

682 

WWUS20 KWNS 161540

SEL2

SPC WW 161540

ARZ000-ILZ000-INZ000-KYZ000-MOZ000-TNZ000-162200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 432

NWS STORM PREDICTION CENTER NORMAN OK

1040 AM CDT TUE JUN 16 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF NORTHEAST ARKANSAS

       PARTS OF SOUTHERN ILLINOIS

       PARTS OF SOUTHERN INDIANA

       WESTERN KENTUCKY

       PARTS OF SOUTHEAST MISSOURI

       PARTS OF WESTERN AND MIDDLE TENNESSEE



EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 1040 AM UNTIL

500 PM 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 95

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF

EVANSVILLE INDIANA TO 35 MILES WEST SOUTHWEST OF JACKSON

TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



DISCUSSION...LINE OF THUNDERSTORMS ENTERING WRN PORTION OF WATCH

EXPECTED TO INCREASE IN INTENSITY AS AIR MASS DESTABILIZES IN

ADVANCE OF IT.  WITH A STRONG 50KT REAR INFLOW JET DAMAGING WINDS

EXPECTED TO BE PRIMARY THREAT AS LINE MOVES EWD ACROSS THE WATCH.



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 26035.





...HALES

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