Squall lines often pass quickly and are less prone to produce tornadoes, according to the National Severe Storm Laboratory. Shelf clouds are usually confused with wall clouds. Wall clouds develop ...

Roll clouds can develop along thunderstorms’ leading edge ... and visually seeing a cloud rolling can lead many to believe ...

Tornadoes are a violently rotating column of air that comes from the base of a severe thunderstorm. The base cloud where the tornado starts to come down is called a wall cloud. If that rotating ...

The storm will have a flat updraft base and potentially a wall cloud underneath the updraft. The precipitation (rain and hail) will fall adjacent to the updraft, usually underneath the forward ...

A severe thunderstorm plowed through the central Minnesota Thursday afternoon, spurring tornado warnings and causing some property damage. Meeker County Sheriff Mike Hirman reported minimal damage ...