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Main Cloud Types
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Other Clouds
- Arcus
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- 'Supercilium' (not official classification)
- Translucidus
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- Uncinus
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- Velum
- Vertebratus
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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
Altocumulus lenticularis with crepuscular rays and shadows at sunset over Brighton, Colorado, US
Stratocumulus undulatus over Arlington, Virginia, US
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Altocumulus undulatus with signs of virga, spotted near Anaheim, California, US
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Undulatus over Huwei Township, Yunlin County, Taiwan
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Sunset over Union County, Ohio, US
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Altocumulus undulatus over Northfiled, Illinois, US
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The leading edge of what appears to be a cold front passing over Rufford, West Lancashire, England
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Altocumulus over National Taipei University, Sanxia District, Taiwan
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Asperitas over Winnipeg, Manitoba, Canada
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Asperitas spotted over Surrey, British Columbia, Canada
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Undulatus over Lake Stevens, Washington, US
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A variety of altocumulus over New Taipei City, Taiwan
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A panoramic view of altocumulus stratiformis undulatus, also known as a mackerel sky, spotted over Brightstone, Isle of Wight, England
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Altocumulus lenticularis over the Adirondack Mountains, Vermontville, New York, US
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Asperitas over Vancouver, British Columbia, Canada
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Altocumulus undulatus at sunset over Denver, Colorado, US
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