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967 

WWUS20 KWNS 141627

SEL8

SPC WW 141627

DCZ000-MDZ000-OHZ000-PAZ000-VAZ000-WVZ000-CWZ000-150100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 88

NWS Storm Prediction Center Norman OK

1230 PM EDT Mon May 14 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Western and central Maryland

  Southeast Ohio

  Southern Pennsylvania

  Northern Virginia

  Northern and central West Virginia

  Coastal Waters



* Effective this Monday afternoon and evening from 1230 PM until

  900 PM EDT.



* Primary threats include...

  Widespread damaging winds and isolated significant gusts to 75

    mph likely

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Strong to severe storms will quickly evolve into a squall

line that should progress east then southeast across the central

Appalachians towards Chesapeake Bay. Damaging winds will be the

primary hazard with a brief tornado or two possible.



The severe thunderstorm watch area is approximately along and 85

statute miles either side of a line from 40 miles northwest of

Parkersburg WV to 20 miles south southeast of Baltimore MD. 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

1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A

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

29040.



...Grams

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