SWODY3
SPC AC 100654
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1254 AM CST SAT DEC 10 2011
VALID 121200Z - 131200Z
...SYNOPSIS...
WITHIN A SOUTHERN BRANCH OF THE PREVAILING SPLIT UPPER FLOW...
MODELS INDICATE THAT RIDGING WILL CONTINUE TO BUILD NORTHWARD
THROUGH MUCH OF THE SOUTH CENTRAL AND SOUTHEASTERN U.S... DOWNSTREAM
OF AN AMPLIFIED TROUGH ACROSS THE SOUTHWEST. A SOUTHERLY LOW-LEVEL
RETURN FLOW OF MOISTURE MAY COMMENCE ACROSS THE LOWER RIO GRANDE
VALLEY INTO PARTS OF THE SOUTHERN PLAINS...BUT IT REMAINS UNCLEAR
WHETHER DESTABILIZATION WILL EVEN BECOME SUPPORTIVE OF WEAK
THUNDERSTORM ACTIVITY PRIOR TO 12Z TUESDAY. THE MID-LEVEL COLD CORE
OF THE SOUTHWESTERN TROUGH APPEARS LIKELY TO MIGRATE INLAND ACROSS
SOUTHERN CALIFORNIA MONDAY...AND ASSOCIATED INSTABILITY MAY BE
ACCOMPANIED BY A COUPLE OF THUNDERSTORMS AROUND THE SAN DIEGO
AREA...PERHAPS EASTWARD INTO PARTS OF THE LOWER COLORADO VALLEY AND
SOUTHERN PLATEAU. HOWEVER ...THE SEVERE THREAT APPEARS
NEGLIGIBLE...AS DOES CONVECTIVE POTENTIAL ELSEWHERE ACROSS THE
NATION.
..KERR.. 12/10/2011
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