SWODY1
SPC AC 231940
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0240 PM CDT SUN MAR 23 2008
VALID 232000Z - 241200Z
..NO SVR TSTM AREAS FORECAST...
..SOUTH FL...
SOUTH OF A COLD FRONT...STRONG/ISOLATED SEVERE STORMS WILL CONTINUE
NEXT HOUR OR TWO ACROSS THE SOUTHEAST FL PENINSULA...REFERENCE
MESOSCALE DISCUSSION 482 FOR SHORT TERM GUIDANCE. WITH AROUND 40 KT
OF EFFECTIVE BULK SHEAR...AMPLE HEATING/BOUNDARY LAYER MOISTURE WITH
AROUND 1000 J/KG MLCAPE WILL CONTRIBUTE TO A SHORT TERM/ISOLATED
SEVERE RISK BEFORE STORMS EXIT THE SOUTHEAST FL COAST THIS
AFTERNOON. EXPECTED SHORT DURATION OF THE THREAT PRECLUDES THE
INTRODUCTION OF SEVERE PROBABILITIES.
.LOWER OH RIVER VALLEY...
BENEATH COLD MID LEVEL TROUGH /-30 C AT 500 MB/...SHALLOW CONVECTION
WILL CONTINUE TO SPREAD SOUTHEASTWARD ACROSS THE LOWER OH VALLEY
INTO THIS EVENING. A FEW LIGHTNING STRIKES CANNOT BE RULED OUT PRIOR
TO SUNSET OWING TO MODEST SURFACE HEATING/SCANT INSTABILITY AND SOME
POTENTIAL FOR CHARGE SEPARATION IN THE VERTICAL.
.GUYER.. 03/23/2008
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