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000 

WWUS20 KWNS 061421

SEL3

SPC WW 061421

KSZ000-OKZ000-TXZ000-062300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 243

NWS STORM PREDICTION CENTER NORMAN OK

920 AM CDT SUN MAY 6 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST KANSAS

       MUCH OF WESTERN AND NORTHERN OKLAHOMA

       SMALL PART OF NORTHWEST TEXAS



EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 920 AM UNTIL 600

PM CDT.



TORNADOES...HAIL TO 2.5 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 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHWEST OF

CHANUTE KANSAS TO 50 MILES WEST SOUTHWEST OF WICHITA FALLS TEXAS.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU3).



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.



DISCUSSION...STRONG THUNDERSTORMS ACROSS SCENTRAL KS TO SWRN OK

CURRENTLY...WILL CONTINUE TO INTENSIFY AS THEY DEVELOP EWD INTO A

VERY UNSTABLE AND WEAKLY CAPPED AIRMASS.  WITH MLCAPES TO 3000 J/KG

AND 25-30KT OF LOW LEVEL SHEAR.,.POTENTIAL FOR TORNADIC SUPERCELLS

WILL INCREASE AS THE STORMS CONTINUE EWD...PARTICULARLY BY MID

AFTERNOON.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 24025.





...HALES

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