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Optical Effects
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Crepuscular rays over New Taipei City, Taiwan
Cumulus over Minneapolis, Minnesota, US
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Horseshoe vortex, which forms in a region of rotating air, or vortex. This relatively rare and fleeting cloud formation appears for only a few minutes before evaporating. This horseshoe vortex was spotted over Rufford, West Lancashire, England.
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Fluctus (Kelvin-Helmholtz) spotted in the early morning over the Missouri River near Wolf Creek, Montana, US
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Altocumulus lenticularis by way of a stacked form, also known as pile d'assiettes, spotted in multiple places over Mercogliano, Italy
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Crepuscular rays emanating brightly from behind cumulus clouds over Mendip Hills, Somerset, England
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Virga descending from the remnants of a cumulus cloud, spotted over Lafayette, Colorado, US
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A curved contrail over Ningbo, China
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A classic example of Cumulus congestus over Georgetown, Texas, US
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Crepuscular rays emanating over Lake Crescent, from beyond the Olympic Mountains near Port Angeles, Washington, US
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A classic example of virga from mid-level altocumulus clouds, which in this case, consists of ice crystals and presents with a paler appearance, versus when virga takes place via low-level clouds and are composed of water droplets and appear grey. Virga can also resemble the look of jellyfish, as in this case over Knaresborough, North Yorkshire, England.
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Cumulus congestus over Beijing, China
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Sun Pillar with Sun Dogs, being formed here as the sunlight is refracted by the ground level ice crystal cloud, diamond dust, over the Adirondack Mountains in Vermontville, New York, US.
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Cumulus over Rockwall, Texas, US
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Altocumulus lenticularis in multiple variations, as well as in a stacked form, which is known as Pile d'assiettes, over the North Lake District, Cumbria, England.
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Cumulus congestus spotted over Esfarayen, Khorasan, Iran
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