NOUS41 KWBC 301253 AAA
PNSWSH

SERVICE CHANGE NOTICE 06-03...AMENDED 
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
745 AM EST THU MAR 30 2006

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...AND NWS 
          EMPLOYEES

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

SUBJECT:  AMENDED...NEW PRODUCTS FOR UNITED STATES AIR FORCE 
          HIGH DENSITY OBSERVATION DATA FROM TROPICAL CYCLONE 
          WC-130J RECONNAISSANCE AIRCRAFT: EFFECTIVE JUNE 1 2007

AMENDED TO CHANGE EFFECTIVE DATE FROM JUNE 1 2006 TO JUNE 1 2007 
IN THE SUBJECT LINE AND MESSAGE BODY.

THE DEPARTMENT OF DEFENSE IS NOW USING WC-130J AIRCRAFT AS ITS 
FLEET OF HURRICANE HUNTER PLANES...REPLACING THE OLDER WC-130H 
AIRCRAFT FOR THIS MISSION. THE ENHANCED CAPABILITY OFFERED BY 
THE WC-130J IS COLLECTION AND TRANSMISSION OF HIGH DENSITY/HIGH 
ACCURACY DATA COLLECTIVELY REFERRED TO AS HIGH DENSITY 
OBSERVATIONS /HDOB/.

THE TRANSMISSION OF THESE NEW PRODUCTS...ORIGINALLY EXPECTED IN 
2006 AND DETAILED IN SCN 06-03 ON JANUARY 24 2006...HAS BEEN 
DELAYED DUE TO CHANGES IN THE RETROFIT AND SOFTWARE 
IMPLEMENTATION SCHEDULE FOR THE WC-130J AIRCRAFT.

THEREFORE THROUGH THE ENTIRE 2006 HURRICANE SEASON...THIS DATA 
WILL BE ROUTED VIA THE NWS FAMILY OF SERVICES /FOS/ SXXX50 
MESSAGE. USERS MUST MONITOR THE SXXX50 MESSAGE TO RECEIVE ALL AIR 
FORCE HDOB DATA THROUGH 2006. 

EFFECTIVE JUNE 1 2007 THE TROPICAL PREDICTION CENTER/NATIONAL 
HURRICANE CENTER /NHC/ WILL BEGIN ISSUANCE OF THREE NEW PRODUCTS 
FOR THE TRANSMISSION OF AIR FORCE HDOB.

ONCE INTRODUCED THE NEW PRODUCTS WILL SERVE AS THE PRIMARY MEANS 
OF DISSEMINATION FOR AIR FORCE HDOB DATA. USERS WHO WISH TO 
CONTINUE RECEIVING THIS DATA WILL NEED TO MAKE THE FOLLOWING 
CHANGES IN THEIR WMO COMMUNICATIONS DATABASES BY JUNE 1 2007:

FOR THE ATLANTIC:
PRODUCT NAME				 WMO HEADING/ACTION
AIRCRAFT HIGH DENSITY OBSERVATIONS	 URNT15 KNHC/ADD

FOR THE EASTERN AND CENTRAL PACIFIC:
PRODUCT NAME				 WMO HEADING/ACTION
AIRCRAFT HIGH DENSITY OBSERVATIONS	 URPN15 KNHC/ADD

FOR THE WESTERN PACIFIC:
PRODUCT NAME			         WMO HEADING/ACTION
AIRCRAFT HIGH DENSITY OBSERVATIONS	 URPA15 KNHC/ADD

THESE NEW PRODUCTS WILL BE PROVIDED ON THE FOS... EMWIN... 
NOAAPORT...AND NWWS.

HDOB MESSAGE FORMATS ARE PROVIDED IN NATIONAL HURRICANE 
OPERATIONS PLAN /NHOP/ APPENDIX G. THE NHOP IS PROVIDED ONLINE AT 
/USE LOWER CASE LETTERS/:

	HTTP://WWW.OFCM.GOV

THE 2005 NHOP IS NOW POSTED ON THE INTERNET AND THE 2006 NHOP 
WILL BE POSTED BY JUNE 1 2006.

A NEW SERVICE CHANGE NOTICE WILL BE ISSUED IN EARLY 2007 ALERTING 
USERS TO THE HDOB PRODUCT CHANGES EFFECTIVE WITH THE 2007 
HURRICANE SEASON. 
                       
IF YOU HAVE ANY QUESTIONS...PLEASE CONTACT:

     TIMOTHY SCHOTT
     NATIONAL WEATHER SERVICE
     1325 EAST WEST HIGHWAY
     ROOM 13124
     SILVER SPRING MARYLAND 20910

     PHONE: /301/ 713 1677 EXTENSION 122

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

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

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