The NWS issued flash flood warnings for Washington and the cities of Arlington and Alexandria in neighboring Virginia till 2.45am on Tuesday (2.45pm, Singapore time).
Hail as giant as 11.5cm in diameter was recorded in Virginia, the NWS mentioned.
In Alabama, a 28-year-old man died after being struck by lightning in an industrial park car parking zone, a neighborhood ABC station reported.
And in South Carolina, a 15-year-old was killed when he was hit by a falling tree outdoors his grandparents’ home, based on a neighborhood CBS station.
By early Tuesday, almost 600,000 clients had been with out energy alongside the East Coast, from Pennsylvania to Georgia, based on monitoring web site PowerOutage.us.
Native media and authorities businesses in Maryland launched photos of downed energy traces strewn throughout streets, and bushes that fell into houses and throughout roads and rail traces.
Different southern states skilled comparable storm harm, with Georgia Energy releasing images of fallen bushes that pulled down energy traces attributable to excessive winds, hail and heavy rain.
“Our crews are working safely and as shortly as potential to get the lights again on,” the electrical utility mentioned on X, previously often known as Twitter.
Greater than 1,700 US flights had been cancelled on Monday and greater than 8,000 delayed because the extreme climate loomed, web site FlightAware mentioned.
In Washington, federal businesses despatched workers house early at 3pm on Monday (Tuesday, 4am, Singapore time) in anticipation of the climate.
The storms got here as giant components of the southern United States, together with Texas, Louisiana and Florida boiled underneath extreme warmth warnings, with temperatures as much as 42 levels Celsius predicted by Tuesday.
Scientists say local weather change has amplified the depth and frequency of utmost climate occasions world wide.