Shelf clouds are usually confused with wall clouds. Wall clouds develop under supercells which consist of storms that are rotating. Wall clouds can be a precursor to tornadoes. "Wall clouds are ...

They are typically associated with shelf clouds ... is they need to be rotating in a vertical axis and rotating quite rapidly." Funnel clouds are also smoother than scud clouds.

The circling column of cloud, according to the Bureau of Meteorology, is known as a "shelf cloud". "It spreads out ahead of the thunderstorms," meteorologist Belinda House said. Shelf clouds ...

An ominous shelf cloud moved over North Texas on Monday, November 4, as flash flooding was reported in the region. This footage filmed by Chad Casey shows a storm looming over Copeville. The National ...