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Jet streaks, bands of faster-moving air in the jet stream, can create arcs of cirrus cloud hundreds of kilometers long. [25] Cirrus cloud formation may be effected by organic aerosols (particles produced by plants) acting as additional nucleation points for ice crystal formation.
The list of cloud types groups all genera as high (cirro-, cirrus), middle (alto-), multi-level (nimbo-, cumulo-, cumulus), and low (strato-, stratus). These groupings are determined by the altitude level or levels in the troposphere at which each of the various cloud types is normally found.
Cirrus radiatus is a variety of cirrus cloud. The name cirrus radiatus is derived from Latin , meaning "rayed, striped". [ 1 ] This variety of cirrus clouds occurs in parallel bands that often cover the entire sky and appear to converge at a single point [ 2 ] or two opposite points on the horizon.
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A fallstreak hole (also known as a cavum, [1] hole punch cloud, punch hole cloud, skypunch, cloud canal or cloud hole) is a large gap, usually circular or elliptical, that can appear in cirrocumulus or altocumulus clouds. The holes are caused by supercooled water in the clouds suddenly evaporating or freezing, and may be triggered by passing ...
Jet stream-powered cirrus clouds can grow long enough to stretch across continents, but they remain only a few kilometers deep. When visible light interacts with the ice crystals in cirrus clouds, it produces glories, sundogs, and fire rainbows. Cirrus clouds raise the temperature of the air beneath them by an average of 10 °C (18 °F).
The good news is that high cirrus clouds are not enough to totally obscure the view, but instead may look like a thin mask or filter over the eclipse. Cities in Texas, including Dallas, Kerrville ...
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. [1] The clouds occur at high altitudes, at a temperature of about −50 to −40 °C (−