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Cumulonimbus (from Latin cumulus 'swell' and nimbus 'cloud') is a dense, towering, vertical cloud, [1] typically forming from water vapor condensing in the lower troposphere that builds upward carried by powerful buoyant air currents.
Indicates that the air below the cloud is dry; can also signify the downdraft region of a storm. Wall clouds A supercell forms and a wall cloud pushes north of Beardstown, Ill. Friday, March 31 ...
A cumulonimbus incus is a mature thunderstorm cloud generating many dangerous elements. Lightning : this storm cloud is capable of producing bursts of cloud-to-ground lightning. Hail : hailstones may fall from this cloud if it is a highly unstable environment (which favours a more vigorous storm updraft ).
Cumulonimbus mamma (WMO genus and supplementary feature) – Cb with pouch-like protrusions that hang from under anvil or cloud base. Cumulonimbus pannus (WMO genus and accessory cloud) – shredded sections attached to main Cb cloud. Cumulonimbus pileus (WMO genus and accessory cloud) – capped, hood-shaped cloud above a cumulonimbus cloud.
A cumulonimbus capillatus is a cumulonimbus cloud with dense cirrus clouds above it, making the cloud top appear to contain hair-like structures. The name comes from the Latin word capillatus, meaning "with hair". [1] It is an intermediate stage between cumulonimbus calvus and cumulonimbus incus.
A series of tornadoes hit Nebraska and Iowa on Friday, leveling homes and wreaking havoc in the Midwest. Elkhorn, a neighborhood of Omaha, was most severely impacted, with hundreds of homes ...
Landspouts are a type of tornado that forms during the growth stage of a cumulus congestus or occasionally a cumulonimbus cloud when an updraft stretches boundary layer vorticity upward into a vertical axis and tightens it into a strong vortex.
A flanking line often has a stairstep appearance where the tallest cells are connected to the main cumulonimbus. [1] The bases of the clouds making the flanking line are merged. The forefront area usually has no precipitation. In the picture, it is possible to detect precipitation in the background just above the horizon below the main cloud.