How Do Lenticular Clouds Form?
Lenticular clouds, also sometimes known as “lee clouds,” “wave clouds” or by their scientific name of “altocumulus standing lenticular clouds,” are smooth and shaped like lenses or lentils. They have been mistaken for UFOs because of their unusually uniform surface and saucer-like shape. Lenticular clouds may appear singly or in stacks, and form near tall geographic features that interrupt airflow and create standing waves in the atmosphere.