20000127: NCEP Global Analysis/Fcst System-NTIM: 00-04 (fwd)

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 20000127: NCEP Global Analysis/Fcst System-NTIM: 00-04 (fwd)
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Thu, 27 Jan 2000 12:15:09 -0700

> 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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