SWODY2
SPC AC 291723
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1123 AM CST SUN NOV 29 2009
VALID 301200Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
...LOWER MS VALLEY AND TX COAST...
AN UPPER-LEVEL TROUGH WILL MOVE ACROSS THE MS VALLEY MONDAY AS A
COLD FRONT ADVANCES SEWD INTO THE CNTRL GULF COAST STATES AND SOUTH
TEXAS. THUNDERSTORMS WILL BE POSSIBLE ALONG THE FRONT IN THE LOWER
MS VALLEY MONDAY MORNING BUT COVERAGE SHOULD DECREASE AS LOW-LEVEL
FLOW RAPIDLY WEAKENS AROUND MIDDAY. FURTHER SOUTHWEST ACROSS THE
LOWER TX COAST...THUNDERSTORMS WILL ALSO BE POSSIBLE MONDAY
AFTERNOON. IN SPITE OF STRONG VERTICAL SHEAR...INSTABILITY IS
EXPECTED TO BE TOO WEAK FOR ORGANIZED THUNDERSTORMS.
...WEST AND CNTRL TX...
AN UPPER-LEVEL LOW WILL APPROACH FAR WEST TX MONDAY NIGHT.
INCREASING LARGE-SCALE ASCENT AND COLD AIR ALOFT IN THE CORE OF THE
SYSTEM MAY BE SUFFICIENT FOR ISOLATED THUNDERSTORM DEVELOPMENT LATE
MONDAY NIGHT IN FAR WEST TX EWD TO THE TX HILL COUNTRY. DUE TO WEAK
INSTABILITY...THIS ACTIVITY IS NOT EXPECTED TO POSE A SEVERE WEATHER
THREAT.
..BROYLES.. 11/29/2009
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