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WWUS20 KWNS 041748

SEL8

SPC WW 041748

DCZ000-MDZ000-VAZ000-WVZ000-CWZ000-050000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 148

NWS Storm Prediction Center Norman OK

150 PM EDT Tue May 4 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Maryland

  Virginia

  Eastern West Virginia

  Coastal Waters



* Effective this Tuesday afternoon and evening from 150 PM until

  800 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Multiple multicell clusters are expected to develop

east-northeast from the Blue Ridge and pose a risk for scattered

damaging winds and isolated large hail.



The severe thunderstorm watch area is approximately along and 70

statute miles east and west of a line from 50 miles south southeast

of Roanoke VA to 35 miles north northwest 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 142...WW 144...WW

145...WW 146...WW 147...



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

1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

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

24030.



...Grams

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