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WWUS20 KWNS 022052

SEL2

SPC WW 022052

LAZ000-MSZ000-CWZ000-030300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 882

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT TUE SEP 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST AND NORTHEAST LOUISIANA

       CENTRAL AND SOUTHWEST MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 350 PM UNTIL

1000 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 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHWEST OF JACKSON

MISSISSIPPI TO 20 MILES SOUTHWEST OF NEW ORLEANS LOUISIANA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 881. WATCH NUMBER 881 WILL NOT BE IN EFFECT AFTER

350 PM CDT.



DISCUSSION...THREAT FOR SUPERCELLS AND TORNADOES IN N-S RAINBANDS

WILL PERSIST INTO THE EVENING IN A MOIST ENVIRONMENT WITH STRONG

LOW-LEVEL SHEAR...E AND SE OF THE CENTER OF TD GUSTAV.  THE TORNADO

THREAT MAY GRADUALLY DIMINISH BY EARLY TONIGHT AS BOUNDARY LAYER

BASED INSTABILITY WEAKENS...AND THE WIND FIELD WEAKENS VERY SLOWLY

WITH TIME.



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

500. MEAN STORM MOTION VECTOR 18035.





...THOMPSON

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