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Main Cloud Types
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Other Clouds
- Arcus
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- Cap / banner clouds
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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
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- 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
Multiples examples of cumulonimbus incus, also known as anvil clouds, along with a lower layer of altocumulus undulatus, as seen from 37,000 feet above Mississippi, US
Undulatus at sunset over Vermontville, Adirondacks, New York, US
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A colourful sunset over Northern California, US
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Altocumulus lenticularis undulatus spotted over Isle of Lewis, Scotland
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The sheep didn't appear to be interested in the plethora of altocumulus lenticularis over Priddy, Somerset, England
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Altocumulus with signs of iridescence over Rye, East Sussex, England
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Asperitas following a storm over Bismarck, North Dakota, US
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Undulatus spotted by Dan's friend, John Maltese, from the shore of Lake Pleasant in the southern Adirondacks, Speculator, New York, US
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An elongated version of altocumulus lenticularis spotted over Dunkeld, Scotland
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A plethora of altocumulus over Iligan City, Philippines
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Altocumulus over Vermontville, Adirondacks, New York, US
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A vibrant sunset over Odo Yacht Harbor, Fukuoka City, Japan
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Undulatus at sunrise over Northern California, US
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Sunset over Momochi Seaside Park, Fukuoka City, Japan
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Asperitas spotted prior to what was rain for the rest of the day, seen from the I-35 highway on the road to Minneapolis, Minnesota, US
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Undulatus over Oxford, England
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