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

A dangerous derecho is expected to form in parts of the Northern Plains and Upper Midwest on Monday, with wind gusts over 75 ...

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

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

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

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

The National Weather Service Sioux Falls forecast shows that the city will be seeing temperatures as high as 70 next week, a record high in February.

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

SIOUX FALLS, S.D. (KELO) — Severe weather awareness week is approaching and the state of South Dakota will have fewer employees at the National Weather Service, an official said at a Wednesday ...

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

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 ...

Reed Timmer followed this storm throughout the state of South Dakota. He saw strong winds, tornadoes, large hail, and even a ...