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014 

WWUS20 KWNS 081706

SEL3

SPC WW 081706

MDZ000-NYZ000-OHZ000-PAZ000-WVZ000-LEZ000-LOZ000-090000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 403

NWS STORM PREDICTION CENTER NORMAN OK

105 PM EDT TUE JUL 8 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  PANHANDLE OF MARYLAND

  CENTRAL AND WESTERN NEW YORK

  EASTERN OHIO

  PENNSYLVANIA

  NORTHERN WEST VIRGINIA INCLUDING PANHANDLES

  LAKE ERIE

  LAKE ONTARIO



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 105 PM UNTIL

  800 PM EDT.



* PRIMARY THREATS INCLUDE...

  WIDESPREAD DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 140

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

SOUTHWEST OF ELKINS WEST VIRGINIA TO 45 MILES NORTHWEST OF

SYRACUSE NEW YORK.  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...DAMAGING-WIND THREAT IS EXPECTED TO RAMP UP

CONSIDERABLY DURING NEXT SEVERAL HOURS.  EXPECT QLCS NOW DEVELOPING

OVER OH TO ORGANIZE...EXPAND...AND SWEEP EWD TO ENEWD ACROSS THIS

REGION INTO FAVORABLY DESTABILIZING AIR MASS...WITH CONCURRENT

STRENGTHENING OF DEEP-LAYER FLOW AND SHEAR IN WARM SECTOR.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 26040.





...EDWARDS

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