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Optical Effects
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During the monsoon season in the summer, this storm system was spotted shortly after sunset, with precipitation that appears to dissipate prior to reaching the ground (Virga), as well as areas where the rain touches the ground, near Hope, Arizona, US
Fallstreak Hole (Cavum) spotted over North Munich, Bavaria, Germany
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Developing storms spotted on a flight over the Tasman Sea, between Australia and New Zealand
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A blanket of Altocumulus stratiformis as viewed from above the clouds, spotted over Lake Michigan on approach to O'Hare International Airport, Chicago, Illinois, US
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Altocumulus radiatus indicates instability at mid-atmospheric levels and often signaling approaching stormy weather. This was true in this case as Bernhard indicated that it rained only two hours later, near the English Garden, Munich, Germany.
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A developing storm system near Place de la Concorde, Paris, France
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Late afternoon snow squalls in the mountains near Vermontville, Adirondacks, New York, US
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A range of cumulus clouds reflective with the sunlight over Kaohsiung, Taiwan
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Altocumulus lenticularis spotted overhead during a salmon fishing expedition in Argentina
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Asperitas with signs of lacunosus spotted over Sacramento, California, US
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Cirrocumulus undulatus with signs of lacunosus, spotted over Lake Stevens, Washington, US
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The shadow of the plane's contrail guiding the way for it's flight over eastern Arizona, US
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Altocumulus stratiformis undulatus, also known as a 'mackerel sky', spotted over Penobscot Bay, Maine, US
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Sunset viewed from above, on a flight from Chicago, Illinois, to Columbia, Missouri, US
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Crepuscular rays over Taipei, Taiwan
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Altocumululs stratiformis undulatus reflected on the cars during sunset over Marinoa City, Fukuoka City, Japan
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