Earth:Cirrus uncinus cloud
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Short description: Type of cloud
Cirrus uncinus is a species of cirrus cloud. The name cirrus uncinus is Latin for "curly hooks". Commonly called "mare's tail", this cloud species is very thin and generally sparse in the sky.[1]
The clouds occur at high altitudes, at a temperature of about −50 to −40 °C (−58 to −40 °F). They are generally seen when a warm or occluded front is approaching. They are very high in the troposphere and generally mean that precipitation, usually rain, is approaching.[2]
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Cirrus uncinus clouds over Salinas Victoria, Nuevo León, Mexico -
Cirrus uncinus clouds in the morning sky over Nandli, Himachal Pradesh, India
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