Cirrus clouds, also known as mare's tails. Cirrus clouds are found at high altitudes, typically above 5000 metres. They consist of tiny ice crystals,

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Cirrus clouds, also known as mare's tails. Cirrus clouds are found at high altitudes, typically above 5000 metres. They consist of tiny ice crystals, which are blown by the wind into characteristically wispy shapes. A bank of cirrus clouds may indicate an approaching weather front. Photographed in Somerset, UK.

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Size: 5120px × 3427px
Photo credit: © DAVID AUBREY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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