Multiple regions of the country faced the possibility of severe weather on Thursday, according to forecasters.

Severe thunderstorms could bring large hail, tornadoes, high winds and lighting to swaths of the Eastern Plains, according to the National Weather Service.

A flash flood warning was released by the National Weather Service on Friday at 11:31 p.m. in effect until Saturday at 2:30 a.m. for Lawrence County.

The National Weather Service issued a weather alert at 6 p.m. on Friday for strong thunderstorms until 7 p.m. for Russell and Barbour counties.

A report was issued from the NWS Raleigh NC on Friday at 4:02 p.m. for strong thunderstorms until 4:45 p.m. for Cumberland and Sampson counties.

Huge crowds are anticipated Saturday in D.C. for events marking the U.S. Army’s 250th anniversary — but the weather may not fully cooperate. A sluggish front drifting southward could spark showers and thunderstorms that threaten to disrupt the celebrations.

The Baltimore region may see the start of rainy weather Friday, which will likely follow through next week, according to a forecast from the National Weather Service.

Thunderstorms are likely across parts of Kent and Sussex from Friday evening, the Met Office has warned. An amber warning spanning parts of East Sussex and Kent has been issued until the early hours of Saturday, with a yellow warning in place across West Sussex.