Todd Heitkamp, a National Weather Service meteorologist, said the line of storms appeared to coalesce into a derecho around.

The severe thunderstorms that passed through eastern South Dakota on July 28 brought powerful winds to the region.

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.

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

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

A stretch of big wind from a Monday night storm destroyed or severely damaged some farm buildings and crops in southeastern ...

Much of eastern South Dakota continues to be in a hazardous weather outlook on Tuesday, with a 40 percent chance of showers ...

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

While a tornado traveled through Gregory County Monday night, firefighters and county emergency management were busy responding to multiple grass fires. A long, ...