Cirrostratus fibratus

Cirrostratus fibratus
Cirrostratus fibratus undulatus with faint sun halo
Abbreviation	Cs fib
Symbol
Genus	Cirrus- (curl) -stratus (layered)
Species	fibratus (fibered)
Altitude	Above 6,000 m (Above 20,000 ft)
Classification	Family A (High-level)
Appearance	fibrous veils^[1]
Precipitation	No

Cirrostratus fibratus or also called Cirrostratus filosus ^[2] is a type of cirrostratus cloud. The name cirrostratus fibratus is derived from Latin, meaning "fibrous".^[3] Cirrostratus fibratus is one of the two most common forms that cirrostratus often takes, with the other being cirrostratus nebulosus.^[4] They are formed from strong, continuous winds blowing at high altitudes, and they often cover a large portion of the sky.^[5] Cirrostratus fibratus may often develop from either cirrus fibratus or cirrus spissatus cloud.^[6] Precipitation is often imminent behind these clouds; however, they are not a precipitation-producing cloud.^[7]

References

^ Wolken Online. "Cirrostratus". Cloud Atlas. Archived from the original on 27 February 2021. Retrieved 15 September 2011.
^ "Appendix 3 - History of cloud nomenclature".
^ Numen - The Latin Lexicon. "Definition of fibratus, fibratus". Retrieved 15 September 2011.
^ Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 62. ISBN 1-58574-857-9. Retrieved 15 September 2011.
^ Rodgers, Alan; Streluk, Angella (2007). Cloud cover (Rev. and updated. ed.). Chicago, Ill.: Heinemann Library. p. 25. ISBN 978-1-4329-0077-9.
^ Callanan, Martin. "Cirrostratus fibratus". International Cloud Atlas. nephology.eu. Archived from the original on 25 February 2020. Retrieved 15 September 2011.
^ Institute of Atmospheric Sciences at the South Dakota School of Mines and Technology. "Cirrostratus (fibratus)". A Guide to the Sky. Archived from the original on 27 March 2012. Retrieved 15 September 2011.

External links

International Cloud Atlas – Cirrostratus fibratus Archived 2020-02-25 at the Wayback Machine

Cloud genera and selected species, supplementary features, and other airborne hydrometeors - WMO Latin terminology except where indicated

Mesospheric

Extreme-level
80–85 km

Noctilucent (NLC) Polar mesospheric clouds	Noctilucent type I veils Noctilucent type II bands Noctilucent type III billows Noctilucent type IV whirls

Stratospheric

Very high-level
15–30 km

Nacreous polar stratospheric clouds (PSC)	Cirriform nacreous Lenticular nacreous
Nitric acid and water polar stratospheric clouds (PSC)	No differentiated sub-types; tends to resemble cirrostratus

Tropospheric

High-level
3–18 km

Cirrus (Ci)

Species	Cirrus castellanus (Ci cas) Cirrus fibratus (Ci fib) Cirrus floccus (Ci flo) Cirrus spissatus (Ci spa) Cirrus uncinus (Ci unc)
Ci-only varieties	Cirrus intortus (Ci in) Cirrus vertebratus (Ci ve)

Cirrocumulus (Cc)

Species	Cirrocumulus castellanus (Cc cas) Cirrocumulus floccus (Cc flo) Cirrocumulus lenticularis (Cc len) Cirrocumulus stratiformis (Cc str)

Cirrostratus (Cs)

Species	Cirrostratus fibratus (Cs fib) Cirrostratus nebulosus (Cs neb)

High-level-only
mutatus cloud

Mutatus non-height specific (see below)

Medium-level
2–8 km

Altocumulus (Ac)

Species	Altocumulus castellanus (Ac cas) Altocumulus floccus (Ac flo) Altocumulus lenticularis (Ac len) Altocumulus stratiformis (Ac str) Altocumulus volutus (Ac vol)

Altostratus (As)

Altostratus undulatus

Nimbostratus (Ns)
Multi-level

Varieties	Nimbostratus virga (Ns vir)

Low-level
0–2 km

Cumulonimbus (Cb)
Towering vertical

Species	Cumulonimbus calvus (Cb cal) Cumulonimbus capillatus (Cb cap)
Cb-only supplementary features	Cumulonimbus cauda ((cau) Tail cloud) Cumulonimbus incus (inc) Cumulonimbus murus ((mur) Wall cloud)
Cb-only accessories and other	Cumulonimbus flumen ((Cb flu) Beaver tail) Overshooting top Hot tower

Cumulus (Cu)
Variable vertical extent

Species	Fractus Cumulus humilis (Cu hum) Cumulus mediocris (Cu med) (Cumulus congestus (Cu con) (Cumulus castellanus (unofficial alternative name for Cu con)) (ICAO term for Cu con and "Cu cas" is Towering cumulus [Tcu]))
Other	Horseshoe Trade wind cumulus

Stratus (St)

Species	Stratus fractus (St fra) Stratus nebulosus (St neb)
St-only genitus cloud and other	Stratus silvagenitus (St sil) Fog (Fg) Surface level

Stratocumulus (Sc)

Species	Stratocumulus castellanus (Sc cas) Stratocumulus floccus (Sc flo) Stratocumulus lenticularis (Sc len) Stratocumulus stratiformis (Sc str) Stratocumulus Undulatus Stratocumulus volutus (Sc vol)

Low-level-only
supplementary features

Arcus ((arc) Shelf)
Tuba ((tub) Funnel cloud)

Low-level-only
accessory cloud and other

Pileus (pil)
Velum (vel)
Pannus (pan)
Other- Actinoform cloud (Stratocumulus)

Non-height
specific

Varieties	Duplicatus (du) Lacunosus (la) Opacus (op) Perlucidus (pe) Radiatus (ra) Translucidus (tr) Undulatus (un)
Supplementary features	Asperitas (asp) Cavum (cav) Fluctus (flu) Mamma (mam) Praecipitatio (pra) Virga (vir)
Mother clouds and human-made clouds	(Mother cloud)+genitus (e.g. cumulogenitus (cugen) (Mother cloud)+mutatus (e.g. cumulomutatus (cumut) Homogenitus (hogen) Homomutatus (homut)