While two derechos in less than two months is extremely unusual for South Dakota, experts say it's just that — a fluke.

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

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.

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

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

Storm Chasers captured unreal footage of massive tornadoes ripping through northern South Dakota. One of the first tornadoes ...

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

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

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

It has now been confirmed that during the midst of Monday’s (7/28/2025) derecho in northwest Iowa — which is a line of severe ...

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