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WWUS20 KWNS 112316

SEL7

SPC WW 112316

KYZ000-OHZ000-WVZ000-120500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 127

NWS STORM PREDICTION CENTER NORMAN OK

715 PM EDT WED APR 11 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PART OF NORTHEAST KENTUCKY

       LARGE PART OF SOUTHERN AND CENTRAL OHIO

       PARTS OF WESTERN WEST VIRGINIA



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 715 PM

UNTIL 100 AM EDT.



HAIL TO 1.5 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 70

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHWEST OF

COLUMBUS OHIO TO 45 MILES SOUTH SOUTHWEST OF HUNTINGTON WEST

VIRGINIA.  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 124...WW 125...WW 126...



DISCUSSION...SQUALL LINE WITH BOWS HAS DEVELOPED ACROSS IND INTO NRN

KY AHEAD OF VIGOROUS UPPER TROUGH.  SUFFICIENT INSTABILITY  TO

SUPPORT AT LEAST A DAMAGING WIND THREAT AFTER DARK EVEN WITH

MARGINAL LOW LEVEL MOISTURE WITH THE STRONG MID LEVEL COLD ADVECTION

WITH TROUGH.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM

MOTION VECTOR 24040.





...HALES

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