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

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 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.

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

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

The highest gust confirmed so far was 99 mph in Iowa. A line of severe thunderstorms that swept across the Dakotas, southern ...

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 ...