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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
- 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
Cumulus spotted over Mypolonga, South Australia, Australia
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A storm system with a seagull perched in the foreground, spotted over the Meinohama fishing port, Fukuoka City, Japan
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Cirrocumulus with signs of lacunosus spotted over Bethany, Oklahoma City, Oklahoma, US
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Stratocumulus spotted over Sanxia, New Taipei City, Taiwan
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A heart-shaped cloud spotted shortly before dusk from the Pompano Beach Pier, Pompano Beach, Florida, US
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A larger fallstreak hole (cavum) accompanied by a smaller one, spotted over Arlington, Washington, US
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A sky of colour over Khomeynishahr City, Esfahan, Iran
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Cirrus vertebratus spotted over Bad Soden, Hessen, Germany
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Sunset over Lisboa, Portugal
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A classic example of a large horseshoe vortex spotted in the late afternoon over Asheville, North Carolina, US
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A 'spinning top' spotted in the early morning over the Mission Mountain Range, near Charlo, Montana, US
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A storm system that moved out to sea, spotted from the South Coast of New South Wales, Australia
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Cirrus uncinus spotted over Mokpo, South Jeolla Province, Korea
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Lunar crepuscular rays spotted over Charleston, West Virginia, US
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Circumzenithal Arc spotted over Lombard, Illinois, US
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