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WWUS20 KWNS 242236

SEL7

SPC WW 242236

ARZ000-OKZ000-250600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 197

NWS STORM PREDICTION CENTER NORMAN OK

540 PM CDT SUN APR 24 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF WESTERN ARKANSAS

       PARTS OF EASTERN OKLAHOMA



EFFECTIVE THIS SUNDAY AFTERNOON AND MONDAY MORNING FROM 540 PM

UNTIL 100 AM CDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTHWEST OF DURANT

OKLAHOMA TO 40 MILES EAST OF FORT SMITH ARKANSAS.  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...CONTINUE...WW 192...WW 194...WW

195...WW 196...



DISCUSSION...SEVERE THUNDERSTORMS DEVELOPING EWD ACROSS THE WATCH

WITH NOW FAVORABLE VEERING SHEAR PROFILES IN PLACE FOR TORNADIC

SUPERCELLS. PRIMARY THREAT WILL OCCUR ALONG E/W OUTFLOW BOUNDARY

CURRENTLY FROM N OF MLC TO S OF FSM.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 26035.





...HALES

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