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 $$ NNNN
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