

000 

WWUS20 KWNS 131512

SEL0

SPC WW 131512

ALZ000-FLZ000-GAZ000-CWZ000-132200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 20

NWS STORM PREDICTION CENTER NORMAN OK

910 AM CST TUE FEB 13 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST ALABAMA

       THE FLORIDA PANHANDLE

       SOUTHWEST GEORGIA

       COASTAL WATERS



EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 910 AM UNTIL

400 PM CST.



TORNADOES...HAIL TO 1 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 55 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST OF PANAMA

CITY FLORIDA TO 20 MILES NORTH OF CROSS CITY FLORIDA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU0).



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.



OTHER WATCH INFORMATION...CONTINUE...WW 19...



DISCUSSION...SMALL...ISOLATED STORMS ARE FORMING ATTM IN WARM

ADVECTION ZONE AHEAD OF MAIN CONVECTIVE LINE NOW APPROACHING THE WRN

END OF THE FL PANHANDLE.  SFC DEWPOINTS SHOULD CONTINUE TO SLOWLY

INCREASE IN WW AREA...WITH VALUES REACHING THE LOW 60S IN THE

PANHANDLE EARLY THIS AFTERNOON.  CONTINUED EWD ADVANCE OF CNTRL GULF

UPR LEVEL JET EXIT REGION/DIFFLUENCE ZONE...COUPLED WITH INCREASING

MOISTURE AND  MODEST SFC HEATING...SHOULD CREATE SETUP SUPPORTIVE OF

ADDITIONAL STORMS THROUGH THE DAY.  LOW LEVEL VEERING PROFILES WILL

BE PRESENT TO ENHANCE LOW LEVEL UPDRAFT ROTATION AND THE THREAT FOR

ISOLATED TORNADOES.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.

MEAN STORM MOTION VECTOR 24035.





...CORFIDI

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