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WWUS20 KWNS 020023

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 11

NWS STORM PREDICTION CENTER NORMAN OK

620 PM CST TUE FEB 1 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST ALABAMA

       WESTERN AND CENTRAL FLORIDA PANHANDLE

       SOUTHWEST GEORGIA

       COASTAL WATERS



EFFECTIVE THIS TUESDAY EVENING FROM 620 PM UNTIL 1100 PM CST.



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

GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF DOTHAN

ALABAMA TO 25 MILES WEST SOUTHWEST OF PANAMA CITY FLORIDA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



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 10...



DISCUSSION...SRN AL/FAR WRN FL PANHANDLE SQLN EXPECTED TO CONTINUE E

AT 40+ KTS...WHILE INDIVIDUAL STORMS/LEWPS MOVE NNE ALONG IT AT A

SOMEWHAT GREATER SPEED.  AHEAD OF THE SQLN...MORE ISOLD STORMS HAVE

FORMED ALONG A CONFLUENCE AXIS EXTENDING FROM SE AL SSW INTO THE

GULF OF MEXICO /REF MCD 75/.  WHILE SFC-BASED INSTABILITY WILL

REMAIN WEAK...KEVX VWP APPEARS FAVORABLE FOR SUSTAINED

SUPERCELLS...GIVEN EXISTING STORMS.  COUPLED WITH GLANCING INFLUENCE

OF INTENSE MS VLY UPR VORT...SETUP MAY SUPPORT A CONTINUED RISK FOR

ISOLD TORNADOES AND LOCALLY DMGG WIND GUSTS.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

400. MEAN STORM MOTION VECTOR 23045.





...CORFIDI

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