MESOSCALE DISCUSSION 0492
NWS STORM PREDICTION CENTER NORMAN OK
0240 PM CDT SAT APR 14 2007
AREAS AFFECTED...GA...NRN FL
CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY
VALID 141940Z - 142045Z
CONSIDERABLE SUNSHINE AND BOUNDARY LAYER MOISTENING HAVE
ENHANCED INSTABILITY ACROSS MUCH OF SRN GA/NRN FL. 17Z
SOUNDING FROM TLH CLEARLY DEPICTS CAP THAT HAS SUPPRESSED
WARM SECTOR DEVELOPMENT...THOUGH ISOLATED SHOWERS ARE NOW
DEEPENING ACROSS SWRN GA SUGGESTING STEEPEN LOW LEVEL
LAPSE RATES HAVE ERODED INHIBITION GREATLY. INCREASING
WARM ADVECTION ACROSS GA WILL ENHANCE SUPERCELL THREAT...
ESPECIALLY ALONG WARM FRONT. ADDITIONALLY...MULTIPLE
LONG-LIVED POTENTIALLY TORNADIC STORMS WILL APPROACH
WCNTRL GA OVER THE NEXT FEW HOURS. TORNADO WATCH WILL
LIKELY BE REQUIRED BY 21Z.
..DARROW.. 04/14/2007
.JPG)
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