DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 290051
SWODY1
SPC AC 290049

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0649 PM CST WED NOV 28 2012

VALID 290100Z - 291200Z

...NO TSTM AREAS FORECAST...

...WESTERN STATES....
AN INITIAL SHORT WAVE IMPULSE PROGRESSING ACROSS THE SIERRA NEVADA
INTO PARTS OF THE NORTHERN INTERMOUNTAIN REGION AND GREAT BASIN IS
NOT EXPECTED TO CONTRIBUTE TO SUFFICIENT DESTABILIZATION TO SUPPORT
AN APPRECIABLE RISK FOR THUNDERSTORM ACTIVITY OVERNIGHT.
MEANWHILE...THUNDERSTORM PROBABILITIES ALSO APPEAR NEGLIGIBLE ALONG
THE PACIFIC COAST...AS FORCING FOR UPWARD VERTICAL MOTION ASSOCIATED
WITH SHORT WAVE TROUGHS CIRCULATING AROUND THE BROAD COLD MID/UPPER
LOW OVER THE EASTERN PACIFIC REMAIN OFFSHORE.

...FLORIDA...
LOW-LEVEL CONVERGENCE ASSOCIATED WITH NORTHEASTERLY POST FRONTAL
FLOW...COUPLED WITH WEAK BOUNDARY LAYER INSTABILITY...IS SUPPORTING
SCATTERED SHOWERS ALONG SOUTHEAST FLORIDA COASTAL AREAS. THIS MAY
PERSIST AND DEVELOP SOUTHWESTWARD INTO PARTS OF THE KEYS...BUT A
RELATIVELY WARM MID-LEVEL ENVIRONMENT IS EXPECTED TO INHIBIT
INTENSIFICATION INTO THUNDERSTORMS.

..KERR.. 11/29/2012

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