NOUS41 KWBC 251705
PNSWSH

TECHNICAL INFORMATION NOTICE 08-26
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
115 PM EST TUE MAR 25 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 POSTPONED UNTIL APRIL 30 2008 

REFER TO SERVICE CHANGE NOTICE /SCN/ 08-15 AND TECHNICAL 
INFORMATION NOTICE /TIN/ 08-19.

THE ORIGINAL TEST DATE WAS SCHEDULED FOR MARCH 26 2008. DUE TO 
TECHNICAL DIFFICULTIES... TESTING OF THE 30-HOUR TAF WILL BE 
DELAYED UNTIL APRIL 30 2008.  

A MONTHLY TEST TAF WILL BE PROVIDED FOR USERS TO CHECK AND 
EVALUATE THEIR ABILITY TO DECODE THE NEW DATE AND TIME FORMAT.  
GENERALLY TEST TAF PRODUCTS WITH THE 30-HOUR TAF FORMAT WILL BE 
PRODUCED THE LAST WEDNESDAY OF EACH MONTH THROUGH OCTOBER 2008 
AT 1400 UNIVERSAL COORDINATED TIME /UTC/. 

REMINDERS OF THE TEST TAF WILL BE PROVIDED 3 DAYS BEFORE THE 
SCHEDULED TEST DAY. IF CRITICAL WEATHER OCCURS ON THE TEST 
DAY...THE TEST WILL BE POSTPONED UNITL THE NEXT NON-CRITICAL 
WEATHER DAY.

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@NOAA.GOV

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

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

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