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Main Cloud Types
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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
- Glory
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- Helic arc
- Infralateral arc
- Iridescence
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- 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
Cirrus uncinus spotted over Wyoming, US
A classic example of a 22-degree halo spotted over Lerwick, Shetland, Scotland
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An exquisite sunset with Altocumulus lenticularis over Nubeena, Tasmania, Australia
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A developing storm system spotted looking south from Columbia, Missouri, US
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Cumulonimbus incus spotted over Puigcerdà, Spain
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A glory spotted below, along with the shadow of the plane, during a flight's descent over Helsinki, Finland
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Sun Dog (Parhelion), which displays a distinct color gradient caused by the refraction of sunlight through ice crystals, with red on the inside (closest to the sun) and fading through orange and yellow to blue/violet on the outer edge, spotted over Ormskirk, West Lancashire, England
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An eye-catching example of Altocumulus lenticularis duplicatus, also known as 'pile d'assiettes', spotted while driving west from Madrid, near Sierra De Gredos, Spain
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Crepuscular rays and shadows over North Lakes, Queensland, Australia
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A classic example of a Horseshoe Vortex spotted over Eldorado, Santa Fe, New Mexico, US
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Crepuscular rays spotted over Sizihwan Bay, near Kaohsiung, Taiwan
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A day after a tornado impacted the area, Darcie's friend, Vicki Kiesau, spotted an expansive display of Virga over Tulsa, Oklahoma, US
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After reaching the summit of Frenchmans Cap, Wayde was surrounded by clouds. After 20 minutes the clouds began to lift and clear. Then, as he began to descend, a horseshoe vortex appeared in his view, spotted from Frenchmans Cap, Tasmania, Australia.
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Crepuscular rays spotted over Western Iran
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Altocumulus lacunosus spotted over Turville, England
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Altocumulus lenticularis duplicatus spotted over the Alps Mountains, near Wagrain, Austria
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