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WWUS20 KWNS 031845

SEL4

SPC WW 031845

DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-WVZ000-CWZ000-040100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 234

NWS Storm Prediction Center Norman OK

245 PM EDT Thu Jun 3 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Delaware

  Maryland

  New Jersey

  Southeast and Eastern Pennsylvania

  Northern and Eastern Virginia

  Far Eastern West Virginia

  Coastal Waters



* Effective this Thursday afternoon and evening from 245 PM until

  900 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 65 mph likely

  A tornado or two possible



SUMMARY...Strong to severe thunderstorms are expected to develop

this afternoon initially across southeast Pennsylvania into

Maryland/Virginia Blue Ridge vicinity. A relatively moist/unstable

environment along with moderately strong southwesterly deep-layer

winds will support sustained multicells and potentially some

supercells. Thunderstorm-related wind damage is the most probable

risk, but some hail and a low tornado risk will exist as well.



The severe thunderstorm watch area is approximately along and 70

statute miles east and west of a line from 35 miles northeast of

Allentown PA to 45 miles east southeast of Charlottesville VA. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU4).



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 inch. Extreme turbulence and surface wind gusts to 55 knots. A few

cumulonimbi with maximum tops to 500. Mean storm motion vector

24025.



...Guyer

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