Wave cloud
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Image:Wave cloud.jpg Image:Tadrart01.JPG
A wave cloud is a cloud form created by atmospheric standing waves. Wave clouds are commonly long strings of lenticular clouds, created when an air mass passes over a geographic feature and a standing wave forms downwind. As an air mass travels through the wave, it undergoes repeated uplift and descent. In the uplift previously clear air may cool sufficiently for a cloud to form. In the descending part of the wave this cloud will evaporate, leading to the characteristic repeating cloud/clear bands.
See: lee waves
