Posted: Fri, Jun 4, 1993 2:00 PM EDT Msg: HGJD-5736-4418
g.carter(rec),
e.young.nws(rec), l.miller.ucar(rec), t.whittaker(rec)
CC: j.stackpole(rec), d.haldeman(rec), r.petersen.nmc(rec)
Subj: Two Natl Tech Info Msgs
FYI, the following messages were transmitted on AFOS on Thursday
afternoon.
-----------------------------------------------------------------
ZCZC WSHPNSNMC
TTAA00 KWSH DDHHMM
NATIONAL TECHNICAL INFORMATION MESSAGE 93-18
NATIONAL WEATHER SERVICE HEADQUARTERS
200 PM EDT JUN 03 1993
TO: ALL NWS OFFICES
DOMESTIC DATA SERVICE USERS
FROM: MARY M. GLACKIN
CHIEF, SERVICES DEVELOPMENT BRANCH
SUBJECT: REMOVAL OF GFUS20-55 BULLETINS
(INFORMATION FOR THIS ANNOUNCEMENT HAS BEEN PROVIDED BY MARY
NEWTON OF THE OFFICE OF METEOROLOGY)
ON TUESDAY, JUNE 08, 1993, AT 1200 UTC, THE NATIONAL WEATHER
SERVICE WILL CEASE GENERATION OF THE GFUS20-55 BULLETINS. THE
GFUS BULLETINS ARE ASCII CODED FORECAST OF WIND SPEED AND
DIRECTION AND TEMPERATURE FOR THE LIMITED-AREA FINE-MESH MODEL
(LFM) GRID POINTS ON THE MARSDEN SQUARE GRID. THESE PRODUCTS ARE
NO LONGER REQUIRED BY THE FEDERAL AVIATION ADMINISTRATION (FAA),
THE INTENDED USERS OF THE BULLETINS.
THIS CHANGE IS BEING MADE AS PART OF THE PHASEOUT OF THE LFM
MODEL AND THE IMPLEMENTATION OF THE ETA MODEL ALSO SET FOR
1200 UTC, JUNE 08, 1993.
QUESTIONS REGARDING THIS CHANGE OR QUESTIONS ABOUT THE PHASE-OUT
OF THE LFM MAY BE DIRECTED TO MARY NEWTON OR CHRIS ALEX AT
(301-713-0462).
END
SENT - W/OM23
NNNN
---------------------------------------------------------------------
ZCZC WSHPNSNMC
TTAA00 KWSH DDHHMM
NATIONAL TECHNICAL INFORMATION MESSAGE 93-19
NATIONAL WEATHER SERVICE HEADQUARTERS
200 PM EDT JUN 03 1993
TO: ALL NWS OFFICES
DOMESTIC DATA SERVICE USERS
FROM: MARY M. GLACKIN
CHIEF, SERVICES DEVELOPMENT BRANCH
SUBJECT: ETA MODEL IMPLEMENTATION/PHASE-OUT OF THE
LIMITED-AREA FINE MESH (LFM)
REFERENCE: W/OM23:MCR LETTER DATED MAY 11, 1993
EFFECTIVE 1200 UTC, ON JUNE 8, 1993, AS PREVIOUSLY ADVERTISED, THE
NWS WILL REPLACE THE LIMITED-AREA FINE MESH (LFM) MODEL WITH A NEW
WEATHER PREDICTION MODEL CALLED THE EARLY ETA MODEL. THIS VERSION
OF THE ETA MODEL, WHICH CONSISTS OF 38 LAYERS IN THE VERTICAL AND
AN 80-KM HORIZONTAL GRID, WILL PROVIDE AN IMPROVED EARLY LOOK AT
THE SYNOPTIC SCALE FORECAST COMPARED TO THE LFM.
WITH THE IMPLEMENTATION OF THE ETA MODEL, MOST PRODUCTS THAT ARE
CURRENTLY GENERATED FROM THE LFM WILL BE DERIVED FROM EITHER THE
ETA MODEL OR THE NESTED GRID MODEL (NGM). A TECHNICAL PACKAGE
IDENTIFYING EVERY LFM-BASED PRODUCT, AND ITS DISPOSITION WITH THE
ETA IMPLEMENTATION, WAS MAILED TO NWS EMPLOYEES AND NUMEROUS
EXTERNAL USERS. PLEASE REFER TO THIS PACKAGE (SEE REFERENCE) FOR
DETAILS ON AFFECTED LFM-BASED PRODUCTS.
IF YOU NEED INFORMATION ON THE ETA MODEL, CONTACT GEOFF DIMEGO AT
NMC AT 301-763-8056, OR WRITE TO HIM AT:
NATIONAL METEOROLOGICAL CENTER
5200 AUTH ROAD
CAMP SPRINGS, MD 20746
IF YOU NEED INFORMATION ON THE ETA MODEL IMPLEMENTATION OR THE
REFERENCE, PLEASE CALL MARY NEWTON OR CHRIS ALEX ON MY STAFF IN THE
OFFICE OF METEOROLOGY AT 301-713-0462. WRITTEN INQUIRIES MAY BE
MAILED TO THE FOLLOWING ADDRESS:
NOAA/NATIONAL WEATHER SERVICE
OFFICE OF METEOROLOGY, W/OM23
1325 EAST WEST HIGHWAY
SSMC2, RM 13442
SILVER SPRING, MD 20910
END
SENT - W/OM23