cumulonimbus
genus of clouds, dense towering vertical cloud associated with thunderstorms and atmospheric instability
cumulonimbus incus
cumulonimbus with an incus (anvil) cloud as a supplementary feature
cumulonimbus capillatus
cloud species
cumulonimbus flumen
cloud species
cumulonimbus calvus
cloud species
hot tower
tropical cumulonimbus cloud that reaches out of the lowest layer of the atmosphere, the troposphere, and into the stratosphere
wall cloud
cloud formation