

322 

WWUS20 KWNS 190138

SEL9

SPC WW 190138

MDZ000-PAZ000-VAZ000-WVZ000-190900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 329

NWS STORM PREDICTION CENTER NORMAN OK

940 PM EDT WED JUN 18 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHWESTERN MARYLAND AND THE MARYLAND PANHANDLE

  CENTRAL AND SOUTHERN PENNSYLVANIA

  EXTREME NORTHERN VIRGINIA

  NORTHERN WEST VIRGINIA AND THE EASTERN PANHANDLE OF WEST VIRGINIA



* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 940 PM

  UNTIL 500 AM 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 55

STATUTE MILES EITHER SIDE OF A LINE FROM PARKERSBURG WEST

VIRGINIA TO 45 MILES SOUTHEAST OF WILLIAMSPORT PENNSYLVANIA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 322...WW 323...WW

324...WW 326...WW 327...WW 328...



DISCUSSION...LINE OF STG-SVR TSTMS IS EXPECTED TO CONTINUE POSING

THREAT FOR OCNL DAMAGING GUSTS AS IT MOVES EWD ACROSS WW

AREA...PRIMARILY OVER PA AND MORE CONDITIONALLY FARTHER S ACROSS NRN

WV...MD AND EXTREME NRN VA.  REF SPC MESOSCALE DISCUSSION 1073 FOR

ADDITIONAL DETAILS.



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 24035.





...EDWARDS

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