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Optical Effects
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A storm system with a well-developed arcus, also known as a shelf cloud, near Cotia, Sao Paolo, Brazil
Arcus, also known as a shelf cloud, ushers in precipitation from a storm over New Brighton Beach, Christchurch, New Zealand
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A roll cloud, which is a form of an arcus cloud, spotted near the North West Shelf off of Western Australia
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An incoming storm system from what appears to be the leading edge of it, by way of this arcus (shelf cloud), which was spotted near the Franz Josef Glacier, South Island, New Zealand
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Arcus, also known as a Shelf Cloud, is a long, dark, horizontal roll or shelf running along the base of the storm cloud’s front edge, so it is the first cloud feature to arrive as the storm approaches an area. This storm system was spotted over Danforth, Ontario, Canada.
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Arcus, also known as a Shelf Cloud, ahead of a storm over Vakaloa, Tonga
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Arcus, also known as a shelf cloud, spotted near Red Bud, Illinois, US
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Storm system near Springfield, Ohio, US
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A powerful storm system over northern Oklahoma, US
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An approaching storm near Wells, Somerset, England
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Storm system with a defined arcus, also known as a shelf cloud, near Roskilde, Denmark
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Storm system approaching South Vienna, Ohio, US
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Storm system over North Brunswick, New Jersey, US
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Storm system near Kianga, New South Wales, Australia
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Arcus, also known as a shelf cloud, is on prominent display with this storm system, captured by Susan's daughter, who was visiting near Wolbach, Nebraska, US
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Storm system near Plaquemine, Louisiana, US
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