SWODY1
SPC AC 231232
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0632 AM CST MON NOV 23 2009
VALID 231300Z - 241200Z
...NO SVR TSTM AREAS FORECAST...
PRIMARY FEATURE OF INTEREST THIS FORECAST PERIOD IS THE VIGOROUS
COLD TROUGH TRANSLATING EWD FROM ROCKIES INTO THE CENTRAL PLAINS BY
TONIGHT. UPPER LOW DEVELOPS OVER KS PROVIDING STRONG ASCENT
DOWNSTREAM ALONG WITH RELATIVELY STEEP LAPSE RATES. LIMITED
MOISTURE/INSTABILITY PRECLUDES OTHER THAN WEAK THUNDERSTORMS TONIGHT
IN ADVANCE OF DEVELOPING UPPER LOW AND SURFACE CONVERGENCE WITH
ASSOCIATED SURFACE LOW AND COLD FRONT ERN KS/NE INTO NWRN MO AND WRN
IA.
WEAK FRONT STALLED ACROSS CENTRAL FL WILL PROVIDE SOME CONVERGENCE
TO TRIGGER A FEW AFTERNOON THUNDERSTORMS IN A MOIST AND MODESTLY
UNSTABLE AIR MASS WHERE MLCAPES S OF FRONT RISE TO 1500 J/KG.
..HALES/JEWELL.. 11/23/2009
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