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Main Cloud Types
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Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
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- Cataractagenitus
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- Cavum (Fallstreak hole)
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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
Noctilucent clouds near Kemerovo, Russia
Virga over Honiton, United Kingdom
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A cloud sampler above the city, as Judy describes, spotted over New York City, New York, US
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A unique altocumulus lenticularis cloud with many layers, spotted over Mt. Hood, Oregon, US
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Crepuscular rays emanating throughout the sky over the Atacama Region, Chile
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A contrail intersecting a faint 22-degree halo, spotted over National Taipei University, New Taipei City, Taiwan
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Undulatus over the Estrella Foothills, Arizona, US
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Cirrus fibratus during sunset over Portland, Oregon, US
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Cirrocumulus over Baltimore, Maryland, US
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Asperitas over Bridlewood, Canada
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Undulatus over National Taipei University, Sanxia, Taiwan
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An intermittent display of altocumulus and stratocumulus over the Boundary Waters, Minnesota, US
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Mamma (Mammatus) over Canberra, New South Wales, Australia
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Homogenitus from what appears to be remnants of a contrail over Calaveras Big Trees National Forest, California, US
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Mamma (Mammatus) over Canberra, ACT, New South Wales, Australia
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A face in the clouds, spotted near Greenfield, California, US
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