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A lenticular cloud at sunset over southern Alberta, Canada. The clouds often accompany strong "chinook" winds on the lea side of the Canadian Rockies. These dry, warm 'snow-eater' winds can abruptly melt as much as a foot of snow in one day, rapidly raising temperatures as much as 40°C (75°F).
Rainbow over Cana, United States
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Altocumulus lenticularis duplicatus near Brighton, Colorado, US
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In flight near cumulus fractus over Sydney, Australia
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Cirrus spissatus over Scarborough Marina, Queensland, Australia
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Altocumulus over Lianfan, China
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A roll cloud, which is a form of an arcus cloud, spotted near the North West Shelf off of Western Australia
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A unique perspective of a 22-degree halo, with a bee-fly visiting a poppy in the foreground, near Selma, Oregon, US
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Undulatus with indications of altocumulus lenticularis spotted near Zermatt, Switzerland
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Fluctus (Kelvin-Helmholtz) spotted over Baltimore, Maryland, US
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Stratocumulus and altocumulus over Charlotte, Michigan, US
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Glory over Albano, United States
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Crepuscular rays and shadows at sunset near Charlo, Montana, US
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Crepuscular rays emanating like spotlights from the horizon during sunrise over Busquistar, Andalusia, Spain
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Altocumulus lenticularis duplicatus, which is also known via the French term, 'pile d'assiettes', for a 'stack of plates'. This classic example was spotted over Lake Peak in the Sangre de Cristo Mountains, near Santa Fe, New Mexico, US.
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Asperitas over Kester, United States
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