SWODY1
SPC AC 211951
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0151 PM CST FRI NOV 21 2008
VALID 212000Z - 221200Z
...NO SVR TSTM AREAS FORECAST...
...GREAT LAKES...
COLDEST PART OF UPPER TROUGH WILL CONTINUE TO SHIFT EWD ACROSS THE
LOWER GREAT LAKES THIS AFTERNOON AND EVENING. THIS WILL MAINTAIN
STEEP LAPSE RATES/HIGH INVERSION HEIGHTS...ESPECIALLY ACROSS THE
WARMER LAKE WATERS /I.E. SST FROM 8C-11C/...SUPPORTING
LAKE EFFECT/BANDED SHALLOW MOIST CONVECTION WITH POTENTIAL FOR
ISOLATED LIGHTNING STRIKES. MOST ORGANIZED ACTIVITY SHOULD DIMINISH
IN INTENSITY BY 12Z SATURDAY AS UPPER TROUGH AND ASSOCIATED COLD
POCKET ALOFT MOVE INTO THE NORTHEASTERN U.S. BY THE END OF THE
PERIOD.
..PETERS.. 11/21/2008
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