SWODY2
SPC AC 231710
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CDT THU OCT 23 2008
VALID 241200Z - 251200Z
...NO SVR TSTM AREAS FORECAST...
...ERN GULF COAST STATES/SRN ATLANTIC SEABOARD...
A LARGE AND WELL-DEVELOPED UPPER-LEVEL LOW WILL MIGRATE NEWD ACROSS
THE MID MISSOURI VALLEY FRIDAY. THE SRN END OF THE UPPER-LEVEL
TROUGH IS FORECAST TO EXTEND SWD INTO THE LOWER MS VALLEY. AHEAD OF
THIS FEATURE...ABUNDANT LOW-LEVEL MOISTURE WILL EXIST ACROSS SRN
MS...SRN AL...SRN GA AND FL WHERE LOWER TO MID 60S F ARE FORECAST.
MODEL FORECASTS SUGGEST SCATTERED THUNDERSTORMS WILL BE ONGOING ON
THE WRN EDGE OF THE LOW-LEVEL MOISTURE NEAR A SFC TROUGH EARLY IN
THE PERIOD. THE SFC TROUGH AND CONVECTION SHOULD SPREAD EWD DURING
THE DAY REACHING THE ERN FL PANHANDLE AND SRN GA BY LATE AFTERNOON.
FORECAST SOUNDINGS ACROSS THE MOIST AXIS SHOW STRONG VERTICAL SHEAR
PROFILES WITH ENOUGH INSTABILITY AND ADEQUATE LOW-LEVEL SHEAR FOR A
MARGINAL TORNADO THREAT. A FEW STRONG WIND GUSTS MAY ALSO OCCUR WITH
THE FASTER MOVING BOWING-LINE SEGMENTS WITH ACCESS TO LOCALLY
MAXIMIZED INSTABILITY. THE MARGINAL SEVERE THREAT MAY EXIST AS FAR
SOUTH AS CNTRL FL WHERE SFC DEWPOINTS SHOULD BE HIGHER AND RESULTANT
INSTABILITY MAY BE A BIT STRONGER.
..BROYLES.. 10/23/2008
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