Technical Implementation Notice

NOUS41 KWBC 051704
PNSWSH

TECHNICAL IMPLEMENTATION NOTICE 06-37
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
105 PM EDT MON JUN 5 2006

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:      THERESE Z. PIERCE
           CHIEF...MARINE AND COASTAL SERVICES BRANCH

SUBJECT:   NEW EXPERIMENTAL NATIONAL DIGITAL FORECAST DATABASE 
           TROPICAL CYCLONE SURFACE WIND SPEED PROBABILITY 
           ELEMENTS FOR THE CONTIGUOUS UNITED STATES 
           AND ADJACENT COASTAL AREAS: EFFECTIVE JULY 5 2006
 
EFFECTIVE JULY 5 2006 AT 1200 COORDINATED UNIVERSAL TIME 
/UTC/...THE NWS WILL BEGIN PROVIDING TROPICAL CYCLONE 
PROBABILISTIC WIND SPEED FORECAST ELEMENTS IN THE NATIONAL 
DIGITAL FORECAST DATABASE /NDFD/ ON AN EXPERIMENTAL BASIS. THE 
TEST WILL CONTINUE THROUGH NOVEMBER 30 2006.  

USERS WILL BE ABLE TO PULL THESE ELEMENTS IN GRIDDED 
BINARY /GRIB2/ FORMAT FROM THE NWS FILE TRANSFER PROTOCOL /FTP/ 
SERVER. GRIDDED FORECASTS FOR TROPICAL CYCLONE SURFACE WIND SPEED 
PROBABILITIES WILL BE AVAILABLE THROUGH 120 HOURS AT 6 HOURLY 
INTERVALS WITH A 5 KILOMETER SPATIAL RESOLUTION. THESE FORECASTS 
WILL BE PROVIDED FOR THREE WIND SPEED THRESHOLDS: 34...50...AND 
64 KNOTS.  TWO TYPES OF WIND SPEED PROBABILITIES ...CUMULATIVE 
AND INCREMENTAL...WILL BE PROVIDED. DEFINITIONS OF THESE 
PROBABILITIES WILL BE AVAILABLE ON THE NATIONAL HURRICANE CENTER 
WEBSITE BY JULY 5 AT /USE LOWER CASE LETTERS/:

        HTTP://WWW.NHC.NOAA.GOV/ABOUTNHCPROBS.SHTML

DETAILED INFORMATION ON OPTIONS FOR ACCESSING AND USING THE NDFD 
IS AVAILABLE ONLINE AT /USER LOWER CASE LETTERS/:

        HTTP://NDFD.WEATHER.GOV/TECHNICAL.HTM

A PRODUCT DESCRIPTION DOCUMENT /PDD/ FOR THE EXPERIMENTAL NDFD 
TROPICAL CYCLONE GRIDDED WIND SPEED PROBABILITIES IS AVAILABLE 
ONLINE AT /USE LOWER CASE LETTERS:/

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

GO TO PAGE 3 FOR THE UMBRELLA PDD DESCRIBING NDFD GRIDDED DATA. 
GO TO PAGE 4 FOR THE PDD DESCRIBING THE EXPERIMENTAL TROPICAL 
CYCLONE PROBABILISTIC SURFACE WIND SPEED GRIDDED DATA.

A DETAILED LISTING OF TROPICAL PREDICTION CENTER /TPC/ WMO 
PRODUCT HEADINGS INCLUDING THE TPC AREA DESIGNATOR AND REFERENCE 
TIME DESIGNATORS IS LOCATED AT /USE LOWER CASE LETTERS/:

        HTTP://WWW.WEATHER.GOV/DATAMGMT/DOC/TPC.HTML

NEW NDFD GRAPHICS FOR THESE EXPERIMENTAL ELEMENTS WILL BE 
AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:

        HTTP://WWW.WEATHER.GOV/FORECASTS/GRAPHICAL/SECTORS/

USERS ARE ENCOURAGED TO PROVIDE FEEDBACK ON THE EXPERIMENTAL 
PROBABILISTIC WIND SPEED PRODUCTS BY USING THE BRIEF SURVEY AND 
COMMENT FORM AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:

        HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=TCSWP

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

     TIMOTHY SCHOTT
     NATIONAL WEATHER SERVICE
     MARINE AND COASTAL SERVICES BRANCH
     1325 EAST WEST HIGHWAY
     SILVER SPRING MARYLAND 20910
     EMAIL:  TIMOTHY.SCHOTT@NOAA.GOV

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@NOAA.GOV

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

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

$$
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