WW 543 SEVERE TSTM DC MD PA VA WV CW 251540Z – 252300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 543 NWS Storm Prediction Center Norman OK 1140 AM EDT Sun Sep 25 2022 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Maryland South central Pennsylvania Northern Virginia The eastern West Virginia Panhandle Coastal Waters * Effective this Sunday morning and evening from 1140 AM until 700 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...Scattered thunderstorms will likely persist through the afternoon, with some additional storm development expected. The storm environment favors a mix of supercells and line segments with attendant threats of damaging winds and large hail. An isolated tornado or two may also occur. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 15 miles north northwest of Harrisburg PA to 40 miles east of Staunton VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 27045. ...Thompson
