The Valley actually experienced a Derecho back on April 29 of this year. This was confirmed by the National Weather Service ...

It's not just heat impacting South Dakota this week. Sioux Falls is in line for some extreme weather tonight, July 28, with the chance of a wind gusts reaching 80 mph or greater or the system evolving ...

Prolonged wind events that unleash heavy rainfall and travel far distances sometimes qualify as derechos. Derechos can happen almost anywhere in the United States but are most common in the central ...

Strong storms that brought hurricane-force winds to an area stretching from the Upper Plains to the Midwest have been preliminarily classified by the National Weather Service as a derecho, defined as ...

It's a type of severe weather that doesn't come up often, but it can be just as threatening as a tornado. It's called a derecho. Derechos are clusters of violent storms spanning at least 240 miles.

“‘Derecho’ is an uncommon term used for an infrequent kind of storm system. A derecho, as defined by the Storm Prediction Center in Norman, Okla., is ‘a widespread and long-lived windstorm that is ...