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Other Clouds
- Arcus
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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
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- Halos
- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
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- 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
Pileus spotted over Hunting Island, South Carolina, US
Mammatus (Mamma) at sunset over Oro Valley, Arizona, US
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Cumulus with the backdrop of a blue sky over Estrella Foothills, Arizona, US
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A clashing of the clouds, or as Andrea notes, a "cloud-head" blowing the other clouds across the sky, as seen over Freiburg, Germany
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Valley fog accompanied by clouds above, spotted near Sappada, Italy
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A classic example of pileus spotted over Curitiba, Brazil
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A contrast in the sky over Kirkkonummi, Finland
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Cumulus development near Batanes, Philippines
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Undulatus at sunset over Vermontville, Adirondacks, New York, US
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A developing storm over the Olympic Peninsula and Puget Sound, viewed from Discovery Park, Seattle, Washington, US
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A dissipating cumulonimbus spotted during a summer road trip after leaving Mount Shasta, near Yreka, California, US
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Virga spotted during the early morning over Goodyear, Arizona, US
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A variety of clouds populating the sky over Jigyohama, Fukuoka City, Japan
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Cumulus congestus alongside a sliver of the moon, spotted over Noosa, Sunshine Coast, Australia
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Cumulus congestus over the Atlantic Ocean, viewed from Myrtle Beach, South Carolina, US
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As the plane began its descent, Rachel noticed a cloud that resembled a small, errant, and lonely tornado. This took place towards the end of a flight from Vancouver, British Columbia to Ottawa, Ontario, Canada.
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