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WWUS20 KWNS 022047

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 609

NWS STORM PREDICTION CENTER NORMAN OK

345 PM CDT SUN SEP 2 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHWEST ALABAMA

       FAR EASTERN ARKANSAS

       NORTHERN MISSISSIPPI

       SOUTHWEST TENNESSEE



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 345 PM UNTIL

1100 PM CDT.



TORNADOES...HAIL TO 1 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 105 STATUTE

MILES EAST AND WEST OF A LINE FROM 70 MILES EAST NORTHEAST OF

MEMPHIS TENNESSEE TO 45 MILES WEST SOUTHWEST OF COLUMBUS

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 608...



DISCUSSION...TSTMS EXPECTED TO INCREASE IN COVERAGE/STRENGTH OVER

SRN W TN AND ERN AR/NRN MS OVER THE NEXT 2-3 HOURS...ALONG AND AHEAD

OF SE-MOVING W-E CONFLUENCE BAND ASSOCIATED WITH FORMER HRCN ISSAC.

LOW-MID LVL SPEED/DIRECTIONAL SHEAR AND WARM/MOIST LOW-LVL

ENVIRONMENT APPEAR FAVORABLE FOR SUSTAINED UPDRAFTS/SUPERCELLS WITH

A RISK FOR DMGG WIND AND POSSIBLY TORNADOES...ESPECIALLY WITH EWD

EXTENT IN WW. WITH TIME...STORMS SHOULD MERGE INTO A BKN W-E OR

WSW-ENE SQLN...WITH EMBEDDED BOWING SEGMENTS POSING A RISK FOR SVR

WIND AND ISOLD TORNADOES ESE TOWARD E CNTRL MS/CNTRL AL.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.

MEAN STORM MOTION VECTOR 29025.





...CORFIDI

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