METEOROLOGICAL DEVELOPMENT LABORATORY /MDL/
OFFICE OF SCIENCE AND TECHNOLOGY /OST/
SUBJECT CHANGES TO ETA MOS GUIDANCE EQUATIONS...EFFECTIVE
FEBRUARY 3 2004
REFER TO TECHNICAL IMPLEMENTATION NOTICE 03-49 FOR ADDITIONAL
ETA MOS CHANGES TO BE IMPLEMENTED FEBRUARY 17 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 3 2004... WITH THE 1200 COORDINATED
UNIVERSAL TIME /UTC/ MODEL CYCLE... THE NWS WILL MAKE CHANGES TO
THE EQUATIONS USED TO PRODUCE THE ETA MOS GUIDANCE. NEW
EQUATIONS DEVELOPED FROM A HIGH-RESOLUTION ARCHIVE...IN TIME AND
IN SPACE...OF THE ETA MODEL OUTPUT WILL NOW BE USED TO GENERATE
THE MOS GUIDANCE. THE CONTENT OF THE ETA MOS GUIDANCE MESSAGE
WILL NOT CHANGE ON THIS DATE...HOWEVER...THE NEW EQUATIONS WILL
GENERATE GUIDANCE FOR SELECT ELEMENTS OUT TO 72-HRS IN ADVANCE...
IN PREPARATION FOR ADDITIONAL MODIFICATIONS TO THE ETA MOS ON
FEBRUARY 17 2004. DUE TO THIS EQUATION CHANGE...THE GUIDANCE
WILL BE DISSEMINATED APPROXIMATELY 30 MINUTES LATER THAN IT
CURRENTLY IS. 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
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.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@xxxxxxxx
THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE
ONLINE AT /USE LOWER CASE LETTERS/
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
$$
---------- End Forwarded Message ----------