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-------- Original Message --------901 NOUS41 KWBC 291305
PNSWSH SERVICE CHANGE NOTICE 08-01 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 805 AM EST TUE JAN 29 2008 TO: SUBSCRIBERS:-FAMILY OF SERVICES -NOAA WEATHER WIRE SERVICE -EMERGENCY MANAGERS WEATHER INFORMATION NETWORK OTHER NWS PARTNERS...USERS AND NWS EMPLOYEES
FROM: THERESE Z. PIERCE CHIEF...MARINE AND COASTAL SERVICES BRANCHSUBJECT: CHANGES TO THE AVIATION TROPICAL CYCLONE ADVISORY PRODUCT: EFFECTIVE MAY 15 2008
EFFECTIVE MAY 15 2008... THE TROPICAL PREDICTION CENTER/NATIONAL HURRICANE CENTER /NHC/ AND THE CENTRAL PACIFIC HURRICANE CENTER /CPHC/ WILL CHANGE THE PRODUCT FORMAT OF THE AVIATION TROPICAL CYCLONE ADVISORY PRODUCT. MOST OF THESE CHANGES WILL BE TRANSPARENT TO USERS.
THE FOLLOWING PRODUCTS ARE AFFECTED BY THIS CHANGE: HURRICANE BASIN AWIPS IDWMO HEADING ATLANTICTCANT/1-5/FKNT/21-25/ KNHC EASTERN PACIFIC TCAPZ/1-5/FKPZ/21-25/ KNHC CENTRAL PACIFIC TCAPA/1-5/FKPA/21-25/ PHFO THE FOLLOWING CHANGES WILL OCCUR ON MAY 15 2008: 1. THE POSITION AND INTENSITY INFORMATION FOR FORECAST HOURS OF+06...+12...+18...AND +24 WILL BE CALCULATED FOR THE ROUTINE ADVISORY TIMES OF 0300 COORDINATED UNIVERSAL TIME /Z/...0900Z... 1500Z...AND 2100Z. PREVIOUSLY THE POSITION AND INTENSITY INFORMATION WERE CALCULATED FOR THE SYNOPTIC TIMES OF 0000Z...0600Z...1200Z...AND 1800Z.
2. THE POSITION AND INTENSITY INFORMATION FOR THE FORECAST HOURS WILL BE DERIVED FROM INTERPOLATED FORECAST INFORMATION.
NOTE: THE VALID TIMES IN THE MESSAGE WILL NOT CHANGE DURING ISSUANCE OF SPECIAL ADVISORIES.
3. A REMARKS SECTION WILL BE ADDED TO THE MESSAGE AND WILL CONTAIN THE FOLLOWING CAUTIONARY STATEMENT: THE FORECAST INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000...0600...1200...AND 1800Z.
BELOW IS AN EXAMPLE OF THE NEW PRODUCT FORMAT EFFECTIVE MAY 15 2008:
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:027PSN:N3000 W08012 MOV:N 13KT
C:0998HPA
MAX WIND:045KT
FCST PSN + 06 HR:211500 N3106 W07951
FCST MAX WIND + 06 HR:045KT
FCST PSN + 12 HR:212100 N3206 W07930
FCST MAX WIND + 12 HR:050KT
FCST PSN + 18 HR:220300 N3321 W07903
FCST MAX WIND + 18 HR:045KT
FCST PSN + 24 HR:220900 N3436 W07836
FCST MAX WIND + 24 HR:040KT
NXT MSG:20071021/1500Z
RMKTHE FORECAST POSITION INFORMATION IN
THIS PRODUCT IS INTERPOLATED FROM
OFFICIAL FORECAST DATA VALID AT 0000...
0600...1200...AND 1800Z.
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
AT /USE LOWER CASE LETTERS/:
WWW.NWS.NOAA.GOV/OM/NOTIF/HTM
$$
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