Cumulonimbus

Cumulonimbus incus

Cumulonimbus incus

Cumulonimbus capillatus incus

Abbreviation Cb inc.

Genus Cumulonimbus (heap, cloud/severe rain)

Species Incus (anvil)

Classification Family D (Vertically developed)

Appearance Large flat-top cloud

Precipitation Cloud? Yes, often intense

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A cumulonimbus incus (Latin incus, "anvil") is a cumulonimbus cloud which has reached the level of stratospheric stability and has formed the characteristic flat, anvil-top shape. It can cause a supercell and then a tornado.

A cumulonimbus incus is a sub-form of cumulonimbus capillatus.

Anvil Cumulonimbus incus, February 2007

Picture of fully developed Cumulonimbus incus over Canberra, Australia, January 2008.

External links

Picture of a fully developed Cb inc

v • d • e Cloud types

High-level	Cirrus (Ci) · Cirrus uncinus · Cirrus Kelvin-Helmholtz colombia · Cirrostratus (Cs) · Cirrocumulus (Cc) · Pileus · Contrail

Medium-level	Altostratus (As) · Altostratus undulatus · Altocumulus (Ac) · Altocumulus undulatus · Altocumulus mackerel sky · Altocumulus castellanus · Altocumulus lenticularis

Low-level	Fog · Stratus (St) · Nimbostratus (Ns) · Cumulus humilis (Cu) · Cumulus mediocris (Cu) · Stratocumulus (Sc) · Arcus · Fractus · Funnel · Roll · Shelf · Wall

Vertical	Cumulonimbus (Cb) · Cumulonimbus incus · Cumulonimbus calvus · Cumulonimbus mammatus · Cumulus congestus · Cumulus castellanus · Pyrocumulus · Pyrocumulonimbus · Overshooting top · Accessory

Other	Noctilucent · Nacreous

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