NOUS41 KWBC 221949
PNSWSH

SERVICE CHANGE NOTICE 07-03
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
250 PM EST THU FEB 22 2007

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

FROM:	   THERESE Z. PIERCE
	   CHIEF...MARINE AND COASTAL SERVICES BRANCH

SUBJECT:   CHANGES TO THE TROPICAL CYCLONE GUIDANCE MESSAGE 
           /WHXX01/: EFFECTIVE MAY 15 2007

EFFECTIVE MAY 15 2007...THE WHXX01 MESSAGE ISSUED BY THE TROPICAL 
PREDICTION CENTER/NATIONAL HURRICANE CENTER /TPC/NHC/ AND THE 
CENTRAL PACIFIC HURRICANE CENTER /CPHC/ WILL HAVE THE FOLLOWING 
CHANGES.  

1.  THE ISSUING OFFICE AND DATE/TIME LINE WILL BE ADDED TO THE 
MASS NEWS DISSEMINATOR HEADER BLOCK.

FOR THE ATLANTIC AND EAST PACIFIC BASINS THE MASS NEWS 
DISSEMINATOR HEADER BLOCK WILL BE:

TROPICAL CYCLONE GUIDANCE MESSAGE
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1444 UTC WED JAN 10 2007

FOR THE CENTRAL PACIFIC BASIN THE MASS NEWS DISSEMINATOR HEADER 
BLOCK WILL BE:

TROPICAL CYCLONE GUIDANCE MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1444 UTC WED JAN 10 2007

2.  THE SHALLOW BETA ADVECTION MODEL /BAMS/ WILL BE ADDED.

3.  THE STATISTICAL TRACK MODELS /A98E/ AND /P91E/ WILL BE 
DISCONTINUED.

4.  THE PRODUCT WILL BE LEFT JUSTIFIED.

THE FOLLOWING PRODUCTS ARE AFFECTED BY THESE CHANGES:

HURRICANE BASIN		AWIPS ID	WMO HEADING
ATLANTIC		CHGHUR		WHXX01 KWBC
EASTERN PACIFIC/	CHGE77		WHXX01 KMIA
CENTRAL PACIFIC	

AN EXAMPLE OF THE REVISED MESSAGE FORMAT AND CONTENTS CAN BE 
FOUND ONLINE AT /USE LOWER CASE LETTERS/:

	HTTP://WWW.NHC.NOAA.GOV/WHXX01_SAMPLE_2007.SHTML

THERE ARE NO CHANGES TO THE AWIPS IDENTIFIERS...WMO PRODUCT 
HEADINGS OR PRODUCT ISSUANCE TIMES.   

IF YOU HAVE QUESTIONS...PLEASE CONTACT:

    SCOTT KISER
    NATIONAL WEATHER SERVICE
    MARINE AND COASTAL SERVICES BRANCH
    1325 EAST WEST HWY
    SILVER SPRING MARYLAND 20910
    PHONE:  301-713-1677 EXTENSION 121

THIS NOTICE AND OTHER SERVICE CHANGE NOTICES CAN BE FOUND
ONLINE /USE LOWER CASE LETTERS/:

    HTTP://WWW.WEATHER.GOV/OS/NOTIF.HTM

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