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On a windy and exhilarating hike, Heather witnessed the development of this cap cloud, which forms as a stable airstream rises to pass over a peak, cooling as it does so. It is a particular variation of a lenticularis cloud, in which the cloud lies over the mountaintop, rather than downwind from it. This classic example was spotted from the Mount Fremont lookout at Mt. Rainier National Park, Seattle, Washington, US.
A classic example of a cap cloud, a particular example of an altocumulus lenticularis, forms as a stable airstream rises to pass over a peak, cooling as it does so. Deborah's son, Peter, spotted this unique cloud formation over what appears to be Mt. Adams as he was on a plane coming in to land at Portland, Oregon, US
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There is some question as to whether or not this cloud would be viewed as a "Banner" cloud, amidst the overcast skies over Tindholmur Island, Vagar, Faroe Islands
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A classic cap cloud forming over Mount Rainier, Washington, US.
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Orographic Stratus and Stratocumulus form over Mount Teide, Tenerife, Spain, as well as a broad cap cloud.
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Low orographic clouds cover the peaks of Mingus Mountain and Prescott National Forest in Arizona, US.
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A cloud capped peak in Johnsbach, National park, Gesäuse, Austria.
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A cap cloud over Mount Arenal, Costa Rica.
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Clouds draped over the Blue Mountains, Sydney, Australia.
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A banner cloud over El Paso, Texas, US.
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A cap cloud over mount Rainier, US.
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A cloud capped mount Herðubreið, Iceland.
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Table mountain South Africa, wearing its cloud cover known as the tablecloth.
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A cloud drapes a peak in Tomales Bay, California, US.
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A rotor wave cloud over mount Volcan, San Diego County, California, US.
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A cap cloud, spotted while flying over Queen Charlotte Sound, in the Marlborough Sounds, New Zealand.
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