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SERVICE CHANGE NOTICE 07-53
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1000 AM EDT TUE OCT 16 2007 

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/ PARTNERS AND OTHER USERS...NWS EMPLOYEES

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

SUBJECT:  CHANGES TO THE OFFSHORE MARINE ZONE BOUNDARY IN
          THE NORTH ATLANTIC OCEAN...HUDSON CANYON TO BALTIMORE
          CANYON: EFFECTIVE APRIL 1 2008

ON TUESDAY APRIL 1 2008 AT 1200 UNIVERSAL COORDINATED TIME /UTC/ 
OR 0800 EASTERN DAYLIGHT TIME /EDT/...THE NWS OCEAN PREDICTION 
CENTER /OPC/ WILL SPLIT ITS OFFSHORE MARINE ZONE IN THE NORTH 
ATLANTIC OCEAN...HUDSON CANYON TO BALTIMORE CANYON...INTO TWO NEW 
OFFSHORE MARINE ZONES TO PROVIDE GREATER SPECIFICITY IN THE 
OFFSHORE MARINE ZONE FORECASTS FOR THE NORTH ATLANTIC. THE FIRST 
NEW ZONE WILL BE NAMED HUDSON TO BALTIMORE CANYON. THE SECOND NEW 
ZONE WILL BE NAMED BALTIMORE CANYON TO THE HAGUE LINE SOUTH OF 
1000 FATHOMS.  THE TWO NEW ZONES ARE LISTED IN TABLE 3.

TABLE 1. PRODUCT THAT WILL BE AFFECTED BY THE TWO NEW OFFSHORE 
MARINE ZONES.

PRODUCT NAME                          WMO HEADING    AWIPS ID
OFFSHORE WATERS FORECAST 	      FZNT22 KWBC    OFFNT2

TABLE 2. CURRENT OFFSHORE MARINE ZONE AND CORRESPONDING 
UNIVERSAL GEOGRAPHIC CODE /UGC/ THAT WILL BE REPLACED EFFECTIVE  
APRIL 1 2008.

OFFSHORE MARINE ZONE			UGC

HUDSON CANYON TO BALTIMORE CANYON	ANZ084
	
TABLE 3. THE TWO NEW OFFSHORE MARINE ZONES AND CORRESPONDING UGCS 
EFFECTIVE APRIL 1 2008.

OFFSHORE MARINE ZONES			UGC

HUDSON TO BALTIMORE CANYON        	ANZ084

BALTIMORE CANYON TO THE HAGUE LINE	ANZ094		
SOUTH OF 1000 FATHOMS         
                              
AN UPDATED ZONE MAP SHAPEFILE CONTAINING THE REALIGNED ZONES IS 
AVAILABLE FOR DOWNLOAD FROM THE FOLLOWING WEBSITE /USE LOWER
CASE LETTERS/

HTTP://WWW.NWS.NOAA.GOV/GEODATA/CATALOG/WSOM/HTML/MARINEZONES.HTM

THE DEMARCATION LINE FOR THE NEW ZONES EXTENDS FROM 39.3 NORTH 
71.9 WEST...SOUTHWESTWARD TO 37.7 NORTH 72.9 WEST.

MAPS SHOWING THE BOUNDARIES OF THE NEW ZONES ARE POSTED ON THE 
OPC WEB PAGE /USE LOWER CASE LETTERS/:
 
HTTP://WWW.OPC.NCEP.NOAA.GOV/IMAGES/NEWZONES.GIF

BECAUSE OF THESE CHANGES...CUSTOMERS MUST REPROGRAM AFFECTED 
HARDWARE AND SOFTWARE TO RECEIVE THE NEW UGCS.

IF YOU HAVE ANY QUESTIONS ABOUT THESE CHANGES...PLEASE CONTACT:

     DAVID FEIT                                     
     NATIONAL WEATHER SERVICE
     OCEAN PREDICTION CENTER          
     FORECAST BRANCH CHIEF     
     5200 AUTH ROAD
     CAMP SPRINGS MD 20746               
     PHONE: 301-763-8000 EXTENSION 7401       
     E-MAIL: DAVID.FEIT@NOAA.GOV       

THIS NOTICE AND OTHER SERVICE CHANGE NOTICES ARE AVAILABLE 
ONLINE AT /USE LOWER CASE LETTERS/:

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

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