WATCHES: Severe Thunderstorm Watch Number 349

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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