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TECHNICAL IMPLEMENTATION NOTICE 04-34
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1250 PM EDT WED JUN 30 2004

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/ CUSTOMERS AND PARTNERS
          ...AND NWS EMPLOYEES

FROM:	  GREG MANDT
     	  DIRECTOR...OFFICE OF CLIMATE WATER AND WEATHER SERVICES

SUBJECT:  UPDATE...NATIONAL WEATHER SERVICE NATIONAL DIGITAL 
          FORECAST DATABASE /NDFD/ STATUS

REFER TO: TECHNICAL IMPLEMENTATION NOTICE 04-18 SENT 
	  MARCH 31 2004

ON DECEMBER 1 2004...THE NDFD WILL BECOME AN OFFICIAL NWS PRODUCT.  
SEVERAL IF NOT ALL OF THE FOLLOWING ELEMENTS WILL BECOME OFFICIAL 
PRODUCTS:

MAXIMUM TEMPERATURE 
MINIMUM TEMPERATURE
PROBABILITY OF PRECIPITATION /POP12/
WEATHER
SKY COVER
QUANTITATIVE PRECIPITATION FORECASTS /QPF/
WIND DIRECTION AND WIND SPEED
SNOW AMOUNT
TEMPERATURE 
DEWPOINT
SIGNIFICANT WAVE HEIGHT

THE ANNOUNCEMENT OF WHICH ELEMENTS WILL BECOME OFFICIAL WILL OCCUR NO 
LATER THAN SEPTEMBER 15 2004.  THE OFFICIAL ELEMENTS WILL BE LOCATED 
AT THE FOLLOWING URL ON DECEMBER 1... /USE LOWER CASE LETTERS/ EXCEPT 
FOR THE FOLLOWING CAPITALS: SL...ST...DF...DC...AR

FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/ST.OPNL/DF.GR2/DC.NDFD/AR.CONUS/


THE REMAINING EXPERIMENTAL GRIDDED ELEMENTS WILL CONTINUE TO BE 
ACCESSED AT THE FOLLOWING URL.. ./USE LOWER CASE LETTERS/ EXCEPT FOR 
THE FOLLOWING CAPITALS SL...ST...DF...DC...AR:

FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/ST.EXPR/DF.GR2/DC.NDFD/AR.CONUS/


THERE WILL BE NO OVERLAP OF DATA BETWEEN THE TWO DIRECTORIES. ONCE AN 
ELEMENT MOVES TO THE OPERATIONAL DIRECTORY...IT WILL NO LONGER BE 
ACCESSIBLE IN THE EXPERIMENTAL DIRECTORY.

FROM 1 JULY...THRU 31 AUGUST...USERS OF THE EXPERIMENTAL GRID PRODUCTS 
ARE ASKED TO PROVIDE FEEDBACK ON WHICH ELEMENTS ARE MOST NEEDED... AND 
WHICH APPEAR READY TO BE DESIGNATED OFFICIAL.   

DATA FROM THE NDFD ARE PROVIDED IN GRIB (GRIDDED BINARY) FORMAT.  

MORE SPECIFIC INFORMATION ON THE CONTENT OF THESE FILES AND FTP
INSTRUCTIONS CAN BE OBTAINED AT THE URL LISTED BELOW /USE LOWER
CASE LETTERS/:

   HTTP://WWW.NWS.NOAA.GOV/NDFD/TECHNICAL/TECHNICAL.HTM

IF YOU HAVE FEEDBACK OR QUESTIONS REGARDING THIS NOTICE...PLEASE 
CONTACT:

   LEROY SPAYD
   CHIEF...METEOROLOGICAL SERVICES DIVISION
   NWS HEADQUARTERS
   OFFICE OF CLIMATE WATER AND WEATHER SERVICES
   EMAIL: LEROY.SPAYD@NOAA.GOV

IF YOU HAVE TECHNICAL QUESTIONS REGARDING THE NDFD DATA...PLEASE
CONTACT:

   DAVID RUTH
   CHIEF...MESOSCALE PREDICTION BRANCH
   NWS HEADQUARTERS
   OFFICE OF SCIENCE AND TECHNOLOGY
   EMAIL: DAVID.RUTH@NOAA.GOV

THIS INFORMATION IS ALSO POSTED ON THE NWS DATA MANAGEMENT CHANGE 
NOTICES WEB PAGE AT THE URL LISTED BELOW /USE LOWER CASE
LETTERS/:

   HTTP://WWW.NWS.NOAA.GOV/DATAMGMT/NOTICES.SHTML

THIS AND ALL OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE
POSTED ON /USE LOWER CASE LETTERS/:

   HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

$$
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