Here’s what you need to know about this uncommon form of extreme weather.

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.

As heat records continue to break in the U.S., this week has already brought the threat of derechos. That’s left many people ...

Find out what derechos are, how they form, where they occur in the US, their similarities to tornadoes, and vital safety tips to stay protected.

Forecasters are tracking a potential mesoscale convective system that could unleash damaging winds, hail and possible ...

A brutal heat wave that developed in July 1995 led to a powerful derecho that caused a significant swath of damage across Ontario. The initial slow-motion disaster focused on the Chicago metro area, ...