960619: US METAR/TAF Implementation July 1st (fwd)

     
236 
NOUS41 KWBC 191416
PNSNMC
     
NATIONAL TECHNICAL INFORMATION MESSAGE /NTIM/ 96-14 
NATIONAL WEATHER SERVICE HEADQUARTERS
1030 AM EDT WED JUN 19 1996
     
TO           USERS OF U.S. SURFACE OBSERVATIONS AND AVIATION
             TERMINAL FORECASTS
     
FROM         HOWARD J. DIAMOND
             NWS METAR/TAF IMPLEMENTATION MANAGER 
     
SUBJECT      METAR/TAF PROJECT   U.S. IMPLEMENTATION OF METAR
             AND TAF CODES EFFECTIVE MONDAY JULY 1 1996 AT 
             0800 UTC
     
REFERENCES   AFOS CHANGE NOTICES 1117...1177...1178...1186... 
1192...1193...1195...1212 /PARTS A...B...C/...AND 1216 /U.S. 
METAR PILS/ AFOS CHANGE NOTICE 1220 A...B /U.S. TAF PILS/
     
AS A REMINDER...THE U.S. IS IMPLEMENTING THE INTERNATIONAL HOURLY 
SURFACE OBSERVATION CODE /METAR/ AND THE INTERNATIONAL AERODROME 
/TERMINAL/ FORECAST CODE /TAF/ ON MONDAY JULY 1 1996 AT 0800 UTC.
     
COINCIDENT WITH THE U.S. IMPLEMENTATION OF THE METAR/TAF CODES... 
THE U.S. SURFACE OBSERVATIONS IN THE DOMESTIC CODE /SA/ AND U.S. 
TERMINAL FORECASTS IN THE DOMESTIC CODE /FT/ AND THE 
CORRESPONDING AFOS AND WMO IDENTIFIERS WILL BE DISCONTINUED.
     
FOR AFOS USERS...THE INDIVIDUAL AFOS IDENTIFIERS FOR ALL THE 
U.S. METAR OBSERVATIONS WERE PROVIDED IN A SERIES OF AFOS 
CHANGE NOTICES NUMBERED 1117...1177...1178...1186...1192... 
1193...1195...AND 1212 /PARTS A...B...AND C/...AND 1216...WHICH
HAVE BEEN SENT OUT OVER THE PAST FEW MONTHS.  THE INDIVIDUAL AFOS 
IDENTIFIERS FOR THE 429 ADDITIONAL U.S. TAF PILS WILL BE PROVIDED 
IN AFOS CHANGE NOTICE NUMBER 1220 /PARTS A AND B/ WHICH HAS NOT 
BEEN TRANSMITTED YET.  AFOS CHANGE NOTICES ARE SENT UNDER AFOS 
IDENTIFIER CCCADADRG...WHERE "CCC" IS YOUR LOCAL NODE ID.  THESE 
AFOS CHANGE NOTICES ARE ALSO POSTED TO THE NWS METAR/TAF HOME 
PAGE /REFER TO THE END OF THIS MESSAGE FOR THE URL ADDRESS OF THE 
NWS METAR/TAF HOME PAGE/.
     
FAMILY OF SERVICES USERS  THERE ARE TWO TYPES OF METAR/TAF 
COLLECTIVES.  THE FIRST ONE /STANDARD FORMAT/ IS THE 
INTERNATIONAL FORMAT WITH THE WORD/S/ METAR...SPECI...TAF...OR 
TAF AMD IDENTIFIED ONLY ONCE AT THE BEGINNING OF THE COLLECTIVE 
FOLLOWED BY EACH FOUR-LETTER INTERNATIONAL CIVIL AVIATION 
ORGANIZATION /ICAO/ STATION IDENTIFIER AS FOLLOWS 
     
   SAUS80 KWBC         SPUS80 KWBC         FTUS80 KWBC
   METAR               SPECI               TAF OR TAF AMD     
   KIAD...             KIAD...             KIAD...
   PAFA...             PAFA...             PAFA... 
   PHNL...             PHNL...             PHNL...
     
THE SECOND ONE /FAA FORMAT/ IS A SPECIALIZED COLLECTIVE FORMAT 
WITH THE WORD/S/ METAR...SPECI...TAF...OR TAF AMD ON EACH LINE OF 
THE COLLECTIVE PRECEDING THE STATION IDENTIFIER AS FOLLOWS 
     
   SAUS90 KWBC         SPUS90 KWBC         FTUS90 KWBC 
   METAR KIAD...       SPECI KIAD...       TAF KIAD... 
   METAR PAFA...       SPECI PAFA...       TAF PAFA... 
   METAR PHNL...       SPECI PHNL...       TAF AMD PHNL...
     
THE FAA FORMATTED COLLECTIVES ARE ONLY TRANSMITTED TO THE FAA. 
INFORMATION ON THESE SPECIALIZED COLLECTIVES BEING PROVIDED HERE 
SOLELY FOR INFORMATIONAL PURPOSES.
     
THE WMO HEADERS FOR THE OPERATIONAL U.S. METAR PRODUCTS ARE 
     
   SAUS70 KWBC /FAA-SOURCED METAR REPORTS IN STANDARD COLLECTIVE
FORMAT/
   SPUS70 KWBC /FAA-SOURCED SPECI REPORTS IN STANDARD COLLECTIVE
FORMAT/
   SAUS80 KWBC /NWS-SOURCED METAR REPORTS IN STANDARD COLLECTIVE
FORMAT/
   SPUS80 KWBC /NWS-SOURCED SPECI REPORTS IN STANDARD COLLECTIVE
FORMAT/
   SAUS90 KWBC /NWS-SOURCED METAR REPORTS IN FAA COLLECTIVE
FORMAT/
   SPUS90 KWBC /NWS-SOURCED SPECI REPORTS IN FAA COLLECTIVE
FORMAT/
     
WITH THE FULL IMPLEMENTATION OF METAR/TAF ON JULY 1...THE TEST 
COLLECTIVE OF METAR DATA UNDER THE HEADER SXUS81 KWBC WILL ONLY 
CONTAIN TEST METAR AND SPECI REPORTS FROM UNCOMMISSIONED ASOS 
SITES.
     
THE WMO HEADERS FOR THE COLLECTIVES CONTAINING 532 NWS-PREPARED 
TAFS ARE 
     
     FTUS80 KWBC /NWS TAFS IN STANDARD COLLECTIVE FORMAT/ 
     FTUS90 KWBC /NWS TAFS IN FAA COLLECTIVE FORMAT/
     
IT SHOULD BE NOTED THAT TODAY THE COLLECTIVES SAUS80 KWBC AND 
FTUS80 KWBC CONTAIN SA AND FT DATA RESPECTIVELY AND THAT ON JULY 
1 BEGINNING AROUND 0745 HOURS UTC THESE COLLECTIVES WILL SWITCH 
TO CONTAINING METAR AND TAF FORMATTED REPORTS.  FTUS90 KWBC 
CURRENTLY CONTAINS 101 NWS-PREPARED TAF REPORTS AND ALSO 
BEGINNING ON JULY 1 THAT COLLECTIVE WILL CONTAIN A TOTAL OF 532 
NWS-PREPARED TAF REPORTS. 
     
FOR MORE INFORMATION ON THE U.S. IMPLEMENTATION OF THE METAR AND 
TAF CODES...REFER TO THE NATIONAL WEATHER SERVICE'S METAR/TAF 
HOME PAGE AT THE FOLLOWING ADDRESS ON THE WORLD WIDE WEB 
     HTTP://WWW.NWS.NOAA.GOV/OSO/OSO1/OSO12/METAR.HTM
     
IF YOU HAVE ANY QUESTIONS ABOUT THE NWS METAR/TAF IMPLEMENTATION 
EFFORT PLEASE CONTACT HOWARD DIAMOND THE NWS METAR/TAF 
IMPLEMENTATION MANAGER VIA E-MAIL AT THE FOLLOWING ADDRESS 
     HDIAMOND@xxxxxxxxxxxxxxxxxxxxxx
END