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TECHNICAL IMPLEMENTATION NOTICE 06-87...AMENDED
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1230 PM EDT FRI JUN 1 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/
             CUSTOMERS AND PARTNERS...NWS EMPLOYEES

FROM:        PAUL HIRSCHBERG
    	     SCIENCE PLANS BRANCH CHIEF
	     OFFICE OF SCIENCE AND TECHNOLOGY /OST/

SUBJECT:     AMENDED: ADDITION OF NEW ELEMENTS TO THE 
	     GFS-BASED GRIDDED MOS GUIDANCE: EFFECTIVE 
	     JUNE 5 2007

REFER TO:    TECHNICAL IMPLEMENTATION NOTICE /TIN/ 06-87
	     TRANSMITTED ON NOVEMBER 28 2006...AMENDED TIN 
             06-87 TRANSMITTED ON MARCH 8 2007... SECOND AMENDED 
             TIN 06-87 TRANSMITTED ON MAY 10 2007 AND SECOND 
             AMENDED TIN 05-56 TRANSMITTED JULY 27 2006.

THIS TIN IS BEING AMENDED TO REFLECT A DELAY IN GFS-BASED GRIDDED 
MOS PRODUCT DELIVERY.

DURING THE PROCESS OF TESTING IT WAS DETERMINED THAT THE ADDITION 
OF THE NEW ELEMENTS TO THE GFS-BASED GRIDDED MOS GRIB2 PRODUCTS 
WILL RESULT IN LATER PRODUCT DELIVERY TIMES. THE DAY 1-3 PRODUCT 
DELIVERY WILL BE DELAYED APPROXIMATELY 10 MINUTES FROM THE 
CURRENT DELIVERY TIME AND THE DAY 4-7 PRODUCT DELIVERY BY 
APPROXIMATELY 15 MINUTES. 

ATTENTION USERS OF THE MODEL OUTPUT STATISTICS /MOS/ GUIDANCE:

ON TUESDAY...JUNE 5 2007...THE NWS WILL PRODUCE ADDITIONAL 
ELEMENTS IN THE GLOBAL FORECAST SYSTEM /GFS/ -BASED GRIDDED MOS 
GUIDANCE. THESE PRODUCTS WILL BE DISSEMINATED ON THE SATELLITE 
BROADCAST NETWORK /SBN/...NOAAPORT...AND THE NWS FTP SERVER. THE 
PRODUCTS WILL BE IN GRIB2 FORMAT. THE COMMUNICATION IDENTIFIERS 
ARE SHOWN IN TABLE 1 BELOW. THE GRIDDED MOS PRODUCTS WILL CONTAIN 
GUIDANCE ON THE 5 KM NATIONAL DIGITAL FORECAST DATABASE /NDFD/ 
CONUS GRID AT PROJECTIONS OF 1 TO 7 DAYS IN ADVANCE. GRIDS WILL 
BE GENERATED FROM THE 0000 AND 1200 UTC MODEL RUNS. 

GUIDANCE WILL BE MADE AVAILABLE FOR THE FOLLOWING ADDITIONAL 
ELEMENTS:

     SKY COVER
     WIND GUSTS
     QUANTITATIVE PRECIPITATION /6 AND 12 HOUR/
     24-HR SNOWFALL AMOUNT

GRIB2 GRIDDED MOS GUIDANCE IS AVAILABLE ON THE NWS FTP SERVER AT 
/USE LOWER CASE EXCEPT FOR SL...ST...DF... DC...GT...AND AR/:

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

TABLE 1: COMMUNICATION IDENTIFIERS FOR THE GFS-BASED GRIDDED MOS 
GRIB2 PRODUCTS SCHEDULED TO BE IMPLEMENTED.  

     WMO HEADING        ELEMENT

     LAUXXX KWBQ        SKY COVER
     LIUXXX KWBQ        6-HR QUANTITATIVE PRECIPITATION
     LSUXXX KWBQ        24-HR SNOWFALL AMOUNT  
     LVUXXX KWBQ        12-HR QUANTITATIVE PRECIPITATION
     LWUXXX KWBQ        WIND GUSTS

EACH GRIB2 PRODUCT HAS A UNIQUE WMO HEADING. LISTED BELOW ARE 
REPRESENTATIONS OF THE WMO HEADINGS.  A COMPLETE LIST OF GRIDDED 
MOS WMO HEADINGS IS AVAILABLE AT /USE LOWER CASE LETTERS/:

     HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP/GMOS/GMOSHEADERS.PDF

A WEB PAGE OUTLINING THE GRIDDED MOS GUIDANCE AND THE FTP SERVER 
STRUCTURE CAN BE FOUND AT /USE LOWER CASE LETTERS/:

     HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP/GMOS.HTML

FOR QUESTIONS ABOUT THESE PRODUCTS OR THE MOS GUIDANCE PLEASE 
CONTACT:

     KATHRYN GILBERT
     MDL/SILVER SPRING MARYLAND
     PHONE:  301-713-0023 EXT. 130
     E-MAIL: KATHRYN.GILBERT@NOAA.GOV

LINKS TO THE MOS PRODUCTS...ALONG WITH DESCRIPTIONS...CAN BE 
FOUND AT /USE LOWER CASE LETTERS/:
  
     HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP

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

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

$$
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