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WWUS20 KWNS 150130

SEL0

SPC WW 150130

KYZ000-OHZ000-150600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 320

NWS STORM PREDICTION CENTER NORMAN OK

930 PM EDT MON JUN 14 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF NORTHERN KENTUCKY

       PARTS OF SOUTHERN OHIO



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 930 PM UNTIL

200 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 35 MILES WEST

NORTHWEST OF COLUMBUS OHIO TO 55 MILES SOUTHEAST OF CINCINNATI

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 317...WW 318...



DISCUSSION...LINE OF SEVERE THUNDERSTORMS IND HAS DEVELOPED A LARGE

COLD POOL WHICH WILL MAINTAIN THE THREAT OF WIND DAMAGE ALONG THE

LEADING EDGE MOVING EWD INTO A MOIST AND UNSTABLE AIR MASS AS NOTED

ON ILN 00Z SOUNDING.  EVENTUALLY THE LINE EXPECTED TO WEAKEN TO

BELOW SEVERE WITH THE CESSATION OF DAYTIME HEATING...HOWEVER GIVEN

THE FAVORABLE WARM SECTOR THIS COULD STILL BE SEVERAL HOURS AWAY.



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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