20060807: NDFD-wind gust element

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NOUS41 KWBC 071826
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 06-55
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
226 PM EDT MON AUG 7 2006

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: GLENN AUSTIN
         DIGITAL SERVICES TRANSITION MANAGER
         OFFICE OF CLIMATE WATER AND WEATHER SERVICES

SUBJECT: NEW EXPERIMENTAL WIND GUST ELEMENT TO BE ADDED TO THE NATIONAL DIGITAL FORECAST DATABASE /NDFD/ ON SEPTEMBER 6 2006 /SEPTEMBER 7 2006 IN GUAM/

ON SEPTEMBER 6 2006 AT 1400 UNIVERSAL COORDINATED TIME /UTC/...SEPTEMBER 7 AT MIDNIGHT LOCAL GUAM TIME...WIND GUST WILL BE ADDED TO NDFD AS A NEW EXPERIMENTAL ELEMENT FOR THE LOWER 48 STATES...INCLUDING ALL 16 PRE-DEFINED SUBSECTORS... PUERTO RICO/VIRGIN ISLANDS...HAWAII...AND GUAM.

THE WIND GUST ELEMENT IS PRODUCED AT 5 KILOMETER SPATIAL RESOLUTION. 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 WILL BE THE VALUE OF THE SUSTAINED WIND FORECAST ELEMENT FROM NDFD.

USERS WHO PULL NDFD ELEMENTS IN GRIDDED BINARY /GRIB2/ FORMAT FROM THE NWS ANONYMOUS FILE TRANSFER PROTOCOL /FTP/ SERVER...EITHER VIA THE INTERNET OR VIA THE FAMILY OF SERVICES SERVER ACCESS SERVICE...MAY NEED TO UPDATE THEIR PROCEDURES AND/OR SCRIPTS IF THEY WANT TO ACCESS THIS NEW ELEMENT. DETAILED INFORMATION FOR FTP AND ALL OTHER USERS REGARDING THIS CHANGE IS AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:

    HTTP://WWW.WEATHER.GOV/NDFD/OPER_IMPLEM_WGUST.HTM

MORE DETAILS REGARDING THIS ELEMENT WILL BE ISSUED IN A PRODUCT DESCRIPTION DOCUMENT /PDD/ PRIOR TO THE BEGINNING OF THE EXPERIMENTAL PERIOD. AT THAT TIME...THE PDD WILL BE FOUND ONLINE AT /USE LOWER CASE LETTERS/:

    HTTP://PRODUCTS.WEATHER.GOV/VIEWLISTE.PHP

IF SEPTEMBER 6 2006 IS A CRITICAL WEATHER DAY...THIS IMPLEMENTATION MAY BE POSTPONED. IN THAT CASE USERS WILL BE NOTIFIED OF THAT DECISION AS FAR IN ADVANCE AS POSSIBLE. COMMENTS AND FEEDBACK ON THE EXPERIMENTAL WIND GUST ELEMENT WILL BE ACCEPTED THROUGH MARCH 6 2007. LINKS TO ONLINE SURVEYS ARE /USE LOWER CASE LETTERS/: GRIB2 USERS: HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=NDFD-GRIDS

FOR USERS OF NDFD GRAPHICS:
HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=EGF

FOR USERS OF XML SOAP SERVICE:
HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=XMLSOAP

THIS FORECAST ELEMENT WILL REMAIN EXPERIMENTAL UNTIL ALL FEEDBACK IS ASSESSED AND A TECHNICAL ANALYSIS IS COMPLETED. AT THAT TIME NWS WILL DETERMINE WHETHER TO TRANSITION THE EXPERIMENTAL WIND GUST ELEMENT TO OPERATIONAL STATUS... DISCONTINUE THE PRODUCT...OR REVISE AND RETAIN WIND GUST AS AN EXPERIMENTAL ELEMENT.

FOR GENERAL QUESTIONS REGARDING THE NDFD...PLEASE EMAIL:

    NWS.NDFD@xxxxxxxx

FOR 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:

    DOUGLAS YOUNG
    NATIONAL WEATHER SERVICE
    OCWWS...DIGITAL SERVICES
    1325 EAST WEST HIGHWAY
    SILVER SPRING MARYLAND 20910
    EMAIL:  DOUGLAS.YOUNG@xxxxxxxx

THIS AND ALL OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE AT /USE LOWER CASE LETTERS/:

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

$$
NNNN

--
Linda Miller - lmiller@xxxxxxxxxxxxxxxx
Community Services, Unidata
University Corporation for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307-3000
303-497-8646 fax: 303-497-8690

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