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ARZ000-LAZ000-MSZ000-040700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 887

NWS STORM PREDICTION CENTER NORMAN OK

600 PM CDT WED SEP 3 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN ARKANSAS

       NORTHERN AND EASTERN LOUISIANA

       WESTERN AND CENTRAL MISSISSIPPI



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 600 PM

UNTIL 200 AM 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 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES NORTHWEST OF OXFORD

MISSISSIPPI TO 10 MILES WEST SOUTHWEST OF BATON ROUGE LOUISIANA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 886. WATCH NUMBER 886 WILL NOT BE IN EFFECT AFTER

600 PM CDT.



DISCUSSION...THREAT FOR SUSTAINED STORMS WITH LOW LVL ROTATION/ISOLD

TORNADOES EXPECTED TO PERSIST AND SPREAD NNE INTO THE MS DELTA

REGION THIS EVE AS REMNANTS OF GUSTAV CONTINUE SLOWLY NEWD.  CURRENT

PRESSURE CHANGE AND VWP DATA SUGGEST JUXTAPOSITION OF STRONGEST LOW

LVL DIRECTIONAL SHEAR AND LOW LV MOISTURE/INSTABILITY AXIS WILL

DRIFT N ACROSS ERN LA AND SW/W CNTRL MS THIS EVE...AND MAY REACH

NW/N CNTRL MS LATER TONIGHT.  A LIMITED THREAT WILL ALSO PERSIST IN

AREA OF WEAKER SHEAR BUT GREATER INSTABILITY S TO THE LFT/BTR/NEW

AREA.



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

400. MEAN STORM MOTION VECTOR 20035.





...CORFIDI

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