> 886
> NOUS41 KWBC 271615
> PNSWSH
>
> PUBLIC INFO. STATEMENT...TECHNICAL INFORMATION NOTICE 00-04
> NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
> 1115 AM EST THU JAN 27 2000
>
> TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
> WIRE SERVICE /NWWS/ SUBSCRIBERS...OTHER NATIONAL
> WEATHER SERVICE /NWS/ CUSTOMERS...NWS EMPLOYEES
>
> FROM: LEROY SPAYD...CHIEF...SCIENCE AND TRAINING CORE
>
> SUBJECT: CHANGES TO THE NCEP GLOBAL ANALYSIS/FORECAST
> SYSTEM...EFFECTIVE JAN 24 2000
>
> BEGINNING WITH THE 12Z GLOBAL MODEL RUN ON JAN 24 2000...THE
> HORIZONTAL AND VERTICAL RESOLUTIONS OF THE AVN AND MRF MODELS
> HAVE INCREASED...THE T170 AND 42 LAYER RESOLUTIONS REPLACE T126
> AND 28 LAYERS /USED SINCE OCTOBER 1998/...THIS REPRESENTS AN
> APPROXIMATE INCREASE IN HORIZONTAL RESOLUTION FROM 105 KM TO 75
> KM...THE MRF FORECAST SYSTEM CONSISTS OF A T170L42 FORECAST TO
> 168 HOURS...AND T62L28 THEREAFTER...TESTING SHOWS POSITIVE IMPACT
> ON JET STREAM WINDS AND ON STRUCTURE AND SPEED OF STORMS IN THE
> WINTER HEMISPHERE...DETAILS ARE FOUND IN TECHNICAL PROCEDURES
> BULLETIN 452 TO BE FOUND AT (LOWERCASE)
> HTTP://WWW.NWS.NOAA.GOV/OM/TPBPR.HTM
>
>
> IF YOU HAVE ANY QUESTIONS...PLEASE CONTACT:
>
> KEN CAMPANA
> ENVIRNMENTAL MODELLING CENTER
> GLOBAL MODELLING BRANCH W/NP23
> NATIONAL CENTER FOR ENVIRNMENTAL PREDICTION
> 5200 AUTH RD.
> CAMP SPRINGS MD 20746-4304
> WEB PAGE HTTP://WWW.EMC.NCEP.NOAA.GOV/ /LOWER CASE/
>
> THIS AND OTHER CHANGE NOTICES ARE ON THE INTERNET AT
>
> WWW.NWS.NOAA.GOV/OM/NOTIF.HTM /LOWER CASE/
>
> END
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