

320 

WWUS20 KWNS 152144

SEL8

SPC WW 152144

ALZ000-FLZ000-GAZ000-CWZ000-160400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 738

NWS STORM PREDICTION CENTER NORMAN OK

445 PM EST SAT DEC 15 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST ALABAMA

       FLORIDA PANHANDLE

       SOUTHWEST GEORGIA

       COASTAL WATERS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 445 PM UNTIL

1100 PM EST.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST NORTHWEST OF

PANAMA CITY FLORIDA TO 15 MILES EAST NORTHEAST OF VALDOSTA

GEORGIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS.



DISCUSSION...THUNDERSTORMS CONTINUE TO INCREASE IN COVERAGE AND

INTENSITY OVER SOUTHEAST AL/FL PANHANDLE/SOUTHWEST GA AHEAD OF

DEEPENING SURFACE LOW.  STRONG LOW LEVEL VERTICAL SHEAR AND

DEWPOINTS IN THE 70S WILL PROMOTE A RISK OF SUPERCELL STORM

STRUCTURES CAPABLE OF DAMAGING WINDS AND ISOLATED TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...HART

