SWOD48
SPC AC 250858
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0258 AM CST MON FEB 25 2008
VALID 281200Z - 041200Z
..DISCUSSION...
IN WAKE OF DAY-3 UPPER TROUGH OVER ERN CONUS...DEEP/COLD FROPA
THROUGH GULF WILL PRECLUDE POTENTIAL FOR WELL-ORGANIZED SVR FOR A
FEW DAYS THEREAFTER. MANY MREF MEMBERS...AS WELL AS OPERATIONAL
SPECTRAL/ECMWF...CONSISTENTLY INDICATE SOME MANIFESTATION OF
SHORTWAVE TROUGH NOW E OF JAPAN WILL MOVE ASHORE PACIFIC NW AROUND
DAY-6/1-2 MAR. THIS TROUGH THEN IS PROGGED TO AMPLIFY CONSIDERABLY
AS IT MOVES SEWD OVER CENTRAL/SRN ROCKIES DAYS 7-8...2-4
MAR...PRECEDED BY LOW LEVEL FRONTOGENESIS/CYCLOGENESIS OVER SOME
PORTION CENTRAL/SRN PLAINS. CONSIDERABLE DISPARITY EXISTS IN
PROGGED RESPONSE OF CONVECTIVELY CRITICAL LOW LEVEL MASS FIELDS TO
THIS FEATURE...AS WELL AS TO PRECURSORY/SRN STREAM WAVE THAT MAY
EJECT FROM NWRN MEX ACROSS TX OR NERN MEX IN RESPONSE TO
LARGER/APCHG TROUGH.
.EDWARDS.. 02/25/2008
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