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317 

WWUS20 KWNS 211703

SEL8

SPC WW 211703

DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-WVZ000-CWZ000-220100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 278

NWS STORM PREDICTION CENTER NORMAN OK

105 PM EDT TUE JUN 21 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  DISTRICT OF COLUMBIA

  DELAWARE

  MARYLAND

  SOUTHERN NEW JERSEY

  SOUTHEAST PENNSYLVANIA

  VIRGINIA

  FAR EASTERN WEST VIRGINIA

  COASTAL WATERS



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 105 PM UNTIL

  900 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...SEVERE THUNDERSTORMS WILL CONTINUE TO INCREASE IN COVERAGE

AND INTENSITY THROUGH THE AFTERNOON...INCLUDING THE POSSIBILITY OF

AN ORGANIZING SOUTHEASTWARD-MOVING LINEAR COMPLEX CAPABLE OF WIND

DAMAGE...WITH OTHER MORE ISOLATED STORMS/SUPERCELLS CAPABLE OF

SEVERE HAIL.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST

OF STAUNTON VIRGINIA TO 50 MILES SOUTH SOUTHEAST OF ATLANTIC CITY

NEW JERSEY.  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.



&&



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 31025.





...GUYER

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