A colossal storm cloud swept through Sorocaba, São Paulo, on Wednesday, leaving locals stunned by its dramatic and foreboding appearance. Identified as a supercell with a mesocyclone, the cloud ...

Forming in the supercell 5km out of Kaimkillenbun, a tornado was also seen by residents, and storm chaser Justin Noonan captured stunning footage as the funnel formed and touched the ground.

The National Weather Service confirmed an EF-1 tornado impacted some northeastern parts of Hart County Thursday.

All thunderstorms have potential to create a tornado, but it's most commonly seen among supercell storms. Supercell storms can create strong tornadoes or multiple over a period of several hours.

rain-wrapped tornadoes can sometimes form with little warning when they're embedded in long squall lines of severe thunderstorms, even if no supercell thunderstorms develop. In some supercell ...