WW 673 SEVERE TSTM DC MD NJ NY PA VA WV CW 071705Z – 080100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 673 NWS Storm Prediction Center Norman OK 105 PM EDT Thu Sep 7 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia central Maryland northwestern New Jersey central and eastern New York central and eastern Pennsylvania northern Virginia eastern West Virginia Coastal Waters * Effective this Thursday afternoon and evening from 105 PM until 900 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...Thunderstorms developing east of the Allegheny and Blue Ridge Mountains will gradually develop north-northeastward during the next couple of hours, before eventually growing into one or two larger storm clusters. Thereafter, increasing risk for potentially damaging wind gusts is possible on expanding thunderstorm outflows spreading northeastward and eastward into early evening. The severe thunderstorm watch area is approximately along and 70 statute miles east and west of a line from 40 miles southeast of Hagerstown MD to 40 miles west northwest of Glens Falls NY. 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 500. Mean storm motion vector 24035. ...Kerr
