The National Weather Service in Sioux Falls has confirmed a tornado in Lyon County, Iowa, that occurred during Monday's derecho event.

The second tornado of the evening, rated EF-1, spawned approximately one mile east of Alvord, Iowa, or 11 miles northeast of Inwood. The tornado was not witnessed by storm chasers or law enforcement, ...

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

A 2020 derecho caused widespread damage across Massachusetts and southern. What to know about these destructive storms.

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

Jeff Chapman, a meteorologist with the National Weather Service in Sioux Falls, said thunderstorms and strong winds between ...

The National Weather Service has preliminarily classified overnight storms from the Upper Plains to the Midwest as a derecho.

There were two confirmed tornadoes amid a flurry of warnings as storms moved through eastern South Dakota during the ...

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

A destructive derecho snapped trees and knocked out power to tens of thousands of people as it tore across portions of the ...

Thousands were without power and damage was seen across the Siouxland area after storms moved into the area on Monday, July ...

A moderate threat for severe storms is in place for parts of South Dakota and Minnesota on Monday afternoon into the evening due to the threat of a derecho.