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630 

WWUS20 KWNS 141826

SEL7

SPC WW 141826

INZ000-KYZ000-OHZ000-150100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 407

NWS STORM PREDICTION CENTER NORMAN OK

230 PM EDT SUN JUN 14 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST INDIANA

       LARGE PART OF CENTRAL AND EASTERN KENTUCKY

       PARTS OF SOUTHERN OHIO



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 900

PM 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 80

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTHWEST

OF LOUISVILLE KENTUCKY TO 80 MILES EAST SOUTHEAST 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 406...



DISCUSSION...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY IN

AREA OF MDT INSTABILITY AND SHEAR.  GIVEN THE MLCAPE AOA 1500 J/KG

AND 40-50KT OF DEEP LAYER SHEAR...SEVERE STORMS INCLUDING POSSIBLE

SUPERCELLS ARE LIKELY.  LARGE HAIL/DAMAGING WINDS ARE LIKELY WITH

STRONGEST STORMS PARTICULARLY ANY SUPERCELL THAT DEVELOPS.



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 500. MEAN STORM

MOTION VECTOR 26025.





...HALES

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