Cirrus fibratus

Cirrus fibratus or also called Cirrus filosus is a species of cirrus cloud. The name cirrus fibratus is derived from Latin, meaning "fibrous". These clouds are similar to cirrus uncinus, 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.

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

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

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