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641 

WWUS20 KWNS 180018

SEL8

SPC WW 180018

KYZ000-WVZ000-180600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 568

NWS STORM PREDICTION CENTER NORMAN OK

720 PM EST SUN NOV 17 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN KENTUCKY

  WESTERN WEST VIRGINIA



* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 720 PM

  UNTIL 100 AM EST.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A FEW TORNADOES POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST

NORTHWEST OF HUNTINGTON WEST VIRGINIA TO 35 MILES SOUTH SOUTHEAST

OF LONDON KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 562...WW 563...WW

565...WW 566...WW 567...



DISCUSSION...BROKEN BANDS OF STORMS WILL SPREAD QUICKLY EWD THROUGH

EARLY TONIGHT AS AN INTENSE STORM SYSTEM CROSSES THE OH VALLEY.

THOUGH INSTABILITY BECOMES QUITE MARGINAL WITH EWD EXTENT...IT

SHOULD REMAIN SUFFICIENT FOR LOW-TOPPED CONVECTION WITH A RISK FOR

DAMAGING WINDS.  ALSO...AN ISOLATED TORNADO CANNOT BE RULED OUT

GIVEN THE VERY STRONG LOW-LEVEL SHEAR ACROSS THE REGION.



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

TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM

MOTION VECTOR 27045.





...THOMPSON

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