[nws-changes] 20080522: TAFS-NOTICE NOUS41 KWBC]

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-------- Original Message --------
603 NOUS41 KWBC 221850 
PNSWSH

TECHNICAL INFORMATION NOTICE 08-47
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
250 PM EDT THU MAY 22 2008

TO:      NATIONAL WEATHER SERVICE /NWS/ OFFICES
        FEDERAL AVIATION ADMINISTRATION /FAA/ USERS
        FAMILY OF SERVICES /FOS/ SUBSCRIBERS
        OTHER USERS OF NWS AVIATION FORECASTS

FROM:    KEVIN L. JOHNSTON
CHIEF...AVIATION SERVICES BRANCH SUBJECT: TEST TAFS TO ENSURE PROPER DECODING OF 30-HOUR TAF FORMAT TEST DATE SCHEDULED: MAY 28 2008 REFER TO SERVICE CHANGE NOTICE /SCN/ 08-15 AND TECHNICAL IMPLEMENTATION NOTICE /TIN/ 08-37.
NWS WILL PROVIDE A MONTHLY TEST TAF SO USERS CAN CHECK AND EVALUATE THEIR ABILITY TO DECODE THE NEW DATE AND TIME FORMAT. GENERALLY NWS WILL PRODUCE TEST TAF PRODUCTS WITH THE 30-HOUR TAF FORMAT ON THE LAST WEDNESDAY OF EACH MONTH THROUGH OCTOBER 2008 AT 1400 UNIVERSAL COORDINATED TIME /UTC/. NWS WILL PROVIDE REMINDERS OF THE TEST TAF AT LEAST 3 DAYS BEFORE THE SCHEDULED TEST DAY. IF CRITICAL WEATHER OCCURS ON THE TEST DAY...THE TEST WILL BE POSTPONED UNTIL THE NEXT NON-CRITICAL WEATHER DAY. THE NEXT MONTHLY TEST WILL OCCUR MAY 28 2008.
A LINK TO THE TAF TESTBED AND TAF FORMAT EXAMPLES IS AVAILABLE AT /USE LOWER CASE LETTERS/: 

 HTTP://WWW.WEATHER.GOV/OS/AVIATION/TAF_TESTBED.SHTML
THE 30 HOUR TEST TAF FOR MAY SHOULD LOOK AS FOLLOWS: 
FTXX90 KWBC 281754
TAF KABC 281128Z 2812/2918 VRB05KT P6SM SKC
   FM281800 21012KT P6SM SCT050 BKN120
   FM282100 21015G30KT P6SM FEW040CB SCT070 BKN120
   FM290100 27015KT 3SM -TSRA SCT030CB BKN070
    TEMPO 2902/2904 VRB15G45KT 1/2SM TSRA BKN015CB
   FM290500 27010KT P6SM SCT030 BKN090
FM291500 VRB05KT P6SM SCT100= USERS WILL NEED TO CODE THEIR SYSTEMS FOR FTXX90 KWBC TO SEE THIS TAF.
IF YOU HAVE ANY QUESTIONS REGARDING THIS TECHNICAL INFORMATION NOTICE PLEASE REFER TO SCN 08-15 OR CONTACT: 

   MICHAEL GRAF
   NATIONAL WEATHER SERVICE
   SSMC-2 STATION 13314
   1325 EAST-WEST HIGHWAY
SILVER SPRING MD 20910 PHONE: 301-713-1726 X 117 EMAIL:MICHAEL.GRAF@xxxxxxxx 

NWS SERVICE CHANGE NOTICES ARE ONLINE AT /USE LOWER CASE/:

   HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

$$
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