SWODY1
SPC AC 180543
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1143 PM CST MON DEC 17 2007
VALID 181200Z - 191200Z
..NO TSTM AREAS FORECAST...
..SYNOPSIS...
MID-LEVEL FLOW PATTERN WILL AMPLIFY SLIGHTLY THIS PERIOD...AS
SHORT-WAVE TROUGH MOVES INTO/ACROSS THE WRN CONUS. THIS WILL
CONTRIBUTE TO SOME UPSTREAM AMPLIFICATION -- BOTH OF THE RIDGE
MOVING ACROSS THE ROCKIES AND INTO THE PLAINS...AND OF THE WEAK
TROUGH STILL FURTHER UPSTREAM FORECAST TO MOVE OUT OF THE PLAINS AND
INTO THE MIDWEST/GREAT LAKES.
WHILE A STRIKE OR TWO COULD OCCUR OFF THE CA COAST DURING THE
AFTERNOON IN CONJUNCTION WITH THE WRN TROUGH...AND PERHAPS A STRIKE
OVER THE WRN GULF ASSOCIATED WITH THE SECOND/UPSTREAM
TROUGH...OVERALL THUNDER POTENTIAL OVER THE CONUS APPEARS LOW/LESS
THAN 10% PROBABILITY.
.GOSS.. 12/18/2007
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