Cirrus castellanus cloud

Cirrus castellanus or Cirrus castellatus^[1] is a species of cirrus cloud. Its name comes from the word castellanus, which means of a fort, of a castle in Latin.^[2] 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.^[3] This cloud species is usually dense in formation.^[4]

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

See also

• List of cloud types