Cirrocumulus undulatus

Cirrocumulus undulatus is a variety of cirrocumulus cloud. The name cirrocumulus undulatus is derived from Latin, meaning "diversified as with waves".^[1] They have a rippled appearance due to wind shear and usually cover only a small portion of the sky. They appear in bands as small patches or layers. Occasionally, they comprise two or more wave forms superposed upon one another.^[2] The individual cloudlets can either be circular or elongated in the direction of the rows.^[3]

Cirrocumulus undulatus cloud forming a halo around the moon

Cirrocumulus undulatus cloud
Cirrocumulus undulatus clouds
Abbreviation	Cc un
Symbol
Genus	Cirrus (curl) -cumulus (heaped)
Variety	undulatus (undulated)
Altitude	Above 6,000 m (Above 20,000 ft)
Appearance	wavy heaps of cloudlets
Precipitation	Virga only

See also

• List of cloud types