The line of supercell thunderstorms that moved through northern Illinois and northwest Indiana Tuesday night brought nearly 70 mph wind gusts, golf ball- to baseball-sized hail, and an inch of rain.

A supercell thunderstorm, which brought almost hurricane-force straight-line winds, was responsible for a 300-mile swath of damage across northern Maryland and southern Pennsylvania on Saturday night, ...

Add Yahoo as a preferred source to see more of our stories on Google. The supercell, king of thunderstorms, disruptor of the Great Plains, is a dangerous weather threat wherever it forms. Tornadoes, ...

A supercell is a thunderstorm with a rotating updraft, which is classified as a mesocyclone. The rotating updraft is what sets a supercell apart from a typical thunderstorm. In order for a supercell ...

The supercell, king of thunderstorms, disruptor of the Great Plains, is a dangerous weather threat wherever it forms. Tornadoes, flooding, enormous hailstones, damaging winds and lightning are some of ...