In some extreme cases, thunderstorms can spawn a derecho, a long-lived windstorm with gusts over 100 mph, strong enough to ...

Extreme weather will affect many regions of the country this week. Here are the places that will be hardest hit.

The forecast comes days after an expansive storm similarly trekked across the U.S. last week, unloading snow in the northern ...

Incoming heavy rain from an atmospheric river-fueled storm that slammed into the West Coast early Wednesday is threatening ...

A storm system that resulted in severe flooding in Southern California is headed to Texas and the Central US — why experts call it a "triple threat." ...

Another unusually intense March storm is coming this week, and it may cause a bit of déjà vu, with severe thunderstorms, ...

A powerful storm system threatens to unleash a cascade of severe weather across the United States this week, from heavy rain ...

When air is forced down and pushed forward by the front of a traveling storm cell, it transports dust and debris, according to the National Oceanic and Atmospheric Administration. Winds of speeds up ...

A powerful storm dropping drenching rain on flood-prone Southern California is raising concern among forecasters that it ...

A colossal storm could bring hurricane-force winds, major flooding, blizzard conditions and tornadoes to much of the U.S.