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WWUS20 KWNS 051747

SEL9

SPC WW 051747

INZ000-KYZ000-060100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 349

NWS STORM PREDICTION CENTER NORMAN OK

150 PM EDT TUE JUN 5 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHWEST INDIANA

       MUCH OF KENTUCKY



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 150 PM UNTIL

900 PM EDT.



HAIL TO 1.5 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 65

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH

NORTHWEST OF EVANSVILLE INDIANA TO 20 MILES EAST SOUTHEAST OF

JACKSON KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 347...WW 348...



DISCUSSION...SCATTERED THUNDERSTORMS WILL CONTINUE TO

DEVELOP/INTENSIFY OVER SW INDIANA/KY THROUGH THE AFTERNOON ALONG A

WNW-ENE SURFACE BOUNDARY...AND IN ADVANCE OF A MID LEVEL TROUGH

APPROACHING FROM IA/IL.  THOUGH INSTABILITY WILL NOT BE PARTICULARLY

LARGE...IT SHOULD BE SUFFICIENT FOR SUPERCELLS GIVEN THE MODERATELY

STRONG DEEP LAYER SHEAR OVER THIS AREA.  LARGE HAIL AND DAMAGING

GUSTS SHOULD BE THE PRIMARY SEVERE THREATS THROUGH THE

AFTERNOON/EVENING.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM

MOTION VECTOR 30035.





...THOMPSON

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