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Optical Effects
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In a unique juxtaposition, Roger wondered if the barbed wire was there to protect walkers from this 'crocodile', spotted over Gaw Hill, Ormskirk, England
Cirrus and Cirrostratus spotted over Seattle, Washington, US
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A plethora of Altocumulus stratiformis spotted over Hood River, Oregon, US
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A vivid primary rainbow along with a subtle secondary bow, spotted shortly before sunset over Sumirago, Varese, Italy
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Sunset near Lake Michigan, viewed from Kenosha, Wisconsin, US
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Undulatus within a dissipating altocumulus lenticularis formation, spotted over Brighton, Colorado, US
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An evening spotlight on the Mission Mountains, near Ronan, Montana, US
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Subtle signs of a 22-degree halo spotted over Grayslake, Illinois, US
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Cirrostratus spotted over Falls Church, Virginia, US
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Fallstreak Hole (Cavum) spotted over Conwy, North Wales
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Altocumulus stratiformis spotted at sunrise over Marinoa City, Fukuoka City, Japan
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Crepuscular rays spotted over Jeollanam-do, South Korea
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Altocumulus spotted over Pietracorbara, Corsica, France
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Remnants of a nearby contrail gives the illusion that its coming upward from the cloud below, spotted over Whitestone, New York, US
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A reflection of cumulus by way of the Hancock Tower, spotted near Back Bay, Boston, Massachusetts, US
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Cloud Streets spotted on a cold morning, overlooking a foggy Saranac River Valley with stratus enveloping the tops of Esther and Whiteface Mountains, near Vermontville, Adirondacks, New York, US
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