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Altocumulus lenticularis spotted over Greenfield, California, US
A vivid corona spotted over Brighton, Colorado, US
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Signs of a corona spotted over Petaluma, California, US
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Signs of a corona and undulatus in this view from the Austrian Alps, on a day that Tobias said brought strong North Föhn winds, which is a warm, dry and gusty downslope wind when the air moves from north to south. This high altitude perspective was spotted over St. Anton am Arlberg, Austria.
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Corona spotted over Damyns Hall Airfield, Essex, England
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Various formations of Altocumulus spotted over Gog Magog Hills near Cambridge, England
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A corona spotted over Modbury Heights, Adelaide, South Australia, Australia
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A corona spotted during a walk in the forest in the Sacramento Mountains, near aptly-named Cloudcroft, New Mexico, US
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A vibrant, multi-ring corona spotted over Brighton, Colorado, US
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Vivid colours of a corona spotted over Brighton, Colorado, US
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Corona and iridescence spotted over Brighton, Colorado, US
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Cumulus fractus and signs of a corona spotted near Ottobeuren, Allgäu Region, Germany
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A vivid corona spotted over the National Cathedral, Washington D.C., US
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A corona spotted amidst the Altocumulus perlucidus, over central Minnesota, US
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Portions of a corona spotted amidst the Cirrostratus over Arvada, Colorado, US
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A mixed sky during storm Goretti spotted near Burnham-on-Sea, Somerset, England
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