Tuesday, December 21, 2010

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 220054
SWODY1
SPC AC 220052

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0652 PM CST TUE DEC 21 2010

VALID 220100Z - 221200Z

...NO SVR TSTM AREAS FORECAST...

...COASTAL SOUTHERN CA...
SOUTHERN PIECE OF A BROAD EASTERN PACIFIC UPPER TROUGH WILL STEADILY
APPROACH THE CA COAST THROUGH EARLY WEDNESDAY. FORCED ASCENT
ALONG/AHEAD OF AN EASTWARD ADVANCING LOW/FRONT...COMBINED WITH
GRADUALLY STEEPENING LAPSE RATES ALOFT AND DEVELOPMENT OF WEAK
NEAR-COASTAL BUOYANCY...WILL YIELD SHOWERY CONVECTION/INCREASING
TSTM CHANCES OVERNIGHT/EARLY WEDNESDAY. AIDED BY FAVORABLE WIND
PROFILES...SOME STRONG/PERHAPS SEVERE LOW-TOPPED STORMS/SMALL
SUPERCELLS...WITH POTENTIAL FOR WIND GUSTS/WATERSPOUTS...WILL BE
POSSIBLE FOR THE COASTAL AREAS/IMMEDIATE OFFSHORE AREAS OF SOCAL
LATE TONIGHT/EARLY WEDNESDAY.

..GUYER.. 12/22/2010

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