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WWUS20 KWNS 140700

SEL5

SPC WW 140700

ARZ000-LAZ000-MOZ000-MSZ000-TNZ000-141500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 905

NWS STORM PREDICTION CENTER NORMAN OK

155 AM CDT SUN SEP 14 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN ARKANSAS

       CENTRAL AND NORTHEASTERN LOUISIANA

       THE MISSOURI BOOTHEEL

       WESTERN MISSISSIPPI

       WESTERN TENNESSEE



EFFECTIVE THIS SUNDAY MORNING FROM 155 AM UNTIL 1000 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH SOUTHEAST OF

FORT POLK LOUISIANA TO 35 MILES NORTH NORTHWEST OF DYERSBURG

TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 904. WATCH NUMBER 904 WILL NOT BE IN EFFECT AFTER

155 AM CDT.



DISCUSSION...LEADING EDGE OF STRONGER ASCENT ASSOCIATED WITH

EJECTION OF T.D. IKE WILL IMPACT THE DELTA REGION OF AR/MS NWD INTO

THE MO BOOTHEEL AND WRN TN THROUGH DAWN.  ALTHOUGH BUOYANCY WILL

REMAIN LIMITED BY WARM MID LVL TEMPS...MAGNITUDE OF LOW LVL

SPEED/DIRECTIONAL SHEAR AND RECENT UPTURN IN STRENGTH OF SHOWERS IN

ERN AR SUGGEST POTENTIAL FOR ISOLD TORNADOES GIVEN MOIST

ENVIRONMENT.  FARTHER S INTO CNTRL LA...ISOLD TORNADOES AND/OR ISOLD

STORMS WITH LOCALLY DMGG WIND MAY OCCUR ALONG RESIDUAL AXIS OF LOW

LVL CONVERGENCE...WHERE SLIGHTLY GREAT BUOYANCY BUT WEAKENING SHEAR

WILL EXIST.



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

350. MEAN STORM MOTION VECTOR 19040.





...CORFIDI

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