A group of storm chasers captured this video of a surreal, monstrous-looking thunderstorm cloud that spun over eastern Wyoming on Sunday. The time-lapse video taken by Basehunters shows the of a rare ...

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 ...

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.

Dozens of men fought to hold up a wall as a hall collapsed on top of more than 100 wedding guests taking shelter during a violent storm.

Queensland residents start counting the cost of giant hailstones that fell on Saturday afternoon, damaging cars, homes and gardens.