Racing toward him is Bruce Springsteen in a convertible — and the deep darkness of a massive thunderstorm. The towering cumulonimbus cloud darkens the sky to a piercing black. A cloud of dust ...

falling from a cumulonimbus cloud. Heat Wave: A period of abnormally and uncomfortably hot and unusually humid weather. Typically a heat wave lasts two or more days. Squall Line: A line of active ...

A frozen form of precipitation consisting of individual balls or lumps of ice called hail stones, produced from cumulonimbus or thunderstorm clouds. A bigger hail stone signifies a longer lifespan ...

On Sunday afternoon, social media users reported the appearance of a "funnel cloud" in Camagüey province during a fierce ...

While the United States experiences tens of thousands of thunderstorms each year, they come in different types. Here's what to know about four of them, from a supercell to the multi-cell.