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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 125

NWS STORM PREDICTION CENTER NORMAN OK

1005 PM EDT SUN APR 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL AND SOUTHEAST INDIANA

       EXTREME NORTHERN KENTUCKY

       SOUTHWEST OHIO



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1005 PM UNTIL

300 AM EDT.



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 35

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

NORTHWEST OF CINCINNATI OHIO TO 70 MILES EAST SOUTHEAST OF

CINCINNATI OHIO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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...THUNDERSTORMS WILL LIKELY PERSIST ALONG A SWD-MOVING

COLD FRONT AND SPREAD ESEWD FROM INDIANA INTO SW OH OVER THE NEXT

FEW HOURS.  A FEED OF MUCAPE NEAR 1000 J/KG AND EFFECTIVE BULK SHEAR

NEAR 40 KT WILL SUPPORT A RISK FOR SUPERCELLS WITH LARGE HAIL.

THOUGH THE CONVECTION WILL TEND TO BECOME MORE ELEVATED WITH

TIME...ISOLATED DAMAGING GUSTS WILL ALSO BE POSSIBLE.



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 450. MEAN STORM

MOTION VECTOR 30035.





...THOMPSON

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