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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

Cirrus castellanus or Cirrus castellatus 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.

See also

• List of cloud types

References

1. "Appendix 3 - History of cloud nomenclature".
2. Numen - The Latin Lexicon. "Definition of castellanus". Retrieved 11 September 2011.
3. Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 57. ISBN 1-58574-857-9. Retrieved 11 September 2011.
4. Callanan, Martin. "Cirrus castellanus". International Cloud Atlas. nephology.eu. Archived from the original on 21 January 2016. Retrieved 11 September 2011.

External links

• International Cloud Atlas - Cirrus fibratus Archived 2016-01-21 at the Wayback Machine

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