

967 

WWUS20 KWNS 132013

SEL4

SPC WW 132013

MDZ000-NYZ000-PAZ000-WVZ000-140300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 414

NWS STORM PREDICTION CENTER NORMAN OK

405 PM EDT SUN JUL 13 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  MARYLAND PANHANDLE

  PARTS OF WESTERN AND SOUTHERN NEW YORK

  PENNSYLVANIA

  EASTERN WEST VIRGINIA PANHANDLE



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 405 PM UNTIL

  1100 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 EAST AND WEST OF A LINE FROM 35 MILES WEST OF

MARTINSBURG WEST VIRGINIA TO 20 MILES WEST NORTHWEST OF

BINGHAMTON NEW YORK.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 413...



DISCUSSION...NUMEROUS THUNDERSTORMS HAVE EVOLVED ALONG PRE-FRONTAL

CONFLUENCE ZONE OVER ERN OH/WRN PA/NRN WV.  THIS ACTIVITY IS

SPREADING EAST WITHIN MODESTLY SHEARED DEEP WLY FLOW ENVIRONMENT.

DAMAGING WINDS ARE THE PRIMARY THREAT...ALTHOUGH LARGE HAIL IS ALSO

POSSIBLE.



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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