NOUS41 KWBC 022209 PNSWSH PUBLIC INFO. STATEMENT...TECHNICAL IMPLEMENTATION NOTICE 03-49 NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC 445 PM EST TUE DEC 2 2003 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...NWS EMPLOYEES FROM J. PAUL DALLAVALLE CHIEF...STATISTICAL MODELING BRANCH METEOROLOGICAL DEVELOPMENT LABORATORY /MDL/ OFFICE OF SCIENCE AND TECHNOLOGY /OST/ SUBJECT CHANGES TO ETA MOS GUIDANCE CONTENT AND STATION LIST...EFFECTIVE FEBRUARY 17 2004 REFER TO TECHNICAL IMPLEMENTATION NOTICE 03-48 FOR ADDITIONAL ETA MOS CHANGES TO BE IMPLEMENTED FEBRUARY 3 2004 NOTE...THE FOLLOWING CHANGES HAVE NO DIRECT IMPACT ON NOAA WEATHER WIRE SUBSCRIBERS. ATTENTION USERS OF THE MODEL OUTPUT STATISTICS /MOS/ GUIDANCE... ON TUESDAY...FEBRUARY 17 2004... WITH THE 1200 COORDINATED UNIVERSAL TIME /UTC/ MODEL CYCLE...THE NWS WILL MAKE CHANGES TO THE CONTENT OF THE ETA MOS GUIDANCE. THE GUIDANCE FOR SELECTED WEATHER ELEMENTS WILL NOW BE AVAILABLE OUT TO 72-HRS IN ADVANCE IN THE MET TEXT PRODUCTS /SEE TABLE 1/. IN ADDITION... CEILING HEIGHT AND SNOWFALL GUIDANCE WILL BECOME AVAILABLE FOR THE FIRST TIME. THE DEFINITION OF CATEGORIES OF TOTAL SKY COVER AND CEILING HEIGHT WILL BE MODIFIED TO DISTINGUISH BETWEEN FEW AND SCATTERED CLOUDS AND BETWEEN CEILINGS OF 1000-1900 FT AND 2000-3000 FT. THE FORMAT OF THE MESSAGE WILL BE MODIFIED TO BE IDENTICAL TO THAT USED IN THE SHORT-RANGE GLOBAL FORECAST SYSTEM /GFS/-BASED MOS GUIDANCE. CHANGES WILL ALSO BE MADE TO THE STATIONS FOR WHICH GUIDANCE IS AVAILABLE. ETA MOS WILL NOW BE PRODUCED FOR STATIONS IN ALASKA...HAWAII...AND PUERTO RICO...AS WELL AS 142 NEW STATIONS IN THE CONTIGUOUS US. LISTS OF ALL STATIONS IN THIS CHANGE ARE PROVIDED BELOW. GUIDANCE FOR VISIBILITY AND OBSTRUCTION TO VISION WILL BECOME AVAILABLE LATER IN THE SPRING OF 2004...AS WILL GUIDANCE FOR THUNDERSTORMS BEYOND 60 HOURS. A FUTURE TECHNICAL IMPLEMENTATION NOTICE WILL BE SENT TO ANNOUNCE THES DETAILS AND IMPLEMENTATION DATE OF THOSE CHANGES. TABLE 1. COMMUNICATION IDENTIFIERS FOR THE ETA-BASED MOS TEXT PRODUCTS TO WHICH STATIONS WILL BE ADDED. THE AWIPS IDS ARE METXXX...WHERE THE FINAL XXX DENOTES THE GEOGRAPHIC REGION FOR WHICH THE GUIDANCE IS VALID. WMO HEADING AWIPS ID FOPA40 KWNO METPA1 PACIFIC ISLANDS FOUS44 KWNO METNE1 NORTHEAST CONUS FOUS45 KWNO METSE1 SOUTHEAST CONUS FOUS46 KWNO METNC1 NORTH CENTRAL CONUS FOUS47 KWNO METSC1 SOUTH CENTRAL CONUS FOUS48 KWNO METRM1 ROCKY MOUNTAIN CONUS FOUS49 KWNO METWC1 WEST COAST CONUS FOAK47 KWNO METAJK SOUTHEAST ALASKA /JUNEAU/ FOAK48 KWNO METAFC CENTRAL ALASKA /ANCHORAGE/ FOAK49 KWNO METAFG NORTHERN ALASKA /FAIRBANKS/ A LIST OF THE SITES BEING ADDED TO THE TEXT PRODUCTS CAN BE FOUND AT THE URL LISTED BELOW /USE LOWER CASE LETTERS/... http://www.nws.noaa.gov/mdl/synop/tin/newsites141.htm A TECHNICAL DESCRIPTION OF THE NEW BULLETIN FORMAT WILL BE POSTED ONLINE BY DRECEMBER 15 2003 AT THE URL LISTED BELOW /USE LOWER CASE LETTERS/... http://www.nws.noaa.gov/mdl/synop/tpb/etamsg2004.htm A SAMPLE OF THE MET TEXT BULLETIN EXTENDED TO 72 HOURS WILL BE AVAILABLE BY DECEMBER 15 2003 AT /USE LOWER CASE LETTERS/... http://www.nws.noaa.gov/mdl/synop/changes/eta32.htm LINKS TO THESE PRODUCTS...ALONG WITH DESCRIPTIONS...CAN BE FOUND AT /USE LOWER CASE LETTERS/... http://www.nws.noaa.gov/mdl/synop/products.htm IF YOU HAVE ANY QUESTIONS ABOUT THESE CHANGES TO THE MOS GUIDANCE SYSTEM...PLEASE CONTACT PAUL DALLAVALLE MDL/SILVER SPRING MARYLAND PHONE 301-713-0023 EXT. 135 E-MAIL PAUL.DALLAVALLE@NOAA.GOV THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE ONLINE AT /USE LOWER CASE LETTERS/... http://www.nws.noaa.gov/om/notif.htm $$ NNNN