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Optical Effects
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Altocumulus undulatus spotted while looking west in the late afternoon, near Modbury Heights, Adelaide, South Australia, Australia
Altocumulus perlucidus spotted over Shulin District, New Taipei City, Taiwan
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Altocumulus undulatus spotted over Conwy, North Wales
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Altocumulus with signs of lacunosus, accompanied by subtle crepuscular rays closer to the horizon, spotted over Zingst, Germany
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Iridescence spotted over Madison, Wisconsin, US
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A lone Altocumulus lenticularis spotted over Cervaro, Italy
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Crepuscular rays spotted in the morning hours over Madison, Wisconsin, US
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Crepuscular rays spotted over Stroud, Gloucestershire, England
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Stratocumulus with signs of iridescence and subtle crepuscular rays, spotted over Vuosaari, Finland
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Cumulus fractus with signs of iridescence, spotted over Taiwan
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Cumulus fractus and Altocumulus spotted over North Dundas Township, Ontario, Canada
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Altocumulus perlucidus spotted over Duncans Mills, California, US
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Subtle crepuscular rays and iridescence spotted over the Carneddau Range, Conwy, Wales
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A low base storm system producing precipitation near Barrow Beach, Somerset, England
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Cumulus fractus with signs of iridescence spotted over New Taipei City, Taiwan
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Cumulus and signs of iridescence spotted over Madison, Wisconsin, US
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