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176 

WWUS20 KWNS 201855

SEL5

SPC WW 201855

DCZ000-MDZ000-VAZ000-WVZ000-CWZ000-210100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 605

NWS Storm Prediction Center Norman OK

300 PM EDT Tue Aug 20 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Maryland

  Northern Virginia

  The eastern West Virginia Panhandle

  Coastal Waters



* Effective this Tuesday afternoon and evening from 300 PM until

  900 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...Multicell clusters and pulse-type storms will gradually

spread/develop eastward and pose a threat for occasional downbursts

with damaging winds through the remainder of the afternoon into this

evening.



The severe thunderstorm watch area is approximately along and 45

statute miles north and south of a line from 30 miles north

northwest of Staunton VA to 25 miles east southeast of Baltimore MD.

For a complete depiction of the watch see the associated watch

outline update (WOUS64 KWNS WOU5).



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 602...WW 603...WW 604...



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

1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 550. Mean storm motion vector

27015.



...Thompson

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