Cirrus fibratus

Type of cloud
Cirrus fibratus
AbbreviationCi fib
Symbol
GenusCirrus (curl)
Speciesfibratus (fibered)
AltitudeAbove 6,000 m
(Above 20,000 ft)
ClassificationFamily A (High-level)
Appearancefibers, threads[1]
PrecipitationNo

Cirrus fibratus or also called Cirrus filosus [2] is a species of cirrus cloud. The name cirrus fibratus is derived from Latin, meaning "fibrous".[3] These clouds are similar to cirrus uncinus, commonly known as "mares' tails"; however, fibratus clouds do not have tufts or hooks at the end.[4] The filaments are usually separate from one another.[5]

Like other cirrus clouds, cirrus fibratus occur at high altitudes. They can indicate an approaching warm front;[6] however, they can also be an indication that fair weather will follow.[7]

See also

References

  1. ^ Wolken Online. "Cirrus". Cloud Atlas. Archived from the original on 3 April 2019. Retrieved 13 July 2011.
  2. ^ "Appendix 3 - History of cloud nomenclature".
  3. ^ Numen - The Latin Lexicon. "Definition of fibratus, fibratus". Retrieved 13 July 2011.
  4. ^ Dunlop, Storm (2003). The weather identification handbook (1st Lyons Press ed.). Guilford, Conn.: Lyons Press. p. 56. ISBN 1-58574-857-9.
  5. ^ Callanan, Martin. "Cirrus fibratus". International Cloud Atlas. nephology.eu. Archived from the original on 24 February 2020. Retrieved 13 July 2011.
  6. ^ Wolstanton Weather. "Cumulus Clouds". Clouds. Archived from the original on 27 March 2012. Retrieved 13 July 2011.
  7. ^ The Weather Observer. "Cirrus Fibratus (Ci fib)". Archived from the original on 27 March 2012. Retrieved 13 July 2011.

External links

  • International Cloud Atlas - Cirrus fibratus Archived 2020-02-24 at the Wayback Machine
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Cirrus cloud (Ci) types
Species
  • Cirrus castellanus (Ci cas)
  • Cirrus fibratus (Ci fib)
  • Cirrus floccus (Ci flo)
  • Cirrus spissatus (Ci spa)
  • Cirrus uncinus (Ci unc)
Varieties
Variants
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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
Ci-only varieties
Cirrocumulus (Cc)
Species
Cirrostratus (Cs)
Species
High-level-only
mutatus cloud
  • Mutatus non-height specific (see below)
Medium-level
2–8 km
Altocumulus (Ac)
Species
Altostratus (As)
Nimbostratus (Ns)
Multi-level
Varieties
Low-level
0–2 km
Cumulonimbus (Cb)
Towering vertical
Species
Cb-only supplementary features
Cb-only accessories and other
Cumulus (Cu)
Variable vertical extent
Species
Other
Stratus (St)
Species
St-only genitus cloud and other
Stratocumulus (Sc)
Species
Low-level-only
supplementary features
Low-level-only
accessory cloud and other
Non-height
specific
Varieties
Supplementary features
Mother clouds
and human-made clouds
  • (Mother cloud)+genitus (e.g. cumulogenitus (cugen)
  • (Mother cloud)+mutatus (e.g. cumulomutatus (cumut)
  • Homogenitus (hogen)
  • Homomutatus (homut)


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