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Other Clouds
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- Volutus (Roll cloud)
Optical Effects
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- Wegener arc
Cavum (Fallstreak Hole), which is formed when part of the cloud layer forms ice crystals which are large enough to descend as a "fallstreak". They form in clouds of supercooled water droplets, which in the end, creates a form of virga, a trail of ice crystals that doesn’t reach the ground, but evaporates before getting that far. This classic example was spotted over Charlotte, Michigan, US.
Two growing Cumulus clouds challenging one another over Siesta Key, Florida, US
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A subtle display of undulatus spotted over Mahayil Asir, Saudi Arabia
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Altocumulus lenticularis spotted near Arboleas, Almeria, Spain
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A vibrant sky over Hobart, Tasmania, Australia
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22-degree halo spotted over Berkeley, California, US
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A classic example of a horseshoe vortex spotted by Lesleigh Griffin, which was observed for eight minutes from a beach near Penguin, Tasmania, Australia
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A mirror reflection in the water that also has a matching element to it, between the clouds and the snow on the ground, spotted near El Chaltén, Argentina
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Undulatus spotted over Jiangsu, China
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Altocumulus lenticularis spotted over Gaw Hill, Ormskirk, England
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Virga spotted at sunset over Black Mountain Tower, near Parkes, Canberra, Australia
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Cumulus fractus that Yu-Tung describes as possessing a whimsical, airy quality that takes on a shape reminiscent of a playful poodle, and adding a touch of natural softness to the urban environs over Sanxia, New Taipei City, Taiwan
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Cirrus resembling smoke coming from a chimney, spotted over Montgomery Village, Santa Rosa, California, US
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A vibrant, multi-ring corona spotted over Brighton, Colorado, US
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Multiple contrails populate the sky on a cold day near Lynchburg, Ohio, US
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A cone of cotton candy, as described by Holly, also known as candy floss, spotted over Longmont, Colorado, US
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