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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 594

NWS STORM PREDICTION CENTER NORMAN OK

635 AM CDT WED AUG 29 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST ALABAMA

       SOUTHEAST LOUISIANA

       SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 635 AM UNTIL

400 PM 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 75 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 30 MILES EAST SOUTHEAST OF

MOBILE ALABAMA TO 60 MILES WEST NORTHWEST OF NEW ORLEANS

LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 593. WATCH NUMBER 593 WILL NOT BE IN EFFECT AFTER

635 AM CDT.



DISCUSSION...HURRICANE ISAAC WILL CONTINUE TO DRIFT SLOWLY WWD TODAY

NEAR THE SE LA COAST.  MULTIPLE CONVECTIVE BANDS WILL PERSIST IN THE

AREA OF STRONGER LOW-LEVEL SHEAR NE OF THE CYCLONE CENTER...WHERE

THE ENVIRONMENT WILL BE FAVORABLE FOR EMBEDDED SUPERCELLS AND A FEW

TORNADOES THROUGH THIS AFTERNOON.



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 16050.





...THOMPSON

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