SWOD48
SPC AC 130835
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0335 AM CDT THU MAR 13 2008
VALID 161200Z - 211200Z
..DISCUSSION...
LATEST ECMWF AND GFS MEDIUM RANGE GUIDANCE ARE IN REASONABLY GOOD
AGREEMENT WITH TROUGH EVOLUTION EARLY NEXT WEEK ACROSS THE SWRN U.S.
DIFFERENCES BEGIN TO EMERGE BEYOND DAY5 AS ECMWF SLOWS THE
PROGRESSION OF THE TROUGH INTO TX WHILE THE GFS EJECTS THE TROUGH
QUICKLY INTO THE TN/OH VALLEY MID WEEK. GULF MOISTURE SHOULD
READILY RETURN AHEAD OF THIS TROUGH INTO THE SRN PLAINS AND
INSTABILITY WILL LIKELY SUPPORT STRONG/SEVERE DEEP CONVECTION ON
MONDAY. SEVERE RISK WILL LIKELY BE EXTENDED INTO DAY6 AS
PROGRESSION OF UPPER TROUGH BECOMES MORE OBVIOUS.
.DARROW.. 03/13/2008
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