20010129: Eta model changes-ADMIN NOTICE NOUS42 KWNO (fwd)

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805
NOUS42 KWNO 291843
ADMNFD

SPECIAL NCEP DISCUSSION
CENTRAL OPERATIONS/NCEP/NWS/WASHINGTON DC
1842Z UTC MONDAY JAN 29 2001

291842Z...ATTN ETA MODEL USERS...

A CHANGE TO THE SST ANALYSIS FOR THE ETA MODEL WILL BE PUT
INTO OPERATION STARTING WITH THE 12Z 01/30/2001 MODEL RUN...
THIS CHANGE IS TO CORRECT PROBLEMS THAT WERE NOTED DURING THE
DEC 29 2000 EAST COAST SNOW STORM...DETAILS OF THE PROPOSED
CHANGE CAN BE FOUND AT:

http://www.ncep.noaa.gov/cgi-bin/lwgate-public/lwgate/JIFMEMO/
archives/jifmemo.0101/date/article-9.html


THE 12Z NCEP MODELS ARE ON TIME WITH GOOD US CAN UPPER AIR DATA
COVERAGE...RAOB RECAP..PASY GSO ILN ALY ABR TFX CHH EQUIP
PROBLEMS...YXY DEL HTS/TEMPS 850MB UPHIGH/WARM..YZV DEL WNDS
650 TO 450MB STRONG...FWD DEL WNDS 700 TO 690MB STRONG..LZK DEL
WNDS 310MB UP WEAK..YVP DEL ALLMAN WNDS DIR/WEAK...MHX DEL WNDS
70MB UP ERRATIC..YYQ DEL WNDS 120 TO 112MB WEAK...

SHRUELL/SDM/NCO/NCEP
NNNN












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