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NOUS41 KWBC 021919 AAA
PNSWSH
TECHNICAL IMPLEMENTATION NOTICE 03-48...AMENDED
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
225 PM EST MON FEB 1 2004
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: PAUL HIRSCHBERG
CHIEF...SCIENCE PLANS BRANCH
OFFICE OF SCIENCE AND TECHNOLOGY /OST/
SUBJECT: AMENDED...CHANGE TO ISSUANCE TIME OF ETA MOS
GUIDANCE...EFFECTIVE FEBRUARY 17 2004 AT 1200 UTC
REFER TO: TECHNICAL IMPLEMENTATION NOTICE /TIN/ 03-49 /AMENDED/
FOR ADDITIONAL ETA MOS CHANGES TO BE IMPLEMENTED
FEBRUARY 24 2004
AMENDED TO CHANGE SUBJECT LINE?EFFECTIVE DATE?AND FIRST PARAGRAPH
TO EMPHASIZE DELAY IN MESSAGE TRANSMISSION TIME.
NOTE...THE FOLLOWING CHANGES HAVE NO IMPACT ON NOAA WEATHER
WIRE SUBSCRIBERS
ATTENTION USERS OF THE MODEL OUTPUT STATISTICS /MOS/ GUIDANCE:
ON TUESDAY...FEBRUARY 17 2004 AT 1200 COORDINATED UNIVERSAL TIME
/UTC/...THE NWS WILL IMPLEMENT NEW EQUATIONS USED TO PRODUCE THE
ETA MOS GUIDANCE. THESE EQUATIONS WERE DEVELOPED FROM A HIGH-
RESOLUTION ARCHIVE...IN TIME AND IN SPACE...OF THE ETA MODEL.
DUE TO THIS CHANGE...ETA MOS GUIDANCE WILL BE DISSEMINATED
APPROXIMATELY 30 MINUTES LATER THAN CURRENTLY TRANSMITTED. THIS
MODIFICATION IS NECESSARY TO IMPROVE THE ACCURACY OF THE GUIDANCE
FOR FORECAST PROJECTIONS GREATER THAN 48 HOURS. SAMPLE
VERIFICATIONS CAN BE FOUND ONLINE AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP/TIN/ETA32VERIF.HTM
PLEASE NOTE THAT THE IMPLEMENTATION OF THIS CHANGE HAS BEEN
DELAYED TWO WEEKS TO ENSURE THAT ALL USERS OF THE MOS PRODUCTS
HAVE BEEN ADEQUATELY NOTIFIED.
THE CONTENT OF THE ETA MOS GUIDANCE WILL NOT CHANGE ON THIS
DATE?HOWEVER?USERS SHOULD REFER TO TIN 03-49 /AMENDED/ FOR
ADDITIONAL CHANGES TO BE IMPLEMENTED FEBRUARY 24 2004
EFFECTIVE FEBRUARY 17TH...CHANGES WILL ALSO BE MADE TO THE STATIONS
FOR WHICH GUIDANCE IS AVAILABLE. FOUR STATIONS WILL BE REMOVED
FROM THE CURRENT TEXT PRODUCTS...AND THE CALL LETTERS OF 3 SITES
WILL BE UPDATED IN THE TEXT PRODUCTS. LISTS OF ALL STATIONS IN
THIS CHANGE ARE PROVIDED BELOW.
TABLE 1. COMMUNICATION IDENTIFIERS FOR THE CURRENT ETA-BASED MOS
TEXT PRODUCTS. THE AWIPS IDS ARE METXXX...WHERE THE FINAL XXX
DENOTES THE GEOGRAPHIC REGION FOR WHICH THE GUIDANCE IS VALID.
WMO HEADING AWIPS ID GEOGRAPHIC REGION
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
THE STATIONS BEING REMOVED FROM THE TEXT PRODUCTS ARE:
KNZJ EL TORO...CALIFORNIA
KP07 SANDERSON...TEXAS
KRRF PORT RICHEY...FLORIDA
KY22 LEMMON...SOUTH DAKOTA
THE FOLLOWING CALL LETTER IDENTIFIERS WILL BE UPDATED IN THE TEXT
PRODUCTS:
SITE FROM TO
CECIL FIELD...FLORIDA KNZC KVQQ
CUSTER...SOUTH DAKOTA K0V1 KCUT
DENNISON...TEXAS KF39 KGYI
LINKS TO THESE PRODUCTS...ALONG WITH DESCRIPTIONS...CAN BE FOUND
AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/MDL/SYNOP/PRODUCTS.SHTML
IF YOU HAVE ANY QUESTIONS OR CONCERNS 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@xxxxxxxx
THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE
ON THE INTERNET AT /USE LOWER CASE LETTERS/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$
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