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Pileus over Waukesha County, Wisconsin, US
Pileus accompanying a Cumulus congestus cloud formation above Charlotte, North Carolina, US
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Cloud caps known as pileus forming over the tops of Cumulus congestus clouds and spotted over Little Switzerland, North Carolina, US.
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The distinctive breaking-wave shape of a fluctus cloud feature was spotted here along the top of the accessory cloud cap known as a pileus. This is a rare combination of features, spotted over Franklin County, AL, US.
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Pileus over Launceston, Tasmania.
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A trio of Cumulus congestus with pileus caps over Maplewood, Missouri, US
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Pileus over Waterton Lakes National Park, Alberta, Canada.
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Pileus over Wolf Creek, Montana, US.
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Pileus at sunset over the town of Florenville, in the Belgian Ardennes, near the French border.
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Pileus over Xiamen city, China.
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Pileus over Bigfork, Montana, US.
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A pair of pileus capped Cumulus congestus over Barcelona, Spain.
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A pileus formation over Erm, Netherlands.
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A view of Pileus capped Cumulus congestus over Tuscany, Italy.
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Iridescence in pileus over Ty Ty, Georgia, US.
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A transition from pileus crown to velum veil over Virginia, US.
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