SWOD48
SPC AC 300940
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0340 AM CST WED DEC 30 2009
VALID 021200Z - 071200Z
...DISCUSSION...
IN THE WAKE OF THE DAY 3 COLD FRONTAL INTRUSION ACROSS THE GULF OF
MEXICO...LATEST MEDIUM RANGE GUIDANCE IMPLIES A VERY QUIET PATTERN
FOR DEEP CONVECTION/TSTMS THROUGH THE DAY 4-8 PERIOD. WITH A
LONGWAVE TROUGH TO GENERALLY DOMINATE THE EASTERN HALF OF THE
CONUS...THE PREVALENCE OF ARCTIC/CANADIAN SURFACE HIGH PRESSURE
ACROSS CENTRAL PORTIONS OF CANADA/CONUS AND COLD CONTINENTAL
TRAJECTORIES IMPLY A VERY LOW SEVERE POTENTIAL THROUGH EARLY NEXT
WEEK.
..GUYER.. 12/30/2009
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