8 96.1 96.2 96.2 94.5 94.5 94.6 94.8LE 8001 77.1 87.3 90.1 91.5 93.2 93.5 93.8 96.1 96.2 96.6 96.7 94.7 96.9 95.0 95.1 95.3&E 7001 72.1 87.5 90.3 91.8 93.5 93.8 94.2 96.4 96.5 95.0 95.1 95.1 95.6 95.4 95.5 95.7,E 6001 72.2 87.7 90.6 92.1 93.9 96.2 94.7 95.1 95.2 95.6 95.8 95.8 96.0 96.0 96.1 96.3

GE 5001 72.2 87.9 90.9 92.6 94.3 96.6 95.1 95.5 95.6 96.1 96.2 96.2 96.5 96.5 96.6 96.8.E U001 72.2 88.0 91.0 92.6 96.6 96.9 95.5 95.9 96.1 96.S 96.7 96.7 96.9 97.0 97.1 97.35E 031 72.3 88.0 91.1 92.7 94.8 95.1 95.6 96.1 96.6 96.9 97.3 97.3 97.6 97.6 97.7 96.05E 2011 72.3 88.0 91.1 92.7 96.8 95.1 95.8 96.3 96.5 97.2 97.6 97.1, 98.1 98.2 98.4 99.2GE 1001 72.3 88.U 91.1 92.7 94.8 95.1 95.8 96.3 96.5 97.2 97.6 97.b 98.1 98.2 98.5 99.7

GE 01 72.3 88.s 91.1 92.7 96.8 95.1 95.8 96.3 96.5 97.2 97.6 97.6 98.1 98.2 98.5 100.0


LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETAC FROM HOURLY OBSERVATIONSIR WEATHER SERVICE/MAC

TATION NUM3LR: 724916 STATION NAME: FT ORD/FR1TZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: DEC HOURSILST): 060n-0800. . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . . .. . . . . . . ......- e . e . . e e e . . . t . ' ... .. . . . . ..

EILING VISIBILITY IN STATUTE MILESIN I GE GE GE CE GE GE GE GE GE GE GE GE GE GE GE GE

FEET J 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/4 5/A 1/2 5/16 1/q 0

40 CEIL I 48.5 53.8 54.9 58.4 56.8 56.8 57.0 57.2 57.2 57.5 57.5 57.5 57.9 58.3 59.1 60.6

;C 200001 57.4 56.2 57.5 59.4 59.8 59.8 60.0 60.2 60.2 60.6 60.6 60.6 60.9 61.3 62.1 63.6,E 180001 51.3 57.5 58.9 6C.8 61.1 61.1 61.3 61.5 61.5 61.9 61.9 61.9 62.3 62.6 63.4 64.9aE 160001 51.5 57.9 59.2 61.1 61.5 61.5 61.7 61.9 61.9 62.3 62.3 62.3 62.6 63.0 63.8 65.3uE 14C001 52.5 58.9 60.2 62.1 62.S 62.5 62.6 62.8 62.8 63.2 63.2 63.2 63.6 64.0 b

4.7 6b.2

GE 120001 53.6 60.0 61.5 62.4 63.8 63.8 64.0 64.2 64.2 64.5 64.5 64.5 64.9 65.3 66.0 67.5

[E 100001 64.0 61.1 62.8 64.9 65.3 65.3 65.7 65.8 66.0 66.4 66.4 66.4 66.8 67.2 67.9 69.4uE 90001 54.0 61.5 63.2 65.3 65.7 65.7 66.0 66.2 66.4 66.8 66.8 66.8 67.2 67.5 68.3 b9.8GE 80001 56.2 64.2 65.8 67.9 68.3 68.5 68.9 69.1 69.2 69.6 69.6 69.6 70.0 70.4 71.1 72.6

-E 7001 56.8 64.7 66.4 68.5 68.9 69.1 69.4 69.6 63.8 70.2 70.2 70.2 70.6 70.9 71.7 73.2-E 6000 58.9 66.8 68.5 7C.6 70.9 71.1 71.5 71.7 71.9 72.3 72.3 72.3 72.6 73.0 73.8 75.3

5C 500r) 60.0 68.5 70.2 72.3 72.6 72.8 73.2 73.4 73.6 74.0 74.0 74.0 74.3 74.7 79.5 77.0GE 450CI 60.6 70.0 71.7 72.6 74.3 74.5 74.9 75.1 75.3 75.7 75.7 75.7 76.0 76.4 77.2 78.7

OE 40U01 62.3 71.9 73.6 75.7 76.2 76.4 76.8 77.0 77.2 77.5 77.5 77.5 77.9 78.3 79.1 81.6GE 35001 63.0 73.0 74.9 77.0 77.5 77.7 78.1 78.3 78.5 78.9 78.9 78.9 79.2 79.6 80.4 81.9

GE 3C001 64.2 74.9 76.8 7E.9 79.4 79.8 80.2 80.4 80.6 80.9 81.1 81.1 81.9 82.3 63.0 84.5

,E 25001 65.1 76.6 78.5 8C.6 81.1 81.5 81.9 82.1 82.3 82.6 82.8 82.8 83.6 84.0 84.7 8b.2GE 20001 65.7 78.3 80.2 82.5 83.0 83.4 83.8 84.0 84.3 84.7 84.9 84.9 85.7 86.0 86.8 88.3UE 18001 65.7 78.5 80.4 82.8 83.6 84.0 84.3 84.5 84.9 85.3 85.5 85.5 86.2 86.6 87.4 88.9

GE 150( 65.8 79.6 81.5 84.2 85.5 85.8 86.2 86.4 86.8 87.2 87.4 87.4 88.1 A8.5 69.2 9u.8GC 12001 66.0 80.8 82.6 85.3 86.6 87.0 87.4 87.5 87.9 58.3 88.5 88.5 89.2 89.6 90.4 91.9

GE 10001 66.2 80.9 82.8 8.! 86.8 87.4 87.7 87.9 88.3 88.7 84.9 88.9 89.6 90.0 90.8 9i.3E 9001 66.4 81.3 83.2 86.0 87.4 87.9 88.3 88.5 88.9 89.4 89.6 89.6 90.4 90.8 91.5 93.0

11E BON 66.6 81.7 83.6 86.6 87.9 88.5 88.9 89.1 89.4 90.0 90.2 90.2 90.9 91.3 92.1 93.6

IC 730C 66.6 81.7 83.6 88.6 67.9 88.5 88.9 89.1 89.4 90.0 90.2 90.2 9Q.9 91.3 92.1 93.b

,,E 60CI 66.6 81.7 83.6 86.6 87.9 88.5 88.9 89.1 89.6 '(3.2 90.4 90.4 91.1 91.5 92.3 93.8

iE 5301 66.6 81.7 83.8 86.8 88.1 88.7 89.1 89.2 89.8 90.6 90.8 90.8 91.5 91.9 92.6 94.2GE 400 b6.6 81.7 83.8 86.8 88.1 88.7 89.1 89.4 90.0 90.9 91.3 91.3 92.1 92.5 113.2 94.9GC 3i 01 66.6 81.7 83.8 86.8 88.1 88.7 89.1 89.4 90.0 90.9 91.5 91.5 92.5 92.8 93.6 95.3(.E 2VI)l 66.6 81.7 83.8 86.8 88.1 88.7 89.1 89.4 90.0 90.9 91.5 91.5 92.8 93.2 94.3 97.5IE 1 [l 66.6 81.7 83.8 86.8 88.1 88.7 89.1 89.4 90.0 90.9 91.5 91.5 93.0 93.8 95.1 99.2

GE 01 66.6 81.7 83.8 86.8 88.1 86.7 89.1 89.4 90.0 90.9 91.5 91.5 93.0 93.8 95.1 I0.0

"OTAL NUMBER OF OBSERVATIONS: S30

GLOBAL CLIMATOLOGY 1RANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY ObSERVATIONSAIR WEATHER SERVICE/MAC

STATION NULIRER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURS(LSTI: 09C0-1100

Be.. . . . . . ..•. . . . . . .. . . . . . . ..•. . . . . .. . . . . . ..... ..... ....... ......• ,. ....e • • .. • • .....,t .e e. ......... ~e * .... •

CEILING VISIBILITY IN STATUTE MILESIN GE GE GE CE GE GE GE GE GE GE GE GE 5E GE GE bE

FEET I 10 6 5 4 3 2 1/2 2 1 1/2 1 1/4 1 1/4 5/8 1/2 S/10 1/4 I

NO CEIL 1 50.9 55.4 57.4 58.2 59.4 59.4 59.4 59.4 59.5 59.5 59.5 59.5 59.6 59.8 59.8 59.9

uE 200001 55.4 62.3 64.5 65.4 66.9 66.9 67.0 67.0 67.2 67.2 67.2 67.2 67.3 67.4 67.4 67.76E I80OCI 56.3 63.5 65.7 66.6 68.1 68.1 68.3 68.3 68.5 68.5 68.5 68.5 68.6 68.7 68.7 69.0GE 16000J 56.3 63.5 65.7 66.6 68.1 68.1 68.3 68.3 68.5 68.5 6S.5 68.5 68.6 68.7 68.7 69.0

G E 1400C 57.r 64.2 66.5 67.5 69.0 69.0 69.3 69.3 69.4 69.4 69.4 69.4 69.5 69.7 .9.7 69-9

UE 120001 57.5 64.8 67.C 6E.1 69.S 69.5 69.8 69.8 69.9 69.9 69.9 69.9 70.1 70.2 70.2 7U.4

GE IDOOCi 58.7 66.6 68.9 69.9 71.4 71.4 72.0 72.0 72.2 72.2 72.2 72.2 72.3 72.4 72.4 72.7.E 90001 5P.7 66.6 68.9 69.9 71.4 71.4 72.0 72.0 72.2 72.2 72.2 72.2 72.3 72.4 72.4 72.7GE 8 0C0 E0.0 68.2 70.4 71.8 73.2 73.2 73.9 73.9 74.0 74.0 74.0 74.0 74.1 74.3 74.3 74.5

.E 700C1 61.6 69.8 72.0 73.4 74.8 74.8 75.5 75.5 75.6 75.6 75.6 75.6 75.7 75.9 75.9 76.1GE 600C1 b3.2 71.4 73.6 74.9 76.4 76.4 77.0 77.0 77.2 77.2 77.2 77.2 77.3 77.4 77.4 77.7

GE 5000C 64.5 72.8 7S.1 76.4 77.6 77.8 78.5 78.5 78.6 78.6 79.6 78.6 78.8 78.9 78.9 79.2cE 49500 65.6 74.5 76.9 78.2 79.7 79.7 80.3 80.3 80.5 80.5 8.5 80.6 80.6 80.7 80.7 81.1UE 400r1 67.2 76.3 78.b 8C.2 81.7 81.7 82.3 82.3 82.5 82.5 82.5 82.5 82.6 82.7 82.7 83.0

GE 35001 69.4 76.6 81.1 82.6 84.2 84.2 84.8 84.8 85.0 85.0 85.0 85.0 85.1 85.2 45.2 85.5

6E 30001 70.6 81.1 83.8 85.2 86.9 86.9 87.6 87.6 67.7 87.9 87.9 87.9 88.0 88.1 88.1 88.

6E 25001 71.1 82.1 85.0 86.7 88.5 88.5 89.4 89.6 89.7 89.8 89.8 89.8 90.0 90.1 9C.1 9L.4GE 20001 72.2 83.4 86.8 88.8 90.8 90.8 91.8 92.0 92.1 92.2 92.2 92.2 92.3 92.5 92.5 9..

GE 18001 72.3 83.5 86.9 86.9 90.9 90.9 92.0 92.1 92.2 92.3 92.3 92.3 92.5 92.6 92.6 92.9GE 15001 72.3 84.7 88.1 91.1 92.3 92.3 93.4 93.7 93.8 93.7 93.9 93.9 94.1 94.2 94.2 94.5GE 120Ci 72.6 85.5 88.9 9C.9 93.1 93.1 94.2 94.5 94.6 Q4.9 94.9 94.9 95.0 95.1 95.1 95.4

GE 10001 72.6 85.6 89.1 91.0 93.3 93.3 94.3 94.6 94.7 95.0 9S.0 95.0 95.1 95.3 95.3 95.5GE 9001 72.6 85.6 89.1 91.0 93.3 93.3 94.3 94.6 94.7 95.0 95.0 95.0 95.1 95.3 95.3 95.5GE 8301 72.6 5.6 89.1 91.0 93.3 93.3 94.3 94.6 94.7 95.C 95.3 95.0 95.1 95.3 95.3 95.5

GE 70CI 72.6 85.6 89.1 91.U 93.3 93.3 94.3 94.6 94.7 93.0 95.0 95.0 95.1 15.3 95.3 9G.5GE 60UC 72.6 85.6 89.1 91.2 93.4 93.4 94.5 94.7 95.0 95.3 95.3 95.3 95.4 95.5 55.5 95.8

GE 5001 72.6 85.6 89.1 91.3 93.5 93.5 94.6 95.G 95.3 95.6 95.6 95.6 95.8 95.9 91.9 56.2UE 4001 72.6 85.8 89.2 91.4 93.7 93.9 95.1 95.5 95.8 96.2 96.2 96.2 96.4 96.6 6.6 9b.8GE 3L01 72.6 85.8 89.2 91.4 93.8 94.1 95.3 95.8 96.0 96.4 96.4 96.4 9b.8 97.3 97.0 97.2

GE 2001 72.6 85.8 89.2 91.4 93.8 94.1 95.4 95.9 96.3 96.7 96.8 96.8 97.8 98.0 98.4 99.1

GE 10C1 72.6 85.8 89.2 91.4 93.8 94.1 95.4 95.9 96.3 96.7 96.8 9..8 97.8 98.0 98.5 1IU.0

GE Of 72.6 85.8 89.2 91.4 93.8 94.1 95.4 95.9 96.3 96.7 96.8 96.8 97.8 98.0 98.5 100.0


LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETAC FROM HOURLY OBSERVATIONS

IR WEATHER SERVICE/MAC

TATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-S

MONTH: DEC HOURS(LSTJ: 123-1400

:EILING VISIBILITY IN STATUTE MILESIN f ;E 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 1/2 1 1/4 1 3/4 5/ 1/2 5/16 1/4 u

YO CEIL I 57.0 60.7 61.3 61.5 61.8 61.8 61.8 61.6 61.8 61.8 61.8 61.8 61.8 61.8 61.8 61.8

o 200001 64.0 68.5 69.2 6S.4 69.7 69.7 69.7 69.T 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8.2 180001 64.2 68.8 69.6 65.6 70.1 7.1 70.1 70.2 70.4 70.4 70.4 70.6 70.6 70.4 70. 7U.44E 16OO 64.2 68.8 69.6 65.8 70.1 70.1 70.1 70.2 70.6 70.4 70.4 70.4 70.4 70.4 70.4 70.4

GE 140Cri 65.3 70.1 70.9 71.2 71.6 71.4 71.4 71.6 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71.7

UE 12C 66.9 71.8 72.6 72.9 73.2 73.2 73.2 73.3 73.4 73.4 73.4 T3. 73.4 73.4 73.N 73.4

.E 100CI 69.4 74.b 75.4 75.7 76.0 76.0 76.0 76.2 76.4 76.4 76.6 76.6 76.6 76.6 76.6 76.6

.E 90001 6q.6 74.8 75.6 76.0 76.4 7b.6 76.6 76.6 76.8 76.8 77.0 77.0 77.0 77.0 77.0 77.0UE 8P00 70.2 75.7 76,6 77.L 77.4 77.6 77.6 77.8 78.0 78,0 78.2 78.2 78.2 78.2 7R.2 7V .2uE 700"I 71.2 76.6 77.7 7E.1 78.5 7b.6 78.6 78.9 79.0 79.0 79.3 79.3 79.3 79.3 79.3 79.3!E 60r1 72.5 78.1 79.0 75.6 79.8 80.0 80.0 80.2 80.4 80.4 80.6 80.6 80.6 80.6 80.6 80.6

GE 50001 74.6 80.2 81.2 81.6 82.1 82.2 82.2 82.5 82.6 eZ,6 82.9 82.9 82.9 82.9 82.9 82.9',E 450C1 7%7 81.4 82.5 62.9 83.6 83.6 83.6 83.8 84.0 84.0 84.2 84.2 84.2 84.2 86.2 84.2

UE 400C[ 78.2 84.2 85.3 85.7 86.2 864 86.4 86.6 86.8 86.8 87.3 87.0 87.0 87.0 87.0 87.0

bE 3SUCl 83.2 86.6 88.0 86.7 89.2 89.3 89.3 89.b 89.7 89.7 90.0 90.0 90.0 q.0 90.0 9L.0

2E 30001 82.2 89.5 91.2 92.1 93.1 93.3 93.3 93.6 93.7 93.7 94.0 94.0 94.1 94.1 96.1 96.1

UE 2S0CI 82.5 90.1 91.9 92.7 93.7 94.0 94.0 94.3 94.4 96.6 94.7 96.7 96.8 96.8 94.8 94.8.,E 2C10i 62.8 91.1 93.6 96.5 96.0 96.3 96.3 96.5 96.7 96.7 96.9 96.9 97.1 97.1 97.1 97.1,E 18001 82.8 91.2 93.7 96.7 96.1 96.6 96.4 96.7 96.8 96.8 97.1 97.1 97.2 97.2 97.2 97.2

GE 150.1 63.0 91.9 96.4 95.3 96.9 97.2 97.2 97.5 97.7 97.7 98.0 98.0 98.1 98.1 98.1 9e.1

6E 120CI 83.2 92.3 96.8 95.7 97.3 97.6 97.6 97.9 98.1 98.1 99.4 98.4 98.5 98.5 98.5 9b.5

UE 1o00 83.3 92.5 96.2 96.1 97.9 98.1 98.1 98.4 98.7 98.7 99.9 98.9 99.1 99.1 99.1 99.1GE 90C b3.3 92.6 95.2 96.1 97.9 98.1 98.1 98.6 98.7 98.7 98.9 98.9 99.1 99.1 99.1 9oI

,E 81i 83.3 92.5 95.2 96.1 97.9 98.1 98.1 98.4 98.7 98.7 98.9 98.9 99.1 99.1 99.1 99.1GE 7101 83.3 92.7 95.3 96.3 98.0 9b.3 98.3 98.5 98.8 98.8 99.1 99.1 99.2 99.2 99.2 99.26E 6001 83.3 92.7 95.6 96.4 98.1 98.4 98.6 98.1' 98.9 98.9 99.2 99.2 99.3 99.3 99.3 99.3

SE ol 83.4 92.6 95.9 96.9 98.7 98.9 98.9 99.2 99.5 99.5 99.7 99.7 99.9 99.9 99.9 98.9GE 40PI e3.4 92.8 95.9 96.9 98.7 96.9 98.9 99.2 99.5 99.5 99.9 99.9 100.0 100.0 11uO.O 1u.U

.E 33C1 83.4 92.8 95.9 96.9 98.7 98.9 98.9 99.2 99.5 99.5 99.9 99.9 100.0 100.3 i0.0 1C.U

.E 20'1 83.4 92.8 95.9 96.9 98.7 98.9 98.9 99.2 99.5 99.5 99.9 99.9 100.0 100.3 1 n.0 100.0E 001 83.4 92.8 95.9 96.9 98.7 98.9 98.9 99.2 99.5 99.6 99.9 99.9 100.0 10.0 1OO OU0.0

UE Cl 87.4 92.8 95.9 9t.9 98.7 98.9 98.9 99.2 99.5 99.5 99.9 99.9 100.0 100.0 100.0 100.0


LGBAL CL:MATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFE7AC FROM HOURLY OSERVATIONS

1R WEATHER SERVICE/MAC

YATION NUMPER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIO0 OF RECORD: 76-85

MONTH: DEC HOURSILST): 15U0-17C0

.EILING RISIBILITY IN STATUTE MILESIN I FE GE GE CE GL GE GE GE GE GE GE GE GE GE GE GE

FEET I 12 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/u 5/8 112 S/1o 1/4 U

'10 CEIL 1 56.9 61.1 61.5 6:.e 62.2 62.2 b2.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3

LE 200001 64.9 69.5 70.G 71.6 70.6 70.6 70.8 70.8 70.8 70.8 70.8 70.8 70.8 70.8 70.8 7U.9uE 167001 65.5 70.8 71.2 71.6 71.8 71.6 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.2.E 16C001 65.5 70.8 71.2 71.8 71.8 71.6 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0 72.0 7e.ZUE 14CO0I 65.8 71.2 71.6 72.z 72.5 72.5 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.6 72.8

GE 12001 68.2 73.8 74.5 7t.1 75.1 75.1 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.4

uC 1000CI 70.9 77.1 77.7 78.3 78.3 78.3 78.5 78.6 78.6 78.6 78.8 78.8 78.9 78.9 78.9 79.1uE 9P001 70.9 77.1 77.7 7.3 78.3 78.3 78.5 78.b 78.6 78.6 78.8 78.9 79.1 79.1 79.1 19.eGE 8071 71.7 78.0 78.6 7 .4 79.4 79.4 79.5 79.7 79.7 79.7 79.8 80.0 80.2 90.2 60.2 81.3

GE 700CI 72.6 78.9 79.5 8C.3 80.3 80.3 80.5 80.6 80.6 80.6 80.8 80.9 81.1 81.1 01.1 61.2

.E 600CI 74.3 80.6 81.2 82.0 82.C 82.0 82.2 82.3 82.3 82.3 82.5 82.6 82.8 62.8 82.8 82.9

SE 50001 74.9 81.5 82.3 8!.1 83.1 83.1 83.4 83.5 83.5 83.5 83.7 83.8 84.2 84.2 94.2 84.3GE 4501 75.7 82.5 83.2 84.U 84.0 84.0 84.3 84.5 84.5 84.5 84.6 84.8 85.1 85.1 85.1 61.2GE 4000 77.1 84.0 84.9 81.8 85.8 85.8 86.2 86.3 86.3 86.3 86.5 86.6 86.9 86.9 86.9 F7.1

.F 35001 79.2 87.2 88.3 85.2 89.2 89.2 89.5 89.7 89.7 S9.7 89.8 90.0 90.3 90.3 9(.3 91.5

6E 300C1 60.6 90.3 91.7 92.9 92.9 92.9 93.2 93.4 93.4 93.4 93.5 93.7 94.3 04.3 94.3 94.5

GE 25001 81.9 91.2 92.9 94.3 94.5 94.5 94.8 94.9 94.9 94.9 95.1 95.2 95.8 95.8 95.8 96.2GE 20QO 81.7 92.0 93.7 95.4 95.5 95.5 95.8 96.0 96.0 96.0 96.2 96.3 96.9 96.9 96.9 97.1

GE 180CI o2.C 92.3 94.0 95.7 95.8 95.8 96.2 96.3 96.3 96.3 96.S 96.6 97.2 97.2 97.2 97.4

11E 0ISM 82.3 92.8 94.5 96.3 96.5 96.5 96.8 96.9 96.9 96.9 97.1 97.2 97.8 97.8 97.8 98.0

uE 120C 62.5 93.4 95.1 96.9 97.1 97.1 97.4 97.5 97.5 97.5 97.7 97.8 98.5 96.5 98.5 9a.b

GE 1007C 62.6 93.5 95.2 97.1 97.2 97.2 97.5 97.7 97.7 97.7 97.8 98.0 98.6 98.6 98.6 98.8GE 90CI 2.6 03.5 95.2 97.1 97.2 97.2 97.5 97.7 97.7 97.7 97.8 98.0 98.6 98.6 98.6 9b.8

GE ROC 82.6 93.7 95.5 91.4 97.5 97.5 97.8 98.0 98.0 98.0 98.2 98.3 98.9 98.9 98.9 99.1

. 7001 6 .6 93.3 95.5 97.4 97.5 97.5 97.8 98.0 98.0 98.0 98.2 98.3 98.9 98.9 9p.9 9s.1

.E 6001 62.6 93.7 95.5 97.4 97.5 97.5 97.8 98.0 98.0 98.0 98.2 98.3 98.9 98.9 98.9 99.1

GE 50CI 82.6 93.8 95.7 97.5 97.7 97.7 98.2 98.3 98.3 98. 9q.5 98.6 99.2 09.2 99.2 99.4GE CC 82.6 93.8 95.8 97.7 97.8 97.8 98.3 96.5 98.5 98.5 94.6 98.8 99.4 99.4 S9.4 99.5GE 7001 82.6 93.8 95.8 97.7 97.8 97.8 98.3 98.5 98.5 9a.5 99.8 98.9 99.5 99.5 99.5 99.7

GE 20C) 82.6 93.8 95.8 97.7 97.8 97.8 98.3 98.5 98.5 98.5 98.8 98.9 99.5 99.5 99.7 101.0

GE 1071 r 2.6 93.8 95.8 97.7 97.8 97.8 98.3 98.1 98.5 98.5 99.8 98.9 99.5 99.5 99.7 1U.0

GE C 82.6 93.8 95.8 97.7 97.8 97.8 98.3 98.S 98.5 98.5 98.8 98.9 99.5 99.5 99.7 101.0

TOTAL NUM9LR OF OBSERVATIONS: 610

III

LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETAC FROM HOURLY OBSERVATIONSIR WEATHER SERVICE/MAC

TATION NUM9ER: 724916 STATIIN NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURS(LST): 18.0-20C0

-ELING VISIBILITY IN STATUTE MILESIN I GE GE GE CE GE GE bE GE GE GE GE GE GE GE GE IE

FEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 314 5/8 1/2 S/lb 1/4

lic CEIL 1 55.4 64.9 65.q 65.4 66.0 66.0 66.2 66.8 ob.8 66.8 66.8 66.8 66.8 66.8 t7.0 67.3

AF 21001 59.4 71.8 72., 72.8 73.4 73.4 73.6 74.1 74.1 74.1 74.1 74.1 74.1 74.1 74.4 75.5., 18E 0 59.9 72.6 73.4 7j.6 74.2 74.1 74.4 74.9 74.9 74.9 74.9 74.9 74.9 74.9 75.2 76.3

.E 1600 1 59.9 72.6 73.4 73.6 74.1 74.1 74.4 74.9 74.9 74.9 74.9 74.9 74.9 74.9 75.2 7o.3

,f 140O0 ( b0.4 73.1 73.9 74.1 74.7 74.7 74.9 75.5 75.5 75. 75.7 75.7 76.0 76.0 76.3 77.3Fl 1200V1 .2.0 74.7 75.5 75.7 76.3 7b.3 76.5 77.0 77.0 77.0 77.3 77.3 77.6 77,6 77.8 7,.

F 101 1 6 V. 1 76.8 77.6 77.8 78.4 78.4 78.6 79.2 79.2 79.2 79.4 79.4 79.7 79.7 79.9 PI .AF 9P1,I 3.1 76.8 77.6 77.6 78.4 78.4 78.6 79.2 79.2 79.2 79.4 79.4 79 . 7 79.7 79.9 81.3F 80GOI .1.9 78.4 79.2 7S.4 79.9 79.9 80.2 80.7 80.7 80.7 81.0 81.0 81.3 81.3 81.5 bi.b

AF 7C01 64.9 79.4 80.2 8C.5 81.0 81.0 81.3 81.8 81.8 81.8 82.1 82.1 8.3 Z.3 d7.6 83.6E b0C 66.5 81.0 81.6 82.1 82.6 82.6 82.8 83.4 83.4 83.4 83.6 83.6 83.9 83.9 34.2 85.2

E 8rOJC 67.3 81.8 82.6 82.8 83.4 83.4 83.6 84.2 84.2 84.2 84.4 84.4 84.7 84.7 35.0 86.3AE 4 63C 68.6 83.1 83.9 84.2 84.7 84.7 85.0 85.5 85.5 85,5 85.8 85.8 86.0 86 . ) 6.3 87.3A 400CI 69.1 83.9 84.7 8S.0 85.5 85.5 85.8 86.3 86.3 86.3 86.5 86.5 86.8 86.8 o7.1 88.1AE 350C 69.9 85.5 86.3 86.5 87.1 87.1 87.3 87.9 87.9 87.9 88.1 88.1 88.4 F8.4 88.7 89.7

,E 37001 77.4 87.1 88.1 8.4 88.9 88.9 89.2 89.7 89.7 89.7 97.0 90.0 90.5 90.5 90.8 91.8

GE 250Cf 71.5 89.2 90.2 91.5 9.10 91.0 91.3 91.8 91.8 91.8 9 .1 92.1 9Z.6 92.6 92.9 93.9I.E 20071 72.6 90.5 91b 91.8 92.3 92.3 92.6 93.1 93.1 91.1 93.4 93.4 93.9 93.9 94.2 96.33F 18001 72.8 90.8 91.8 92.1 92.6 92.6 92.9 93.4 93.4 93.4 93.7 93.7 94.2 94.2 ,4.5 9b.SGE 150C1 73.1 91.0 92.1 92.3 92.9 92.9 93.1 93.7 93.7 93.7 93.9 93.9 94.5 9. .5 S4.7 9!.a

6 E 120C7 73.1 91.0 92.1 92.3 92.9 92.9 93.1 93.7 93.7 93.7 93.9 93.9 94.5 94.5 V4.7 95.8

GE 10CI 73.1 91. 1r 92.1 92.3 93.4 93.4 93.9 94.5 94.5 94.5 99.7 94.7 95.3 95.3 95.5 96.6uF 9001 73.4 91.3 92.3 92.6 93.7 93.7 94.2 95.0 95.0 95.0 95.3 95.3 95.8 95.8 96.U 97.161 8001 73.4 91.6 92.6 92.9 93.9 93.9 94.5 95.5 95.5 95.5 99.8 95.8 96.3 96.3 36.6 97.6

.E 7301 73.4 92.1 93.1 93.4 94.5 94.5 95.0 96.1 96.0 96.0 96.3 96.3 96.8 96.8 97.1 9..25C 60C1 73.4 92.1 93.1 91.4 9L,5. 94.5 95.0 96.3 96.3 96.3 96.6 96.6 97.1 97.1 97.4 96.4

GE 530r 73.4 92.3 93.4 93.7 94.7 94.7 95.3 96.6 96.6 95.6 96.8 96.8 97.4 97.4 97.6 91 .7I.E 4001 73.4 92.3 93.4 9!.7 94.7 94.7 95.3 96.6 96.6 96.6 96.8 96.8 97.4 97.4 v7.6 IQt,7GE 3001 73.4 92.3 93.4 93.7 94.7 94.7 95.3 96.6 96.6 96.6 96.8 96.8 97.9 97.9 98.2 96.2.E 2001 73.4 92.3 93.4 93.7 94.7 94.7 95.3 96.6 96.6 96.8 97.1 97.1 98.2 98.4 9A.9 IO.0

,E IO 73.4 92.3 93.4 93.7 94.7 94.7 95.3 96.6 96.6 96.8 97.1 97.2 98.2 98.4 98.9 1L. .0

LE 1l 73.4 92.3 93.4 9!.7 94.7 94.7 95..3 96.6 96.6 96.8 97.1 97.1 98.2 98.4 98.9 201.O


AD-A174 414 V / r ZSHL CA PFO IS F8; V2f /

UPCLASSIFIED SFTA

7 U I AVD /2 H

1-0 2*8 281111 W

11 4 11w _6

__ _ _

i .C~~ -- ~a la.I

-m

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERvICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURS(LST): 2100-2300

IN IG GE GE CE 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 3/4 5/8 1/2 S/16 1/4

NO CETL I S7.4 67.6 68.2 65.1 69.1 69.1 69.1 69.7 69.7 69.7 70.6 70.6 70.6 70.9 70.9 7f.9

GE ZGOC 53.6 70.0 70.6 71.5 71.8 71.8 71.8 72.4 72.4 72.4 73.3 73.3 73.3 73.6 73.6 73.6UE 180001 68.6 70.0 70.6 71.5 71.8 71.8 71.8 72.4 72.4 72.4 73.3 73.3 73.3 73.6 73.6 73.6GE 160001 58.6 70.0 73.6 71.5 71.8 71.8 71.8 72.4 72.4 ?2.4 73.3 73.3 73.3 73.6 73.6 73.bGE 140001 5A.9 70.3 70.9 71.8 72.1 72.1 72.1 72.7 72.7 73.3 74.5 74.5 74.5 74.8 74.8 74.8GE 120001 bI.3 73.3 73.9 74.8 75.1 75.1 75.1 75.7 75.7 76.3 77.5 77.5 77.5 77.8 77.8 77.8

GE 100001 62.2 74.8 75.4 7k.3 76.6 76.6 76.6 77.2 77.2 77.8 79.0 79.0 79.0 79.3 79.3 79.3GE 90001 62.2 74.8 75.4 7e.3 76.6 76.6 76.6 77.2 77.2 77.8 79.0 79.0 79.0 79.3 79.3 79.3GE 80001 64.3 77.8 78.4 79.3 79.6 79.6 79.6 80.2 80.2 83.8 82.0 82.0 82.0 82.3 82.3 8 .3GE 70001 64.3 77.8 78.4 75.3 79.6 79.6 79.6 80.2 80.2 80.8 82.0 82.0 82.0 82.3 82.3 82.3GE 6r001 65.5 79.0 79.6 8L.5 80.8 80.8 80.8 81.4 81.4 82.0 83.2 83.2 83.2 83.5 83.5 83.5

GE 5O01 66.7 80.2 80.8 81.7 82.0 82.0 82.0 82.6 82.6 83.2 84.4 84.4 84.4 84.7 84.7 84.7GE 45001 67.9 81.4 82.0 82.9 83.2 83.2 83.2 83.8 83.8 84.4 85.6 85.6 85.6 85.9 85.9 85.9GE 4n001 67.9 81.4 82.0 82.9 83.2 83.2 83.2 83.8 83.8 84.4 85.6 85.b 8S.6 85.9 85.9 85.9GE 35COI 69.1 82.6 83.2 84.1 84.4 84.4 8q.4 85.0 85.0 85.6 86.8 86.8 86.8 87.1 87.1 87.1GE 30001 70.0 83.5 84.1 8E.3 85.3 85.3 85.3 85.9 86.9 86.5 87.7 87.7 87.7 88.0 88.0 86.0

GE 250C1 72.7 86.5 87.1 88.3 88.6 88.6 88.6 89.2 89.2 S9.8 91.0 91.0 91.0 91.3 91.3 91.3.E ZOOCI 73.9 88.6 89.2 9C.4 90.7 9U.7 90.7 91.3 91.3 91.9 93.1 93.1 93.1 93.4 93.4 93.4GE 1801 73.9 88.6 89.2 9C.4 90.7 90.7 90.7 91.3 91.3 91.9 93.1 93.1 93.1 93.4 93.4 93.4GE 15001 74.8 89.5 90.1 91.3 91.6 91.6 91.6 92.2 92.2 92.8 94.0 94.0 94.0 94.3 94.3 94.3GE 120CC 74.8 90.4 91.0 92.5 93.1 93.1 93.1 93.7 93.7 94.3 95.5 95.5 95.5 95.8 95.8 95.

GE 10001 74.8 90.4 91.C 92.5 93.1 93.1 93.4 94.0 94.0 94.6 95.8 95.8 95.8 96.1 96.1 96.1GE 9001 74.8 90.4 91.0 92.5 93.1 93.1 93.4 94.0 94.0 94.6 95.8 95.8 95.8 96.1 96.1 96.1GE 8001 74.8 90.4 91.0 92.5 93.1 93.1 93.4 94.0 94.0 94.6 95.8 95.8 95.8 96.1 96.1 9o.1GE 70n 74.8 90.4 91.0 9i.5 93.1 93.1 93.4 94.0 94.0 94.6 95.8 95.8 95.8 96.1 96.1 96.1GE 6001 1q.8 90.4 91.0 92.S 93.3 93.1 93.4

94.U 94.0 94.6 95.8 95.8 95.8 96.1 96.1 96.1

6E OO1 74.8 90.4 91.0 92.5 93.1 93.1 93.4 94.0 94.0 94.6 95.8 95.8 95.8 96.1 96.1 96.1GE 90P1 74.8 90.4 91.0 92.5 93.1 93.1 93.4 94.0 94.0 94.6 95.8 95.8 95.8 96.1 96.1

9L.1

GE 3001 74.8 90.4 91.c 92.5 93.4 93.4 93.7 94.3 94.3 94.9 96.1 96.1 96.1 96.7 96.7 97.3GE 2001 14.8 90.4 91.C 92.3 93.4 93.4 93.7 94.3 94.3 94.9 96.1 96.1 96.1 96.7 96.7 98.5GE 1001 74.8 90.4 91.C 92.5 93.4 93.4 93.7 94.3 94.3 94.9 96.1 96.1 96.1 96.7 96.7 99.1

GE CI 74.8 90.4 91.0 92.5 93.4 93.4 93.7 9,3 94.3 94.9 96.1 96.1 96.1 96.7 96.7 100.0



STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: DEC HOURSILST) ALL

IN I GE GE G CE GE GE G GE GE GE E GE GE GE GE 6EFEET 1 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/B 112 5/16 1/4 0

NO CEIL 1 54.2 59.7 60.6 61.3 61.7 61.7 61.8 62.0 62.0 62.0 62.1 62.1 62.2 62.3 62.5 62.8

GE 200001 59.1 65.9 67.0 67.8 68.3 68.3 68.4 68.6 68.6 68.7 68.8 68.8 68.9 69.0 69.1 69.6GE 180001 S9.T 66.8 67.9 68.7 69.2 69.2 69.3 69.5 69.6 69.6 69.7 69.7 69.8 69.9 70.1 70.5GE 16000 59.7 66.8 67.9 6e-7 69.3 69.3 69.4 69.6 69.6 69.7 69.8 69.8 69.9 70.0 70.1 ?J.6GE 140001 60.4 67.6 68.8 69.6 70.1 70.1 70.3 70.4 70.6 70.6 70.8 70.8 70.9 71.0 71.1 71.66E 12000 61.9 69.3 70.4 71.3 71.8 71.8 71.9 72.1 72.2 72.3 72.4 72.4 72.6 72.7 72.8 73.3

GE 100001 63.5 71.5 72.7 7.5 74.1 74.1 74.3 74.6 74.6 74.8 75.0 75.0 75.1 75.3 75.4 75.8GE 90001 63.5 71-6 72.8 73.6 74.2 74.2 74.5 74.7 74.8 74.9 75.1 75.2 75.3 75.4 75.6 76.0GE 80001 64.8 73.Z 74.4 75.4 75.9 76.0 76.3 76.5 76.6 76.7 76.9 77.0 77.1 77.2 77.4 77.8GE 70001 65.7 74.1 75.4 76.3 76.9 77.0 77.2 77.5 77.6 77.7 77.9 77.9 78.1 78.2 78.3 78.8GE 60001 67.3 75.7 77.C 77.9 78.5 78.6 78.8 79.1 79.1 79.3 79.5 79.5 79.7 79.8 79.9 81.4

GE storl 69.5 77.2 78.4 79.4 80.0 80.1 80.3 80.6 80.7 80.8 81.0 81.1 81.2 81.3 81.5 81.9GE 45001 69.5 78.5 79.8 85.d 81.4 81.5 81.8 82.0 82.1 82.2 87.4 82.5 82.6 82.8 82.9 83.3GE 41oc 71.0 80.2 81.6 82.6 83.2 83.3 83.6 83.8 83.9 84.0 84.2 84.3 84.4 84.6 84.7 865.1GE 35001 72.7 82.3 83.8 84.9 8S.6 85.6 85.9 86.1 86.2 86.3 86.6 86.6 86.8 86.9 87.1 87.6GE 30001 74.0 84.6 86.3 87.5 88.3 85.4 88.7 89.0 89.1 89.2 89.5 89.5 89.8 90.0 90.1 9,.6

GE 25UA 74.8 86.0 87.8 89.1 89.9 90.1 90.4 90.7 90.8 90.9 91.2 91.2 91.6 91.7 91.8 92.3,E 20001 75.5 87.2 89.3 9E.8 91.8 91.9 92.3 92.6 92.7 92.8 93.1 93.1 93.5 93.6 43.7 94.2GE 1801 75.6 87.4 89.5 91.0 92.0 92.1 92.5 92.8 92.9 93.1 93.3 93.4 93.7 93.8 94.0 94.4GE 15001 75.9 88.2 90.3 91.9 93.1 93.2 93.6 93.9 94.0 94.1 94.4 94.4 94.8 94.9 9S.1 95.5GE 12001 76.1 88.8 91.0 92.6 93.8 93.9 94.3 94.6 94.7 94.9 95.1 95.2 95.S 95.6 95.8 9..2

CE 1mo0 76.1 89.0 91.1 92.7 94.0 94.2 94.6 94.9 95.1 95.2 95.5 95.5 95.9 96.0 96.1 96.6E 9001 76.2 89.1 91.2 92.9 94:1 94.3 94.7 95.1 95.2 95.4 95.7 95.7 96.1 96.2 96.3 96.8

6E 8001 76.2 89.2 91.4 93.0 94.3 94.5 94.9 95.3 95.4 95.6 95.9 95.9 96.3 96.4 96.5 97.0.E 7001 76.2 89.3 91.5 93.1 94.4 94.6 95.0 95.4 95.5 95.7 96.0 96.0 96.4 96.5 96.6 97.1GE 6001 76.2 89.3 91.5 92.2 94.5 94.6 95.1 95.4 95.6 95.9 96.1 96.1 96.5 96.6 96.8 97.2

GE SU0 76.3 89.4 91.7 93.4 94.7 94.9 95.3 95.7 95.9 96.2 96.5 96.5 96.9 97.0 97.1 97.6bE 4001 76.3 89.4 91.7 93.5 94.8 95.f, 95.5 95.9 96.1 96.4 96.7 96.8 97.1 97.3 97.4 97.9GE 3GC1 76.3 89.4 91.7 93.5 94.8 95.0 95.5 96.0 96.2 96.5 96.9 96.9 97.4 97.6 97.7 96.2GE 2001 76.3 89.4 91.7 93.5 94.8 95.0 95.6 96.0 96.3 96.6 97.0 97.0 97.7 97.9 98.3 99.3GE IUll 76.3 89.4 91.7 93.5 94.8 95.0 95.6 96.0 96.3 96.6 97.0 97.0 97.7 98.0 98.4 99.d

&E CI 76.3 89.4 91.7 93.5 94.8 95.0 95.6 96.0 96.3 96.6 97.0 97.0 97.7 98.0 98.4 100.0


L.

- - -

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE Of CEILING VERSUS VISIBILITYUSAFETAC FROM HOUPLV ObSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 724916 STATION A.E.: FT ORDIFRITZSCHE AAF CA PEIO0 OF RECORD: 76-66MONTH: ALL HOURStLSTI: ALL

1N 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 1 112 1 114 1 3/4 5/8 1/2 5/16 1/4 0...........................................................................................................................................

NO CEIL 4 47.1 54.0 55.0 55.3 55.6 55.7 55.7 55.8 55.8 55.9 55.9 55.9 56.0 56.0 56.0 56.2

GE 20000 50.9 58.4 59.5 5g.9 60.3 60." 60.4 60.5 60.5 6D.5 60.6 60.6 60.7 60.7 oO.7 6L.9GE 181001 51.3 58.9 60.0 6C.4 60.8 60.9 60.9 61.0 61.0 61.1 61.1 61.1 61.2 61.2 61.3 61.0bE 160001 51.4 59.0 60.1 6C.5 60.9 61.0 61.0 61.1 61.1 61.2 61.2 61.2 61.3 61.3 bl.3 61.5GE 14000) 51.9 59.7 60.8 61.2 61.6 61.6 61.7 61.8 63.8 61.8 61.9 61.9 61.9 62.0 b2.0 62.2GE 1200I1 52.7 60.6 61.7 62.2 62.5 62.6 62.7 62.7 62.8 62.8 62.9 62.9 62.9 63.0 63.0 63.2

uE 10000) 14.1 62.2 63.4 62.9 64.3 64.3 64.4 64.5 64.5 64.b 64.6 64.6 64.7 64.7 64.8 64.9GE 90C1 54.3 62.5 63.6 64.1 64.5 64.5 64.6 64.7 64.? 64.8 64.8 64.8 64.9 64.9 65.0 65.2GE 80001 55.3 63.7 64.9 65.3 65.7 65.8 65.9 66.0 66.0 66.0 66.1 66.1 66.2 66.2 b6.3 66.4hE 7000) 55.8 64.2 65.4 61.9 66.3 66.4 66.5 66.5 66.5 66.6 66.6 66.6 66.7 66.8 66.8 67.0GE 603001 56.4 64.9 66.1 66.6 67.0 67.1 67.2 61.3 67.3 67.3 67.4 67.4 67.5 67.5 .7.6 67.7

GE 5OC) 57.3 66.0 67.3 63.8 68.2 68.3 68.4 68.4 68.5 68.S 68.6 68.6 68.7 68.7 68.7 66.9GE 4501 57.9 66.8 68.0 68.5 69.0 69.0 69.1 69.2 69.2 69.3 69.3 69.4 69.4 69.5 69.5 69.1GE 40001 58.9 68.1 69.5 71.0 70.4 70.5 70.6 70.7 70.7 70.8 70.8 70.8 70.9 70.9 71.0 71.2GE 35001 60.3 69.9 71.3 71.8 72.3 72.4 72.5 72.b 72.6 72.7 72.7 72.7 72.8 7Z.8 72.9 73.1GE 30001 61.8 72.1 73.6 74.2 74.7 74.8 74.9 75.0 75.0 75.1 75.1 7I.1 75.3 75.3 75.3 75.5

&E 25001 62.8 73.6 75.1 75.8 76.3 76.4 76.6 76.6 76.7 76.7 76.8 76.8 76.9 76.9 77.0 77.1GE 20001 63.8 75.0 76.6 77.3 77.9 78.C 78.2 78.3 78.3 78.4 7R.1 78.4 78.S 78.6 78.6 76.8GE 1800) b4.0 75.3 77.0 77.7 78.3 78.4 78.5 78.b 78.7 78.7 78.8 78.8 78.9 78.9 79.0 79.2GE 1500) 64.8 76.7 78.5 75.2 79.8 79.9 80.1 80.2 80.3 80.3 80.4 80.4 80.5 80.5 a0.6 80.8GE 120I b5.8 78.6 80.6 81.4 82.1 82.2 82.4 82.5 82.6 82.7 82.7 82.7 82.8 82.9 82.9 83.1

GE 10001 66.7 80.4 82.5 83.4 84.2 84.3 84.5 84.b 84.7 84.8 84.8 84.8 85.0 85.0 85.1 85.2GE 9001 67.1 81.5 83.8 84.8 85.6 85.7 66.0 86.1 86.1 86.2 86.3 86.3 86.4 86.5 86.S 66.7GE 800) 67.6 82.7 85.2 86.3 87.2 87.3 87.5 87.7 87.7 87.9 87.9 87.9 88.1 88.1 88.1 88.3bE 70 67.9 83.6 86.1 87.8 88.8 88.9 89.2 89.4 89.4 89.5 89.6 89.6 89.7 89.8 89.8 9L.0GE 60c) 68.2 84.7 87.7 89.2 90.5 90.6 91.0 91.2 91.3 91.4 91.5 91.5 91.6 91.7 91.7 91.9

GE SOCI 68.3 85.3 88.6 9C.4 92.2 92.3 92.8 93.2 93.3 93.4 93.5 93.6 93.7 93.7 93.8 94.0GE 400) 68.4 85.6 89.1 91.1 93.2 93.4 94.2 94.6 94.9 95.2 95.3 95.4 95.5 95.6 95.7 95.9GE 3001 66.4 45.7 89.3 91.4 93.6 93.9 94.8 95.4 95.7 96.2 96.6 96.7 97.0 97.1 97.2 97.bGE 2001 68.4 85.7 89.3 91.4 93.6 93.9 94.9 95.5 95.9 96.5 97.0 9?.1 97.8 98.1 94.3 99.16E 10C 68.4 8S.7 89.3 91.4 93.6 93.9 94.9 95.6 95.9 96.6 97.1 97.2 97.9 98.3 98.7 99.8

GE CI 68.4 85.7 89.3 91.4 93.6 93.9 94.9 95.6 95.9 06.6 97.1 97.2 97.9 98.3 98.7 10U.0

TOTAL NUM9ER OF OBSERVATIONS: 46796

- - - -*

SKY COVER

This summary is prepared from hourly observations and is a percentage frequency distribution of total skycover by tenths, plus mean sky cover and total number of observations. It is presented by month andavailable 3-hour groups.

NOTESt 1. Some sources of punched data used for this summary report cloud amounts in eights. These havebeen converted to tenths prior to summarizing, and notation is made on the form to indicate

that data were originally reported in eights. The manner of conversion is given belowt

E.i QTS TENTHS

0 01 1

2 33 44 S5 66 87 98 (or obscured) 10

2. For Airways stations the symbols of clear, scattered, broken# overcast, and obscured were

used as input for the total sky cover.

Clear was converted to 0/10Scattered wap converted to 3/10Broken was converted to 9/10

Overcast was converted to 10/10Obscured was converted to 10/10

GLOBAL CLIMATLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 724916 STATION NAME: FT OPO/FR1TZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JAN

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS I TOTAL

ILST) 1 0 1 2 3 4 5 6 7 8 9 10 MEAN OS

0-02

C3-05

06-08 18.7 29.9 27.9 23.5 5.8 60

09-11 10.4 31.1 36.0 22.6 6.4 792

12-14 I 8.4 3.0 38.4 20.3 6.5 795

15-17 9.9 31.9 38.3 19.9 6.4 737

18-20 16.5 32.7 27.1 23.7 5.8 553

-1-23 26.3 3U.O 20.0 23.7 5.1 520

TOTALS 15.0 31.4 31.3 22.3 6.0 4006

STATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIO OF RECORD: 77-86MONTH: FEB


HOURS I TOTAL

tLST) I 0 1 2 3 4 5 6 7 8 9 10 MEAN OBS

00-02

C3-05

06-08 8.1 32.0 28.9 31.1 6.7 557

09-11 4.5 32.7 32.8 29.9 6.9 728

12-14 5.0 33.7 33.3 27.9 6.8 738

15-17 3.9 30.5 37.5 28.0 7.1 685

18-20 7.1 37.5 27.7 27.7 6.4 ScO

21-23 18.7 33.5 18.9 28.8 5.6 486

TOTALS 7.9 33.3 29.9 28.9 6.6 3714

I_-I--

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETA C FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE(I AC

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86

MONTH: MAR

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAL(LST) C 1 2 3 4 S 6 7 a 9 10 MEAN 065

06-08 I 7.3 31.4 26.5 34.8 6.8 641

09-11 7 .3 32.3 34.6 25.8 6.7 AID

12-14 I 6.4 34.8 34.3 24.5 6.6 811

15-17 4.3 35.6 32.Z 27.9 6.8 161

13-20 I 8.4 33.8 28.4 29.4 6.6 6u9

21-23 21.3 27.8 21.5 29.4 5.7 572

TOTALS I 9.2 32.6 29.6 28.6 6.5 4206

SATN NUNRERt 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: APR

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I 1TOTAL(LST) I a 1 2 3 4 5 6 7 8 9 I0 MEAN 061

;3-02

C16-08 I .5 32.2 27.0 32.4 6.6 612

09-11 I 1.7 34.1 32.9 22.3 6.2 76

1?-14 I 7.9 45.2 27.4 19.6 56 789

15-17 I 8.2 41.6 32.3 18.0 6.0 734

18-20 I 9.8 3b.7 29.9 21.S 6.0 672

21-23 I 26.4 3C.7 21.1 21.8 5.0 527

TOTALS 1 1.9 37.1 28.4 22.6 5.9 4021.................................................................................................................................

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERuSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 7Z4916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-8bMONTH: MAY......................................... ;. ... ...; .. .. .... L C F ; .. .. ...'; ... ....;..'. .. .. ..'.. .. .. .. .

PERCENTAGE FREQUENCY Or TENTHS Or TOTAL SKY COVER

HOURS I TOTALILST) I 9 1 2 3 4 5 6 7 8 9 10 MEAN OBS

0-02

U3-OS

'6-08 10.8 23.5 26.b 39.1 7.0 723

G9-11 12.8 3b.0 28.9 22.3 5.9 786

12-14 11.5 48.0 27.2 13.4 5.2 786

15-17 12.4 43.1 29.3 15.3 5.5 687

18-20 14.6 40.4 27.6 17.4 5.4 540

21-23 28.7 33.b 14.1 23.6 4.6 411

TOTALS 15.1 37.4 25.6 21.9 5.6 3933

STATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 77-86MONTH: JUN

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAL(LST) 1 0 1 2 3 4 6 6 7 8 9 10 MEAN OBS

:C-O2

C3-05

I6-08 6.2 23.0 18.3 52.5 7.6 731

09-11 10.3 37.6 24.9 27.3 6.1 760

12-14 10.6 55.8 22.6 11.0 4.8 760

1S-17 9.8 5u.1 26.1 14.0 S.3 686

18-20 10.6 41.7 26.8 20.9 $.8 63T

21-23 19.5 32.3 11.1 3!.2 5.7 406

TOTALS 11.2 4C.1 22.0 26.8 5.9 3920

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

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 724916 STATION KAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: JUL... .. . .. .... .... .. .. .. .... ..... .... . .......................PRE T; ';. E C F O O ' ,C ;;................................

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS | TOTAL

ILST) I 0 1 2 3 4 S 6 7 8 9 10 MEAN O0S

[3-05

06-08 6.7 15.8 14.2 63.2 8.1 745

09-11 8.7 35.4 25.2 30.7 6.4 AU2

12-14 11.7 49.9 32.0 6.5 5.0 804

15-17 12.0 38.5 37.0 12.5 5.7 689

19-20 10.3 27.2 27.8 34.7 6.8 536

21-23 1 15.7 19.7 10.8 53.8 6.9 351

TOTALS 1 10.9 31.1 24.5 33.6 6.5 3927

STATION NUMBER: 724916 STATION KAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: AUG

.................................................................................................................................PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOORS j TOTAL

ILST) I 0 1 2 3 4 5 6 7 8 9 10 MEAN OBS

O-02

-3-05

Z;6-08 5.9 17.8 15.4 60.9 8.0 774

09-11 9.7 34.9 29.4 26.0 6.3 839

I2-14 8.3 52.9 28.7 10.2 5.2 836

15-17 8.7 42.4 34.q 14.4 5.8 721

18-20 9.7 33.5 25.3 31.4 6.4 576

21-23 18.1 29.5 9.6 42.8 6.U 316

TOTALS 10.1 35.2 23.8 31.0 6.3 4122

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

or

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SKY COVERUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH : SEP

..........................................................................................::..................................

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAL

ILST)E 0 1 2 3 4 5 6 7 a 9 10 MEAN DBS

10-02

'3-05

'6-08 13.6 21.4 18.7 46.3 7. 706

09-11 16.4 34.5 28.5 20.6 5.7 775

12-14 14.6 50.0 27.3 8.1 4.8 776

15-17 16.0 44.5 26.5 12.9 5.0 667

18-20 20.1 32.8 23.0 24.1 5.5 518

21-23 32.0 22.8 12.0 33.2 5.1 334

TOTALS 18.8 34.3 22.7 24.2 5.5 3776

STATION NUMBER: 724916 STATION NAME: FT ORO/FRITZSCHE AAF CA PERIOD OF RECORD: 76-8SMONTH: OCT

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAL

(LST) 1 0 1 2 3 4 s 6 7 8 9 10 MEAN OaS

O-02

3-05

16-08 14.8 29.6 18.3 37.3 6.3 723

09-11 21.0 35.5 23.4 20.0 5.2 794

12-14 17.4 86.3 23.6 12.7 4.8 85

15-1, 11.4 42.5 29.7 16.4 5.6 691

18-2u 20.2 34.4 19.4 26.0 5.4 526

21-23 26.2 25.4 14.9 33.4 5.4 362

TOTALS 18.5 35.6 21.6 24.3 5.5 39(0............................................................................................................................

I |-



STATION NUMBER: 724916 STATION NAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-85MONTH: NOV

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAL(LSTI I 1 1 2 3 4 5 6 7 a 9 10 MEAN OdS

C3-05

6-08 t 12.1 33.0 31.9 23.0 6.2 527

w9-11 11.7 34.3 31.2 22.8 6.1 737

12-14 10.4 37.6 33.1 18.9 6.0 740

15-17 8.2 38.8 34.5 18.5 6.1 686

18-20 21.4 35.3 23.9 19.4 5.1 527

21-23 30.5 30.7 17.7 21.2 4.6 453

TOTALS 15.7 35.0 28.7 20.6 5.7 3670

STATION NUMBER: 724916 STATION RAHE: FT ORDIFRITZSCHE AAF CA PERIOD OF RECORD: 76-85

MONTH: DEC


HOURS I TOTAL

ILSTJ I a 1 2 3 4 5 6 7 8 9 10 MEAN ObS

LDOO I

U3-05

j6-08 I 20.9 31.0 25.1 23.0 5.5 513

3o-11 I 14.6 34.0 30.1 21.3 5.9 7bi

1?-14 1 13.4 36.8 33.8 16.0 5.7 749

15-17 I 14.8 35.7 33.1 16.3 5.7 649

16-20 I 31.9 29.3 22.3 16.5 4.S 3T6

21-23 I 42.2 22.5 16.1 19.1 4.0 329

TOTALS I 23.U 31.6 26.8 18.7 5.2 3367

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



STATION NUMBER: 724916 STATION hAME: FT ORD/FRITZSCHE AAF CA PERIOD OF RECORD: 76-86MONTH: ALL


HOURS I TOTAL

ILST) I 0 1 2 3 N 5 6 7 8 9 10 MEAN OdS

JAN ALL 15.0 31.4 31.3 22.3 6.0 40d6

FEB 7.9 33.3 29.9 28.9 6.6 3714

MAR I 9.2 32.6 29.6 28.6 6.5 4206

APR 1 11.9 37.1 28.4 22.6 5.9 4021

MAY 1s.1 37.4 25.6 21.9 5.6 3933

JUN 11.2 4G.1 22.0 26.8 5.9 3920

JUL 10.9 31.1 24.5 33.6 6.5 3927

AUG 10.1 35.2 23.8 31.0 6.3 41,2

SEP 18.8 34.3 22.7 24.2 5.5 3776

OCT 18.5 35.6 21.6 24.3 5.5 39u0

NOV 15.7 35.0 28.7 2J.6 5.7 3670

DEC 23.0 31.6 26.8 18.7 5.2 3367

TOTALS 13.9 34.6 26.2 25.3 5.9 4.562

PERATING LOCATION "A"SAFETAC, ASHEVILLE NC PSYCIIROI4ETRIC SUHMAIES

KRT 4

n this section are presented various summaries ot dry and wet-bulb temperatures, Clepoihts, and rel-tive humidity. The order and manner of repsentations follows,

cumulative ercentage frequency of occurrence--Derived from available hourly observations And pre-ented by month and annual for all years combined. These tabulations provide the cumulative percentagerequency to tenths, of temperature by 5-degree Fahrenheit increments, plus mean temperature) standardeviations, and total number of observations in three separate tables as followst 4

a, Daily HIGH temperatures (for available observations)b. Daily LO0W tenperatures (for available observations)c. Daily mean temperatures (high + low temperatures divided by two)

Bivarlate pelcentage frequency distribution and coMultations at dry-bulb versus wet-bulb temperature,

This summary has been temporarily discontinued for the LISOCS pendinq the advi.nt of RUS.WO-2 in mid1986.

3. Means and standard deviatione--Iliese tabulations are derived from available hourly observations andpresent the mean, standard deviation, and total number of observations for the 3-hour groups, by monthand annual and again at the bottom for all hours combine. Summaries for all years combined are presentedin the following three tablesi DRY-BULB TEMPERAIURE, W.T-BULB ITPERAT URE, AND DEWPOINT TEMPERATURE.

4. Cumulative percentage frequency of occurrence of relative humidity--I'his summary is derived trod hourlyobservations and presents the cumulative percentage frequency of occurrence of relative humidity by incre-ments of 10 percent classes, plus the mean telative humidity and total number of observations presentedby month and available 3-hour groups.

•1 -

_ _,._ L PERCENTCLOGAGE ACH DAILY TEMPERATURESA + SA-L;" E VICL/hAL

Z~~c . ~ P 7 , tl ,I TS h AAF CA- .67-7n, 73-86

STATION STATION "fiV YEARS --

CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE -MIMI.VrUM

(FROM DAILY OBSERVATIONS)

TIMP '1 IAN FEE MAP APR MAY JUN JUO AUG SEP CT NOV DEC ANNUAt

IF .7i-~ . - -2-.L ILLT .2. IF 9*

>

).7

- ,..7. 1@7. 1,G. I7 9 9. 5. ,4 2 -A .L 2.4 5. L.a 3.5. 2-9- Z- -a 15-.L a --c 7.1-.-. 1 5.4

>, -. 9 c . 9, 'a.,. 10 .5 1 '-.6 15 .4 34.9 3-.3 17.5 7.4 1 q-.-2

- 1. - 267 , 21. -. -. 35.6. _- -5. 55.3. -69.9+ 64.7. 5 1 IF9 357L .q_ 45_ b 51.9. _- 9 95.8 95.9. 93.9 77.1+ 47.3 7 -.7

MEA7.N. 9.5, 7i:I 1J+ J -- L.3+ . , 2 1-1.5

>~~I L,. OZ J+<) 8 I- L.L

II

>

>

MEA 59. -- -a ---- l 6j. 6 +---i _ i -9

5,1'~~~ ~ 5 -5 &.u87 5.315.2C.7 .3; i 012 .

TOA S 94 5.95 4.S5 ,OT .~) SZ7 39 .5 7 1 571J 6 5.5 i 666

USAFETAC 'IOL 0.15O AWvvf64oso HSFOMAl0S~t

-_,-AL CLrATCLCLY iANCH DAILY TEMPERATURESArI TACA .F AT.-i,- S;7,V I C t- ,A.C

__ ' ~F1 C'I \l/ lIZaCH LAAF CA 5L-7Cs 73-B6STATION STATION NAA i YE ,s

CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE INIU(FROM DAILY OBSERVATIONS)

TEMP PF JAN FES MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

~w. 3.&6 s-& Z& Z1.* .' 3 2 . 33 . 9 -m -- l A3 a1 .i- 2

2 S. 9. - b. bZ-. e b .2. 9a.1, 99.8. ?99. -296-1-- £i.3. 24-~7 6E.677 4 E. 8''3 7 '- . 7 ,I . 9. 5. 3. 1. U C . 10I'l 0. -.- UQ 99,,1,. 9 0-"- U *L,,. . ,9. .. ,

> A - 'L 9-1-. ?9.5. jUL.. liQL.. -99L 95.9. Z.9 9s.4o t 99.Z I, .. . i.OQLX. 98oZ. 8k.3 Q7.3

? 3, A L 99.7. . 959*6. 95 . 99,

> 9 1

1>

>

*- 4 -

* A- - - - - - - - - -- ----.-- - . - - -- . .

I> - - I - - 7 -- i --... . -_ ___ _ _ _ _ +__ _ .. __. ...

>

MEAN 4 1' A41 4C a5 47.L If Af 6A7 .4' .7?t 3.61 2 3. 3.1 ,.,. .390 .949 6.52 .

1OT 52 9 594 597 6 61 5931 i851 599 57i 5E 5,3 i 6& 6USAFETAC 0-21-5(OL Ajufvlous ewTK s Of Trs AU Ossoutf

AL CLIMATOLOGY LRANCH DAILY TEMPERATURESA'- TACA- ,.EATHER SFVIC/MAC

>49- FT ORD/rUITZSCHE AAF CA 6:-70j 713-86STATION NAME ¥EAR.

CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE ,- A N(FROM DAILY OBSERVATIONS)

TEMP (*F) JAN FEB MAR APR MAY JUN. JUL. AUG SEP. OCT NOV DEC ANNUAL

7- .2_ 1-2 . .9 _

_ .4,, 1.3 1.1, 3.5 6.0. 9.0 .19.1 10.7 1.8. .5

.9 { 't5 .9, 8.7. 31 a 5 39i.0- 5. 2. 4 i -7- 14.3. Z . 2?3.> . .a 2b. 39.0. 6

3.7, 02.9, 98.6_ 97.3 98.. 87.2 49.1 22.9 61.2

S3.5 ' 59.7. $5.6. T. 97. I'-0, 1U 1G.D 1 -_QL9_ 99.8 85.5 55.9 85.3

2t 47 84.5- '.6 98.1 ir' .O 1,2.L .. ... . 1c .0 9b.7 85.7 97..4- 98.6+ '19.6, !O0.U. . .. .:, CUU 98.6 .3908

" t~~~~~~~ J603 "+, + .... ... CG{] !79 ..

>~ - ---

- I -1-- - - - 4- I - )I- ;l r %-qg* -F- 9-A---,- 9 9 7- - - --52.2

TOA 08 561 22 594 597, 6- __,53 '81,s9 4 71501b03 6r

U SAIEA 0-- 2 1 ~ ~~ 5 (OL A _____CmmO____OM g os~

__ _ _ _K _ _ _ _ _

MEN_>_I-_~ __ = _ L 4 - - - - -___-V__

* -- + -- -

USAFfTAC ,u 04 21-S(OL Aluv~ous EO4TmNS Of TS€O OO

3,LO"AL CLIMIIVLOSY 9£.A'.CH !VTLCME VALJC7, OF MlAVIMuM Y[IlPEL*TL,,LuAFLTAC (FPLJM DAILY DuSLPVA~tI.'4!

AlP AEATH%; SCAVICE/MAL

STATION A06369: 7,249,6 STAVIVI. fSPPL: FT DrL/19112924CL AP LA PLViCu OF 67060U: t>7To, 73-o,6

WHOLE 0674"LS FAIIRENHEI I-M-U-N-T-H-S- ALL

YrAP I JAN FE53 "AR APR MAY .JuN JuL AUG L 317 NOV LLC MONTHs

62 I*A4 70 7a 75 b9 91 a2 -, 9 7 361 I 74 72 b S 7I ", 6 .S 76 74 9C l. .b5 7 us1-62z 79 7 1 b 2 4,1 73 79 oP 6* 75 Al 687 76 9163 I 74 7c 74 67 71 .6 .2 77 d2 74 76 77 ll.

F-4 64 76L 75 42" be i5 is 71 bl 8 61 66l Q9

65 I 74 7 1 75 61 bV *L6 1£2 75, .3 TO 73 71 95Lb I 55 .6 76 all 71 75 73 74 92 .3 91. 72, gi67 I 76 72 6;9 51 636 b6 1. 69 VA y 2 89 74 9LA 78 76t 79 A L 72 74 7 1 92 .5 ,9 74 6u5 91e69 I 68 61 1 6l 6 73 la 69 7I 7c 76 6, 6i4 74 A4

%~ b 6 72 77 7 Z 6b9 70 o 71 93 . 0 77 b5S 9373 1 -62 *7: '03 .74I *59 *92 074. -7 3 *94 -. 2 *45 Is77C *9474 I *65 *U6 *73 *73 *62 *71 * 13 *69 *Ati6 *b9 * 741 41 *6 *7975 j *73 *69 *71 *63 *79 *66 *s73L *76 -104 -*77 *77 -ac .9476 I *1 *7Z '7V *71 *72 *94 *71 *77 *4,7 tp4 *b6 013 09477 I *71 *76 -70 *74. *7'j *9 */12 -77 '76 *oO *73 -L5 a7b *67 *7c2 064 *66 *44 *72 *714 *74 *44 bb6 *61 b4 *pu79 -b*2 bL1 111 Is72' *69 *o7 *7I. *74 *9,2 . 77 * 76 4 72 .*9:

U. I *69 *7j ~*6 *74 *65 *69 *7b *74 *91 -1,1 *31 *62 *1fl1p 1 I 73 *77 "67 '91 *71 *67 Is ' *72 *t1 , 4 *77 b67 .91

q2 -62 *6c "6L6 *79 *73 * 7 3 *o, *71 *7) .76 .74 *64 074,

1 3 * 75 *6-6 -. 6 Is7 1 *16 *74 *b5 *75 -90 ",1 *74 t64 *91'4 I *67 *b; -1! *71 *72 *69 * 15 "AC ".5 -74 *69 *65*5 f 69 Is*76L **fl *6" *70 *74 *97 *7 *84 - y -73 *79 *979*10 *79 *< 79 *6,4 067 . 79

'.. t% 4.746 c .7,7 9).19' 7.422 6.2119 6,3 4 7,647 I.1 1 7.799 8.281 .4.15n I 6. LIlITTAL 7-jU ( C

6 51; *94 q97 626 592 5.5 r99 Sob 5 74f 56 f to' 6 1,6

N'C771C * 136561o "N LE-3 THAN FULL MC979,3N (Ai LLAST 07*6 DAY LESS 1144( 24 0*5)

tI,

GLowAL CLIMATOLOUT BkANCH EXTRLME VALUES OF MINIMUM TLMPCkATURCUSAF[TAC (FROM DAILY OoSEPVATINS)

AIR bEATHA S.ERVICZ/MAC

STATICS NUMLR: 724916 STATiON .A.IE: FT OPO/FRITZSLHL AAF CA P0L9O1 OF kCOO: b6-TU, 73-o6

-P-O-N--9-5- ALLY

*At I JAN FEO MAR APP MAY JuN JUL AUG SLP OLT 40V tC MUNTHo

SI*40 43 47 MA 46 46 38 35 2961 27 3 35 31: 41 46 4. 51 45 34 31 29 272 27 2" 33 3Q 47 5 3 J 4t, 47 42 31 79 N

f3 Z 3 37 33 37 39 40 47 46 48 39 35 32 264 I 27 .1R 29 34 40 45 M 7 45 44 41 2e 31 2A5 29 2Q 35 37 38 44 43 49 43 39 36 27 2d

60 26 3 27 3' 42 4z Mo 45 43 35 34 26 2.

61 31 33 32 36E 38 46 41 46b 48 41 14 262uRd 26 38 34 33 39 42 48 47 39 f3 34 16 2

69 30 33 34 35 38 43 49 45 -45 39 34 3: 3

7, Z8 33 34 35 40 45 . 45 36 39 36 .34 2*

73 *36 *3t *37 *36 *45 AM7 *q7 *50 *45 *4C *35 *36 .3

74 I *35 *3C *34 *40 *44 #4P *50 *44 *49 *45 *59 * 33 .317! *26 *33 t33 *37 *43 *43 *Mb *46 -47 *36 *36 -,2 .7

76 I *30 *35. $*34 *38 *49 *49 *ol *53 *S,1 $6.4 *34 *42 *!377 *29 *" .31 *42 *47 *49 *b3 t 51 *51 -46 *44 4 9 $25

7d * 36 $43 -4 7 W(4 *48 *53 *t.5 *4? *44 $62 *31 *72q27 I *26 *35 *44 *4? *4s *50 *52 *57 $5p *40 *3 - 31 42.J *35 *3L -39 *39 *49 *49 *52 *57 *4 9 41 *35 -I . I

0 1 *37 *4 1 4 C' *4] *49 *47 *53 *46 *40 *4 4 1 -31

82 *32 *33 -39 *37 *45 *49 *h1 *5 *4Q *43 *3. *37 -3:

-3 *33 *39 $43 *41 *45 *53 *01 *55 *oS *49 *39 -3S *3.)04 *35 *35 '41 *39 *42 *47 *54 *56 *47 *44 *37 . 3 *7..95 *32 *35 *36 $43 *46 *49 *33 51 *47 *.4 *3 .21 .!0

A6 *38 *33 *47 *36 *37 *43

..................................................................................................................................................ML5A1 I 7.3 31.7 32.b 36.1 S9.5 44.1 47.S 4f,.6 43.7 3.2 33.5 2t.5 2..3s.n I 2.111 4.165 2.133 1.967 1.369 2.119 7.4b4 1.963 3.31 2.9*O 2.4b4 2.11 .Lb:

TOTAL OdS I 561 577 9 597 6,6 593 505 C44 59 4 974 5o !Z3 6b6,

NOTES * (BASL Or1 LfS THAN FULL MONTHSPA (A! LLAST ONL vAT LESS TJuAN .4 OS)

t----- w r - v---

GLG3AL CLIMATOLOGY ;RANCHUL'AFz.TAC MEANS AND STANDARD DEVIATIONSA' CATHER SERVICE/MAC

LRY-PUL TEMPERATURES DEG F FROM HOURLY OBSERVATION'S

7249 6 Fi CRC/FRTTZSCHE AAF CA 76-a6

STAHON STATION NAME YEARS

)RS , 5 1 JAN FEB MAR APR MAY JUN JUL. AUG, SEP. OCT NOV. DEC ANNUAL

MEAN 54. 4f6.a 46.6 50.9 53 . 57. f 58 . 58.? 58.J 53.6 47.7 '4.b r2- SD o.2 .6 6.349 5.262 4.6'5 3.73s 3.391 3.561 3.161 4.34U 5.277 6.375 6.47P 7.2

TOTAL OBS 6. 568 b47 621 734 733 748 780 722 742 536 530 " 7982,

MEAN 30.4 53.1 55.9" 58.4 59.8 61. 62.9 64.0 66.0 62. 55.9 C*9" 58.50I S 6 D .375 5.8 2 4.S94 5.326 4 .735: 4.43U 5.1531 4.61? 6.32C0 6.489 6.3901 6.074 7.49

TOTAL OBS 7" 4 737 813 769 786 780 805i a4[- 777 815 7451 758 Q43i

MEAN 1 57.8' 59.3 5 9.4' 63 .5' 61.2' 63.5 64.8 i 5.9768.1 66.2 62.5 58.9 6 2&I S2~ Do 5.4 7 5.189 5.(L,19 5.G34 3.927 3.446 3.724 3.6661 5.536 6.516 6.219 5.554 5.96

TOTALOS 7 -,' 738 613 7P9' 78b 78U 83? 840 717 813 744 749 043

MEAN 57.5 58.3 58.0 5SU.E 5 9.87 7y 6344Y6.-376. 58 .2

$-17 so 5.2 7 4.522 4.442 4.154 3.e3& 3o426 3.6631 3.649 4.440 5.412 5.215 5.369 5.3TOTAL OBS 7 7o 685 762 7341 688_ 68689 722 667 690 688 650 , 39MEAN "U.S '3.6+ s.s F65- 5-9. 61.11 61.9 62.7 59.5 54.8 52.3 57.1

-2 s 4.4_b 4.022 3.977 3.8U9! 3.480 3.084! 3.7121 3.351 3.52Z' 4.282 5.u57' 5.25, 5.43d

TOTAL Otis S -:4 52- o 0 9 573 5 4il 53 1 53 & 576 , 518 52- f 531 379 64'1

MEN 4 45. sN gg 7259.6 63.2i 60.6 56.5 51.3 46.8 -31-23 so 4.991 4.620 4.286 3.41$ 2.925 2.586 3.447 3.06Z 3 .14i 4o218 5.333 5.895 5.8C

TOTAL 085 9 489 572 527, 4111 40G 352! 376 337 362 456 333 514

MEAN--

S D

TOTAL OBS

MEAN -

SDTOTAL OBS

MEAN 64. 05. .5 5796. 62 .0 6.9' 6 4 . L 60.9 56.1 53.0 58.0

--55- I' 5,. - ------

ALL 7 9 oA 50 sD 7.4851 6.870 5.938! 5.b97 4.1 4.360i 4. 700 4.!24 6.C99 7.182 7.663 7.749 7.294

HOURS 669 .8,763 .4 .9

TOTAL OBS 4231 3737' 4216 40 31 3945, 39221 3937T 43341 3798i 39491 3702 3399 46795

USAF ETAC "ORM 0-89-5 (OL A)OCT 75

Gt.FAL CLIMATOLOGY BkANCH

J'AFETAC MEANS AND STANDARD DEVIATIONS,,,. AiR wEATtiER SERVICE/MAC

6ET-BULB TEMPERATURES DEG F FROM HOURLY OBSERVATIGNS

7?4916 FT ORD/FKITZSCHE AAF CA 76-86

SrArON STATION NAME YEARS

1HRS L S T JAN FEB MAR APR MAY JUN. JUL AUG SEP OCT NOV DEC ANNUAL

MEAN 41.3 43.5 45.7 47.6 5. .1. 53.4 54.8 55.6 54.9 50.6 44.6 41.4 49.SD L.4E7 6.274 5.Lt46 4.2. >8 3.252 2.582 2.462 2.608 3.943 5.113 6.242 6.410 6.66

TOTAL OBS b J 56 6, 47 7 1. 71. ...4. .733 7 4 i 780 722 742 536 53 798]

MEAN 46.4 49.0 5-..9 52.3 53.7 56.2 t,7.9 58.8 59.8 56.7 5J.7 46.5 '3.-i1 SD S,.6 4 5.177 4.15-i 3.932 3.2233 2.891 2.925 3. 44 3.522 4.455 5.302 5.791 6.17j

- TOTAL OBS 7'" 737 b13 7E9 7R. 780 als5 84U 777 815 745 758 943

MEAN ,1.1' 52.7 52.9 53. 54.5 57.1 -8.7 59.6 60.7; 58.6 54.4 51.b 55.1--.4, SD 4.4 2 4.513 3.942 3.567 2.792 2.351 2.279 2.416 2.921 3.795 4.286 4.455 4.79"

TOTAL OS 7,' 738 C13 789 786 780 827 84q T7 7 813 744 749 943:

MEAN Z .- ~2.4 5 2.2Z 52.6 53.7- 56-. 5 8.1' 59.0 -59.8 -57.2 5-3.6 51.2 54.•-j SD 4. '4Z 4.121 3.561 3.1441 2.7F9' 2.284 2.145 2.377 2.6603 3.324 4.079 4.273 4.49.

TOTALoS 785 66b 76Z 73 4 6,68_ 681 68 - 724 667 69J 684 65. 839

MEAN 7. .497.i %. 50. 51.o 54.6 56.4 T.4 57.9 54.a 56.5 47.2 r.S-" S 4 .3 1 4.18 '.790 3.136 e.74 2.136 2.107 2.325 2.543 3.596 4.819 5.101 4.96

TOTAL OBS ' '-4 52 U 6 9 5 73 5 41 537 536 57 6 51 527 5 31 _ 379 640 11

MEAN 45.L 47.4 4C.5 4.• 50. 53.4 55.0 56 .5 S6.6- 52.4 47.8i 44.6 %.1-23 S D . 35 4.b48 4.243 3.197 2.7981 2.123 2.057 2.354 3.167 4.127 5.323 5.905 5.bJ

TOTAL 085 52J. 489 572, 527 11 406 352' 376 337 362 458 333 5145

MEAN

SD

TOTAL OBS

MEAN

SD

TOTAL OBS

AL MEAN 47-1; 49.4 5C.-3 5-1.1 52. 5.44 57.1, S8 . 58.$ 55.4 50.7 47.6 2.ALL

HOURS SD b.'.6 5.800 4.763 4.1611 3.42.$ 2.863 2.790 2.969 3.83$ 5.031 5.969 6.406 5.q9TOTAL 0S I13 J" 3737 4216- 4-33 3945 392Z 3937t 13 4

, 3798 3949 370Z 3399 46795

USAF ETAC FOr 0-9-5 (OL A)OCT 75

oLCAL CLIMATOLOGY IkANCH- AFETAC MEANS AND STANDARD DEVIATIONSA ",,.CATiER SE VICE/MAC

DEW-POINT TEMPERATURES DEG F FROM HOURLY OBSERVATIONS

,249.6 FT ORD/FRITZSCHE AAF CA 76-86

STATION STATION NAME YARS

HRS L S T JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

MEAN 37, 40.5 42.6 44.3 4b.7 5C.4 F2.4 53.1 52.4 47.8 41.1 37.4 46.6-_ SD 7,19. i.411 6.128 5.C74 4.275 2.988 2.562 3.1C6 4.701 6.145 7.495 7.941 7.743

TOTAL ORS - S 68 647 621 731 733 748 780 722 742 536 53." 7981

MEAN - 42.11 45." 4i.2 4L .7 46.3 51.7" 53.9- 54.9 55.3" 52.0 45.b" 41. - 4 8.71 SD 6.52 6.226 5.654 5.2Y7 4.37J 3.084 2.868 3.458 4.356 5.461 6.928 7.696 7..71

TOTAL 08S 74 737 813 79 756 780 805 840 777 815 745 75b 9439

MEAN S4.' 46.6' 4b6.9" 47.2" 4 .6' F2 .0 4.2 55.0 -55.4- 52.7 47.1' 44.1 49.6

1-1 4 SO 6.449 b.60C 5.60C 4.942 3.937 2.914 2.713 3.18 4.539 5.216 .833 7.834 6.5b6ITOTAL ORS 7f 5 738 d13 769 7%, 780 807 840 777 813 744 749 9431

MEAN L4 .. E 46.8 46.7 46.9 48.2 51 . 53.7* 54.8 55.1 5 2.0' 47.6' 44. 493

5-7 so b.4 7' b.104 5.131 4.320 3.9:7 2.8C61 2.553 2.861 3.996 4.835 6.243 7.382 6.167

TOTALOS 776 685 762 7-24 23 b86 689 722 667 6 9 688 65. q399

MEAN 42." 45.6 46.1 45.8 47.1 53.5 52.6 53.8 54. 350.8 46.3 41.5 48.2

-2' SD o,.11, 5.895 5.113 4.255 4.172 2.871) 2.732 2.836 4.111 4.952 6.247 8.02, 5.275]TOTAL 0RS 5 - $23 639 573 .4. 537 536 576 516 527 531 375 C-4,: a

MEAN 41.1" 43.9' 45.J" 44.7 40.3 50.1 2.4' 53.5 53.2 48.7 44.1' 40.1" 46.511-27 SO 6.63 o.409 5.511 4.333 4.. '2 2.962 2.769 2.795 4.997 5.714 6.696 8.294 6,64b,

TOTAL OBS 322 489 572 $217 4I 406 352, 376 ! 337 362 458_ 333 5145

MEAN

S D

TOTAL ORS

MEAN

sD

-TOTAL 085

MEAN e12 .3 44.9 45.7 4f.1 47.7 51.1 53.3 54.3, 54.4 50.9 45.5 41.9 46.2

HOURS SD b.93 o.778 5.714 4.h'3 4.241 3.017 2.810i13.171 4.573 5.714 7.074 .170 6.932TOTAL ORS 11O3 3737 4216 4023 3.'v4b 3922, 39371 4134 3798 3949 37C2 3399 46795

USAF ETAC FOR 0-89-5 1OL A)OCT 75

'.L& AL CLIMATOLOGY RANCHU"A"ETAC RELATIVE HUMIDITYA'. 4EATH-ER SERVICL/MAc

7249 6 FT OkO/rR.ITZSCHE AAF CA 77-86 JANSTATION .... . t AMC PERIO0 .T.

CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE(FROM HOURLY OBSERVATIONS)

HOJRS PERCENTAGE FREQUENCY Of RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH - RELATIVE NO OF

(lI S T 10% 20 301. 40% 50% 60% 70- 80 90-- HUMIDITY OES

JAN U- '" _ __,_ I

.llO. 2 1CO.0 99.8 97.6 76.1 43.1 16.2 79.5 623__ io F ) ... ...-- -. - ______ . 99. 176 i'! . . .

9-1:1 .-. 7 10. u Ijo.2 99.1 9b. 87.4 64.1 28.8 8.2 74.2 794

1.-14 1&.C 09.9 97.7 92.7 81.6 58..C 31.9 9.2 2.6 63.1 795

- 1 1 .r. 99.3 97.04 9z.5 82.1 60.4 35.6 11.1 3.8 63.', 738

"-2. 17)I. -1, J .L 99.6 98.4 94.0 93.4 1 6C.5 29.4 10.5 73.1 554

'1-23 lCr.O 'I .C 99.8 99.2 98.3 9C.8 65.5 36.6 17.8 76.6 522

711 ~ 7 _________ ___________________ ______ _7_1_7__ __2_

TOTALS I 99.9 99.1 L97.0 92.0 79.6 55.6 26.4 17.2 71.7 4U23- - _ -- 1 1- C_ _ _ _ _ _ _ _ _ c _

USAFETAC 6 0-87-5 fOL A)

GLJRAL CLIMATOLOGY BRANCHUAFE.TC RELATIVE HUMIDITYAl, TATHER SERVICE/MAC

724916 FT ORD/FRITZSCHE AAF CA 77-86 FEBTRTION STATION NAME PERIOD ONIT-


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH ,RELATIVE NO Of( S T) 1 0% 20% 30% A4 50%. 60% 70 % 80 90 HUMIDITY 0(5

!J6-c i J3.- i-o f, I _ _. _ _io:,_ 99.5 97.7 8 1 .0 5.,5 25.7 S1.6 566

39-11 1 '. C 1 00.u 130'. 99. 2 96.5 86.7 66.6 29.9 11.5 74.6 737

12-14 , 103.0 98.b 93.6 82.4 62.3 35. 11.2 2. 64, 738

S_ 1517 1JO.O llc0.U 99.6 196.5 j8.C 69.1 40.3 13.3 3.5 66.b 685

____5-?2LI :.0 100. 0 1~0 . r 9 9.2 96.7 81 6 2. 3 31.3 9.8 74.5 1 2

___ 012 2f1. u 130.6 10j." 99.2 93.3 72.6 42.9 15.7 TO8.3 489______ ____________ I______- _____ _____ _______ _____

TOTALS 99-7 96.1 93.7 92.7 9.6 29.9 11.4 73.4 1737

USA ETAC I 0-87-5 (OL A)

GLWIAL CLIMATOLOGY BRANCHJcAFETAC RELATIVE HUMIDITYAIR WEATHER SERVICE/MAC

1249.6 FT ORD/FRITZSCHE AAF CA 77-86 MARSTATION STATION NAME PERIOD


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH .. . . . . RELATIVE No Of

(L S T) 10% 20% 30. 40% 50% 60%, 70> 80- 90 HUMIDITY OIS

1 -ro 100.0 100.: I100.n 10.o 98.8 94.1 [ 81.9 51 .b 21.6 8-.5 647

11!---17-0 1cL.u 99.9 98.2 90.7 78.5 54.1 25.7 6.2 11.2 813

.-. 1 .L. 98.s 9 . 86.5 65.9 32.6 9.8 1.7 64.7 813

1"', - i o00.0 99.9 98.b 97.1 91.6 74.1 38.1 11.9 2.2 67.1 76._ __ _ _ _ ___ _

1 C- 130.U IC-.0 99.3 97.4 89.7 63.1 i 25.a 5.1 73.9 b'19!-2. 10 C.O 0.0 1120.o 99.7 98.6 9.9 75.0 40.6 11.5 77.9 572

_ _ _ _9 98.6

USAFETAC o 0.87.5 (OL A)

GLobAL CLIMATOLO6Y 3BRANCH RELATIVEi AFETAC HUMIDITYk!1 , AEATHER SI'RVICE./,AC

7349.6 FT COeC/FtfTZSCHE AAF CA 77-86 APRS A TON- S'TI. 0N .A TPERIOD 0.-


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH ---- -- RELATIVE NO OFS T) Io. 20 ' 30% 40% 50%1 60% 70- 80 90 ' HUMIDITY OBS

A C,

-. o 1.0.t{'?0.0 I0o.c 99.8 - 98.7 95.2 79. 43.3 11.6 78.5 621

5-11 1-].C 99.6 - 98.9 9b.5 89.6 69.2 38.9 11.9 2.7 66 . 789

S 12- ' . I 9.9 95.4 &3., 58.0 .7C 6 .u .6 62.c 78 S

- :-17 I 9 99.9 978 1 9q.5 r67.6 34.Z 8.3 1.1 65.6 734

- - 2'. 1. 1_ l c] II Lo. 9 9.,c,; 96.2 83.b 56.7 17.b 3.1 71.4 573

.122 1 .1'J '& ': .7 98. 9>' .4 67.7 29 .J 7 .C 7 5.: Sj7' I l

.. .. . .. . . 19. 4. 4 L 3

TOTALS u2.C " 9 . 9 99.6 98.1 92.9 77.9 50.6 19. __ _ 4. ""

USAFETAC F 0.875 )OL A}

M I . .. . .. ..... .. .. ..... ... .A )

6L(.,AL CLI'*ATOLOGY 3RANCHU? A-FTAC RELATIVE HUMIDITYAft , .ATHER SERVICEi/MAC

'40E. FT OR/rRITZSCHE AAF CA 77-86 MAYSTATION STATION NAME PERIOD AOT4


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH (L- S T) IRELATIVE NO OF

ItS T) 10% 20 30, 40°° 50%c 60% 70 80 90- HUMIDITY OBS

MAY 1 - 0

I

I I/ -- __

A -C6 cItI.L, 1uo.C 100. 99.7 98.9 I92.9 74.9 41.4 14.u 77.8 734

o-11 1j1O 10.o 99. A 9b.4 90.6 73.2 40.3 11.3 1.5 67. 786

12-14 l0oo.n 100.0 99.2 97.7 90.2 62.7 30.0 2.8 64.2 786

i-17 160.0 190.0 100.C 98.3 91.1 67.7 39.5 6.8 .7 66.4 8

ie-2. 1.0 1,10.G 3AC 99.1 94.8 79.6 53.1 22.b 5.7 71.4 54

Il-2 1 Il.C10.0 13iC.r 99.6 98.3 86.3 63.5 32.4 8.5 74.9 1 411

--

.. ... -Ii __I --iI i

TOTALS AC 1G0.C 99.7 98.5 94." 77.4 5 .2 19.6 5.1 70.3 3945

USAFETAC FOR 0-87-5 lOL A)

3L,qAL CLIMATOLOGY BkANCH RELATIVE HUMIDITYL A! LTAC

A', rATHER SERVICI/MAC

49.- FT OkDf/FRITZSCHE AAF CA 77-86 JUNSTATION STATION NAME PERIOD ONT


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTAL

MONTH T RELATIVE NO OF(L S T) 10% 20% 30% I 40% 50% 60% 70% 0- 90 HUMIDITY 015

JUN .0-c ~ ________+- _ _ _

6 a 1.J0 100 U L 10C.0 99.5 m 97.8 79.il 4i.7 11.6 78.9 733

' -I1 1C0.. 1100.0 99.9 99.2 97.9 585..1 45.3 11.7 1.4 70.L 78Q

12-14 10 "1 o0 "'o. , 99.6 99.4 98.1 76.7 27.3 3.2 .4 66.4 780

i5-17 103.0 100.0 100.G 99.6 97.2 I 76.8 36. 4 5.7 .3 67.7 686

,.-2 10.0 100.0 99.8 99.4 98.7 L90.9 59.8 I19.6 1.3 73.1 537

121-23 L .n 0o.0 1OO.c 99.5 99.5 *98.G 71.4 40.4 4 4.9 77.4 406

TOTALS I03.G IGO .0 99.9 99.5 98.5 87.6 53.2 20.4 3.2 72.3 -3922

USAFETAC o 0-87-5 (OL A)

GLOcAL CLIMATOLOGY BRANCHU -AFETAC RELATIVE HUMIDITYAI;i .iEATHER SERVICE/MAC

7109.L6 FTORD/FRITZSCHE AAF CA 76-85 JULSTATION STATION NAME PERIOD MOW.


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH I0 I 9 RELATIVE NO OFONTH (L .T) _0% 20'. 30. A 40%. 50-. 60% 1 70'- 1 80, 90- HUMIDITY OBS

JILI O I ____ * IJUL c, -t

-.6-3d I c:G. i r.. ,.9 99.6 97.9 k8.5 51.b 2:-2 82.1 748

2.-11 'I).C 100.L. 99.8 99.1 96.9 88.4 57.3 24.1 7.5 73.4 805

i12-14 loa.c i10o.c 99.9 99.6 97.6 82.5 38.5 12.r-, .9 68.9 807

15-17 1 jo. 1 00.0 IOJ. C 99.6 97.2 83.5 47.3 12.3 .9 70.1 689

I--2J 11U0.0 130. L; 99.4 98.9 97.4 91.c 2 67.4 23.9 2.4 74.2 536

.Z 1-23 100.0 1'-O .L 99.4 99.1 98.0 95.5 77.8 3S.5 6.8 77.7 352

TOTALS : o 100.01 99.8 99.4 9?.8 89.8 62.8 2b.6 6.5 74.4 39371

USAFETAC 6 0-87-5 (OL A)

-JUL ~

GLUBAL CLIMATOLOGY 9RANCH RELATIVEU %- AFETAC HUMIDITYA' wEATHER SERVICE/MAC

724916 FT ORD/FRITZSCHE AAF CA 76-85 AUGSTATfON STATION NAME PERIOD i6,N TH


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH r - RELATIVE NO Of

T 0 20 30 40%. 50% I 60% 70'. 80% 90% 1 HUMIDITY 085.

AUC -i, _ ___ __ __ _ __ _ _ ! _ __ __ _

6- J 3 ico. loo.c lOC.0 1000l , 99.2 87.8 51.L 18.2 81. 787

I 9-i1 1LO.) 130.U 100.0 99.6 97.7 85.1 55.4 22.9 7.3 72.9 840

1-14 0100.0 00.7 99.8 96.2 8C.2 35.7 12.6 1.4 68.5 84J

11_5-17 !7 1 00.0 1OO. 1011.0 98.8 85.0 46.4 16.5 1.1 70.8 722

!_0)o 1-22 1 00.0 o00.3 lOi.u 99.8 92.9 62.3 30.6 4.9 75.1 576

"1 -23 133.0 100.L 100.0 100.0 100.0 98.7 76.6 39.6 9.6 78.7 376

TOTALS 100.0 100.0 100.0 99.9 98.8 90.2 60.7 28.9 7.1 74.7 4134

USAtTAC 64 0.87.5 (OL A)

GLOBAL CLIMATOLOGY BRANCHUSAFETAC RELATIVE HUMIDITYAUR wEATHER SERVICE/MAC

7249i6 FT ORD/FRITZSCHE AAF CA 71-85 SEPSTATION STATION NAME PERIOD


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH r I RELATIVE NO Of

(LST.) 10% 20% 30% 40% 50% 60% I 70% e80% 90°. HUMIDITY OlS.

)LP 00-02 ___

• 333-05 '

L6-08 i.0.0 11O0.0 100.0 99.9 98.8 96.1 85.9 57.5 21.6 82.2 722

19-11 1!2.2 19L.J 98.1 94.9 90.5 76.8 52.4 24.1 5.0 70.3 777

12-14 1;0.o 99.1 96.9 94.2 87.3 7C.8 38.1 12.4 8 65.7 777

15-17 I-l. 100.0 98.7 9 t.9 92.1 76.6 45.7 16.8 1.2 68.8 667

15-2-; 1J.0 100.L 99.6 97.S 95.8 86.1 62.9 30.9 7.9 74.3 518'

'1-23 1.0 100.0 1 ... 9,.5 95.5 91.7 73.6 10.9 13.1 77.4 337

TOTALS !0.0 99.9 98.9 97.0 93.3 83.0 59.8 30.4 8.3 73.1 3798

USAFETAC f 0-87-5 (OL A)

ULOBAL CLIMATOLOGY BRANCH HUMIDITYJ 'AFETAC RELATIVEAlH .iEATHER SERVICE/MAC

724916 FT ORC/rRITZSCHE AAF CA 76-85 OCTSTATION STATHON NAMIE PERIOD .0WH


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTAL

MONTH RELATIVE NO OF(L S T) 10% 20% 30'% 1 40°° 50% ] 60% 70% 80% 90, HUMIDITY ORS

I __ ____

-.6 -C8 I co.c I cu.uJ 100 A ' 99.9 98. 9 9 84#4 55.7 17.1 1 81.1 742

I1-9 ~ OJt 99.9. 98.2749.9 8445.4__________ _

9-11 '1, 2.0 100j 99. 951 8.2 7. 52.4 24.7 7. G AC1 815,

12- 14 100.0 99.6 95.9 95,.8 83.8 63.1 31.1 9.2 1 .15 i63.7 813

. 5-17 1. 10a.: 98.4 93.2 86.7 74.6 45.7 13.8 2.3 57.5 b9.

A -2 1L.0 100.L 10. C 98.5 94.5 ,5.5 65.7 28.b 5.9 74. G 527

. :1-23 130.0 100.U 100.L 99.4 96.1 86.5 7.7 36o5 8.8 75.8 36L

1,TOTALS !'.. 99.9 9,. 9 96.2 91.3 79.6 58.3 28.1 608 7 .99

USAFETAC FO 0--5 (L A)JUL 64 0

- !.uAL CLIMATOLOGY ;RANCHJ'4 ETAC RELATIVE HUMIDITYAhi .EATHER SERVICE/MAC

T49i6 FT ORD/FRITZSCHE AAF CA 76-85 NOVSTATION STATtON NAME KRIOO


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH RELATIVE NO Of

(L ST) 10% 20% 30°. 401. 50% 60% 70-. 80 90 HUMIDITY 085

NOV , 0-02 1 __.

6-C8 112:3.0 110.0 01o0. 99.6 98.3 93.1 74.6 42.5 17.2 78.5 536

9 10 L,. 100. 2 99.3 95.6 87.8 73.4 51.8 26. 9.1 70.2 745

liz-1 .103.0 99.2 93.4 86.2 71.1 so.9 28.4 8.5 1 .2 9.7 744

15-17 11 .C 99.6 97.4 93.2 83.9 66.7 39.4 11.5 3.2 65.3 68I

__18-20 11 D.L 100U.0 10.C 9 r.4 95.1 54.6 65.2 26.7 s3 73.v 531

___1-23 lUl.0 100.U laO.L IOc.o 98.3 9.J86 73.1 37.3 12.q 77.1 458

_ _- _ __ - 1- *

TOTALS j . 09.8 98.4 95.7 89.1 76.6 55.4 25.4 8.7 j 7.b ,77)2

USAFETAC Pol 0.87.5 (OL A)

LJAL CLI14ATCLOGY BIRANCHTAFETAC RELATIVE HUMIDITY

Al, ,FAT ER SERVICE/MAC

72,49-6 FI 0C4/FRITLSCHP AAF CA 76-85 Lo[C$ ATrON STATION NAME PERIOD Mow.


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH RELATIVE NO OFMiiST t o. 20

o, 30°. 40' 50% 60'. 1 70%. 80°. 90c% HUMIDITY 08S.

. -Cd 1C'.C 1ula.O 1__._ 99.8 97.2 88.1 1 72.1 1 41.7 il.9 76.9 53' -c "- ' ° " .c ' - - - I " L I

9-1i 1c2.C TO.C 99.7 96.8 88.9 76.9 61.1 27.3 6.7 71.6 758

12-14 10 0, 99.6 93.1 82.2 71.8 57.8 35.4 9.3 .8 60.6 74915-17 10.0 99.8 94.6 86.2 76.5 63.2 41.7 12.2 _ 1._ 63.3 656

-20_- 1.' lCG.C 98.7 92.1 79.4 69.7 57.3 27.2 4.5 68. , 379

1- 23 1J,-,.0 1100.3 99.1 97.3 91.0 79.3 62.2 34.8 1 .2 73 . 3___3

_ _ ___ I....

TOTALS ]k 3. ) 99.9 97.1 92,.€ 84.1 72.5 55.{ 25.4 5.9 69.1 33991

USAPETAC " 0.87.5 (OL A)

3 L0 AL CLIMATOLOGY BRANCH RELATIVE HUMIDITYd C AFETACA 'r. IEATHER SFRVICE/MAC

7249 6 FT 0RD/FRITZSCHE AAF CA 76-86 ALLSTATION STATION NAME PERIOD O.T.


HOURS PERCENTAGE FREQUENCY OF RELATIVE HUMIDITY GREATER THAN MEAN TOTALMONTH I Ii)3% 0% 5% 8% rRELATIVE HO Of

T) .10% 20% 130. 40% so% 60. 70% 80% 90% HUMIDITY 085.c 9 7 E, 92 4 l .2 7._.___. 'ALL .'7., i9.9 99.1 97.6 92.0 79.6 55.6 26. 1.).2 71.7 '4C23

FE3 I_ i . l.c_ j 99.7 98.1 93.7 82.7 59.6 29.9 11.4 73.4 3737

i .;o 99.5 98.2 93.9 62.9 57.5 27.4 8.1 72.6 4216

AP,(, 100.0 99.9 99.6 98.1 92.9 77.9 50.6 19.4 4.4 70.0 4033

_y '7. ,0 100.G 99.7 98.5 94.0 77.4 50.2 19.6 5.1 70.3 3945

JUN 103.0 100 . 99.9 99.5 98.5 87.6 53.2 20.4 3.2 72.3 922

JUL ___ :O.o 100. 99.8 99.4 97.8 89.8 62.8 26.6 6.5 74.4 3937

AUi "L-c.o 100.0 100.0 99.9 98.6 90.2 60.7 28.9 7.1 74.7 4134

cp 1:0.Io 99.9 98.9 97.u 93.3 83.0 59.8 30.4 8.3 73.1 3798

C0T i0o. 99.9 98.9 9b.2 91.3 79.6 58.3 28.1 6.8 72.0 39,9

1ID('.0 99.6 98.4 95.7 89.1 76.6 55.4 25.4 8.7 70.6 1 370.2

u DFC 1 2.0 99.9 97.5 92.4 84.1 72.5 55.0 25.4 5.9 69.1 3399

TOTALS 1 0.0 99.9 99.3 97.5 93.3 81.7 56.6 25.7 7.1 72.0 1 46795

USAFETAC P 0-87-5 (OL A)

OPERATING LOCATION "A"USAFETAC, ASHEVILLE NC

PART si PRESSURE SUMMARY

Presented in tui part are two tables giving thd means, stands4 deyiktionb and toti1 number a obi6rvativaof station pressure end sea-level pressure by month and 6nu&l for th6 local hourly obervkltions correspondingto the eight 3-hourly synoptic times CT. The Same computations Ar Also provided at the bottod of tha pifor all hours combined. All years of data available are conbind& in both of this& tablesj although the ovdrallperiod is limited by service as indicated below.

NOTES: Station pressure not reported for all services until late in 1945.Station pressure reported only at 6-hourly times for Air Force stations tros Jan 64 - Jul 65.MEA5 stations do not report Sea-level pressure. 5

1. Station pressure is presented in the table in inches of aercury.

2. Sea-level pressure Is presented in millibars.

Provided belo is a scale to convert station pressure valuei i Inch#l o metctry or aillibars to prosbuti-altitude in 1000's of feet. This scale is an enlarged model of the r6baurrI-iltitude seale in th# mitheonjidMeteorological Tables.

P R E S S U R E A L T I T U D E II 0 0 OS P T)

Ai t ai ii , II Iii ia ai1IhI440~~ hI.I~tI~h*IhhII4I55ls.II5*pI~pII~s*.I....phnr - $- gi*p.1.. 4i&I. 1 1 lm 41hll i I ,I $fil l 1 't11if . aT, s..,,, r,,,|,...|....'...... .n' ... u. u * .. .. *"'"" ' * *.."1""""'1, *'' ....5*1 gI'|" ,5 s,,|," I,. , '

a AR 0 ME.T R I C P A E SS UR EJil ioo ISo 1le ISO 166 Ws logo Ils 0111,, .... "'"',0 . ... ' .... , .""'"'"""... "' "', .. Al. ... u.I pgal alamimo. o lmaa ldwila Ia fl.hi . AI i. 'i"f .... '""I "ii"i"i m"ia"":1'""

PRESSURt ALT I tUOI II OOO T.0

*$ j ,

L''AL CLIMATOLOGY BRANCH.", F,-TAC MEANS AND STANDARD DEVIATIONSAT -l .EATri-.R SERVICL/MAC

STATICN PRESSURE IN INCHES HG FROM HOUPLY OBSEPVATIONS

1Zq9t FT ORD/FRITZSCHE AAF CA 76-86

SA N

STATION NAME YEARS

-.ES I S T JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNU'AL

MEAN

S D

TOTAL OBS

MEAN

S D

TOTAL OBS

MEAN i29 .9229.91529.37129.89 29 .49-29.8379.88-29.82529.794-29.7U*29.928'29.956 29.667

s D .161 .168 .175 .1 9 L;89 ,.;81 .075 .373 .084 .090 .147 .146 .126TOTAL OBS e- 192 2 1 219 26L 259 26E 28J 259 z68 194 166 -796i

MEAN - .94729.949.9z*.9 9 9.9929.629.8489.8429.83929.bC829.89329.95229.971 29.892!SD .167 .178 .174 1'7 .L9 .079 .5751 .075 .082 .691 .141 .152 .133

TOTAL OBS 2 4 246 Z71 2t3 262 261 268 _28u6 259 272 49 2Z 14bI

MEAN j .8,5 29.906 29 7629.8 4d9.i'4929.843?9.831 9 .82298329 . 529.9C52

9.917

29.864

5 D .1T4 .175 .168 .1 4 ..- 8' .078, .375 .073i *J82 . No .139 .15c 1271TOTAL OB5 235 246 271 263 2621 260 2691 279, .259 271 248 249i 3142

MEAN .3 129.88229.850 9.-66--.833 9.82129.809 9.529.8389.89229.9--4 299.865 D .11 .175 .164 .12, --001 .0771 .076, .074, .86 .G94 .139 .147 .131

TOTAL O8S 2J. 246 27tS Z-57 213 213 2 1 222! 2C4 113 246 246 2bC7

MEAN -2-.8029.59 651 62 -39 9.799 9.79529.76C9.b4629.92329.941 29.845SD .1 's .179 .166 .101 L,-7 .077 .077, 0T4 .086 .L193 .150 .137 .130

TOTAL 0B5 1 ?o 164 194 182 1lOW 179 1-- -- 79 192 -17 3, 1 75 170 119. ?UR3MEAN 2 . .9 1329. 9b29. 75 9.8869. 53 29.83.87298.96.78 -9 86629. 275 .962 29.b66

SD .1 2 .184 .167 .105 . ,89 .077 -0781 .073 .6s88 .u96 .155 .143 .132TOTAL 085 1'4 163 191 1f1 179 179 1581 1 8 152 156 146 107 1954

MEAN 120.90C129.9O40729.87Z 9.886 9.847 9.834 9.239.818 9. 7 ~9.63299T999 2.6ALL - 9 8 3- 32 . - . 12 . 3 '2 . 6

SD .I' .177 .170 .106 . L89 .079 .077 *0751 L8S .094 .145 .149 .131HOURS 5.**~.*TOTLOBS 3% 1257 1418 1365 1356! SU 50 132 6 1 3; 5 1255, 1141 159261

USAF ETAC FOR' 0-89-S (OL A)Oc

09 A

:ji ---AL CLIMATOLOGY TRAOCHL A -TAC MEANS AND STANDARD DEVIATIONSA i 4rATHE SFRVICEiPAC

-EA LLVLL PRESSUR. IN MBS FROM HOUPLY ObSERVATIONS

1?4916 FT CRC/IFITZSCHE AAF CA

5 T A '

I3

STATION NAME YEARS

HRS L S ) LAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

MEAN

S SD

TOTAL OBS

MEAN

SD

TOTAL OBS

MEAN ,l . -18.51C'17.2117.91,lt.3lJl6.31015.71GI5.61014.51017.11U19.11CI9.9-. 1017.ZSD 5.6'2 ",.705 5.-3d 3.7T. 2 ., 2Z00 2.525 2.452. 2.8PI 3.L44 4.977 4.951 4.25t

TOTAL OBS 7 192 220. 21' u. 259 268 280 259 268 19Q 16E 279L

MEAN I , 19.7"(, 19.b b16a18.1"1 Olt. .411, 1 b .8i1 I .4lTI b. 11i016.•11i015. )10 I?.a1019.9"1020.5 1[)17 .

TSOD 0 .5 U O.041 5.921 3. 3.1 2.743 2.55k 2.473 2.772 3.073 4.609 5.393 4.51!

TOTAL OBS 2 246. 27 k 2 3 2 2 260 268, 28Q Z5'9 27 Z49 2 Z.. 314

MEAN I17,11.1131l.11.1b21015.61C015.6101I4.21016.6l1018.31016.7 lb.sD 5.491 i.932 5.731 3.5i 1 .7 8 2.744! 2.56: 2.4201 2.763 3.L25 4.722 5.C71 4.21

TOTAL OBS 2 5 t. 246. 271_ 2b3 62 26. 269 28L - 259 271 247 249 - 714

MEAN 1-17. 1U17.S10,6.4!316.lICl 5.o;1015.41015.01014 .81J13.21016.DIUI 7.81JIB .2 1216.SD 5.3,1 5.959 5.578 3.43- 3.C'31 2.682 2.623 2.471 2.890 3.133 4.693 4.965 4.411

TOTAL OBS 2!4 246 270 2E6 !3 - 213,- 217 222 224 13 248 24b 6 -1

MEAN 17. 'lul7.51D18.4,116.o01S.71315.'1014. 1014.61U13.3ilOl6.

3l 1

8.2"i 5

9.4

IClb.

SD 391 b.286 5.671 3.45 , 2.g9tb 2.6531 2.613. 2.466 2.89(Y 3.132 5.058 4.672 4.3kTOTAL OBS . 1 164 i14 1.2 1r; 179 1791 192 173 175 17. 119 066

* EAN I 18.S11lS.11017.317IT.6;l01b.Sl0I.71I.3I014.910i4.1016.911 9 .0172.17I16.

s D 5,.414 t,.219 5.o98 3.5 9 .. 974 2.669 2.6531 2.395 2.94! 3.201 5.233 4.831 '4.47

TOTAL 085 1 1 14 1634 191, l F-1,~ 179 15 5kd 15- 146. 107 1954

MEAN ,5 ,155 65 ,5 , , ?T2 5 1 5. 162 ,0i2,9t ,ALL 1EA 11? 1016.31C17.1 10!7;61016.311015. 54 15 S.~ul 4. U 0 16.187C94 116

O5 765 3 3L 5 0 3.145 4.928' 5.040 4.417STOTAL0S 13 lJ 1257 1417, 136 1356 13501 1352 14221 13061 1355 1254 1141, 1592

USAF ETAC 'OM, 0-89-5 (OL A)OCT "5

DATE

.FILMED

i ~i a lifo a li1/j · staton staion o amelatitude onsuinary i1.o6itude1 fielo lev (ft) i call sin...

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