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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
A captivating, mixed sky over Lisbon, Portugal
Altocumulus straitformis undulatus spotted over Lizard Point, Cornwall, England
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A crisp, radiant morning view over the lake called Oosterplas, 's-Hertogenbosch, The Netherlands
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Altocumulus lenticularis spotted at dawn over Cantabria, Spain
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A robust, developing storm system spotted over Turks and Caicos Islands
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Cirrus uncinus spotted over Perth, Western Australia
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A rare juxtaposition of Fluctus (Kelvin-Helmholtz) with Altocumulus lenticularis duplicatus, spotted during a geomorphology-focused field trip, wherein Oscar was captivated by what was unfolding above on this windy day near Mt. Cook/Aoraki, Tasman Valley, New Zealand
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Cumulonimbus incus spotted near Tolsta, Isle of Lewis, Scotland
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Signs of supercilium and lacunosus spotted near Mercogliano, Italy
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Multiple examples of Cumulonimbus incus forming within a line of storms, spotted from above the clouds over Western Australia
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Sunset during the coldest month in over 50 years, spotted by Anna Ralph from Musher's Hall in Fairbanks, Alaska, US
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Sunrise with a subtle sun pillar to the left of Whiteface Mountain, near Vermontville, Adirondacks, New York, US
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A giant bird hovering over Manhattan at sunset, spotted looking south from Westchester, New York, US
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Cumulus congestus spotted along with springbok crossing the road, in Etosha National Park, Namibia
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A mixed sky during storm Goretti spotted near Burnham-on-Sea, Somerset, England
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Sunset over the Gulf of Mexico near the Yucatan Peninsula, Mexico
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