Cirrus castellanus

Cirrus castellanus
Abbreviation	Ci cas
Symbol
Genus	Cirrus (curl of hair)
Species	castellanus (castle-shaped)
Altitude	Above 6,000 m (Above 20,000 ft)
Appearance	A series of dense lumps, or "towers" of cirrus, connected by a thinner base.
Precipitation cloud?	No

Cirrus castellanus is a species of cirrus cloud. Its name comes from the word castellanus, which means of a fort, of a castle in Latin. Like all cirrus, this species occurs at high altitudes. It appears as separate turrets rising from a lower-level cloud base. Often these cloud turrets form in lines, and they can be taller than they are wide. This cloud species is usually dense in formation.

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