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-------- Original Message --------329 NOUS41 KWBC 171733
PNSWSH
TECHNICAL IMPLEMENTATION NOTICE 07-XX
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
135 PM EDT FRI AUG 17 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 USERS...AND NWS EMPLOYEES
FROM: ELI JACKS
CHIEF...FIRE AND PUBLIC WEATHER SERVICES BRANCH
SUBJECT: WIND GUST ELEMENT TO BECOME OPERATIONAL IN THE
NATIONAL DIGITAL FORECAST DATABASE /NDFD/ ON
SEPTEMBER 20 2007 AT 1400 UTC /SEPTEMBER 21 2007 AT
MIDNIGHT LOCAL TIME IN GUAM/
EFFECTIVE SEPTEMBER 20 2007 AT 1400 COORDINATED UNIVERSAL TIME
/UTC/...SEPTEMBER 21 2007 AT MIDNIGHT LOCAL TIME IN GUAM...THE
WIND GUST ELEMENT IN THE NDFD WILL BE UPGRADED FROM EXPERIMENTAL
TO OPERATIONAL STATUS. WIND GUST HAS BEEN AN EXPERIMENTAL
ELEMENT IN THE NDFD SINCE SEPTEMBER 2006.
THE WIND GUST ELEMENT IS AVAILABLE FROM THE NDFD AT A 5 KILOMETER SPATIAL RESOLUTION FOR THE ENTIRE CONTERMINOUS U.S. /CONUS/...THE 16 PRE-DEFINED NDFD CONUS SUBSECTORS...PUERTO RICO AND THE VIRGIN ISLANDS...HAWAII AND GUAM. FORECASTS ARE ISSUED FOR 3 HOUR PERIODS OUT TO 72 HOURS. WHEN WIND GUSTS ARE NOT EXPECTED FOR A PARTICULAR PERIOD...THE WIND GUST FORECAST IS THE VALUE OF THE SUSTAINED WIND FORECAST FROM THE NDFD.
USERS OF THE NDFD IN EXTENSIBLE MARKUP LANGUAGE /XML/ VIA WEB SERVICE...NDFD IN GEOGRAPHIC MARKUP LANGUAGE /GML/ VIA WEB FEATURE SERVICE...AND/OR NDFD GRAPHICS VIA INTERNET ARE NOT DIRECTLY IMPACTED BY THIS IMPLEMENTATION. THOSE USERS CAN USE THE SAME METHODS THEY CURRENTLY USE TO ACQUIRE WIND GUST FOR THE DOMAIN/S/ OF INTEREST AND THIS CHANGE WILL BE TRANSPARENT TO THEM. FOR XML AND GML USERS...THERE IS NO DISTINCTION IN THE DATA ITSELF BETWEEN EXPERIMENTAL AND OPERATIONAL ELEMENTS. FOR GRAPHICS USERS...THE ONLY CHANGE WILL BE THE REMOVAL OF THE EXPERIMENTAL LABEL CURRENTLY ON THE WIND GUST GRAPHICS ON THE ABOVE EFFECTIVE DATE.
THIS CHANGE PRIMARILY AFFECTS USERS WHO PULL THESE ELEMENTS IN GRIDDED BINARY 2 /GRIB2/ FORMAT FROM THE NWS FILE TRANSFER PROTOCOL /FTP/ SERVER...EITHER VIA THE INTERNET OR VIA THE FAMILY OF SERVICES /FOS/ SERVER ACCESS SERVICE...AND USERS WHO PULL HTML FILES FROM THE NWS HTTP SERVER. THOSE USERS WILL NEED TO PULL THE WIND GUST ELEMENT FOR THE DOMAIN/S/ OF INTEREST FROM A DIFFERENT URL/S/ AND MAY NEED TO UPDATE PROCEDURES AND/OR SCRIPTS TO ENSURE CONTINUED RECEIPT OF THE DATA.
ADDITIONAL DETAILS ABOUT THIS IMPLEMENTATION...INCLUDING SPECIFIC INFORMATION FOR FTP AND HTTP USERS...ARE AVAILABLE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/WGUST_OPNL_IMPLEM.HTM
IF SEPTEMBER 20 2007 IS A CRITICAL WEATHER DAY...THIS
IMPLEMENTATION MAY BE POSTPONED. IN THAT CASE USERS WILL BE
NOTIFIED OF THAT DECISION VIA A TECHNICAL IMPLEMENTATION NOTICE
AS FAR IN ADVANCE AS POSSIBLE.
DETAILED INFORMATION ON OPTIONS FOR ACCESSING AND USING THE NDFD IS AVAILABLE AT /USE LOWER CASE LETTERS/:
HTTP://NDFD.WEATHER.GOV/TECHNICAL.HTM
USERS ARE ENCOURAGED TO CONTINUE TO PROVIDE COMMENTS AND FEEDBACK
ON BOTH EXPERIMENTAL AND OPERATIONAL NDFD ELEMENTS VIA ONE OF THE
BRIEF ONLINE SURVEY AND COMMENT FORMS POSTED AT /USE LOWER CASE
LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/CUSTOMER.HTM
FOR GENERAL QUESTIONS REGARDING THE NDFD...PLEASE EMAIL:
NWS.NDFD@xxxxxxxx
IF YOU HAVE TECHNICAL QUESTIONS REGARDING THE NDFD DATA...PLEASE
CONTACT:
DAVID RUTH
CHIEF...MESOSCALE PREDICTION BRANCH
NATIONAL WEATHER SERVICE
OFFICE OF SCIENCE AND TECHNOLOGY
1325 EAST WEST HIGHWAY
SILVER SPRING MARYLAND 20910
EMAIL: DAVID.RUTH@xxxxxxxx
FOR QUESTIONS REGARDING THIS NOTICE...PLEASE CONTACT:
ANDY HORVITZ
NATIONAL WEATHER SERVICE
OFFICE OF CLIMATE WATER AND WEATHER SERVICES
FIRE AND PUBLIC WEATHER SERVICES BRANCH
1325 EAST WEST HIGHWAY
SILVER SPRING MARYLAND 20910
EMAIL: ANDY.HORVITZ@xxxxxxxx
ALL TECHNICAL IMPLEMENTATION NOTICES SPECIFICALLY RELATED TO THE
NDFD ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/NDFD/TINS.HTM
THIS AND ALL NWS TECHNICAL IMPLEMENTATION NOTICES ARE POSTED AT
/USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$
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