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Main Cloud Types
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Other Clouds
- Arcus
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
- Velum
- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
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- Circumscribed halo
- Circumzenithal Arc
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- Corona
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- 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 mixed sky over Fixin, Burgundy, France
Altocumulus perlucidus spotted during an invigorating morning run, near New Taipei City, Taiwan
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Undulatus on a windy day over London, England
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A view from above the clouds over Kazakhstan
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Virga spotted over North Brunswick, New Jersey, US
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A cloud that looks like a fox, spotted over Avondale, Arizona, US
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Stratus along the mountain valleys, spotted near DeLat, Vietnam
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Supercilium, an unofficial classification for short-lived cloud formations that resemble eyebrow-like features, spotted over Bodega Bay, California, US
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Altocumulus perlucidus over Modbury Heights, Adelaide, South Australia, Australia
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A storm system on the horizon, spotted from Yanliao Village, Shoufeng Township, Hualien, Taiwan
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Undulatus over Burgundy, France
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A mixed sky over Arnhem, The Netherlands
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A growing cumulus congestus spotted over North Devon, England
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A variety of altocumulus spotted over Taylor, Texas, US
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Birds in flight beneath altocumulus, spotted over Esfahan, Iran
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Lunar iridescence within a layer of altocumulus, spotted from the hills overlooking the sea and the Principality of Monaco
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