SWODY2
SPC AC 310638
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1238 AM CST THU DEC 31 2009
VALID 011200Z - 021200Z
...NO SVR TSTM AREAS FORECAST...
...FL...
A SHORTWAVE TROUGH EMBEDDED WITHIN THE SOUTHERN PORTION/BASE OF AN
EASTERN STATES LONGWAVE TROUGH WILL RACE EAST-NORTHEASTWARD OVER THE
SOUTHEAST STATES TO THE WESTERN ATLANTIC DURING THE DAY.
SHOWERS/SOME TSTMS WILL LIKELY BE ONGOING FRIDAY MORNING ALONG/JUST
AHEAD OF A SOUTHEAST ADVANCING COLD FRONT ACROSS THE FL PENINSULA.
AMIDST STRONG/BUT NEARLY UNIDIRECTIONAL DEEP TROPOSPHERIC
FLOW...ONGOING CLOUD COVER/PRECIPITATION ALONG/AHEAD OF THE
FRONT...WITH POOR LAPSE RATES AND WEAK PRE-FRONTAL BUOYANCY
INLAND...IMPLY A VERY LOW RISK FOR SEVERE STORMS ACROSS THE SOUTHERN
HALF OF FL.
...ELSEWHERE...
RELATIVELY LOW AMPLITUDE WEST-NORTHWESTERLY FLOW ALOFT WILL EXIST
OVER THE WESTERN HALF OF THE CONUS AS A SHORTWAVE TROUGH MINORS OVER
THE PACIFIC NORTHWEST/BRITISH COLUMBIA VICINITY. THE PREVALENCE OF
COLD/STABLE CONDITIONS WILL LIMIT TSTM POTENTIAL AS THE SOUTHEAST
STATES COLD FRONT SWEEPS ACROSS THE REMAINDER OF THE GULF OF MEXICO
AND ARCTIC HIGH PRESSURE BEGINS TO DEVELOP SOUTHWARD ACROSS THE
NORTH CENTRAL STATES.
..GUYER.. 12/31/2009
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