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000 

WWUS20 KWNS 040041

SEL1

SPC WW 040041

INZ000-KYZ000-OHZ000-040700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 441

NWS STORM PREDICTION CENTER NORMAN OK

840 PM EDT TUE JUN 3 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN INDIANA

       FAR NORTH CENTRAL KENTUCKY

       SOUTHERN OHIO



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 840 PM

UNTIL 300 AM EDT.



TORNADOES...HAIL TO 2 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 45 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF

LAFAYETTE INDIANA TO 40 MILES EAST SOUTHEAST OF ATHENS OHIO.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



OTHER WATCH INFORMATION...CONTINUE...WW 435...WW 437...WW

438...WW 439...WW 440...



DISCUSSION...TSTMS HAVE BEEN INCREASING ALONG/N OF AN OUTFLOW

BOUNDARY ACROSS CNTRL IND AND SRN OH EARLY THIS EVENING WHERE

PERSISTENT LOW-LEVEL WARM ADVECTION WAS MAXIMIZED.  AIR MASS IS

EXPECTED TO GRADUALLY RECOVER THROUGH THE EVENING AND GIVEN MLCAPES

OF AROUND 2000 J/KG AND EFFECTIVE VERTICAL SHEAR IN EXCESS OF 60

KTS...SUPERCELL STORMS CAN BE EXPECTED.  ADDITIONALLY...GIVEN

PRESENCE OF THE OUTFLOW BOUNDARY AND MOIST LOW-LEVEL PROFILES...A

COUPLE OF TORNADOES CANNOT BE RULED OUT.  OTHERWISE...LARGE HAIL AND

DMGG WINDS CAN BE EXPECTED.



AVIATION...TORNADOES AND 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

500. MEAN STORM MOTION VECTOR 27030.





...RACY/THOMPSON

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