NOUS41 KWBC 011746 PNSWSH TECHNICAL IMPLEMENTATION NOTICE 07-31 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 145 PM EDT TUES MAY 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...AND NWS EMPLOYEES FROM: GLENN AUSTIN DIGITAL SERVICES TRANSITION MANAGER OFFICE OF CLIMATE...WATER...AND WEATHER SERVICES SUBJECT: PROBABILISTIC TROPICAL CYCLONE SURFACE WIND SPEED ELEMENTS TO BECOME OPERATIONAL IN THE NATIONAL DIGITAL FORECAST DATABASE ON MAY 31 2007 WITH THE 1200 UTC ISSUANCE REFER TO: TIN 07-32 ANNOUNCING SIGNIFICANT WAVE HEIGHT ELEMENT BECOMING OPERATIONAL IN NDFD ON THE SAME DATE EFFECTIVE MAY 31 2007 WITH THE 1200 COORDINATED UNIVERSAL TIME /UTC/ FORECASTS...THE PROBABILISTIC TROPICAL CYCLONE SURFACE WIND SPEED ELEMENTS IN THE NATIONAL DIGITAL FORECAST DATABASE /NDFD/ WILL BE UPGRADED FROM EXPERIMENTAL TO OPERATIONAL STATUS. THESE ELEMENTS HAVE BEEN EXPERIMENTAL IN NDFD SINCE SEPTEMBER 2004. THE PROBABILISTIC TROPICAL CYCLONE SURFACE WIND SPEED ELEMENTS ARE AVAILABLE THROUGH 120 HOURS AT 6 HOURLY INTERVALS AT 5 KILOMETER SPATIAL RESOLUTION...FOR THE COTERMINOUS UNITED STATES /CONUS/ AND THE ADJACENT COASTAL WATERS...AND FOR THE 16 PRE-DEFINED NDFD CONUS SUBSECTORS AND THE ADJACENT COASTAL WATERS. THESE FORECASTS ARE PROVIDED FOR THREE WIND SPEED THRESHOLDS: 34...50...AND 64 KNOTS. TWO TYPES OF WIND SPEED PROBABILITIES...CUMULATIVE AND INCREMENTAL...ARE PROVIDED. DEFINITIONS OF THESE PROBABILITIES ARE AVAILABLE ON THE NATIONAL HURRICANE CENTER WEB PAGE AT /USE LOWER CASE LETTERS/: HTTP://WWW.NHC.NOAA.GOV/ABOUTNHCPROBS.SHTML AND IN THE LIST OF NDFD ELEMENT DEFINITIONS AT /USE LOWER CASE LETTERS/: HTTP://WWW.NWS.NOAA.GOV/NDFD/DEFINITIONS.HTM USERS OF NDFD GRAPHICS...NDFD IN EXTENSIBLE MARKUP LANGUAGE /XML/ VIA WEB SERVICE...OR THE NEW EXPERIMENTAL NDFD WEB FEATURE SERVICE BEING IMPLEMENTED TODAY /MAY 1 2007/ ARE NOT AFFECTED BY THIS CHANGE IN STATUS FROM EXPERIMENTAL TO OPERATIONAL. THIS CHANGE PRIMARILY AFFECTS USERS WHO PULL THESE ELEMENTS IN GRIDDED BINARY /GRIB2/ FORMAT FROM THE NWS FILE TRANSFER PROTOCOL /FTP/ SERVER...EITHER VIA THE INTERNET OR VIA THE FAMILY OF SERVICES SERVER ACCESS SERVICE. THOSE USERS WILL NEED TO PULL THESE ELEMENTS FROM A DIFFERENT URL/S/ TO CONTINUE TO RECEIVE THE SIX PROBABILISTIC TROPICAL CYCLONE SURFACE WIND SPEED ELEMENTS AND MAY NEED TO UPDATE PROCEDURES AND/OR SCRIPTS TO ENSURE CONTINUED ACCESS TO THESE ELEMENTS. ADDITIONAL DETAILS ABOUT THIS IMPLEMENTATION...INCLUDING SPECIFIC INFORMATION FOR FTP USERS...ARE AVAILABLE AT /USE LOWER CASE LETTERS/: HTTP://WWW.WEATHER.GOV/NDFD/WAVEH_6TPC_OPER_IMPLEM.HTM IF MAY 31 2007 IS A CRITICAL WEATHER DAY...THIS IMPLEMENTATION MAY BE POSTPONED. IN THAT CASE USERS WILL BE NOTIFIED OF THAT DECISION VIA A TECHNICAL IMPLEMENTATION NOTICE AS FAR IN ADVANCE AS POSSIBLE. DETAILED INFORMATION ON OPTIONS FOR ACCESSING AND USING THE NDFD IS AVAILABLE AT /USER LOWER CASE LETTERS/: HTTP://NDFD.WEATHER.GOV/TECHNICAL.HTM A PRODUCT DESCRIPTION DOCUMENT /PDD/ FOR THE OPERATIONAL PROBABILISTIC TROPICAL CYCLONE SURFACE WIND SPEED ELEMENTS IN NDFD IS AVAILABLE AT /USE LOWER CASE LETTERS:/ HTTP://PRODUCTS.WEATHER.GOV/VIEWLIST.PHP GO TO PAGE 10 FOR THE PDD DESCRIBING THE TROPICAL CYCLONE PROBABILISTIC SURFACE WIND SPEED GRIDDED DATA. 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 E-MAIL: DAVID.RUTH@NOAA.GOV TECHNICAL IMPLEMENTATION NOTICES SPECIFICALLY RELATED TO THE NDFD ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/: HTTP://WWW.WEATHER.GOV/NDFD/TINS.HTM ALL NWS TECHNICAL IMPLEMENTATION NOTICES ARE POSTED AT /USE LOWER CASE LETTERS/: HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM $$ NNNN
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Page last modified: Friday, 18-Mar-2016 19:49:26 UTC