Meteorologist Reed Timmer has circled Minnesota in advance of his storm chasing plans this week, and he says the active pattern could include tornado and derecho threats.

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

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

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

The most intense storms, with wind gusts potentially exceeding 75 m.p.h., were forecast for central and eastern South Dakota, ...

Before that, another derecho hit New England in July 1995, which caused damage across southern Vermont, southern New Hampshire, Massachusetts, Connecticut, and Rhode Island.

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

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

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

Thunderstorms that swept across eastern South Dakota during the afternoon and evening of July 28 likely combined to form a derecho. Todd Heitkamp, meteorologist-in-charge at the National Weather ...

The sound of heavy machinery continues to echo through towns like Sioux Center as it picks up the pieces from the derecho.

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