NOUS41 KWBC 051514 AAA PNSWSH TECHNICAL IMPLEMENTATION NOTICE 09-39...AMENDED NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 1015 AM EST FRI FEB 5 2010 TO: SUBSCRIBERS: -FAMILY OF SERVICES -NOAA WEATHER WIRE SERVICE -EMERGENCY MANAGERS WEATHER INFORMATION NETWORK -NOAAPORT OTHER NWS PARTNERS...USERS AND EMPLOYEES FROM: TIM MCCLUNG SCIENCE PLANS BRANCH CHIEF OFFICE OF SCIENCE AND TECHNOLOGY SUBJECT: AMENDED: CHANGES TO GFS MOS GUIDANCE EQUATIONS: POSTPONED TO MARCH 3 2010 AMENDED TO POSTPONE EFFECTIVE DATE FOR UPDATING GFS MOS EQUATIONS FROM FEBRUARY 9 2010 TO MARCH 3 2010 ON WEDNESDAY MARCH 3 2010...BEGINNING WITH THE 1200 COORDINATED UNIVERSAL TIME /UTC/ RUN...THE NWS METEOROLOGICAL DEVELOPMENT LABORATORY /MDL/ WILL UPDATE THE GLOBAL FORECAST SYSTEM /GFS/ -BASED MODEL OUTPUT STATISTICS /MOS/ SYSTEM. THESE CHANGES WILL ALSO IMPACT THE GFS-BASED LOCALIZED AVIATION MOS PROGRAM /LAMP/ PRODUCTS BEGINNING WITH THE 1600 UTC RUN. THE GFS MOS CHANGES INCLUDE: 1. UPDATED EQUATIONS TO PRODUCE IMPROVED FORECAST GUIDANCE AT PROJECTIONS OF 1 TO 4 DAYS IN ADVANCE IN THE SHORT-RANGE PRODUCTS FROM THE 0000...0600...1200...AND 1800 UTC MODEL RUNS. THE CHANGES ARE FOR THE FOLLOWING ELEMENTS: DAYTIME MAXIMUM AND NIGHTTIME MINIMUM TEMPERATURE 2-METER TEMPERATURE 2-METER DEWPOINT TEMPERATURE WIND SPEED WIND DIRECTION PROBABILITY OF A THUNDERSTORM /6 AND 12 HOUR/ CONDITIONAL PROBABILITY OF A SEVERE THUNDERSTORM /6 AND 12 HOUR/ CEILING HEIGHT CATEGORIES CONDITIONAL PROBABILITY OF FREEZING PRECIPITATION CONDITIONAL PROBABILITY OF SNOW CONDITIONAL PRECIPITATION TYPE CATEGORIES CATEGORICAL SNOWFALL AMOUNT /24 HOUR/ 2. UPDATED EQUATIONS TO PRODUCE FORECAST GUIDANCE AT PROJECTIONS OF 1 TO 7 DAYS IN ADVANCE IN THE EXTENDED-RANGE PRODUCTS FROM THE 0000 AND 1200 UTC MODEL RUNS. THE CHANGES ARE FOR THE FOLLOWING ELEMENTS: DAYTIME MAXIMUM AND NIGHTTIME MINIMUM TEMPERATURE 2-METER TEMPERATURE 2-METER DEWPOINT TEMPERATURE WIND SPEED WIND DIRECTION PROBABILITY OF A THUNDERSTORM /12 AND 24 HOUR/ CONDITIONAL PROBABILITY OF FREEZING PRECIPITATION OCCURRING /12 HOUR/ CONDITIONAL PROBABILITY OF SNOW OCCURRING /12 HOUR/ CONDITIONAL PROBABILITY OF RAIN/SNOW MIX OCCURRING /12 HOUR/ CONDITIONAL PRECIPITATON TYPE CATEGORIES /12 HOUR/ CATEGORICAL SNOWFALL AMOUNT /24 HOUR/ 3. THE NWS WLL CHANGE THE IDENTIFIERS USED FOR THREE STATIONS IN THE GFS MOS AND LAMP PRODUCTS. BLAKELY GA WILL CHANGE FROM K11J TO KBIJ...WINNER WILEY FIELD SD WILL CHANGE FROM KSFD TO KICR...AND HUSLIA AK WILL CHANGE FROM PAHS TO PAHL. 4. NWS WILL REMOVE 19 STATIONS AND ADD 118 STATIONS TO THE SHORT- AND EXTENDED-RANGE STATION-BASED PUBLIC TEXT MESSAGES /KNOWN BY THEIR AWIPS IDS MAV AND MEX/ AND BUFR PRODUCTS. TEN MARINE STATIONS WILL BE REMOVED AND 171 MARINE STATIONS WILL BE ADDED TO THE GFS MOS MARINE TEXT PRODUCT /KNOWN BY THE AWIPS ID MMG/ AND BUFR PRODUCTS. THESE STATION CHANGES WILL BE REFLECTED IN THE UPDATED EQUATIONS AS WELL AS THE EQUATIONS WHICH WERE NOT UPDATED FOR THE ELEMENTS BELOW: -FORECASTS OF PROBABILITY OF PRECIPITATION -QUANTITATIVE PRECIPITATION FORECASTS -VISIBILITY -OBSTRUCTION TO VISION -OPAQUE SKY COVER. THE STATION REMOVALS WILL ALSO IMPACT THE RIVER FORECAST CENTER TEXT PRODUCT /KNOWN BY THE AWIPS ID FTP/. THESE CHANGES WILL SLIGHTLY ALTER THE FORMAT OF THE MAV... MEX... AND MMG TEXT PRODUCTS BECAUSE NEW LINES WILL BE ADDED TO THE EXISTING BULLETINS TO ACCOMMODATE THE NEW STATIONS. FOUR LINES WILL BE ADDED TO THE 1200 UTC MEX MESSAGE WITH THE COMPLETION OF THE PRECIPITATION TYPE ELEMENTS. THE COMMUNICATION IDENTIFIERS FOR THE TEXT AND BUFR PRODUCTS AFFECTED BY THIS CHANGE ARE SHOWN IN THE TABLES BELOW. A WEB PAGE OUTLINING THE STATION CHANGES AND MORE DETAILS ABOUT THE UPDATES TO THE EQUATIONS IS ONLINE AT /USE LOWERCASE/: WWW.NWS.NOAA.GOV/MDL/SYNOP/TIN/GFSMOS2009.PHP BEGINNING AT 1600 UTC GFS-LAMP WILL REMOVE 18 STATIONS FROM THE PUBLIC TEXT /KNOWN BY ITS AWIPS ID AS LAV/ AND BUFR MESSAGES FOR ALL CYCLES. A FULL DESCRIPTION OF THIS LAMP CHANGE IS AVAILABLE AT /USE LOWERCASE/: WWW.NWS.NOAA.GOV/MDL/GFSLAMP/DOCS/CHANGE_NOTICE_01222010.SHTML TABLE 1. COMMUNICATION IDENTIFIERS FOR THE GFS-BASED MOS PUBLIC WEATHER TEXT PRODUCTS. WMO HEADING AWIPS ID WMO HEADING AWIPS ID /SHORT RANGE/ /EXTENDED RANGE/ FOPA20 KWNO MAVPA0 FEPA20 KWNO MEXPA0 FOUS21 KWNO MAVNE1 FEUS21 KWNO MEXNE1 FOUS22 KWNO MAVSE1 FEUS22 KWNO MEXSE1 FOUS23 KWNO MAVNC1 FEUS23 KWNO MEXNC1 FOUS24 KWNO MAVSC1 FEUS24 KWNO MEXSC1 FOUS25 KWNO MAVRM1 FEUS25 KWNO MEXRM1 FOUS26 KWNO MAVWC0 FEUS26 KWNO MEXWC0 FOAK37 KWNO MAVAJK FEAK37 KWNO MEXAJK FOAK38 KWNO MAVAFC FEAK38 KWNO MEXAFC FOAK39 KWNO MAVAFG FEAK39 KWNO MEXAFG TABLE 2. COMMUNICATION IDENTIFIERS FOR THE GFS-BASED MOS MARINE TEXT PRODUCTS. WMO HEADING AWIPS ID FQPA20 KWNO MMGHI1 FQUS21 KWNO MMGNE1 FQUS22 KWNO MMGSE1 FQUS23 KWNO MMGGL1 FQUS24 KWNO MMGGF1 FQUS25 KWNO MMGNW1 FQUS26 KWNO MMGSW1 FQAK37 KWNO MMGAK1 TABLE 3. COMMUNICATION IDENTIFIERS FOR THE GFS-BASED MOS RIVER FORECAST CENTER TEXT PRODUCTS. WMO HEADING AWIPS ID FOUS12 KWNO FTPCIN FOUS12 KWNO FTPHFD FOUS12 KWNO FTPKRF FOUS12 KWNO FTPMSR FOUS12 KWNO FTPPTR FOUS12 KWNO FTPRHA FOUS12 KWNO FTPRSA FOUS12 KWNO FTPSLR FOUS12 KWNO FTPTUR FOAK12 KWNO FTPACR TABLE 4. COMMUNICATION IDENTIFIERS FOR THE GFS-BASED MOS BUFR PRODUCTS. WMO HEADING WMO HEADING REGION /SHORT RANGE/ /EXTENDED RANGE/ JSML30 KWNO JSMT30 KWNO PACIFIC REGION JSML31 KWNO JSMT31 KWNO NORTHEAST CONUS JSML32 KWNO JSMT32 KWNO SOUTHEAST CONUS JSML33 KWNO JSMT33 KWNO NORTH CENTRAL CONUS JSML34 KWNO JSMT34 KWNO SOUTH CENTRAL CONUS JSML35 KWNO JSMT35 KWNO ROCKY MOUNTAIN CONUS JSML36 KWNO JSMT36 KWNO WEST COAST CONUS JSML37 KWNO JSMT37 KWNO ALASKA TABLE 5. COMMUNICATION IDENTIFIERS FOR THE AFFECTED AIR FORCE MOS TEXT PRODUCTS. WMO HEADING AWIPS ID STATION REMOVED /SHORT RANGE/ FOUS30 KWNO MAVF02 KPLB FOUS30 KWNO MAVF14 KNQX FOUS30 KWNO MAVF25 KMCC /EXTENDED RANGE/ FEUS30 KWNO MEXF02 KPLB FEUS30 KWNO MEXF14 KNQX FEUS30 KWNO MEXF25 KMCC TABLE 6. COMMUNICATION IDENTIFIERS FOR THE GFS-LAMP TEXT PRODUCT AFFECTED BY THE REMOVAL OF STATIONS. WMO HEADING AWIPS ID FOUS11 KWNO LAVUSA TABLE 7. COMMUNICATION IDENTIFIERS FOR THE GFS-LAMP BUFR PRODUCTS AFFECTED BY THE REMOVAL OF STATIONS. WMO HEADING REGION JSMF10 KWNO PACIFIC REGION JSMF11 KWNO NORTHEAST CONUS JSMF12 KWNO SOUTHEAST CONUS JSMF13 KWNO NORTH CENTRAL CONUS JSMF14 KWNO SOUTH CENTRAL CONUS JSMF15 KWNO ROCKY MOUNTAIN CONUS JSMF16 KWNO WEST COAST CONUS JSMF17 KWNO ALASKA FOR QUESTIONS REGARDING GFS MOS GUIDANCE PRODUCTS... CONTACT: KATHRYN GILBERT MDL/SILVER SPRING MARYLAND 301-713-0023 EXT 130 KATHRYN.GILBERT@NOAA.GOV FOR QUESTIONS REGARDING GFS LAMP GUIDANCE PRODUCTS... CONTACT: JUDY GHIRARDELLI MDL/SILVER SPRING MARYLAND PHONE: 301-713-0056 EXT 194 JUDY.GHIRARDELLI@NOAA.GOV LINKS TO THE MOS PRODUCTS...ALONG WITH DESCRIPTIONS...CAN BE FOUND AT /USE LOWERCASE/: HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP NWS NATIONAL TECHNICAL IMPLEMENTATION NOTICES ARE ONLINE AT /USE LOWERCASE/: HTTP://WWW.WEATHER.GOV/OS/NOTIF.HTM $$ NNNN