SWODY1
SPC AC 031546
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0946 AM CST MON JAN 03 2011
VALID 031630Z - 041200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS AND FORECAST...
A SPLIT FLOW UPPER-AIR PATTERN WILL PERSIST THROUGH THE DAY ONE
PERIOD...FEATURING A STRONG SHORT WAVE TROUGH DIGGING SEWD THROUGH
THE NRN PLAINS AND UPPER GREAT LAKES...AND SRN CA LOW SHEARING EWD
THROUGH THE FOUR CORNERS REGION. AT THE SURFACE...BROAD ANTICYCLONE
CENTERED OVER MS/AL THIS MORNING WILL SHIFT EWD...ALLOWING FOR THE
RETURN OF A MODIFIED CONTINENTAL AIR MASS THROUGH SRN TX.
SOME SHALLOW CONVECTION WILL BE POSSIBLE TODAY ALONG THE SRN CA
COAST IN CONJUNCTION WITH ABOVE-MENTIONED UPPER SYSTEM SLOWLY
PROGRESSING EWD. WHILE AN ISOLATED LIGHTNING STRIKE IS
POSSIBLE...12Z SAN DIEGO SOUNDING OBSERVATION AND MODEL FORECAST
SOUNDINGS SUGGEST THAT CAPE PROFILE WILL REMAIN TOO SHALLOW TO
SUPPORT A MORE ROBUST THUNDER THREAT. ELSEWHERE...PRONOUNCED
CAPPING OBSERVED BY 12Z DRT/CRP/BRO SOUNDINGS WILL INHIBIT
DEEP...MOIST CONVECTION THROUGH TONIGHT WITHIN STRENGTHENING
LOW-LEVEL WAA REGIME OVER THE SRN PLAINS.
..MEAD.. 01/03/2011
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