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 National Weather Service has preliminarily classified overnight storms from the Upper Plains to the Midwest as a derecho.

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

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

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

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

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.

July was a trying weather month. Hot and humid days were good for corn and soybean growth, but hard on livestock and on wheat ...

A derecho can bring particularly violent thunderstorms to the Midwest. Here's what Iowans should know about storm risks on ...

One severe thunderstorm is capable of producing strong winds. But when they team up in summer, they can produce widespread ...

A derecho is a significant, potentially destructive weather event that is characterized as having widespread, long-lived, straight-line winds associated with a fast-moving group of severe ...