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882 

WWUS20 KWNS 130035

SEL7

SPC WW 130035

INZ000-KYZ000-OHZ000-130500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 307

NWS STORM PREDICTION CENTER NORMAN OK

835 PM EDT SAT JUN 12 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST INDIANA

       PARTS  OF NORTHERN KENTUCKY

       MUCH OF WESTERN OHIO



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 835 PM

UNTIL 100 AM EDT.



HAIL TO 1 INCH 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 60

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH

NORTHEAST OF FINDLAY OHIO TO 40 MILES WEST SOUTHWEST OF

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

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 304...WW 305...WW 306...



DISCUSSION...WELL DEVELOPED COLD POOL WITH MCS OVER IND WILL

CONTINUE EWD INTO A VERY MOIST AND MDTLY UNSTABLE AIR MASS AS

SAMPLED BY THE 00Z ILM SOUNDING.  WIND DAMAGE WILL CONTINUE TO BE A

THREAT WITH THE LINE OF STORMS ON LEADING EDGE OF MCS FOR SEVERAL

MORE HOURS.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION

VECTOR 26035.





...HALES

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