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567 

WWUS20 KWNS 241546

SEL5

SPC WW 241546

KYZ000-OHZ000-WVZ000-242200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 405

NWS STORM PREDICTION CENTER NORMAN OK

1145 AM EDT THU JUN 24 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN KENTUCKY

       SOUTHERN OHIO

       WEST VIRGINIA



EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1145 AM UNTIL

600 PM 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 NORTH AND SOUTH OF A LINE FROM 55 MILES EAST

SOUTHEAST OF PARKERSBURG WEST VIRGINIA TO 45 MILES WEST NORTHWEST

OF JACKSON KENTUCKY.  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.



OTHER WATCH INFORMATION...CONTINUE...WW 404...



DISCUSSION...SVR THREAT INCREASING ALONG/AHEAD OF COLD FRONT

CORRESPONDING TO RECENT INCREASE IN MULTICELLULAR/LINEAR

DEVELOPMENT...PER MESOSCALE DISCUSSION 1110.  POTENTIAL EXPECTED TO

BECOME BETTER ORGANIZED AS FOREGOING AIR MASS CONTINUES TO

DESTABILIZE BENEATH SRN RIM OF FAVORABLE DEEP-LAYER FLOW.



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 550. MEAN STORM MOTION

VECTOR 27040.





...EDWARDS/CORFIDI

