Cumulonimbus calvus
Cumulonimbus calvus
Abbreviation	Cb calv.
Symbol
Genus	Cumulonimbus (heap, cloud/severe rain)
Species	Calvus (bald)
Classification	Family D (Vertically developed)
Appearance	tall clouds with puffy rounded tops
Precipitation Cloud?	Yes
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Cumulonimbus calvus is a moderately tall cumulonimbus cloud which is capable of precipitation, but has not yet reached the height where it forms into a cumulonimbus capillatus (firbous-top) or cumulonimbus incus (anvil-top). Clouds form when the Dewpoint of Water is reached in the presence of Condensation nuclei in the Troposphere. Clouds form when the Dewpoint of Water is reached in the presence of Condensation nuclei in the Troposphere. A cloud is a visible mass of droplets or frozen crystals floating in the atmosphere above the surface of the Earth or another Planetary body Clouds form when the Dewpoint of Water is reached in the presence of Condensation nuclei in the Troposphere. Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather. In Meteorology, precipitation (also known as one class of hydrometeors, which are atmospheric water phenomena is any product of the condensation of atmospheric Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather. A cumulonimbus incus (Latin incus, "anvil" is a Cumulonimbus cloud which has reached the level of stratospheric stability and has formed Cumulonimbus calvus develops from cumulus congestus, and its further development under auspicious conditions will result in cumulonimbus capillatus. Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather.

This cloud consists mainly of water droplets. By definition of cumulonimbus cloud, at its top water droplets are transformed into ice crystals, but for cumulonimbus calvus content of ice crystals is small and freezing is in early stage, so cloud top still looks round and puffy. Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather.

Cumulonimbus calvus is characterized by distinctive (between other types of cumulonimbus cloud) rounded shape and relatively sharp edges of its top area, unlike cumulonimbus incus or cumulonimbus capillatus, which have cirriform tops. Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather. A cumulonimbus incus (Latin incus, "anvil" is a Cumulonimbus cloud which has reached the level of stratospheric stability and has formed Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather. Developing cumulonimbus calvus loses sharp outlines of the top as more water droplets transform into ice crystals. Strong updrafts may form pileus or thin vertical stripes protruding upwards out of the cloud. A pileus ( Latin for cap) is a small horizontal Cloud that can appear above a cumulus or cumulonimbus cloud giving the parent cloud When upper part of the cloud freezes to greater extent and clearly visible cirriforms appears, cumulonimbus calvus turns into another species of cumulonimbus. Cumulonimbus (Cb is a type of Cloud that is tall dense and involved in Thunderstorms and other intense Weather.

Cumulonimbus calvus arcus is a sub-type of cumulonimbus calvus, which has arcus cloud ahead of cloud's front. An arcus cloud is a low horizontal Cloud formation associated with the leading edge of Thunderstorm outflow or occasionally with a Cold front even in

Cumulonimbus calvus with cloud-to-cloud lightning