Supercells are basically thunderstorms on steroids. These storms create some of the most violent tornadoes and can leave a path of incredible destruction. A supercell is a powerful, long-lived ...

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A rare, monstrous EF5 tornado that struck the United States more than three months ago was the first of its kind in more than a decade, experts announced Monday. A tornado that roared through part of ...

In about 15 minutes, Tempe recorded nearly three-quarters of an inch of rain. A supercell thunderstorm forms when wind speed and direction change with height, a phenomenon called wind shear.

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph, the strongest classification of tornado and the first confirmed on ...

COLUMBUS, Ga. (WRBL) —For more than a decade, the U.S. had gone with out an EF-5 tornado, a drought in a category that sees the most intense wind speeds and damage. That streak has come to an end when ...

The nation's longest "drought" for the most extreme type of tornado has come to an end, scientists from the National Weather Service announced. The tornado that ended the 12-year gap actually hit back ...