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592 

WWUS20 KWNS 022235

SEL8

SPC WW 022235

KSZ000-MOZ000-030500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 248

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CDT WED JUN 2 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTH CENTRAL AND SOUTHEAST KANSAS

       SOUTHWEST AND CENTRAL MISSOURI



EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 535 PM UNTIL MIDNIGHT CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 90 MILES WEST OF

CHANUTE KANSAS TO 15 MILES EAST NORTHEAST OF FORT LEONARD WOOD

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 245...WW 246...WW 247...



DISCUSSION...THUNDERSTORM INITIATION IS UNDERWAY NEAR THE KS/MO

BORDER ALONG A DIFFUSE PRE-FRONTAL TROUGH.  A FEED OF STRONG

INSTABILITY FROM OK/AR INTO SE KS AND SW MO WILL PROMOTE ADDITIONAL

THUNDERSTORM DEVELOPMENT THROUGH THE EVENING...AS THE PRE-FRONTAL

TROUGH AND COLD FRONT A LITTLE TO ITS N BOTH MOVE SLOWLY SWD.

VERTICAL SHEAR IS NOT PARTICULARLY STRONG OVER THE AREA...THUS

MULTICELL CLUSTERS SHOULD BE THE PRIMARY CONVECTIVE MODE WITH AN

ASSOCIATED RISK FOR LARGE HAIL AND DAMAGING WINDS.  THERE WILL ALSO

BE THE POTENTIAL FOR STORMS TO MERGE AND GROW UPSCALE INTO AN MCS

LATER THIS EVENING ACROSS SW MO.



AVIATION...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 550. MEAN STORM

MOTION VECTOR 29020.





...THOMPSON

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