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WWUS20 KWNS 131720

SEL3

SPC WW 131720

INZ000-KYZ000-OHZ000-PAZ000-WVZ000-140000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 413

NWS STORM PREDICTION CENTER NORMAN OK

120 PM EDT SUN JUL 13 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEAST INDIANA

  NORTHCENTRAL KENTUCKY

  OHIO

  WESTERN PENNSYLVANIA

  NORTHERN WEST VIRGINIA



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 120 PM UNTIL

  800 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF

CINCINNATI OHIO TO 50 MILES EAST SOUTHEAST OF FRANKLIN

PENNSYLVANIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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.



&&



DISCUSSION...THUNDERSTORMS ARE EXPECTED TO GRADUALLY INCREASE IN

AREAL COVERAGE AND INTENSITY ALONG A PRE-FRONTAL CONFLUENCE ZONE

DRAPED ACROSS OH.  SUBSEQUENT MOVEMENT WILL ALLOW THIS ACTIVITY TO

SPREAD INTO WESTERN PA AND ADJACENT AREAS OF WEST VIRGINIA.

DAMAGING WINDS ARE THE GREATEST RISK.



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 500. MEAN STORM

MOTION VECTOR 27025.





...DARROW

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