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Main Cloud Types
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- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
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- Fibratus
- Flammagenitus (Pyrocumulus)
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- Lacunosus
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- Mediocris
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- Noctilucent
- Pannus
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- Praecipitatio
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
- Velum
- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
- Green flash
- Glory
- Halos
- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
- Moonbow
- Moondogs
- Parhelic circle
- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
- Sub parhelion
- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
The morning sky over the agricultural fields near Greenfield, California, US
Cirrus uncinus spotted over East Hampton, Long Island, New York, US
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Cirrus uncinus spotted over Boca Raton, Florida, US
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Cirrus in the morning sky over Modbury Heights, Adelaide, South Australia, Australia
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An exquisite sunrise over the Atlantic Ocean, near Boca Raton, Florida, US
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Remnants of contrails spotted over San Diego, California, US
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Cirrus uncinus with a semblance of a face within its midst, spotted over San Luis Obispo, California, US
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Cirrus on display over Lake Stevens, Washington, US
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Cirrus uncinus spotted over Seattle, Washington, US
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A flock of birds with a spotlight from the sky, observed during an ordinary moment, from a local supermarket parking lot in Medford, Massachusetts, US
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A dynamic sky with Cirrocumulus undulatus and vivid iridescence, spotted over Acadiana Regional Airport, New Iberia, Louisiana, US
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Cirrus uncinus spotted over Perth, Western Australia
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Cirrus uncinus spotted during the morning over Falls Church, Virginia, US
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Cirrus uncinus spotted during the morning over Modbury Heights, Adelaide, South Australia, Australia
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Iridescence amidst a mixed sky over Vallejo, en route to San Francisco, California, US
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Cirrus uncinus spotted on a hot, humid day over Brisbane, Australia
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