Shelf cloud in Belleville, July 2024 - Tricia K While equally ominous, a wall cloud, sometimes also called a pedestal cloud, forms under the updraft of a shower or thunderstorm.

Meteorologist Claire Fry explains what a shelf cloud is and how it's different from a wall cloud.

What's that cloud? 10 common cloud types: According to NOAA, there are 10 basic cloud types, though there are other formations like a wall clouds, shelf clouds or even contrails created by planes.

A weakly rotating wall cloud was spotted in southeast Oklahoma City Tuesday afternoon, though storm trackers say it is unlikely to produce a tornado.