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-------- Original Message --------709 NOUS41 KWBC 141245
PNSWSH TECHNICAL IMPLEMENTATION NOTICE 07-40 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 845 AM EDT THU JUN 14 2007TO: 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
CHIEF...SCIENCE PLANS BRANCH
OFFICE OF SCIENCE AND TECHNOLOGY /OST/
SUBJECT: NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION /NCEP/
TO IMPLEMENT HURRICANE WEATHER RESEARCH AND FORECAST
/HWRF/ MODEL: EFFECTIVE JUNE 19 2007
EFFECTIVE TUESDAY JUNE 19 2007...BEGINNING WITH THE 1200
COORDINATED UNIVERSAL TIME /UTC/ RUN...NCEP WILL BEGIN RUNNING A
NEW HURRICANE MODEL...THE HWRF SYSTEM...IN ADDITION TO THE
GEOPHYSICAL FLUID DYNAMICS LABORATORY /GFDL/ HURRICANE MODEL.
THE HWRF IS THE NOAA NEXT GENERATION OPERATIONAL HURRICANE FORECAST SYSTEM. IT HAS BEEN DEVELOPED TO PROVIDE ADVANCED HURRICANE GUIDANCE TO THE NATIONAL HURRICANE CENTER /NHC/ AT THE TROPICAL PREDICTION CENTER /TPC/. IT WILL PROVIDE FOR CONTINUED IMPROVEMENT OF TRACK FORECASTS AND IMPROVED FORECASTS OF INTENSITY AND STRUCTURE FORECASTS. THE CODING INFRASTRUCTURE OF THE HWRF FOLLOWS THE 2000 NWS STRATEGIC PLAN WHICH CALLED FOR THE USE OF A COMMUNITY MODEL - I.E. THE WEATHER RESEARCH AND FORECASTING /WRF/ MODELING INFRASTRUCTURE. THE HWRF SHARES THE SAME DYNAMIC CORE AS THE NCEP MIDLATITUDE MESOSCALE WRF BASED SYSTEM...THE NORTH AMERICAN MODEL /NAM/...BUT IS SPECIFICALLY DESIGNED FOR THE HURRICANE PROBLEM TO INCLUDE AN ADVANCED ANALYSES OF THE HURRICANE CORE CIRCULATION...A MOVABLE NESTED GRID CONFIGURATION SIMILAR TO THE GFDL MODEL AND COUPLING TO THE OCEAN. ON THE ABOVE IMPLEMENTATION DATE NCEP CENTRAL OPERATIONS WILL BEGIN TO PROVIDE OUTPUT FROM THE HWRF MODEL ON ITS FTP SERVER. USERS MAY ACCESS THESE DATA FROM THE LINK BELOW /USE LOWER CASE LETTERS/:
FTP://FTPPRD.NCEP.NOAA.GOV/PUB/DATA/COM/HUR/PROD/HWRF.YYYYMMDD IF YOU HAVE ANY QUESTIONS OR COMMENTS...PLEASE CONTACT:NAOMI SURGI NCEP...ENVIRONMENTAL MODELING CENTER CAMP SPRINGS MARYLAND PHONE: 301 763 8000 X7285 EMAIL: NAOMI.SURGI@xxxxxxxx
THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM.NOTIF.HTM
$$
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