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041 

WWUS20 KWNS 302057

SEL8

SPC WW 302057

ALZ000-LAZ000-MSZ000-CWZ000-310300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 598

NWS STORM PREDICTION CENTER NORMAN OK

400 PM CDT THU AUG 30 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EXTREME WESTERN ALABAMA

       SOUTHEAST LOUISIANA

       MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 400 PM UNTIL

1000 PM CDT.



TORNADOES...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS

LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST NORTHWEST OF

JACKSON MISSISSIPPI TO 45 MILES SOUTHEAST OF MERIDIAN

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 597...



DISCUSSION...FAVORABLE WIND PROFILES CONTINUE OVER THE ERN

SEMI-CIRCLE OF TD ISAAC AS IT MOVES SLOWLY NNWWD OVER NRN LA.  VAD

WINDS AT KDGX...KGWX AND KMOB MAINTAIN STRONG LOW LEVEL WINDS AND

SHEAR SUPPORTIVE OF SHALLOW SUPERCELL STRUCTURES INTO THE EVENING

HOURS...WITH A CONTINUING THREAT FOR ISOLATED TORNADOES.



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

TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI

WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 18035.





...WEISS

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