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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
- Capillatus
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- Cataractagenitus
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- Cavum (Fallstreak hole)
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- Duplicatus
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- Fractus
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- Mediocris
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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
A misty scene over Deutschlandberg, Austria.
Reflections of the sky over the Little Missouri River, near Elkhorn Ranch, North Dakota, US
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Iridescence and undulatus spotted over Canutillo, Texas, US
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Cumulus on a mild spring day with little wind, spotted over Modbury Heights, Adelaide, South Australia, Australia
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Stormy skies over Wolf Creek, Montana, US
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Altocumulus perlucidus over Esfahan, Iran
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Cumulus congestus and the moon, spotted over Taichung, Taiwan
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A developing storm spotted over Eastern Shore of Chesapeake Bay, Maryland, US
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Mammatus (Mamma) spotted over Sourton Down, Okehampton, England
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Crepuscular rays near Falmouth, Cornwall, England
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A mixed sky over the Atlantic Ocean, near Boca Raton, Florida, US
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A vivid rainbow spotted over Wellington Harbour, New Zealand
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Undulatus spotted over Marinatown, Fukuoka City, Japan
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While driving home, Bernard spotted a 'crocodile' amidst the cumulus congestus over County Kildare, Ireland
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A dual lightning strike captured via a photograph with a 4-second exposure during twilight over Bluff, Utah, US
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A dissipating cumulonimbus incus spotted over Scottsdale, Arizona, US
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