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How lenticular clouds are formed

By: Jaymi Heimbuch on May 22, 2014, 8:20 a.m.
lenticular clouds over mountains

Photo: Marc Veraart/Flickr CC

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In constant motion

Lenticular clouds are a bundle of movement, yet they look stationary. That’s because the flow of moist air up one side of the mountain replenishes the cloud on the windward side while the dry air flowing down the other side dries the cloud out on the leeward side. When formed above a mountain, it can seem to hover for hours or even days until weather conditions change.