NOUS41 KWBC 021624 CCA
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 04-31...CORRECTED
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1220 PM EDT MON AUG 2 2004

TO:		FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
		WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY
		MANAGERS WEATHER INFORMATION NETWORK /EMWIN/
		SUBSCRIBERS...NOAAPORT SUBSCRIBERS...OTHER NATIONAL
		WEATHER SERVICE /NWS/ CUSTOMERS AND PARTNERS...NWS
		EMPLOYEES

FROM:		PAUL HIRSCHBERG
		CHIEF...SCIENCE PLANS BRANCH
		OFFICE OF SCIENCE AND TECHNOLOGY /OST/

SUBJECT:	CORRECTED: CHANGE TO NGM MOS BUFR PRODUCTS... 
		EFFECTIVE SEPTEMBER 7 2004

NOTE:		THE ORIGINAL TECHNICAL IMPLEMENTATION NOTICE /TIN/
		04-31... WAS TRANSMITTED ON JUNE 21 2004.  WE ARE 
		RETRANSMITTING THIS NOTICE TO MODIFY THE EFFECTIVE DATE.

ON TUESDAY...SEPTEMBER 7 2004...WITH THE 1200 COORDINATED 
UNIVERSAL TIME /UTC/ MODEL CYCLE...THE NWS WILL CHANGE THE 
STRUCTURE OF THE NESTED GRID MODEL /NGM/ MODEL OUTPUT STATISTICS 
/MOS/ BUFR PRODUCTS. THE COMMUNICATION HEADERS FOR THESE PRODUCTS 
ARE JSMT41 - 49 KWBC.

THE NGM MOS BUFR PRODUCTS WILL NO LONGER BE SEGMENTED INTO GROUPS 
OF STATIONS WITHIN EACH WMO HEADER. EACH BUFR PRODUCT WILL NOW 
CONSIST OF ONE GROUP CONTAINING ALL STATIONS FOR THAT HEADER.

FOR AWIPS USERS...THE OB3.2 MAINTENANCE RELEASE MUST BE INSTALLED 
PRIOR TO 1200 UTC SEPTEMBER 7 2004 FOR THE LOCAL AWIPS MOS PROGRAM 
/LAMP/ SOFTWARE AND THE NGM MOS DEPICTABLES TO FUNCTION PROPERLY.

A BINARY DATA FILE WITH THE NEW STRUCTURE CAN BE FOUND AT /USE 
LOWER CASE LETTERS/:

   HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP/TIN/NGMBUFR.TEST

LINKS TO THESE PRODUCTS...ALONG WITH DESCRIPTIONS...CAN BE FOUND 
AT /USE LOWER CASE LETTERS/:

   HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP/PRODUCTS.SHTML

IF YOU HAVE ANY QUESTIONS OR COMMENTS CONCERNING THIS CHANGE... 
PLEASE CONTACT:

   REBECCA COSGROVE 
   MDL/SILVER SPRING MARYLAND 
   PHONE:   301-713-0023 EXT. 124 
   E-MAIL:  REBECCA.COSGROVE@NOAA.GOV
                    
THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE 
ONLINE AT /USE LOWER CASE LETTERS/:

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