What is Wall cloud?
[[Image:Wall cloud with lightning - NOAA.jpg|thumb|upright|Wall clouds with lightning and rain]] '''Wall clouds''' (or '''pedestal clouds''') are [[localized]], large and persistent lowering [[cloud]] formations that develop below the rain-free region of [[thunderstorm]]s. [[Rotation|Rotating]] wall clouds are indicative of [[Mesocyclone|mesocyclones]] in [[thunderstorm]]s. Wall clouds do not always rotate, though.<ref>{{Cite web|title=Higgins Storm Chasing {{!}} What are Wall Clouds?|url=https://higginsstormchasing.com/what-are-wall-clouds/|access-date=2022-03-27|language=en-US|archive-date=2021-11-27|archive-url=https://web.archive.org/web/20211127232234/https://higginsstormchasing.com/what-are-wall-clouds/|url-status=dead}}</ref> Wall clouds are formed by a process known as [[entrainment]], when an inflow of warm, moist air rises and overpowers rain-cooled air during a downwind [[downdraft]]. == References == {{reflist}} [[Category:Severe weather]] [[Category:Clouds]] {{weather-stub}}