The classic, textbook supercell looks much like the figure above. The storm will have a flat updraft base and potentially a wall cloud underneath the updraft. The precipitation (rain and hail ...

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 ...

Often, with supercell or "tornadic" thunderstorms, there's rotation in the storm itself ... It often appears right before funnels begin to drop out of the cloud, Persoff said.

The Bureau of Meteorology believes a destructive storm that ... of a funnel cloud … a sort of triangular cloud formation which can form underneath particularly strong supercell thunderstorms ...

A supercell storm which is forecast to bring “giant-sized” hail and heavy rain is set to batter one Aussie state. After days of oppressive heat, Sydneysiders were hit with a barrage of rain ...