SWODY1
SPC AC 271953
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0253 PM CDT SUN APR 27 2008
VALID 272000Z - 281200Z
...NO SVR TSTM AREAS FORECAST...
...SOUTH TX...
SYNOPTIC COLD FRONT CONTINUES TO SPREAD SOUTHWARD ACROSS
SOUTH/SOUTHEAST TX AT MID AFTERNOON. WITH A PRE-FRONTAL WIND
SHIFT/OUTFLOW SURGING SOUTHWARD JUST AHEAD OF THE FRONT...ORGANIZED
SEVERE POTENTIAL THE REMAINDER OF THE AFTERNOON APPEARS LIMITED. ANY
THREAT FOR ISOLATED SEVERE HAIL/WIND GUSTS OVER THE NEXT SEVERAL
HOURS WILL WANE BY SUNSET AS THE COLD FRONT CLEARS THE
SOUTH/SOUTHEAST TX COAST.
...PORTIONS OF LA/MS/AL INTO SOUTHERN APPALACHIANS/CAROLINAS...
BROAD AREA OF ISOLATED/MARGINAL SEVERE THUNDERSTORM POTENTIAL WILL
CONTINUE THROUGH LATE AFTERNOON/EARLY EVENING AMIDST A WEAK TO
MODERATELY UNSTABLE PRE-COLD FRONTAL AIRMASS. WEAK MID LEVEL LAPSE
RATES AND MODEST VERTICAL SHEAR OF 25-30 KT SHOULD TEMPER OVERALL
STORM ORGANIZATION/CONVECTIVE VIGOR THE REMAINDER OF THE AFTERNOON.
LARGELY ENHANCED BY THE DIURNAL HEATING CYCLE...ISOLATED STRONG WIND
GUST/HAIL THREATS SHOULD DIMINISH IN MOST LOCALES BY AROUND SUNSET.
..GUYER.. 04/27/2008
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