Clouds often form over mountain peaks. When warm, moisture-laden air meets the mountains, it rises and then cools causing the moisture to condensate and form clouds. If it cools enough, snow or rain will fall. This photo was taken in Frisco, CO.
. Lenticular means "lens shaped". They normally align at right-angles to the direction of the wind. As a note of interest, sailplane pilots look for these types of clouds because they indicate a long series of standing wind waves. These kinds of winds can take a glider to great altitudes and for long distances. I have a friend, Cecil Craig, who flew a glider 268 miles in 1967 from Mt. Rainier in Washington to Crater Lake in Oregon by following a series of these winds over the Cascade mountain range. He broke a few world records with that flight! This photo was taken in Colorado at Keystone Ski Resort, Breckenridge Resort can be seen far in the distance.
