SWOD48
SPC AC 230955
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0355 AM CST SUN JAN 23 2011
VALID 261200Z - 311200Z
THE MEDIUM RANGE MODELS BEGIN THE DAY 4 TO 8 PERIOD WITH AN
UPPER-LEVEL LOW IN THE SERN STATES MOVING THE SYSTEM ACROSS
MID-ATLANTIC BY LATE WEDNESDAY AFTERNOON/DAY 4. STRONG THUNDERSTORMS
WILL BE POSSIBLE AHEAD OF AND TO THE SOUTHEAST OF THE TROUGH AXIS
ACROSS THE CAROLINAS WEDNESDAY MORNING. THIS THREAT APPEARS TO END
AS THE UPPER-LEVEL LOW MOVES INTO THE WRN ATLANTIC WEDNESDAY
EVENING. ON THURSDAY/DAY 5 AND FRIDAY/DAY 6...THE MODELS DEVELOP AN
UPPER-LEVEL TROUGH OVER THE MS VALLEY WITH NORTH TO NWLY FLOW IN THE
GREAT PLAINS. THIS PATTERN WOULD KEEP DRY AIR IN PLACE ACROSS MOST
OF THE CONUS. BY THE WEEKEND...THE MODELS ARE STILL IN FAIRLY GOOD
AGREEMENT KEEPING NWLY FLOW IN PLACE IN THE CNTRL STATES SUGGESTING
THE CHANCE FOR THUNDERSTORM ACTIVITY ACROSS THE CONUS WILL REMAIN
LOW.
..BROYLES.. 01/23/2011
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