Todd Heitkamp, a National Weather Service meteorologist, said the line of storms appeared to coalesce into a derecho around.

The last time a derecho hit eastern South Dakota, the sky above Sioux Falls turned green, prompting Reddit users to create ...

A dangerous derecho is expected to form in parts of the Northern Plains and Upper Midwest on Monday, with wind gusts over 75 ...

Parts of Lincoln County were not as lucky as Sioux Falls, including what the Lincoln County Sheriff's Office called ...

The severe thunderstorms that passed through eastern South Dakota on July 28 brought powerful winds to the region.

Severe storms overnight in Iowa caused fallen trees and downed power lines. See storm damage reports from across the state.

Monday’s storm system produced two tornadoes in Gregory County and a third near Alvord, Iowa, in Lyon County, the National ...

To be called a derecho, the thunderstorm-generated high winds and wind damage should cover a distance of at least 250 miles ...

A group of inmates from the South Dakota Department of Corrections system is helping with the storm clean-up in Hudson.

A fierce and long-lasting line of severe thunderstorms called a derecho is likely to tear across the Northern Plains on ...