Cumulonimbus incus

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Cumulonimbus incus
A Classic Anvil Cloud Over Europe.jpg
A cumulonimbus incus cloud, showing the characteristic anvil-top shape the cloud type displays
AbbreviationCb inc.
SymbolClouds CL 9.svg
GenusCumulonimbus (heap, cloud/severe rain)
SpeciesCapillatus (Having hair)
VarietyNone
AltitudeGround to 23,000 m
(75,000 ft)
ClassificationFamily C (Low-level)
AppearanceLarge flat-top cloud
Precipitation cloud?Very common Rain, Snow, Snow pellets or Hail, heavy at times

A cumulonimbus incus (Latin incus, "anvil") also known as an anvil cloud is a cumulonimbus cloud which has reached the level of stratospheric stability and has formed the characteristic flat, anvil-top shape.[1] It signifies the thunderstorm in its mature stage, succeeding the cumulonimbus calvus stage.[2] Cumulonimbus incus is a sub-form of Cumulonimbus capillatus.

Hazards[]

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's a highly unstable environment (which favours a more vigorous storm updraft).
  • Heavy rain: this cloud may drop several inches (millimetres) of rain in a short amount of time. This can cause flash flooding.
  • Strong wind: gale-force winds from a downburst may occur under this cloud.
  • Tornadoes: in severe cases (most commonly with supercells), it can produce tornadoes.

Classification[]

Cumulonimbus clouds can be powerful. If the correct atmospheric conditions are met, they can grow into a supercell storm. This cloud may be a single-cell thunderstorm or one cell in a multicellular thunderstorm. They are capable of producing severe storm conditions for a short amount of time.

In popular culture[]

  • It is a key plot point in the anime Tenki no Ko (Weathering With You).

References[]

  1. ^ "Incus".
  2. ^ "Cumulonimbus Incus - EPOD - a service of USRA".
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