960229: LFM adjustments-NOUS (fwd)

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 960229: LFM adjustments-NOUS (fwd)
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Thu, 29 Feb 1996 09:41:14 -0700 (MST)

 
302 
NOUS40 KWBC 281648
FOS NOTICE NO 848          02-28-96

TO          ALL USERS OF NWS PRODUCTS

FROM        JOSEPH R. BOCCHIERI
            CHIEF... SCIENCE AND TRAINING CORE

SUBJECT     ADJUSTMENTS TO LFM PRODUCTS TO BE TERMINATED

DUE TO NUMEROUS USER REQUESTS  MANY LFM-BASED PRODUCTS
SLATED FOR TERMINATION WILL INSTEAD BE REPLACED BY ETA-BASED
PRODUCTS.  SOME OF THE CHANGES WERE GIVEN IN THE UPDATE TO
MESSAGE 96-4 THAT WAS DISSEMINATED ON FEBRUARY 5... 1996. THIS
BULLETIN...ALONG WITH NTIM 96-7... IS TO PROVIDE THE FINAL LIST
OF CHARTS PLANNED FOR TERMINATION OR REPLACEMENT.

THE REPLACEMENT OF THE LIMITED-AREA FINE-MESH MODEL /LFM/ BY
THE ETA MODEL WAS INITIATED IN 1993.  THESE MODELS HAVE...
RESPECTIVELY... PROVIDED AN EARLY LOOK AT THE SYNOPTIC SCALE
FORECAST.  WITH THE IMPLEMENTATION OF THE ETA MODEL... MOST
PRODUCTS THAT WERE GENERATED FROM THE LFM WERE DERIVED FROM
EITHER THE ETA MODEL OR THE NESTED GRID MODEL /NGM/.  WHILE SOME
LFM FORECAST PRODUCTS WERE ELIMINATED... A FEW PRODUCTS REMAINED
LFM-BASED UNTIL THE CONVERSION WAS COMPLETED.  THAT CONVERSION IS
NOW COMPLETE.  THE LFM IS TO BE TERMINATED ON FEBRUARY 28... 1996
AT 1200 UTC.  AT THAT TIME... THE REMAINING LFM DATA AND PRODUCTS
WILL NO LONGER BE AVAILABLE.  A REVISED LIST OF THE AFFECTED
PRODUCTS IS GIVEN AT THE END OF THIS MESSAGE.

IF YOU HAVE ANY CONCERNS RELATED TO THE TERMINATION OF THE
LFM... PLEASE CONTACT BRENT BOWER OF THE OFFICE OF METEOROLOGY AT
301-713-1970.

AFOS
IDENTIFIER          DESCRIPTION              DISPOSITION
FOUS80 KWBC         LFM OUTPUT               TERMINATED

NMCGPH9AC           12 H SURFACE             TERMINATED
                    PRESSURE CHANGE

NMCGPH5AC           24 H 500 MB              TERMINATED
                    HEIGHT CHANGE

THE FOLLOWING LFM FACSIMILE PRODUCTS WILL BE REPLACED BY
EARLY ETA MODEL-BASED PRODUCTS OR TERMINATED AS SHOWN.

DIFAX CIRCUIT
D014   /TERMINATED/ 24 H 500 MB HT CHANGE /0000 UTC/
D158   /TERMINATED/ 24 H 500 MB HT CHANGE /1200 UTC/

D030   /REPLACED/   00 H 850 MB HT/TEMP ANALYSIS /0000 UTC/
D157   /REPLACED/   00 H 850 MB HT/TEMP ANALYSIS /1200 UTC/

D026   /REPLACED/   00 H 700 MB HT/TEMP ANALYSIS /0000 UTC/
D278   /REPLACED/   00 H 700 MB HT/TEMP ANALYSIS /1200 UTC/

D020   /REPLACED/   00 H 500 MB HT/TEMP ANALYSIS /0000 UTC/
D155   /REPLACED/   00 H 500 MB HT/TEMP ANALYSIS /1200 UTC/

D049   /REPLACED/   00 H 300 MB HT/ISOTACH ANALYSIS /0000 UTC/
D183   /REPLACED/   00 H 300 MB HT/ISOTACH ANALYSIS /1200 UTC/

D053   /REPLACED/   00 H 250 MB HT/ISOTACH ANALYSIS /0000 UTC/
D160   /REPLACED/   00 H 250 MB HT/ISOTACH ANALYSIS /1200 UTC/

D166   /REPLACED/   00 H 200 MB HT/ISOTACH ANALYSIS /0000 UTC/
D175   /REPLACED/   00 H 200 MB HT/ISOTACH ANALYSIS /1200 UTC/

D024   /REPLACED/ 00 H 500 MB HT/VORT /0000 UTC/
D154   /REPLACED/ 00 H 500 MB HT/VORT /1200 UTC/
END
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