Wow! Lenticular clouds spotted from Bretton Woods Ski Resort in New Hampshire. These clouds are formed when air moves over mountain ranges, cooling enough for condensation to occur. What sets these clouds apart from others is the fact that they don't move. The clouds are constantly being reformed in the same location from new air rising. Credit to Jon Lachapelle for sharing.
Absolutely spectacular shot of lenticular clouds over the Sandwich islands. Also known as altocumulus standing lenticularis, these are stationary, lens-shaped clouds that form at high altitudes. They are included in the middle layer cloud family because the bases of the clouds are stationed between ~ 2,000 - 7,000 meters. These clouds form when moist air is forced to flow up around mountains and large hills. The water is super cooled and condensed from air below the dew point temperature.