SPC AC 281601
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1001 AM CST MON DEC 28 2009
VALID 281630Z - 291200Z
...NO TSTM AREAS FORECAST...
A COLD GENERALLY STABLE POLAR AIR MASS NOW COVERS THE CONUS. STRONG
TROUGH DIGGING SEWD ACROSS THE NORTHEAST STATES WILL INCREASE
POTENTIAL FOR SHALLOW CONVECTION PRIMARILY LEE OF LE/LO...HOWEVER
LIGHTNING NOT LIKELY GIVEN THERE IS VIRTUALLY NO CAPE EXPECTED.
CURRENTLY THERE IS ISOLATED LIGHTNING BEING DETECTED WITH WEAK UPPER
LOW OFFSHORE SRN CA TO W OF 120W. THIS ACTIVITY SHOULD DISSIPATE AS
UPPER SYSTEM MOVES EWD AND WEAKENS AS WELL AS ENCOUNTERING A DRIER
AIR MASS OVER SRN CA.
..HALES.. 12/28/2009
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
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