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

The tornado that touched down in rural Codington County Sunday traveled nearly four miles, a new report from the National ...

Update as of 7 p.m.: A tornado warning is in effect for parts of Codington County, including Watertown, until 7:30 p.m., the ...

The National Weather Service has issued a flash flood warning for multiple areas across the Sioux Empire. The warning lasts ...

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

The thunderstorm risk level went from enhanced to moderate for the area, with timing now pushed back to between 5 p.m. and 1 ...

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

Sunday: A slight chance of showers, with thunderstorms also possible after 1 p.m. Partly sunny, with a high near 78. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation ...

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.

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