SWODY1
SPC AC 231626
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1026 AM CST SAT FEB 23 2008
VALID 231630Z - 241200Z
..NO SVR TSTM AREAS FORECAST...
..FL...
RELATIVELY FAST ZONAL FLOW WILL BE MAINTAINED ACROSS THE SOUTHERN
UNITED STATES TODAY. MEANWHILE...SURFACE COLD FRONT IS SAGGING
SOUTHWARD ACROSS THE FL PENINSULA. SCATTERED SHOWERS AND
THUNDERSTORMS HAVE BEEN OCCURRING ALONG THIS FRONT...AND SHOULD
CONTINUE THROUGH THE AFTERNOON. VISIBLE SATELLITE IMAGERY SUGGESTS
RELATIVELY STRONG HEATING WILL OCCUR ALONG AND SOUTH OF
FRONT...WHERE DEWPOINTS IN THE 70S WILL CONTRIBUTE TO MODERATE
INSTABILITY. WHILE THE STRONGEST UPDRAFTS MAY POSE A THREAT OF
GUSTY WINDS AND HAIL...OVERALL SEVERE THREAT IS LIKELY TO BE
MITIGATED BY SUBSIDENCE INVERSION ALOFT INDICATED BY FORECAST
SOUNDINGS. THIS WILL TEND TO LIMIT UPDRAFT STRENGTH DESPITE
MODERATELY SHEARED ENVIRONMENT.
..OK/AR...
SHORTWAVE TROUGH NOW OVER THE CENTRAL HIGH PLAINS WILL TRACK
EASTWARD AND AFFECT PARTS OF OK/AR LATER THIS AFTERNOON AND EVENING.
STEEP MID LEVEL LAPSE RATES AND STRONG UVVS WILL ACCOMPANY THIS
SYSTEM. MODELS ARE IN GENERAL AGREEMENT THAT ISOLATED THUNDERSTORMS
ARE POSSIBLE. ALSO...FORECAST SOUNDINGS SUGGEST SOME THREAT OF HAIL
IN STRONGEST CORES ALONG A NARROW CORRIDOR FROM SOUTHEAST OK INTO
CENTRAL AR.
.HART.. 02/23/2008
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