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975 

WWUS20 KWNS 281734

SEL4

SPC WW 281734

DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-WVZ000-CWZ000-290000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 464

NWS Storm Prediction Center Norman OK

135 PM EDT Fri Aug 28 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Delaware

  Maryland

  Southern New Jersey

  South-central and southeast Pennsylvania

  Northern Virginia

  Eastern West Virginia Panhandle

  Coastal Waters



* Effective this Friday afternoon and evening from 135 PM until

  800 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...Multiple clusters across south-central Pennsylvania should

spread east-southeast through at least early evening with a primary

risk of scattered damaging winds.



The severe thunderstorm watch area is approximately along and 85

statute miles either side of a line from 40 miles east northeast of

Harrisburg PA to 25 miles southwest of Baltimore MD. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 463...



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 450. Mean storm motion vector

29030.



...Grams

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