Lenticular Clouds

This is a photo of the small island of Litla Dimun which is situated between Suouroy and Stora Dimun in the Faroe Islands. It is the smallest of the Islands being less than 100 hectares (250 acres) in size and it is uninhabited.

The island is often covered by lenticular clouds. Lenticular clouds, also known as altocumular standing lenticularis clouds, are formed when a current of moist air is forced upwards as it travels over elevated land. This elevation and subsequent decrease in temperature causes the moisture in the air to condense and form a cloud.

Lenticular clouds appear to be perfectly stationary but in fact this is not the case. These clouds only appear stationary because the flow of moist air continually resupplies the cloud from the windward side even as water evaporates and vanishes from the leeward side. Lenticular clouds can look like they are hovering for hours or days, until the wind or weather changes and the clouds disperse. Via EarthStory

This entry was posted in Earth Sciences. Bookmark the permalink.