While two derechos in less than two months is extremely unusual for South Dakota, experts say it's just that — a fluke.

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

The last time a derecho hit eastern South Dakota, the sky above Sioux Falls turned green, prompting Reddit users to create ...

Thousands were without power and damage was seen across the Siouxland area after storms moved into the area on Monday, July ...

A dangerous derecho is expected to form in parts of the Northern Plains and Upper Midwest on Monday, with wind gusts over 75 ...

Severe thunderstorms are expected to hit eastern South Dakota in the late afternoon July 28, potentially bringing hurricane-force winds to the region.

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

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

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

A fierce and long-lasting line of severe thunderstorms called a derecho is likely to tear across the Northern Plains on ...

The severe thunderstorms that passed through eastern South Dakota on July 28 brought powerful winds to the region.

A powerful line of storms moved through the Upper Midwest Monday night into Tuesday. The Storm Prediction Center will make ...