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How lenticular clouds are formed

May 22, 2014, 8:20 a.m.
lenticular clouds over a mountain

Photo: cyda101/iStock

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Is that a UFO?

A lenticular cloud, or by the more scientific name Altocumulus lenticularis, is a fascinating cloud formation, if simply for its strangeness. Want to know how to spot one of these saucer-like clouds? Click through to find out where, when and how these clouds form to boost your odds. (Text: Jaymi Heimbuch)