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Optical Effects
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Moonsoon storm approaching Los Alamos, near the Sangre de Cristo mountains, north of Santa Fe, New Mexico, US
Fall colours reaching the sky during an evening over the San Francisco Bay, near Emeryville, California, US
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A reflective sunset spotted over Hutchinson Island, Florida, US
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Altocumulus stratiformis undulatus, also known as a mackerel sky, which reminded Roger Graham Hewstone of the sailor's old proverb; 'mares tails and mackerel scales make lofty ships take down their sails, wary of bad weather ahead'. This example was spotted looking west from Ormskirk, Lancashire, England.
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A line of developing storms spotted while looking east toward the western border of Joshua Tree National Park behind the Indio Hills, near Sky Valley, California, US
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Cumulus congestus spotted over Krzeszowice, Poland
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A corona amidst altocumulus undulatus, spotted over Modbury Heights, Adelaide, South Australia, Australia
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Fog and hoarfrost spotted in North Dundas Township, Ontario, Canada
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An intricate web of undulatus, accompanied by signs of lacunosus, spotted over Lake Stevens, Washington, US
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A layer of stratus over the hills in the distance, accompanied by a layer of stratocumulus in the foreground, spotted over Omak, Washington, US
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Cirrus uncinus spotted on a hot, humid day over Brisbane, Australia
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Precipitation along the horizon, spotted over the Caspian Sea
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Iridescence upon altocumulus clouds over Cherry Hill, New Jersey, US
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Stepping out of his door one day, Colin saw this vision of Great Britain painted in the sky: 'A line drawn down the length of a map of England and Scotland - the 400-mile road taken by architecture critic Ian Nairn, photographing whatever caught his eye.' (Gillian Darley) Colin spotted this revealing cumulus cloud over Leeds, England.
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Cumulus congestus spotted over Lluveras, Puerto Rico
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Primary and secondary bows spotted over Atagohama, Fukuoka City, Japan
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