The National Weather Service has issued a Severe Thunderstorm Warning for northwestern Lancaster County and southwestern Lebanon County until 8:30 p.m.

Millions of Americans are under weather advisories this week. See which major cities have heat, flood or storm advisories.

NASHVILLE, Tenn. (WZTV) — A Heat Advisory is in effect for much of Middle Tennessee for Tuesday. Henry, Benton & Decatur ...

The South in July is always hot and humid, but Tennesseans get an extra does of heat with an incoming heat dome. What to know ...

A tornado warning was issued by the National Weather Service in Duluth at 7:17 p.m. on Tuesday, July 15.

A tornado warning was issued by the National Weather Service in Duluth at 7:17 p.m. on Tuesday, July 15. This warning applies to Ashland, Price and Sawyer counties.

A severe thunderstorm on July 1 produced a tornado that tore through St. Mary’s County, causing tree and property damage, according to the National Weather Service.

With storms back in the forecast, it's important to clear up the difference between a tornado watch and a tornado warning.

The Warn-on-Forecast system could give more warning for severe weather to give people more time to get to safety.

After an afternoon filled with tornado sirens, lightning strikes, torrential rain and visible cloud rotation near Iowa Speedway, IndyCar canceled Friday afternoon practice.

Dark clouds and slow-moving thunderstorms rolled into the western part of the D.C. metro area, prompting a tornado warning and a barrage of severe thunderstorm warnings Wednesday afternoon.