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.

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.

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

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

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

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 ...

A powerful line of thunderstorms is expected to sweep across a large portion of the U.S. Midwest Monday, bringing strong ...

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