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Optical Effects
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Virga via two distinct rows of clouds over Northern California, US
Altocumulus lenticularis over Cooper Bay on the eastern side of South Georgia, South Sandwich Islands, British Overseas Territory
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A stunning reflection of mammatus (mamma) over Stoneridge Lake, Yukon, Oklahoma, US
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A classic and vivid example of cirrus uncinus over Somerset, England
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Haar or sea fret, also known as a cold sea fog, occurs most often on the east coast of Scotland between April and and September, when warm air passes over the cold North Sea, is seen here over Coll Beach, Isle of Lewis, Scotland
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It looks calm, but Monica conveyed that it was very windy when she found the perfect place to pull her car over and take this photograph of the full rainbow over Mono Lake, California, US
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A classic example of a 22-degree halo over Northern California, US
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An expansive display of lacunosus within cirrocumulus clouds spotted over Kamloops, British Columbia, Canada
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Virga during the afternoon over North Devon, England
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A storm system moving over farmland near Randolph, Iowa, US
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Pileus spotted over Curitiba, Brazil
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Altocumulus lenticularis in the evening sky over Segovia, Spain
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Virga amidst a colourful background, spotted over Cambridge, England
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A plethora of altocumulus lenticularis throughout the sky over Blairgowrie, Perthshire, Scotland
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Altocumulus stratiformis undulatus, also known as a "mackerel sky", spotted in the morning over Banqiao District, New Taipei City, Taiwan
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A reflection of a 22-degree halo over Isle of Lewis, Scotland
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