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Service Change Notice


NOUS41 KWBC 131735
PNSWSH

SERVICE CHANGE NOTICE 07-07
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
135 PM EDT TUE MAR 7 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:  ENHANCEMENT TO AVIATION TROPICAL CYCLONE ADVISORY 
          PRODUCT: EFFECTIVE MAY 15 2007

EFFECTIVE MAY 15 2007...THE TROPICAL PREDICTION CENTER/NATIONAL 
HURRICANE CENTER /NHC/ AND THE CENTRAL PACIFIC HURRICANE CENTER 
/CPHC/ WILL PROVIDE FORECAST INFORMATION AT THE 6-HOUR FORECAST 
INTERVAL.

THE FOLLOWING PRODUCTS ARE AFFECTED BY THIS CHANGE:

HURRICANE BASIN         AWIPS ID          WMO HEADING

ATLANTIC                TCANT/1-5/      FKNT/21-25/ KNHC
EASTERN PACIFIC         TCAPZ/1-5/      FKPZ/21-25/ KNHC
CENTRAL PACIFIC         TCAPA/1-5/      FKPA/21-25/ PHFO

CURRENTLY FORECAST POSITIONS AND INTENSITIES ARE PROVIDED AT 
INTERVALS OF 12...18 AND 24 HOURS. EFFECTIVE MAY 15 2007 THE 
FORECAST POSITION AND INTENSITY WILL ALSO BE PROVIDED AT 6 HOURS.   

AN EXAMPLE OF THE NEW PRODUCT FORMAT EFFECTIVE ON MAY 15 2007 IS 
PROVIDED:

FKNT25 KNHC 310900
TCANT5
TROPICAL STORM TEST ICAO ADVISORY NUMBER  27
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL242007
0900 UTC SUN OCT 21 2007

TC ADVISORY
DTG:                            20071021/0900Z
TCAC:                           KNHC
TC:                             ERNESTO
NR:                             027
PSN:                            N3000 W08012 
MOV:                            N 13KT
C:                              0998HPA
MAX WIND:                       045KT
FCST PSN + 06 HR:               211200 N3106 W07951
FCST MAX WIND + 06 HR:  045KT
FCST PSN + 12 HR:               211800 N3206 W07930
FCST MAX WIND + 12 HR:  050KT
FCST PSN + 18 HR:               220000 N3321 W07903
FCST MAX WIND + 18 HR:  045KT
FCST PSN + 24 HR:               220600 N3436 W07836
FCST MAX WIND + 24 HR:  040KT
NXT MSG:                        20071021/1500Z

IF YOU HAVE QUESTIONS...PLEASE CONTACT:

    SCOTT KISER
    NATIONAL WEATHER SERVICE
    MARINE AND COASTAL SERVICES BRANCH
    1325 EAST WEST HWY ROOM 13126
    SILVER SPRING MARYLAND 20910
    PHONE:  301-713-1677 EXTENSION 121

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

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

$$
NNNN


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Page last modified: Tuesday, 20-Mar-2007 18:23:42 UTC