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

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

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

After heavy storms swept through Sioux Falls this week many residents are still cleaning up the damage, leaving several with ...

Meteorologist Reed Timmer has circled Minnesota in advance of his storm chasing plans this week, and he says the active ...

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

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 ...

Bolstered by the most July rainfall in years, corn and soybean farmers are optimistic about their crops this year. More than six inches of rain fell in and around New Ulm in July, according to a ...

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