Understanding AviationWeather ReportsBN
6Rev 1 Oct. 2003UNDERSTANDING PIREPSThe following is an example of a typical PIREP with an explanation of theelements.1. Station Identifier: KCRWThi
Rev 1 Oct. 20037LGT - Light - Momentarily causes slight, erratic changes in alti-tude and/or attitude.MOD - Moderate - Greater intensity changes in a
8Rev 1 Oct. 2003UNDERSTANDING AIRMETSThe following is an example of a typical AIRMET with an explanation of theelements.1. Forecast Area: CHITThis i
4. AMD indicates an amended report. Reports can be amended due tochanging weather conditions or issuance/cancelation of a SIGMET.COR in this field wo
10Rev 1 Oct. 2003UNDERSTANDING SIGMETSThe following is an example of a typical SIGMET issued for turbulence withan explanation of the elements.1. For
Rev 1 Oct. 2003113. Date and Time Issued: 041430.04 indicates the 4th day of the month. 1430 indicates UTC.4. This line indicates that SIGMET ROMEO
12Rev 1 Oct. 2003UNDERSTANDING CONVECTIVE SIGMETSThe following is an example of a typical Convective SIGMET with an expla-nation of the elements.1. S
Rev 1 Oct. 200313SIGMETs are issued hourly and replace the previous hour’s product.Each subsequent report issued for this same weather phenomenonwoul
14Rev 1 Oct. 2003UNDERSTANDING ALERT WEATHER WATCHES (AWW)The following is an example of a typical Alert Weather Watch with an expla-nation of the el
Rev 1 Oct. 2003157. Coordinates of the watch box area. Draw a line 75 STATUTE MILESNORTH AND SOUTH OF A LINE.. The endpoints of the line are45SSW MOB
WARNINGThe enclosed technical data is eligible for export under License Designation NLRand is to be used solely by the individual/organization to whom
16Rev 1 Oct. 2003This page intentionally left blank
Appendix ARev 1 Oct. 2003A-1ABNDT AbundantABNML AbnormalABT AboutABV AboveAC Convective outlook or altocumulusACC Altocumulus castel-lanus cloudsACCA
AMT AmountANLYS AnalysisANS AnswerAO1 Automated Reporting StationAO2 Automated Reporting StationAOA At or aboveAOB At or belowAP Anomalous Propa
Appendix ARev 1 Oct. 2003A-3BLKTG BlanketingBLKTS BlanketsBLO Below or below cloudsBLW BelowBLZD BlizzardBN Blowing sandBND BoundBNDRY Bounda
A-4Rev 1 Oct. 2003Appendix ACIG CeilingCIGS CeilingsCIN Convective inhibitionCLD CloudCLDNS CloudinessCLDS CloudsCLKWS ClockwiseCLR ClearCLRG
Appendix ARev 1 Oct. 2003A-5DBL DoubleDC District of ColumbiaDCR DecreaseDCRD DecreasedDCRG DecreasingDCRGLY DecreasinglyDCRS DecreasesDE Del
A-6Rev 1 Oct. 2003Appendix ADTRTD DeterioratedDTRTG DeterioratingDTRTS DeterioratesDU Widespread dust stormDURC During climbDURD During descentD
Appendix ARev 1 Oct. 2003A-7EXTSV ExtensiveF FahrenheitFA Aviation area fore-castFAH FahrenheitFAM FamiliarFC Funnel cloud (+FC = Tornado or wate
A-8Rev 1 Oct. 2003Appendix AGA GeorgiaGEN GeneralGENLY GenerallyGEO GeographicGEOREF Geographical refer-enceGF FogGICG Glaze icingGLFALSK Gul
Appendix ARev 1 Oct. 2003A-9IMPT ImportantINCL IncludeINCLD IncludedINCLG IncludingINCLS IncludesINCR IncreaseINCRD IncreasedINCRG Increasing
Rev 1 Oct. 2003iTABLE OF CONTENTSUNDERSTANDING METARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1UNDERSTANDING TAFS . . . .
A-10Rev 1 Oct. 2003Appendix ALIFR Low instrument flight rulesLIS Lifted IndicesLK LakeLKS LakesLKLY LikelyLLJ Low level jetLLWAS Low-level wind
Appendix ARev 1 Oct. 2003A-11MLTLVL Melting levelMN MinnesotaMNLD MainlandMNLY MainlyMO MissouriMOD ModerateMOGR Moderate or greaterMOS Model O
A-12Rev 1 Oct. 2003Appendix ANMC National Meteorological CenterNML NormalNMRS NumerousNNE North-northeastNNELY North-northeasterlyNNERN North-no
Appendix ARev 1 Oct. 2003A-13OUTFLO OutflowOV OverOVC OvercastOVHD OverheadOVNGT OvernightOVR OverOVRN OverrunOVRNG OverrunningOVTK OvertakeO
A-14Rev 1 Oct. 2003Appendix APROC ProcedurePROD ProducePRODG ProducingPROG ForecastPROGD ForecastedPROGS ForecastsPRSNT PresentPRSNTLY Presen
Appendix ARev 1 Oct. 2003A-15RDVLPMT RedevelopmentRE RegardRECON ReconnaissanceREF ReferenceRES ReserveREPL ReplaceREPLD ReplacedREPLG Replac
A-16Rev 1 Oct. 2003Appendix ARVRNO RVR system not availableRVS ReviseRVSD RevisedRVSG RevisingRVSS RevisesRW Rain showerRWY RunwayRY RunwayS So
Appendix ARev 1 Oct. 2003A-17SMLR SmallerSMRY SummarySMS Sunchronous mete-orological satelliteSMTH SmoothSMTHR SmootherSMTHST SmoothestSMTM Som
A-18Rev 1 Oct. 2003Appendix ASUPSDS SupersedesSVG ServingSVR SevereSVRL SeveralSW SouthwestSW- Light snow showerSW+ Heavy snow showerSWD Southwa
Appendix ARev 1 Oct. 2003A-19TROF TroughTROFS TroughsTROP TropopauseTRPCD Tropical continental air massTRPCL TropicalTRRN TerrainTRSN Transiti
iiRev 1 Oct. 2003This page intentionally left blank
A-20Rev 1 Oct. 2003Appendix AVCTR VectorVCTS Thunderstorms in the vicinityVDUC VAS Data Utilization Center (NSSFC)VFR Visual flight rulesVFY Verif
Appendix ARev 1 Oct. 2003A-21WRMR WarmerWRMST WarmestWRMFNT Warm frontWRMFNTL Warm frontalWRN WesternWRNG WarningWRS WorseWS Wind shearWSHFT
A-22Rev 1 Oct. 2003Appendix AThis page intentionally left blank
Appendix BRev 1 Oct. 2003B-1APPENDIX BINFLIGHT ADVISORY LOCATOR CHARTSEast Sector Identifier Map
B-2Rev 1 Oct. 2003Appendix BEast Sector Location Identifiers
Appendix BRev 1 Oct. 2003B-3Central Sector Identifier Map
B-4Rev 1 Oct. 2003Appendix BCentral Sector Location Identifiers
Appendix BRev 1 Oct. 2003B-5West Sector Identifier Map
B-6Rev 1 Oct. 2003Appendix BWest Sector Location Identifiers
Appendix BRev 1 Oct. 2003B-7Aviation Area Forecasts FA Locations for AIRMETs/SIGMETs
Rev 1 Oct. 20031UNDERSTANDING METARSRefer to the numbers on the following diagram to find the appropriatedescriptions.1. Type of Report: METAR (SPEC
B-8Rev 1 Oct. 2003Appendix BThis page intentionally left blank
Honeywell International Inc.One Technology Center23500 West 105th StreetOlathe, Kansas 66061FAX 913-791-1302Telephone: (913) 712-0400Copyright ©2001,
2Rev 1 Oct. 20037. Significant Present Weather: TSRATS is a two letter designation for thunderstorm. Other possible desig-nations could be as follo
Rev 1 Oct. 20033CLR Clear below 12,000 ft. (automated observing systems)FEW 1-2 OctasSCT 3-4 OctasBKN 5-7 OctasOVC 8 octas“VV” may also be encountere
4Rev 1 Oct. 2003UNDERSTANDING TAFSRefer to the numbers on the following diagram to find the appropriatedescriptions.1. Type of Report: TAF TAF indic
Rev 1 Oct. 20035FM denotes “from” and 1000 indicates 1000Z. “From” means a signifi-cant change in prevailing conditions is expected. The described
Comments to this Manuals