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027
NOUS41 KWBC 192029
PNSWSH
PUBLIC INFORMATION STATEMENT...SERVICE CHANGE NOTICE 01-53
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
430 PM EDT TUE SEP 19 2001
TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS
WEATHER INFORMATION NETWORK /EMWIN/ SUBSCRIBERS...
OTHER NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS AND
PARTNERS...NWS EMPLOYEES
FROM: JAMES E. LEE
CHIEF...FIRE AND PUBLIC WEATHER SERVICES BRANCH
SUBJECT: PROPOSED CHANGES TO THE HYDROMETEOROLOGICAL PREDICTION
CENTER'S ANALYSIS AND GUIDANCE PRODUCTS...COMMENTS
ACCEPTED VIA HPC WEB SITE THROUGH DECEMBER 12 2001
THE NATIONAL WEATHER SERVICE /NWS/ IS PROPOSING MODIFICATIONS TO
SELECTED HYDROMETEOROLOGICAL PREDICTION CENTER /HPC/ ANALYSIS AND
GUIDANCE PRODUCTS. THE IMPLEMENTATION OF THESE CHANGES WILL
RESULT IN A MORE CONSISTENT SET OF GRAPHICAL PRODUCTS FROM DAY 1
THROUGH DAY 7.
FIRST...TWO ADDITIONAL NORTH AMERICAN SURFACE ANALYSIS
CHARTS...AWIPS ID: RBG90F...WMO HEADER: PYAA98 KWNO...WILL BE
ADDED AT 0300 AND 2100 UTC. THIS WILL RESULT IN A COMPLETE SUITE
OF SURFACE ANALYSIS CHARTS AT THREE-HOUR INTERVALS.
THE 12- THROUGH 48-HOUR SHORT RANGE SURFACE PROGNOSTIC
CHARTS...NOW AVAILABLE...WILL BE MODIFIED AND EXTENDED INTO
DAY 3. THESE NEW CHARTS WILL DEPICT THE FORECAST POSITIONS OF
FRONTS...ISOBARS...AND PRESSURE CENTERS...BUT WILL NO LONGER SHOW
PRECIPITATION. NOTE: THE WEB-BASED CHARTS ARE CURRENTLY COMPOSED
OF TWO OPERATIONAL PRODUCTS...A PRESSURE/FRONTS CHART AND A
SENSIBLE WEATHER CHART. AWIPS IDENTIFIERS AND WMO HEADERS FOR
THE AFFECTED CHARTS ARE:
CHART/STATUS AWIPS ID WMO HEADER
12-HR PRES/FRNTS/CURRENT RBG92F PPIC01 KWBC
24-HR PRES/FRNTS/CURRENT RBG94F PPIE01 KWBC
36-HR PRES/FRNTS/CURRENT RBG96F PPIG01 KWBC
48-HR PRES/FRNTS/CURRENT RBG98F PPII01 KWBC
60-HR PRES/FRNTS/PROPOSED TBD TBD
72-HR PRES/FRNTS/PROPOSED TBD TBD
WE ARE PROPOSING THE FOLLOWING CHARTS...CURRENTLY BEING
PRODUCED...BE ELIMINATED:
CHART/CURRENT AWIPS ID WMO HEADER
12-HR SENSIBLE WX RBGL2P PEIC61 KWBC
24-HR SENSIBLE WX RBGL4P PEIE62 KWBC
36-HR SENSIBLE WX RBGL6P PEIG63 KWBC
48-HR SENSIBLE WX RBGL8P PEII64 KWBC
A SEPARATE PROPOSED CHART...CALLED THE SIGNIFICANT WEATHER CHART
/AWIPS ID AND WMO HEADER TBD/...ISSUED FOR DAYS 1...2...AND
3...WILL PROVIDE AN OVERVIEW OF THE DAY'S WEATHER...INCLUDING
PRECIPITATION AND OTHER WEATHER HAZARDS.
THE DAY 3 MEDIUM RANGE NORTH AMERICAN FORECAST CHART... VALID AT
72 HOURS...AWIPS ID: RBG9JH...WMO HEADER: PPHK01 KWBC... WILL BE
REPLACED BY TWO CHARTS DEPICTING THE FORECAST POSITIONS OF
FRONTS...ISOBARS...AND PRESSURE CENTERS AT 60 AND 72 HOURS
/PREVIOUSLY MENTIONED/. THE DOMAIN OF THESE DAY 3 CHARTS WILL
NOW BE LIMITED TO THE CONTINENTAL UNITED STATES /CONUS/.
WE ARE PROPOSING THE CONUS DAY 3 MAXIMUM AND MINIMUM TEMPERATURE
AND PROBABILITY OF PRECIPITATION CHARTS BE ELIMINATED. NOTE: A
WEB-BASED CHART IS GENERATED FOR EACH ELEMENT...THE OPERATIONAL
PRODUCT...AWIPS ID: RBG93P...WMO HEADER: PYWK43 KWBC...CONTAINS
ALL THREE ELEMENTS IN ONE CHART. THESE ELEMENTS ARE NOW COVERED
IN EXPANDED DETAIL IN THE ZONE FORECAST PRODUCT /ZFP/ PROVIDED BY
NWS FORECAST OFFICES.
TO FREE UP TIME TO HELP PREPARE THE ADDITIONAL PRODUCTS...WE
PROPOSE TO DELETE THE SHORT RANGE PROGNOSTIC DISCUSSION...AWIPS
ID: PMDSPD...WMO HEADER: FXUS01 KWBC...THAT ACCOMPANIES THE 12-
THROUGH 48-HOUR CHARTS. SIMILAR INFORMATION WILL BE AVAILABLE IN
OTHER HPC DISCUSSIONS.
TO SEE EXAMPLES OF THE CURRENT PRODUCTS AS WELL AS PROPOSED
REPLACEMENTS...SEE THE HPC WEB SITE AT:
HTTP://WWW.HPC.NCEP.NOAA.GOV/
WE ARE SOLICITING COMMENTS ON THIS PROPOSED MODIFIED SUITE OF
PRODUCTS THROUGH DECEMBER 12 2001. THE HPC WEB SITE SHOWN ABOVE
CONTAINS A LINK TO PROVIDE COMMENTS. IF THE RESULTS ARE
POSITIVE...THE CHANGES WILL BE IMPLEMENTED IN THE SPRING OF 2002.
AWIPS IDENTIFIERS AND WMO HEADERS FOR NEW PRODUCTS WILL BE
RELEASED AT LEAST 60 DAYS PRIOR TO OPERATIONAL IMPLEMENTATION...
IN A SERVICE CHANGE NOTICE.
IF YOU HAVE ANY QUESTIONS...YOU CAN CONTACT:
KEVIN MCCARTHY...DEPUTY DIRECTOR
NCEP HYDROMETEOROLOGICAL PREDICTION CENTER
PHONE: 301-763-8000 X 7304
EMAIL: KEVIN.MCCARTHY@xxxxxxxx
OR
DAVID REYNOLDS...CHIEF
NCEP/HPC FORECAST OPERATIONS BRANCH
PHONE: 301-763-8000 X 7317
EMAIL: DAVID.REYNOLDS@xxxxxxxx
THIS AND ALL NWS SERVICE CHANGE NOTIFICATIONS ARE AVAILABLE AT
THE FOLLOWING URL ADDRESS /USE LOWER CASE/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
END
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