ACUS02 KWNS 261726
SWODY2
SPC AC 261724
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1124 AM CST SAT JAN 26 2013
VALID 271200Z - 281200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A POSITIVELY TILTED UPPER TROUGH WILL AMPLIFY ACROSS THE WEST...WITH
AN ATTENDANT COLD FRONT REACHING THE CNTRL ROCKIES AND ERN GREAT
BASIN LATE IN THE PERIOD. SURFACE-BASED HEATING ACROSS THE GREAT
BASIN/FOUR CORNERS REGION WILL BE LIMITED OWING TO LINGERING...THICK
LOW-LEVEL CLOUDS. HOWEVER...COOLING THERMAL PROFILES COINCIDENT WITH
THE APPROACH OF THE UPPER SYSTEM MAY BE SUFFICIENT ENOUGH TO SUPPORT
MINIMAL INSTABILITY...WITH A STRIKE OR TWO OCCURRING WITH THE
ATTENDANT FRONTAL ASCENT.
MEANWHILE...A DEAMPLIFYING SHORT WAVE TROUGH INITIALLY LOCATED OVER
THE CNTRL/SRN ROCKIES WILL QUICKLY EJECT TO THE UPPER GREAT LAKES.
WARM ADVECTION WILL STRENGTHEN OVER PORTIONS OF THE PLAINS AND THE
MO VALLEY IN RESPONSE TO THE PASSING UPPER WAVE. THE RESULTING
ISENTROPIC ASCENT MAY SUPPORT A FEW ELEVATED THUNDERSTORMS NEAR THE
MO/IA/IL BORDERS...THOUGH NO SEVERE STORMS ARE EXPECTED.
..DISPIGNA/GUYER.. 01/26/2013
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