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Other Clouds
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Optical Effects
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Iridescence spotted over Broomfield, Colorado, US
A unique example of Altocumulus lenticularis duplicatus, also known as 'pile d'assiettes', spotted over Sheffield, Canterbury, South Island, New Zealand
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An expansive display of virga spotted over Antwerp, Belgium
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Altocumulus stratiformis undulatus spotted over Cape St Vincent, Algarve, Portugal
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Iridescence spotted over Arlington, Virginia, US
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Altocumulus lenticularis duplicatus spotted over Trieste, Italy
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Altocumulus lacunosus spotted over Turville, England
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An abundance of distinct fallstreak holes (cavum), also known as 'hole punch clouds', are formed when supercooled water droplets freeze into ice crystals and fall out, often triggered by a passing airplane. These classic examples were spotted over Prescott Valley, Arizona, US.
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Virga over the Northeast Canadian High Arctic
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Altocumulus lenticularis duplicatus, also known as 'pile d'assiettes', over the Sandia Mountains, Albuquerque, New Mexico, US
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Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Archer, Florida, US
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Altocumulus lenticularis duplicatus spotted over the Alps Mountains, near Wagrain, Austria
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A dynamic, sideways-appearing Altocumulus lenticularis spotted over Fagurholsmyri, Iceland
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Multiple examples of Altocumulus lenticularis spotted near Portobello, Scotland
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Crepuscular rays over Wembury Beach, Devon, England
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Fluctus (Kelvin-Helmholtz) spotted over San Diego, California, US
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