DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 271715
SWODY2
SPC AC 271713

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1113 AM CST TUE NOV 27 2012

VALID 281200Z - 291200Z

...NO SVR TSTM AREAS FORECAST...

...CNTRL CA COAST...
TSTM CHANCES ARE EXPECTED TO BE GENERALLY NON-EXISTENT ACROSS THE
CONUS...WITH THE EXCEPTION BEING NEAR THE CNTRL CA COAST. A POTENT
SHORTWAVE TROUGH WILL MOVE THROUGH CNTRL-NRN CA DURING THE MORNING
AND EARLY AFTERNOON AND WEAKEN AS IT MOVES INTO NV/ORE TOWARDS DUSK.
AN ACCOMPANYING LOOSE BAND OF LOW TOPPED CONVECTION --PERHAPS
RESULTING IN A FEW LIGHTNING STRIKES-- IS FORECAST TO MOVE ASHORE
COINCIDENT WITH A LOBE OF ASCENT DURING THIS TIMEFRAME. DESPITE A
STRONGLY SHEARED ENVIRONMENT...MEAGER INSTABILITY DEPICTED IN MODEL
FORECAST SOUNDINGS AND THE MAJORITY OF SREF MEMBERS /50-150 J/KG
MUCAPE/ WILL ACT TO RETARD UPDRAFT STRENGTH AND LIMIT SEVERE
CHANCES...PRECLUDING THE INTRODUCTION OF LOW SEVERE PROBABILITIES
ATTM.

..SMITH/PETERS.. 11/27/2012

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