SWODY1
SPC AC 111230
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0630 AM CST SAT FEB 11 2012
VALID 111300Z - 121200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A MID/UPPER-LEVEL SHORTWAVE TROUGH WILL MOVE EWD ACROSS THE ERN
CONUS WHILE AMPLIFYING TO THE SOUTH OF A DEEP POLAR VORTEX LOCATED
JUST EAST OF HUDSON BAY. AT THE SFC...A STRONG ANTICYCLONE AND
ASSOCIATED CONTINENTAL POLAR AIR MASS E OF THE ROCKIES WILL CONTINUE
TO EXPAND EWD/SEWD. STABLE THERMODYNAMIC PROFILES AND DIVERGENT SFC
FLOW ACCOMPANYING THIS ANTICYCLONE WILL PREVENT THE DEVELOPMENT OF
THUNDERSTORMS ACROSS THE ERN TWO-THIRDS OF THE CONUS. FARTHER
WEST...A CONUS-FULL-LATITUDE...MID/UPPER-LEVEL SHORTWAVE TROUGH WILL
MOVE EWD TOWARD THE GREAT BASIN AND SWRN STATES. DCVA IN ASSOCIATION
WITH THIS FEATURE MAY COMBINE WITH SUFFICIENT MID-LEVEL MOISTURE AND
INSTABILITY TO YIELD A FEW THUNDERSTORMS ACROSS PARTS OF THE CNTRL
GREAT BASIN LATE THIS AFTERNOON INTO TONIGHT.
..COHEN/MEAD.. 02/11/2012
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