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542 

WWUS20 KWNS 172049

SEL8

SPC WW 172049

DCZ000-DEZ000-MDZ000-NJZ000-VAZ000-CWZ000-180400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 518

NWS Storm Prediction Center Norman OK

450 PM EDT Wed Jul 17 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Delaware

  Eastern Maryland

  Southern New Jersey

  Northeast Virginia

  Coastal Waters



* Effective this Wednesday afternoon from 450 PM until Midnight

  EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...Clusters of storms will continue east-northeastward late

this afternoon and evening across the region, with a hot/moist

environment being conducive to storms capable of wind damage.



The severe thunderstorm watch area is approximately along and 40

statute miles north and south of a line from 20 miles west northwest

of Washington DC to 35 miles east of Dover DE. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 515...WW 516...WW 517...



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

25030.



...Guyer

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