Cirrus fibratus or also called Cirrus filosus is a species of

cirrus cloud Cirrus ( cloud classification symbol: Ci) is a genus of high cloud made of ice crystals. Cirrus clouds typically appear delicate and wispy with white strands. Cirrus are usually formed when warm, dry air rises, causing water vapor deposition on ...

. The name ''cirrus fibratus'' is derived from

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

, meaning "fibrous". These clouds are similar to

cirrus uncinus Cirrus uncinus is a type of cirrus cloud. The name ''cirrus uncinus'' is derived from Latin, meaning "curly hooks". Also known as ''mares' tails'', these clouds are generally sparse in the sky and very thin. The clouds occur at high altitudes, at ...

, commonly known as "mares' tails"; however, fibratus clouds do not have tufts or hooks at the end. The filaments are usually separate from one another. Like other

s, cirrus fibratus occur at high

altitude Altitude or height (also sometimes known as depth) is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context ...

s. They can indicate an approaching

warm front A warm front is a density discontinuity located at the leading edge of a homogeneous warm air mass, and is typically located on the equator-facing edge of an isotherm gradient. Warm fronts lie within broader troughs of low pressure than cold fro ...

; however, they can also be an indication that fair weather will follow.

References

External links

International Cloud Atlas - Cirrus fibratus
Cirrus {{Cloud-stub

See also

References

External links