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WWUS20 KWNS 030652

SEL6

SPC WW 030652

ALZ000-FLZ000-LAZ000-MSZ000-CWZ000-031500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 826

NWS STORM PREDICTION CENTER NORMAN OK

145 AM CDT SAT SEP 3 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       FAR SOUTHERN ALABAMA

       WESTERN FLORIDA PANHANDLE

       SOUTHEASTERN LOUISIANA

       FAR SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS SATURDAY MORNING FROM 145 AM UNTIL 1000 AM CDT.



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

GUSTS TO 75 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 30 MILES WEST OF HOUMA

LOUISIANA TO 40 MILES EAST NORTHEAST OF PENSACOLA FLORIDA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU6).



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 824...WW 825...



DISCUSSION...THREAT FOR ISOLD TORNADOES EXPECTED TO GRADUALLY

INCREASE OVER THE CNTRL GULF CST THROUGH LATER TODAY AS T.S. LEE

MOVES SLOWLY NWD.  ENVELOPE OF RICH TROPICAL MOISTURE ASSOCIATED

WITH LEE APPEARS TO HAVE EDGED NW INTO EXTREME SERN LA...AND SHOULD

SPREAD FARTHER NNW ACROSS SE LA AND EXTREME SRN MS LATER THIS

MORNING.  WITH NEIGHBORING UPR LOW MAINTAINING SOMEWHAT COOLER THAN

NORMAL MID LVL TEMPS INVOF THE TROPICAL DISTURBANCE...DEEP

INSTABILITY HAS BEEN SUFFICIENT TO MAINTAIN SCTD TSTMS CLOSE JUST

OFF THE SE LA CST...WITH OTHER STORMS PRESENT OVER THE GULF WATERS S

OF VPS.  GIVEN EXPECTED STRENGTHENING OF LOW LVL DIRECTIONAL/SPEED

SHEAR...AND INCREASING LOW LVL MOISTURE...SETUP MAY POSE AN

INCREASING RISK FOR LOW LVL MESOCYCLONES/TORNADOES WITH THE

CONVECTION THROUGH LATER THIS MORNING.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 15035.





...CORFIDI

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