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Optical Effects
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A colorful sunrise over the Atlantic Ocean, as viewed from Boca Raton, Florida, US
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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A storm system approaching a set of windmills near the Gaomei Wetlands, Taichung, Taiwan
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Mamma (Mammatus) spotted over Las Vegas, Nevada, US
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A storm system forming over Wairau Valley, Marlborough, South Island, New Zealand
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Above a layer of stratus, near Sagres, Algarve, Portugal
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An expansive storm system with shreds of pannus, which are also known as scud clouds, forming below the cumulonimbus, as captured by Warren Keelan from the top of Mount Kiera in Wollongong, New South Wales, Australia
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Sunset after a snowstorm over the Adirondack Mountains near Vermontville, New York, US
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Storm system with what appears to be falling snow near Tarves, Aberdeenshire, Scotland
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Altocumulus lenticularis that appears to also be producting precipitation, as viewed from a hotel room in Las Vegas, Nevada, US
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Storm system with heavy precipitation over Mercogliano, Italy
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Storm system accompanied by an adventurous surfer, off of the Dingle Peninsula, Ireland
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An early afternoon storm system coming in from the west, near Moiese, Montana, US
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Two sandstone cloudspotters discussing the weather, as Paul observed, in this photograph of a storm system in the distance, near Bluff, Utah, US
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A storm system with what appears to be a microburst occurring close to shore, spotted near Boca Raton, Florida, US
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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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