SWODY1
SPC AC 301939
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0139 PM CST MON NOV 30 2009
VALID 302000Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
PREV FCST APPEARS ON TRACK AND NO CHANGES HAVE BEEN MADE.
..RACY.. 11/30/2009
.PREV DISCUSSION... /ISSUED 1012 AM CST MON NOV 30 2009/
...SYNOPSIS...
IN THE WAKE OF A NRN STREAM SHORTWAVE TROUGH NOW CROSSING THE OH
VALLEY...A SURFACE COLD FRONT WILL CONTINUE SEWD ACROSS THE N
CENTRAL AND NE GULF COAST TODAY...AND OFF THE SE ATLANTIC COAST
TONIGHT. WEAK INSTABILITY/ASCENT WILL SUPPORT A THREAT FOR ISOLATED
THUNDERSTORMS INVOF THE MS DELTA UNTIL FROPA. FARTHER W...A CLOSED
LOW OVER NW MEXICO WILL MOVE EWD OVER NRN MEXICO AND APPROACH THE TX
BIG BEND EARLY TUESDAY. MID LEVEL ASCENT WITH DCVA DOWNSTREAM FROM
THE LOW OVER SW TX...AND LOW-LEVEL WAA OVER CENTRAL TX ON THE NOSE
OF A DEVELOPING LLJ...WILL CONTRIBUTE TO THE POSSIBILITY OF A FEW
ELEVATED THUNDERSTORMS TONIGHT. CYCLOGENESIS IS EXPECTED NEAR THE
END OF THE PERIOD ALONG THE STALLED FRONT JUST OFF THE LOWER TX
COAST...BUT THE UNSTABLE WARM SECTOR WILL LIKELY REMAIN OFFSHORE.
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