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ZLA Center Weather Service UnitWeather Impact Playbook (WIP)

June 6, 2006

2

ZLA WIP - June 6, 2006

Chapter 1

General WIP Organization andMaintenance

1.1 Table of Contents


4 CHAPTER 1. GENERAL WIP ORGANIZATION AND MAINTENANCE


Contents

1 General WIP Organization and Maintenance 31.1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 Review Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.2 Summary of Revisions . . . . . . . . . . . . . . . . . . . . . . . . . .9

2 Facility and NWS Management Contact Information 112.1 Air Route Traffic Control Center (ARTCC): Los Angeles, ZLA in Palmdale,CA112.2 Supporting Warning Forecast Office (WFO): Los Angeles Oxnard (LOX) 122.3 Supporting WFOs writing TAFs within the airspace . . . . . .. . . . 12

3 ARTCC Facility Structure 133.1 Traffic Management Unit (TMU) . . . . . . . . . . . . . . . . . . . .13

3.1.1 TMU Staff . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.1.2 ARTCC Airspace Map . . . . . . . . . . . . . . . . . . . . .14

3.2 TMU Position Weather Impacts . . . . . . . . . . . . . . . . . . . . .143.2.1 Supervisory - 91 . . . . . . . . . . . . . . . . . . . . . . . .143.2.2 Center Monitor Phoenix Time Based Metering - 41 . . . . . .153.2.3 LAX Time Based Metering - 61 . . . . . . . . . . . . . . . . .153.2.4 LAS Time Based Metering - 51 . . . . . . . . . . . . . . . . .153.2.5 Route Manager ESP - 71 . . . . . . . . . . . . . . . . . . . .153.2.6 Mission Coordinator Weather Coordinator - 87 . . . . . . .. 153.2.7 System Advocate - 81 . . . . . . . . . . . . . . . . . . . . . .16

3.3 Area A Sectors - Weather Impact . . . . . . . . . . . . . . . . . . . .173.4 Area B Sectors - Weather Impact . . . . . . . . . . . . . . . . . . . .183.5 Area C Sectors - Weather Impact . . . . . . . . . . . . . . . . . . . .193.6 Area D Sectors - Weather Impact . . . . . . . . . . . . . . . . . . . .203.7 Area E Sectors - Weather Impact . . . . . . . . . . . . . . . . . . . .213.8 Area F Sectors - Weather Impact . . . . . . . . . . . . . . . . . . . .223.9 TRACONs and Phone Contacts . . . . . . . . . . . . . . . . . . . . .233.10 FAA Towers and Phone Contacts . . . . . . . . . . . . . . . . . . . .24

4 Hub/Pacing Airports 254.1 Los Angeles (LAX) . . . . . . . . . . . . . . . . . . . . . . . . . . .25

4.1.1 LAX Times of Daily Arrival Departure Rushes . . . . . . . . .25


6 CONTENTS

4.1.2 LAX Airport Diagram . . . . . . . . . . . . . . . . . . . . . 264.1.3 LAX Significant Weather Criteria . . . . . . . . . . . . . . .274.1.4 LAX Climatology . . . . . . . . . . . . . . . . . . . . . . . . 284.1.5 LAX Arrival Fixes and Gates . . . . . . . . . . . . . . . . . .294.1.6 LAX Departure Fixes and Gates . . . . . . . . . . . . . . . .304.1.7 LAX Significant Weather for Arrival Departure Fixes and Gates 30

4.2 Las Vegas (LAS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .324.2.1 LAS Times of Daily Arrival Departure Rushes . . . . . . . . .324.2.2 LAS Airport Diagram . . . . . . . . . . . . . . . . . . . . . . 324.2.3 LAS Significant Weather Criteria . . . . . . . . . . . . . . . .334.2.4 LAS Climatology . . . . . . . . . . . . . . . . . . . . . . . .344.2.5 LAS Arrival Fixes and Gates . . . . . . . . . . . . . . . . . .354.2.6 LAS Departure Fixes and Gates . . . . . . . . . . . . . . . .364.2.7 LAS Significant Weather for Arrival Departure Fixes and Gates 37

4.3 San Diego (SAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . .384.3.1 SAN Times of Daily Arrival Departure Rushes . . . . . . . . .384.3.2 SAN Airport Diagram . . . . . . . . . . . . . . . . . . . . . 384.3.3 SAN Significant Weather Criteria . . . . . . . . . . . . . . .394.3.4 SAN Climatology . . . . . . . . . . . . . . . . . . . . . . . .394.3.5 SAN Arrival Fixes and Gates . . . . . . . . . . . . . . . . . .404.3.6 SAN Departure Fixes and Gates . . . . . . . . . . . . . . . .414.3.7 SAN Significant Weather for Arrival Departure Fixes and Gates 41

5 FAA Playbook Operations and CCFP 435.1 Support to Strategic Plan of Operations (SPO) Telcon . . .. . . . . . 435.2 Weather Impact to Internal Airports . . . . . . . . . . . . . . . . .. 435.3 Weather Impact to Outer Tier Airports . . . . . . . . . . . . . . . .. 445.4 Playbook and Other Regional Reroutes . . . . . . . . . . . . . . . .. 44

6 Special ARTCC Requirements 456.1 Quality Assurance Office Weather Support Requirements .. . . . . . 45

6.1.1 Operational Errors and Pilot Deviations . . . . . . . . . . .. 456.1.2 Aircraft Accidents . . . . . . . . . . . . . . . . . . . . . . . 45

6.2 Routine Briefings to the ARTCC and Other FAA Facilities . .. . . . . 456.2.1 ARTCC Verbal Briefings . . . . . . . . . . . . . . . . . . . .456.2.2 ZLA Southern California Telephone Conference Briefing . . . 466.2.3 Las Vegas TMU Telephone Conference Briefing . . . . . . . .46

6.3 ARTCC Written Briefings . . . . . . . . . . . . . . . . . . . . . . . .476.3.1 Los Angeles TMU Briefing Statement . . . . . . . . . . . . .476.3.2 Los Angeles OMIC Briefing Statement . . . . . . . . . . . . .476.3.3 PIREP Solicitation Forecast . . . . . . . . . . . . . . . . . .47

6.4 Special Event Briefings . . . . . . . . . . . . . . . . . . . . . . . . .486.5 Automated Flight Service Station (AFSS) Support . . . . . .. . . . . 486.6 Outreach Programs and Other Support to the FAA . . . . . . . . .. . 48


1.1. REVIEW RECORD 7

1.1 Review Record

All station personnel shall review the WIP at least annuallyand sign and date the re-view record sheet of the WIP. In addition, persons joining the staff shall review theWIP within 1 month after reporting on station. Major changesnoted in the Summaryof Revisions section of this document require staff the applicable changes, sign andinitial this review record sheet

ZLA CWSU -WIP REVIEW RECORD SHEETEMPLOYEE Date & Initial Date & Initial Date & Initial Date & InitialWalter Rogers

Cecil Ma

Gary Neumann

Michael Langevin


8 CONTENTS


1.2. SUMMARY OF REVISIONS 9

1.2 Summary of Revisions

Changes to this document fall under two revision categories, MAJOR andMINOR .Minor changes are items such as typo’s, telephone numbers, published times, etc. Ma-jor changes are those which cover new procedures, concepts or equipment. Minorchanges may be red lined on the printed version that resides in the CWSU operationsarea. These changes will be initialed by the MIC and noted in the Summary of Re-visions section of this manual. Major changes require all staff to read the applicablesection, signing and dating the review record sheet.

Date Originator Description


10 CONTENTS


Chapter 2

Facility and NWS ManagementContact Information

2.1 Air Route Traffic Control Center (ARTCC): LosAngeles, ZLA in Palmdale,CA

Position Name Contact Information

Air Traffic Manager Randy Parks 661-265-8201Assistant Air Traffic Manager Kevin Stark 661-265-8202Air Traffic Center Secretary Lindell Hamilton 661-265-8215Technical Operations Facility Manager Bob Bruns 661-265-8402Support Manager Quality Assurance Ron Emery 661-265-2449Support Manager Training Mike Lacefield 661-538-2430Logistics Officer Nancy Coultas 661-265-8494Flight Data Ken Brissenden 661-265-8223Security Officer Adrienne Jones (A.J) 661-265-8405Administrative Computer Support IRM Help Desk 661-538-8434


12CHAPTER 2. FACILITY AND NWS MANAGEMENT CONTACT

INFORMATION

2.2 Supporting Warning Forecast Office (WFO): LosAngeles Oxnard (LOX)


WFO Meteorologist in Charage (MIC) Mark Jackson 805-988-6615WFO Science Operations Officer (SOO) David Danielson 805-988-6615Regional Aviation Meteorologist (RAM) Scott Birch 801-524-4000ZLA CWSU Meteorologist in Charge (MIC) Walter Rogers 661-265-8340WFO Administrative Services Assistant(ASA)

Alice Carretero 805-988-6615

Electronics Systems Analyst (ESA) Gary Strickland 805-988-6629Information Technology Officer (ITO) Tom Fisher 805-988-6615Aviation Focal Point (AFP) Andrew Rorke 805-988-6620

2.3 Supporting WFOs writing TAFs within the airspace

WFO Name Office ID Forecaster Phone TAFs

Los Angeles Oxnard. CA LOX 805-988-6620 BUR, LAX, LGB, PMD, PRB, SBA, SBP,SMX, VNY, WJF

San Diego, CA SGX 858-675-8705 CRQ, ONT, PSP, SAN, SNA, TRMHanford, CA HNX 559-584-9521 BFL, FAT, MCELas Vegas, NV VEF 702-263-9750 BIH, DAG, DRA, EED, LAS ,VGTFlagstaff, AZ FGZ 928-556-9185 FLG, GCN, INW, PGA, PRCPhoenix, AZ PSR 602-275-7004 BLH, IPL, PHX, YUM


Chapter 3

ARTCC Facility Structure

3.1 Traffic Management Unit (TMU)

3.1.1 TMU Staff


Traffic Management Officer (TMO) Johnnie Garza 661-265-8250Supervisory Traffic Management Coordinator (STMC)Aaron Boxer 661-265-8255Supervisory Traffic Management Coordinator (STMC)Gil Burnias 661-265-8255Supervisory Traffic Management Coordinator (STMC)Steve Johnson 661-265-8255Supervisory Traffic Management Coordinatory(STMC)Don Bringman 661-265-8255


14 CHAPTER 3. ARTCC FACILITY STRUCTURE

3.1.2 ARTCC Airspace Map

3.2 TMU Position Weather Impacts

3.2.1 Supervisory - 91

The Supervisory Traffic Management Coordinator (STMC) has overall managementresponsibility for traffic management at ZLA. Any weather that affects the hub airports(LAX, LAS, SAN and PHX) by changing the AAR should be briefed (See Section 3Hub Pacing Airports tables for weather criteria). Thunderstorm convective tops aboveFL240 within 75-100NM of these airports causes impact. Ground stops due to weather(See Section 3 Hub Pacing Airports) affecting LAX, LAS, SAN,SNA, ONT, BUR,VNY, SBA, CRQ, PSP, BFL are also of concern. Special attention should be givento the pacing or hub airports immediately outside of ZLA: SFO, OAK, SJC, SLC andespecially PHX. Advise the STMC of any thunderstorm activity greater than 50 percent coverage above FL240 along the major jet routes and in corridors bounded by“hot” restricted areas or MOAs. Turbulence moderate or greater that restricts aircraftfrom normal operating speeds causes impact. Frequent turbulence in layers restrictingpilots from selecting certain altitude ranges is a concern.Jet stream level winds areimportant to strategic planning along with the convective impact (CCFP) across theU.S. for the next 6 hours.


3.2. TMU POSITION WEATHER IMPACTS 15

3.2.2 Center Monitor Phoenix Time Based Metering - 41

This position monitors overloading of radar sectors and theand the CTAS metering forPHX. Major concerns are any thunderstorm convective tops above FL240 throughoutthe ZLA airspace and in Western or Northern Arizona. Weatherthat reduces AAR orground stops PHX is also of concern. Special attention for convection is on the narrowcorridors of Special Use Airspace (SUA) where isolated thunderstorm cells can causesignificant impact. Moderate or greater turbulence in any layer that causes pilots toreduce speed or avoid certain altitudes is a concern.

3.2.3 LAX Time Based Metering - 61

Major concerns are weather that affects the LAX AAR (See Section 3 Hub PacingAirports tables for weather criteria). Compression of the arrival aircraft separation dueto tail wind/head wind difference of 50kts between 10,000msl and FL240 impact theAAR. Thunderstorm convective tops above FL240 within 75-100NM of these airportscauses impact. Moderate or greater turbulence in any layer that causes pilots to reducespeed or avoid certain altitudes is also of concern.

3.2.4 LAS Time Based Metering - 51

Major concerns are weather that affects the LAS AAR (See Section 3 Hub PacingAirports tables for weather criteria). Compression of the arrival aircraft separation dueto tail wind/head wind difference of 50kts between 10,000msl and FL240 can impactAARs. Thunderstorm convective tops above FL240 within 75-100NM of these airportscauses impact. Moderate or greater turbulence in any layer that causes pilots to reducespeed or avoid certain altitudes is also of concern.

3.2.5 Route Manager ESP - 71

This position coordinates National scoped route changes that affect departures/arrivalsfrom ZLA airspace. Weather impacting ZLA pacing airport AARs are of concern.Special concern is with thunderstorms meeting CCFP criteria across the U.S. that maybe generating playbook routes. High altitude jet stream winds across the U.S. are alsoof interest.

3.2.6 Mission Coordinator Weather Coordinator - 87

This position coordinates military or other special operational use of the ARTCC airspace.Thunderstorm activity that may result in aircraft deviations into active Special UseAirspace (SUA) or in narrow corridors between SUAs may require the Mission Co-ordinator to request airspace from the military. Rapidly developing (less than 1 hour)thunderstorms with tops over FL240 are of special concern near SUAs boundaries adja-cent busy air traffic corridors. The mission coordinator also assumes the responsibilityof weather coordinator at ZLA during staffed hours (STMC or OMIC assumes this re-sponsibility otherwise). Weather coordinator duties include internal (ZLA Air Traffic



associated facilities) dissemination of urgent PIREPs, AIRMETs, and CWAs (Convec-tive and non-convective SIGMETs are automatically routed by NAS software).

3.2.7 System Advocate - 81

TBD


3.3. AREA A SECTORS - WEATHER IMPACT 17

3.3 Area A Sectors - Weather Impact

High Altitude Sectors Low Altiude Sectors VORs

25,26,28 02,13,14,15 AVE, MQO, FLW, GVO, RZS, VTU

• Thunderstorms along Filmore (FIM) to Avenal (AVE) route impacting arrivalinto LAX

• Moderate or greater icing

• Strong north or northwest winds (over 70knots) between 10,000 and FL240 caus-ing compression as aircraft descend over FIM arriving into LAX

• Dense fog impacting coastal airports

• IMC conditions for low altitude sectors below 12,000

• IFR or LIFR ceilings and visibilities coastal plains and valleys

• Extensive moderate or greater turbulence 10,000 to FL340 forcing aircraft toavoid layers. This results in aircraft tunneling under a capcausing a restrictionin altitudes available for enroute traffic

• San Luis Obispo (SBP) IFR operations or non visual operations



3.4 Area B Sectors - Weather Impact

High Altitude Sectors Low Altiude Sectors VORs

27,38 03,04,17,18 EHF, TTE, GMN, VNY, LHS, PMD, EDW,VCV, DAG, HEC

• Thunderstorms along (Tops above FL300) DAG HEC corridor cause significantimpact on ATC operations. This includes CB tops exceeding FL350 over moun-taiins south and west of Las Vegas because aircraft begin deviating 50-100nmfrom the DAG HEC corridor

• Thunderstorms sector 4, vicinity PMD and GMN tops above FL240. Becausethese points are close in to arrival airports even lower CB tops can cause signifi-cant ATC impact


• Moderate or greater icing especially over mountains in busyair traffic regionscoastal mountains of Southern California

• Strong up and down drafts due to mountain wave action. This conditions createsa situation where additional altitude separation is required


3.5. AREA C SECTORS - WEATHER IMPACT 19

3.5 Area C Sectors - Weather Impact

High Altitude Sectors Low Altitude Sectors VORs

37,39.40,60 19,20 POM, PDX, HDF, JLI, PSP, TRM, TNP,BLH, PKE, EED, GFS

• Any weather that impact LAX aircraft arrival rate

• Thunderstorms are the major impact for Area C. Sensitive areas include FL240CB tops and above southwest edge of sectors 19 and 20 vicinityBig Bear; TRMto BLH tops above FL370 where special use airspace narrows the corridor; PKEto TNP tops above FL370

• Thunderstorms in the DAG HEC corridor when aircraft deviations cause head-onconflicts with traffic outbound in Area B sector 38





3.6 Area D Sectors - Weather Impact


16,32,33,34 06,16 BTY, LAS, BLD, IGM, PGS, MMM, SGU,CDC, GCN, BCE, PGA

• Thunderstorms tops above FL250 severely impact Sector 16 traffic in the BTYcorridor NW of LAS. Moderate impact on ATC operations between LAS andCDC along east boundary of Nellis Complex

• Any thunderstorm tops south through west through northwestof LAS affect ar-rival and departures with LAS

• Any weather condition that impact LAS arrival rate (See Hub Pacing Airportssection)


• Any frequent moderate or greater turbulence in layers impacts altitudes availablefor traffic

• Mountain wave action over Spring Mountains and Southern Sierra Nevada range


3.7. AREA E SECTORS - WEATHER IMPACT 21

3.7 Area E Sectors - Weather Impact


30,31 09,10,12,21,22 LAX, SMO, SLI, HDF, ELB, PDZ, POM,SXC, OCN, MZB, PGY, TIJ, JLI, PSP,TRM, TNP, PKE, BLH, IPL, MXL, BZA

• Thunderstorms tops above FL270 along the ridge line from BigBear south to theMexican border. Near solid coverage or lines can cause majordeviations and/orground stops from SAN or SNA airports

• Thunderstorms tops above FL 350 vicinity YUM and along a narrow corridorsurrounded by special use airspace extreme southwest Arizona

• Any weather impacting arrivals or departures at LAX and SAN

• Terminal weather below minimums at SNA, CRQ, SAN and MYF airports


• Strong up and down drafts due to mountain wave action. This conditions createsa situation where additional altitude separation is required especially vicinity ofJLI VOR




3.8 Area F Sectors - Weather Impact


35,36,53 07,08 LAS, BLD, MMM, SGU, BCE, CDC, PGA,TBC, GCN, IGM, PGS, EED, PRC, FLG

• Thunderstorms with tops above FL250 east and southeast of LAS have impact

• Thunderstorms tops above FL370 along northeast and southeast ZLA boundaryor outside the boundary cause aircraft deviations and impact workload

• Moderate or greater icing low altitude sectors 7 and 8

• Any weather condition that impacts LAS and PHX arrival rate (See Hub PacingAirports section)



3.9. TRACONS AND PHONE CONTACTS 23

3.9 TRACONs and Phone Contacts

Facility Name Facility ID Commercial Phone VSCS Phone

Southern California TRACON SCT 858-537-5895 192-69Bakersfield TRACON BFL 661-399-3531 182-73Santa Barbara TRACON SBA 805-681-0116 183-04Point Mugu Approach NTD 805-488-5893 142High Desert TRACON E10 661-277-3843 114Palm Springs TRACON PSP 760-325-7677 181-50Las Vegas TRACON L30 702-262-5925 113-23Yuma Approach YUM 928-269-2231 159 Voice



3.10 FAA Towers and Phone Contacts

Facility Name Facility ID Commercial Phone VSCS Phone

Bakersfield Tower BFL 661-399-3531 182-73Bullhead Tower IFP 520-754-2141 179-24Burbank Tower BUR 818-567-4806 127-42Camarillo Tower CMA 805-388-9730 NAChino Tower CNO 909-597-1703 NACarlsbad Tower CRQ 760-438-2972 NAEl Monte Tower EMT 626-442-4390 NAGrand Canyon Tower GCN 520-638-2850 186-07Las Vegas Tower LAS 702-262-5930 113-40Los Angeles Tower LAX 310-342-4932 192-56Long Beach Tower LGB 562-424-7128 123-89Montgomery Tower MYF 858-277-5602 NAOntario Tower ONT 909-937-0158 181-84Brackett Tower POC 909-596-9081 182-65Palm Springs Tower PSP 760-327-1546 181-50San Luis Obispo Tower SBP 805-541-2468 183-32San Diego Tower SAN 619-299-0526 119-45Santa Barbara Tower SBA 805-681-0116 183-47Santa Maria Tower SMX 805-925-5380 183-86Santa Monica Tower SMO 310-398-1525 NAJohn Wayne Tower SNA 714-668-9845 123-36Torrance Tower TOA 310-539-1278 NANorth Las Vegas Tower VGT 702-647-5467 NAVan Nuys Tower VNY 818-787-2407 127-39


Chapter 4

Hub/Pacing Airports

4.1 Los Angeles (LAX)

4.1.1 LAX Times of Daily Arrival Departure Rushes

Local Time

Arrivals Departures

1000 to 1300 0700 to 08002000 to 2200 2200 to 2300


26 CHAPTER 4. HUB/PACING AIRPORTS

4.1.2 LAX Airport Diagram

• West Operation - Runways 25L 25R (South Complex) and Runways24L 24R(North Complex). Optimum configuration

• East Operation - Runways 07L 07R (South Complex) and Runways06L 06R(North Complex). Non-optimum configuration

• From midnight to 6am local time, aircraft depart to west and land toward east fornoise abatement


4.1. LOS ANGELES (LAX) 27

4.1.3 LAX Significant Weather Criteria

Wind Ceiling Visibility Other

• West operation isdefault

• East surface wind>10kts decreasesarrival rate 5-10%

• Difference of 30-50ktsbetween 150 and SFCgenerating tail windcomponent(compression)increases MITsequencing of arrivals

• Strong cross wind

>35kts impacts AAR

• <5nm radius airportSCT010 may precludevisual operations

• <003 RVRs determineAAR

• 004-030 IFRoperations AAR 68

• >050 visual operationsAAR 84

• Partial Visual AAR72-76

• 5-20nm radius airport

SCT-BKN030-050

partial visual ops

72-76 AAR

• Vis <3SM AAR 68

• CAT I - RVR 1800

• CAT II - RVR 1200

• CAT IIIb - RVR 600

• AAR degrades linearlyto 32 Vis <1sm

• 5-20nm radius airportVis 7SM 50msl marinelayer haze 025-045decreases AAR 68-76

• Tower cab obscured

stratus/fog reduces

AAR to 64

• TSTMs within 10terminal within 5nmgares/fixes

• Wet runway decreaseseast operations windthreshold to 7kts

• Tower cab obscuredwhen SFC001-002OVC Vis 1-2airport operates atAAR64

• Snow on runway

extremely rare or

unknown event



4.1.4 LAX Climatology



4.1.5 LAX Arrival Fixes and Gates



4.1.6 LAX Departure Fixes and Gates

4.1.7 LAX Significant Weather for Arrival Departure Fixes andGates

• Thunderstorm tops above FL250 within 100NM. Because of the complex airspacewith departures and arrivals to the LAX Basin airports, any thunderstorms causeATC impact. Lines or clusters of CB cells affecting one majordeparture (east,northeast or toward the northwest) cause moderate impact.



• Severe ATC impact results from lines of thunderstorms impacting two or moremajor departure routes. Most of these scenarios are associated with summermonsoon convection over the mountains or cells that close off the LOOP depar-ture northeast bound toward the DAG HEC corridor.

• Be aware of lower top convection (15,000 to FL240) within 20NM of LAX.When these cells align along the ILS approach or downwind legeast of SMOVOR, severe ATC impact can result.

• Lines of convective cells over the mountains from Big Bear southward to theSan Jacinto and Mount Laguna areas can cut off the LAX east departures (LAXDeparture TRM transition). Convection in the vicinity of FIM and GMN VORsare also critical to both departure and arrival traffic into LAX.

• Monitor conditions for hub Weather Criteria that occur out 15NM from the centerpoint of LAX.



4.2 Las Vegas (LAS)

4.2.1 LAS Times of Daily Arrival Departure Rushes

Local Time

Arrivals Departures

1000 to 1100 1100 to 13001500 to 1600 1300 to 1400

1600 to 17002130 to 2300 2300 to 0000

4.2.2 LAS Airport Diagram


4.2. LAS VEGAS (LAS) 33

4.2.3 LAS Significant Weather Criteria


• Config 1 - R19/25AAR 64 180-300degs

• Config 2 - R01/07AAR 54 360-070degs>12kts

• Config 3 - R01/25AAR 45-54300-330degs >15kts

• Config 4 - R07 AAR32 060-110degs>25-30kts

• Max crosswind 30kts

for Southwest and

America West AL

about65% of traffic

• <002 Rwy 25 airportbelow minimums

• <050 IFR operationsAAR 32

• 050-090 SCT-BKNpartial visualoperations AAR 45-54

• >090 visual operations

AAR 64

• <1/2 mile - airportbelow minimums

• <3SM legal defintionIFR operations

• <7SM partial visual

operations

• Thunderstorms within10nm terminal within5nm gates/fixes

• Runway sfc temp>100F decreases tailwind criteria to 6kts

• snow on runway is a

rare event -

wouldcause

significaint impact



4.2.4 LAS Climatology



4.2.5 LAS Arrival Fixes and Gates



4.2.6 LAS Departure Fixes and Gates



4.2.7 LAS Significant Weather for Arrival Departure Fixes andGates

• Thunderstorms tops above FL250 from 35NM to 75NM out. Duringsummerconvection aircraft descend below cloud bases which average around 12,000to 15,000msl allowing limited visual operations and deviations around heaviershowers.

• Thunderstorms tend to form over mountains around 35NM out southeast throughwest through northwest.

• Be aware of outflow boundaries and rapid CB development inside of 25NM.Rapid wind shifts, microbursts and brief times of blowing dust can cause groundstops that last 10-20 minutes.

• Thunderstorms can cut off traffic through: 1) Beatty (BTY) toFUZZY corridor.2) Daggett to CLARR corridor.

• Monitor conditions for hub Weather Criteria that occur out 15NM for the centerpoint of LAS.



4.3 San Diego (SAN)

4.3.1 SAN Times of Daily Arrival Departure Rushes

Local Time

Arrivals Departures

1100 to 1500 0630 to 07301900 to 1930 1100 to 1300

1900 to 1930

4.3.2 SAN Airport Diagram


4.3. SAN DIEGO (SAN) 39

4.3.3 SAN Significant Weather Criteria


• Preferred R27operation

• 10kts east componentturns airport around toR09

• Cigs/Vis <007/1 with

west wind >10kts

forces ground stop

• R27 <007 landingminimums

• R09 <004 landing

minimums

• R27 <1SM,13/4,2 forCategory B C and Dlanding minimums

• R09 <1SM

• No AAR imposed by

TMU or approach.

Traffic handled

dynamically by ZLA

TMU

4.3.4 SAN Climatology



4.3.5 SAN Arrival Fixes and Gates


4.3. SAN DIEGO (SAN) 41

4.3.6 SAN Departure Fixes and Gates

4.3.7 SAN Significant Weather for Arrival Departure Fixes andGates

• Thunderstorms within 50NM tops above FL240 cause ATC impact. During sum-mer months monsoon moisture cause CB development and thunderstorms to de-velop over the mountains along a north to south line 35-50NM east and northeast.Solid lines of CB tops above FL240 cause severe ATC impact cutting off depar-ture routes over JLI and toward the east over IPL. Isolated thunderstorms causerelatively minor impact.



• Thunderstorms associated with winter or early spring 500mbtroughs and coldunstable air masses cause brief impact (10-30minutes) to the SAN terminal areawithin 15NM. These cells forms short lines and move inland from the coastalwaters across CRQ and SAN. Small hail, moderate or greater icing and surfacewind gusts to 45 knots with the possibility of waterspouts cause brief but signif-icant ATC impact. CB tops are low usually around FL240 or less.

• Low ceilings below 700 feet and/or visibilities less than 1 1/2 miles cause theairport to turn around to a Runway 09 operation. These conditions are generallyassociated with low stratus or fog. During the Fall or Wintermonths, strongshallow inversions with a developing marine layer can bringthese low ceilingsvisibilities into SAN during the afternoon or evening hours. Ceiling below 400feet and/or 1 mile will force a ground stop.

• During active frontal scenarios with westerly surface winds greater than 10 knotsif the ceiling drops below 700 feet and/or visibility less than 1 1/2 miles usuallyin moderate to heavy rain, SAN can be ground stopped. This is due to excessivetailwinds for landing on a Runway 09 operation.


Chapter 5

FAA Playbook Operations andCCFP

5.1 Support to Strategic Plan of Operations (SPO) Tel-con

The TMU Supervisor begins monitoring the SPO Telcon every morning at 6:15am lo-cal time and every two hours through 10:15pm. TMU Supervisors and/or coordinatorsfrom Southern California TRACON, LAX Tower and Las Vegas TMUalso monitor atthese times. During these telcons, each facility communicates and discusses weatherimpact with the ATCSCC and airline representatives in orderto gain consensus fora plan of action. The ATCSCC then decides to initiate EnrouteDeparture Control(EDCT) or other programs including initiatives that reroute major east-west or north-south transcontinental routes according to a list of Playbook plans.

It is important for the meteorologist to convey areas in ZLA and within 150NM ofthe airspace which are or will be significantly impacted by weather over the next sixhours. Thunderstorms meeting CCFP criteria should be emphasized. However, moreisolated thunderstorm coverage, its beginning time, ending time, intensity and con-vective tops, is also very important when located near arrival gates or in special useairspace restricted corridors. Moderate or greater turbulence that will limit preferredaltitude ranges above FL240 should be noted. Jet stream locations are important forthe traffic management in assessing the amount of traffic arriving into the hub arrivalgates.

5.2 Weather Impact to Internal Airports

Refer to the Weather Criteria in Section 4 to determine significant weather at the pac-ing airports (LAX, Las Vegas and San Diego). Keep the TMU supervisor aware ofsignificant weather at these airports prior to the SPO telcon.


44 CHAPTER 5. FAA PLAYBOOK OPERATIONS AND CCFP

5.3 Weather Impact to Outer Tier Airports

Hub pacing airports just outside ZLA airspace that cause significant impact include:Phoenix (PHX), San Francisco Bay area (SFO,OAK,SJC), Salt Lake City (SLC) andReno (RNO). Non-visual operations at SFO frequently require an EDCT delay pro-gram. Keep the TMU supervisor aware of significant weather atthese outer tier airportsprior to the SPO telcon.

5.4 Playbook and Other Regional Reroutes

Los Angeles ARTCC handles a significant amount of arrival anddeparture traffic overmost of its airspace. As a consequence, Playbook routes initiated by the ATCSCC hasa small effect on en-route traffic planning within the ARTCC.Departure traffic willrequire increased workload by the TMU staff to update flight plans when Playbookroutes are in effect for transcontinental routes. Arrival traffic into LAX or Las Vegascan be seriously impacted by Playbook routes because of overloading arrival gates. It isfor this reason that meteorologists must keep the TMU personnel aware of the Nationalweather picture. This includes the distribution of thunderstorms and CCFP impactedareas across the country and significant weather impact at all the U.S. hub airports.


Chapter 6

Special ARTCC Requirements

6.1 Quality Assurance Office Weather Support Require-ments

6.1.1 Operational Errors and Pilot Deviations

The OMIC or quality assurance office staff will request weather documentation to sup-port investigations of operational errors or pilot deviations. Co-located METAR obser-vations closest to the incident are normally requested. Additional weather information(AIRMETs, SIGMETs, CWAs, PIREPs, Radar or Satellite images, winds aloft, etc.)can be offered to the requestor when appropriate.

6.1.2 Aircraft Accidents

The quality assurance office may request weather documentation related to aircraftaccidents or incidents. Provide them with all official NWS observations, other obser-vation sources and relevant forecasts available. It is important that copies of all doc-uments be retained and delivered to the CWSU MIC. Refer to theZLA Station DutyManual Volume I Section 3.1.

6.2 Routine Briefings to the ARTCC and Other FAAFacilities

6.2.1 ARTCC Verbal Briefings

Standup Briefing Times: 0800 local and 1600 local time

The Los Angeles CWSU briefing is discussion-based, including current and forecastweather conditions expected in the ZLA ARTCC operations area during the upcomingshift, and an outlook for the following shift or, if the CWSU is ceasing operations,


46 CHAPTER 6. SPECIAL ARTCC REQUIREMENTS

the overnight hours. Each briefing should contain sufficientinformation for ATC andTMU managers to make decisions and appropriate operationaladjustments based onweather impacts on the NAS. Delivery will be in the form of a stand-up briefing for theTMU Supervisor, Weather Coordinator, Operations Manager,and Area Supervisorswith a presentation of information in electronic form via the WARP Briefing Terminal.Significant updates to the briefing shall be performed by verbally briefing the TMU Su-pervisor, OMIC and the appropriate Area Supervisors as required by changing weatherconditions.

Refer to the ZLA CWSU Station Duty Manual Volume II Section 2.1 for content andother details.

6.2.2 ZLA Southern California Telephone Conference Briefing

Phone Briefing Times: 0630 local and 1500 local time

The ZLA Southern California telephone conference briefing (VSCS IA125 line) willbe discussion-based and cover weather conditions over the region west of the South-ern California coastal mountains including LAX and the coastal regions between SanDiego and San Luis Obispo. These briefings should contain sufficient information forTraffic Management (TM) personnel to make decisions and appropriate operational ad-justments based on weather impacts to the NAS system. Particular emphasis will beplaced on the terminal environments of (in priority order):Los Angeles International(LAX), San Diego Lindbergh (SAN), John Wayne airport (SNA),Hollywood Burbankairport (BUR), Ontario International (ONT), Santa Barbaraairport (SBA), Van Nuysairport (VNY), Santa Maria (SMX), San Luis Obispo airport (SBP) and Point MuguNAS (NTD). Briefing times should normally last between two and four minutes.


6.2.3 Las Vegas TMU Telephone Conference Briefing

Phone Briefing Times Approximately: 0610 local and 1345 local time

The Las Vegas TMU telephone conference briefing (VSCS) will be discussion-basedand cover weather conditions over the Las Vegas (LAS) terminal area and extendingoutward 50NM. These briefings should contain sufficient information for Traffic Man-agement (TM) personnel to make decisions and appropriate operational adjustmentsbased on weather impacts to the NAS system. Briefing times should normally last be-tween two and four minutes.



6.3. ARTCC WRITTEN BRIEFINGS 47

6.3 ARTCC Written Briefings

6.3.1 Los Angeles TMU Briefing Statement

Statements issued at 1230 local time daily. Valid times are 2100Z to 0500Z on DaylightTime and 2200Z to 0600Z on Standard Time (1400 to 2200 local time daily).

The Los Angeles TMU has a need of a weather briefing emphasizing weather im-pact on aircraft departures/arrivals into LAX Basin airports (LAX, LGB, SNA, BUR,and ONT). the San Diego area, and Las Vegas. This statement will be a discussionand forecast of weather conditions having meteorological impact on ATC operations.It will be issued in printed form and delivered to the TMU Supervisor. An additionalhard copy version of this briefing will be retained on a clipboard in the CWSU workarea. The format and guidelines for creating this briefing statement are as follows.

Refer to the ZLA CWSU Station Duty Manual Volume II Section 2.2.

6.3.2 Los Angeles OMIC Briefing Statement

Statement issued at 2030 local time daily. Valid times are 1100Z to 1500Z.

A printed briefing statement issued for the ZLA OMIC working the midnight shift.The purpose of this statement is to brief the OMIC position onweather impacting ATCoperations before the CWSU opens up in the early morning hours in support of theSPO telcons.

Refer to the ZLA CWSU Station Duty Manual Volume II Section 2.3

6.3.3 PIREP Solicitation Forecast

Product issued three times daily: 0635, 1235, and 1835 localtime. The product will bevalid for eight hours from the issuance time.

Complete a WARP graphic template (Class: MAP/A00_PIREPFORM) showing a ta-ble of locations/criteria for which aviation weather conditions are forecast or occur-ring in ZLA airspace regions. Six columns represent the airspace for ZLA Area Athrough F. Six rows indicate the criteria: CEILING 50 AND BELOW; VISIBILITYSFC ALOFT AOB 5SM; THUNDERSTORM ACTIVITY OR RELATED PHENOM-ENA; TURB MOD OR GREATER; ICG LGT OR GREATER; WIND SHEAR. Whencertain weather criteria occur check an “X” mark or short description in the respectivecell.

Save the graphics to the WARP Class BT Product PIREPFORM. Then send copies ofthe PIREP Form to WARP Briefing Terminals of the Area A throughF with ALARMSON.


48 CHAPTER 6. SPECIAL ARTCC REQUIREMENTS

Refer to the ZLA CWSU Station Duty Manual Volume II Section 2.6.

6.4 Special Event Briefings

As requested by the ZLA Traffic Management Officer (TMO).

6.5 Automated Flight Service Station (AFSS) Support

No routine support. AFSS calls CWSU with non-routine questions and receipt of ur-gent PIREPs. Meteorologist may call Flight Watch to requestPIREPs.

6.6 Outreach Programs and Other Support to the FAA

• Visits to WFOs with coverage in the CWSU area

• Training or familiarization visits to pacing airport towers and TRACONs

• Training for ARTCC ATO staff on weather hazards

• Weather Coordinator and TMU Coordinator training

• Seminars and/or training for pilot groups or FSDO Safety Seminars


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