

250 

WWUS20 KWNS 172003

SEL2

SPC WW 172003

DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-CWZ000-180300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 392

NWS Storm Prediction Center Norman OK

405 PM EDT Mon Jun 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

  Southeast Pennsylvania

  Eastern Virginia

  Coastal Waters



* Effective this Monday afternoon and evening from 405 PM until

  1100 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...At least isolated strong to severe thunderstorms are

expected to develop across the region late this afternoon within an

increasingly unstable environment, with the potential for the

strongest of these storms to produce severe hail/wind.



The severe thunderstorm watch area is approximately along and 70

statute miles north and south of a line from 20 miles southwest of

Washington DC to 40 miles south of Atlantic City NJ. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU2).



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 391...



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

27025.



...Guyer

