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 ...

ALVORD, Iowa (KTIV) - A line of thunderstorms with damaging winds moved through Northwest Iowa Monday, July 28. While most of ...

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

The extreme heat warning has been extended to 8 p.m., the NWS states. Update as of 11:46 p.m.: Parts of Sioux Falls, Brandon ...

Free tree and branch drop off sites are open in Sioux Falls following severe weather that swept through Sioux Falls Monday ...

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

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

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

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.

A 2020 derecho caused widespread damage across Massachusetts and southern New England. What to know about these destructive storms.