The National Weather Service confirmed a tornado struck Butler County, PA, with footage showing a shed's roof being torn off.

Evidence of a convergent damage path was highlighted by the presence of two parallel trees taken down and flattened grass resulting from the storm's intense winds.

UNIONVILLE, Pa. — The National Weather Service confirmed that the tornado that touched down in Butler County was an EF-0. The ...

Even with a tornado tearing off the roof of a salt storage building about 75 yards away from the fire station Wednesday ...

The National Weather Service of Pittsburgh confirmed Thursday, May 22, that two tornadoes touched down in Butler County ...

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The U.S. is on track to have its second-busiest tornado year ever, and some former weather service veterans worry that overworked meteorologists and violent weather are a dangerous combination.

A tornado outbreak that swept through the Ohio Valley Friday night left multiple people dead and several seriously injured in ...

The threat of severe weather in Chicago delayed a Beyonce concert by about two hours on Thursday at Soldier Field.

At least four people died and others were hurt after severe storms including a possible tornado swept through St. Louis. The ...

Ohio Attorney General Dave Yost has suspended his campaign for Ohio governor. The 68-year-old Yost hinted at the challenge ...

Beyond tornados, severe thunderstorms are also possible and could bring damaging winds, hail, and flash flooding, according to NWS.