Cloud Atlas ->
Cumulonimbus Cumulonimbus (Cb)
Description:
In the middle or lower cloud level developing thundercloud,
which mostly up-rises into the upper cloud level.
Origin:
The Cumulonimbus always indicates a
strong instability to the layering of air with appropriate convection or
turbulence.
Possible cloud
species, subspecies and special forms:
species |
name |
abbr. |
meaning |
Cumulonimbus calvus |
Cb cal |
Preponderant
smooth forms; the swellings at the summit lose
the sharp outlines. |
Cumulonimbus capillatus |
Cb cap |
Upper section
consists of a frayed, fibrous or streaky cloud
mass. |
special forms |
name |
abbr. |
meaning |
Cumulonimbus incus |
Cb inc |
With anvil-like
upper section. |
Cumulonimbus mamma |
Cb mam |
sac-like,
wart-like excrescences at the bottom side of the
cloud |
Cumulonimbus virga |
Cb vir |
with drop strips |
Cumulonimbus praecipitatio |
Cb pra |
With precipitation
(rain, hail, snow, ripe or ice pillet) in shower
form. |
Cumulonimbus arcus |
Cb arc |
With gust collar
at the bottom side of the clud. |
Cumulonimbus tuba |
Cb tub |
with funnel cloud
or tornado |
Cumulonimbus pileus |
Cb pil |
with cap |
Cumulonimbus velum |
Cb vel |
with veil |
Cumulonimbus pannus |
Cb pan |
with frazzles at
the bottom side of the cloud. |

photos of
Cumulonimbus:
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Cumulonimbus arcus |
Cumulonimbus mamma |
Cumulonimbus tuba |
Cumulonimbus arcus |
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Cumulonimbus pileus |
Cumulonimbus mamma |
Cumulonimbus tuba |
Cumulonimbus arcus |
other
Cumulonimbus clouds: [1][2][3][4][5][6][7][8][9][10][11][12][13][14]
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