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590 

WWUS20 KWNS 261859

SEL3

SPC WW 261859

DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-CWZ000-270200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 373

NWS STORM PREDICTION CENTER NORMAN OK

255 PM EDT WED JUN 26 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  DISTRICT OF COLUMBIA

  DELAWARE

  CENTRAL AND EASTERN MARYLAND

  SOUTHERN NEW JERSEY

  SOUTHEASTERN PENNSYLVANIA

  CENTRAL AND EASTERN VIRGINIA

  COASTAL WATERS



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM

  UNTIL 1000 PM EDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95

STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES NORTH OF

ATLANTIC CITY NEW JERSEY TO 45 MILES WEST OF SOUTH HILL VIRGINIA.

 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 372...



DISCUSSION...SCATTERED STRONG/SEVERE STORM DEVELOPMENT IS NOW WELL

UNDERWAY ALONG THE BLUE RIDGE INTO THE VICINITY OF THE LEE SURFACE

TROUGH ACROSS THE MID ATLANTIC STATES.  GIVEN MODERATELY LARGE CAPE

ACTIVITY IS EXPECTED TO CONTINUE TO INCREASE IN COVERAGE AND DEVELOP

EASTWARD TOWARD COASTAL AREAS...AIDED BY FORCING ASSOCIATED WITH AN

IMPULSE PROGRESSING ACROSS THE CENTRAL APPALACHIANS.  UPSCALE GROWTH

INTO A LOOSELY ORGANIZED LARGER CLUSTER OF STORMS IS NOT OUT OF THE

QUESTION...PERHAPS ENHANCED...ACROSS PARTS OF MARYLAND AND THE

DELMARVA PENINSULA INTO NORTHERN MID ATLANTIC COASTAL AREAS...BY A

LINGERING BELT OF MODEST MID-LEVEL FLOW.



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 27030.





...KERR

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