A damaging thunderstorm struck northeastern West Virginia and more such thunderstorms will threaten other parts of the mid-Atlantic on this last day of the holiday weekend.
The first severe thunderstorm of the day erupted near the far western border of Maryland and West Virginia, causing damage in and around Kingwood, W. Va.
Additional powerful thunderstorms will continue to ignite from northern Virginia and neighboring West Virginia to central Pennsylvania through this afternoon.
The danger zone will shift to eastern Pennsylvania this evening.
Blinding downpours and damaging winds are the main concerns. A few thunderstorms will also produce hail, while an isolated tornado cannot be ruled out.
UPDATES: (All times are listed in EDT)
1:15 p.m. Sunday: A severe thunderstorm watch is now in effect from the panhandle of West Virginia and northern Virginia to central Pennsylvania until 8 p.m. Washington, D.C., and Baltimore are included in this watch box, but AccuWeather.com meteorologists feel the majority of the strongest thunderstorms will remain to the north and west of these cities.
12:45 p.m. Sunday: Multiple trees, electric poles and power lines were downed in and around Kingwood, W. Va., according to 911 Call Center.
12:36 p.m. Sunday: Thunderstorm capable of spawning a tornado was located near Kingwood, W. Va., and was heading northeastward toward Fayette Co., Pa.