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Main Cloud Types
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Other Clouds
- Arcus
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- Praecipitatio
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
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- Velum
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- 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
Cloud caps known as pileus forming over the tops of Cumulus congestus clouds and spotted over Little Switzerland, North Carolina, US.
22-degree halo over Barbados, West Indies.
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Crepuscular rays over Umbria, Italy.
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Crepuscular rays over Antioquia, Colombia.
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Crepuscular Rays over Toyohama, Fukuoka City, Japan.
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Building storm systems over Cheshire, England.
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Pileus over Launceston, Tasmania.
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A lunar halo over Bozeman, US.
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A classic Cumulus congestus over Chengyang district, Qingdao City, China.
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Cumulus cloud streets spotted over the midwest region of the United States.
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A trio of Cumulus congestus with pileus caps over Maplewood, Missouri, US
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Classic 'Cauliflower' shaped congestus over Ohio, US.
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Pileus over Waterton Lakes National Park, Alberta, Canada.
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A Horseshoe vortex over Southern Alberta, Canada.
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Towering Cumulus over Roy, Oregon, US.
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A veil of velum over the Holter dam, near Wolf Creek, Montana, US.
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