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Main Cloud Types
- Cumulus
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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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- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
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- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
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- Noctilucent
- Pannus
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- Pileus
- 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 classic UFO-like lenticularis over York, England.
Pyrocumulus cloud in its early development, as spotted here by Linda's niece, is the result of Volcán de Fuego, one of Central America's most active volcanoes, located near Antigua, Guatemala
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Virga spotted over Bendigo, Central Victoria, Australia
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An approaching storm, with strong winds, hail, and torrential rain, caused notable damage throughout the city of Brisbane, Australia
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Altocumulus spotted over Taiwan
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Cumulus spotted over Zhongzheng District, Taipei City, Taiwan
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A mesmerizing view of altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Rossford, Ohio, US
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A view of precipitation that appears to be reaching the ground, spotted from atop Mount Ventoux, Provence, France
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A display of cirrus at sunset over Vermontville, Adirondacks, New York, US
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22-degree halo spotted near Birling Gap, Seven Sisters, East Sussex, England
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Stratocumulus spotted over Modbury Heights, Adelaide, South Australia, Australia
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Cumulus spotted beyond the hillside over Taiwan
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Falling precipitation over Isle of Lewis, Scotland
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A set of trees reaching upwards towards the sky, with cirrocumulus undulates spotted over Somerset, England
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Cumulus congestus in the foreground of a foreboding sky, spotted over Joshua Tree and the Little San Bernardino mountains, near Sky Valley, California, US
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Altocumulus lenticularis spotted during the early morning over the Mission Mountain Range near Ronan, Montana, US
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