SWOMCD
SPC MCD 021748
GAZ000-FLZ000-021945-
MESOSCALE DISCUSSION 2186
NWS STORM PREDICTION CENTER NORMAN OK
1148 AM CST WED DEC 02 2009
AREAS AFFECTED...SRN GA...NRN FL
CONCERNING...TORNADO WATCH 788...
VALID 021748Z - 021945Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 788 CONTINUES.
WARM SECTOR AIR MASS CONTINUES SPREADING INLAND ACROSS NRN FL AND
SRN GA WITH DEWPOINTS RISING THRU THE MID 60S AND SFC TEMPS INTO LOW
70S. WHILE WEAK LAPSE RATES AND LITTLE SFC HEATING RESULT IN MLCAPES
GENERALLY REMAINING LESS THAN 800 J/KG...VERY STRONG SHEAR AND
FORCED ASCENT WITH APPROACH OF 100KT MID LEVEL WIND MAX...WILL
INCREASE THREAT OF TORNADIC SUPERCELLS THROUGH 19Z.
AT 1730Z CONVECTIVE LINE FROM JUST W OF COOK CO SSWWD THROUGH BROOKS
CO TO ERN WAKULLA CO IS INCREASING IN INTENSITY. EMBEDDED
SUPERCELLS ARE LIKELY WITHIN THE LINE WITH INDICATIONS OF
CIRCULATIONS NOW DEVELOPING ON THE COAST AND FURTHER OFFSHORE.
AT LEAST ISOLATED TORNADOES WILL BE POSSIBLE WITHIN ANY EMBEDDED
SUPERCELL THAT WILL BE MOVING 23045. OVERALL LINE MOVEMENT IS 27030.
..HALES.. 12/02/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CHS...TBW...JAX...FFC...TAE...
LAT...LON 31878440 32218386 32588284 32348202 31628141 31148146
30398164 30008192 29478235 29148302 29398389 31878440
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