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Other Clouds
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Optical Effects
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Altocumulus lenticularis spotted during sunrise over Vermontville, Adirondacks, New York, US
A classic example of a fallstreak hole (cavum) within a layer of altocumulus, with signs of iridescence near the leading edge of the descending ice crystals, spotted over Lyons, Oregon, US
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Fallstreak Hole (Cavum) spotted while driving near Elgin, Moray, Scotland
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A sky filled with cirrocumulus and an array of colours brought forth by iridescence, spotted over Mirabelles-aux-Baronnies, Drome, France
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Cirrostratus undulatus spotted over Madison, Wisconsin, US
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A grand display of altocumulus lenticularis spotted over Kvaløya, Norway
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Altocumulus stratiformis undulatus, also known as a mackerel sky, was captured by Carl McGarrigle, who also remarked 'I forgot to iron the sky this morning'. This classic example was spotted over Preston, Lancashire, England.
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Altocumulus lenticularis spotted at sunrise over the Flatirons, south of Boulder, Colorado, US
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Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Ipswich, Suffolk, England
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Altocumulus lenticularis spotted at sunset over the Sangre de Cristo Mountains north of Santa Fe, New Mexico, US
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Altocumulus undulatus radiatus over Brisbane, Australia
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Crepuscular rays and shadows during sunset over Brown County, Minnesota, US
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Undulatus on full display, spotted by Peter's sister, Martha Yaney, over Darien, Connecticut, US
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Altocumulus undulatus radiatus spotted over West End, Brisbane, Australia
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Altocumulus undulatus radiatus spotted over Taringa, Queensland, Australia
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Reflections of altocumulus lenticularis over Mirror Lake, Lake Placid, New York, US
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