20060807: NDFD-wind gust element

[Linda Miller]

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 at NOAA.GOV

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 at NOAA.GOV

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 at NOAA.GOV

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 at unidata.ucar.edu
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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