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Images Dated 12th July 2002

Choose from 16 pictures in our Images Dated 12th July 2002 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Skier looks at a lenticular cloud Featured 12 Jul 2002 Image

Skier looks at a lenticular cloud

Lenticular cloud. Skier looks at a lenticular cloud or altocumulus lenticularis. These clouds get their name from their smooth, lens-like shape. They are usually caused when wind forms standing waves of air on the lee side of mountains. Lenti- cular clouds form when moisture in the air conden- ses at the top of these waves, and dissipate when the air descends again. The cloud pattern depends upon the wind speed and the shape of the mountains. A constant wind may produce clouds which are stable and remain virtually stationary in the sky for long periods. Lenticular clouds are sometimes mistaken for alien flying saucer spacecraft. Photographed from Mauna Kea, Hawaii, USA

© Magrath/Folsom/Science Photo Library