The National Weather Service has preliminarily classified overnight storms from the Upper Plains to the Midwest as a derecho. The term describes a long-lived line of storms with extreme winds.

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

Strong storms in an area stretching from the Upper Plains to the Midwest have been preliminarily classified by the National ...

Severe thunderstorms could continue into July 29, bringing havoc to morning commutes in Chicago, Milwaukee and Indianapolis.

As an intense wind storm is set to hit much of the U.S. on July 28, here are the safety steps you should take.

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

Sometimes referred to as an inland hurricane, derechos are among weather's most destructive phenomena. And there's one headed ...

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

Severe storms moved through the area Monday night into Tuesday morning. The storm system that moved from South Dakota through ...

Early models showed the possibility of a derecho forming in Minnesota between Sunday evening and Monday, but the system ended ...

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

The storm must have widespread severe reports (wind damage or 58 mph gusts) comprising the wind swath. Wind reports must be ...