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WWUS20 KWNS 211818

SEL2

SPC WW 211818

DCZ000-MDZ000-PAZ000-VAZ000-WVZ000-CWZ000-220200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 302

NWS Storm Prediction Center Norman OK

220 PM EDT Mon Jun 21 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Western and Central Maryland

  Central Pennsylvania

  Northern Virginia

  Eastern Panhandle of West Virginia

  Coastal Waters



* Effective this Monday afternoon and evening from 220 PM until

  1000 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Isolated very large hail events to 2 inches in diameter possible



SUMMARY...Clusters of thunderstorms will move across the mountains

into the watch area this afternoon, with damaging winds and hail

possible in the strongest cells.



The severe thunderstorm watch area is approximately along and 85

statute miles east and west of a line from 65 miles east southeast

of Elkins WV to 25 miles northeast of Williamsport PA. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU2).



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 299...WW 300...WW 301...



AVIATION...A few severe thunderstorms with hail surface and aloft to

2 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

27030.



...Hart

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