WATCHES: Tornado Watch Number 591

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SPC WW 281448
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URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 591
NWS STORM PREDICTION CENTER NORMAN OK
945 AM CDT TUE AUG 28 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

SOUTHWEST ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHEAST LOUISIANA
FAR SOUTHEAST MISSISSIPPI
COASTAL WATERS

EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 945 AM UNTIL 700
PM CDT.

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 55 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF NEW ORLEANS
LOUISIANA TO 20 MILES EAST 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.

DISCUSSION...A SLOW INCREASE IN CONVECTION HAS BEEN NOTED THIS
MORNING ON OUTER PERIPHERY OF ISAAC WHERE BREAKS IN THE CLOUDS ARE
SUPPORTING AIR MASS DESTABILIZATION. THIS TREND SHOULD CONTINUE
THROUGH THE REMAINDER OF THE MORNING AND THIS AFTERNOON WITH AN
INCREASED RISK FOR MINI SUPERCELLS AND AN ASSOCIATED TORNADO THREAT.

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
450. MEAN STORM MOTION VECTOR 11040.


...MEAD

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