A UFO-shaped lenticular cloud stunned onlookers in Lianyungang, China, but forecasters say it was likely a result of the ...

Clouds normally move with the wind currents, but not always. The wind at high altitudes might be blowing 150 mph, but if it's blowing over a barrier or mountain, the clouds appear to stand still.

Altocumulus lenticularis clouds form when moist air is forced over and around a mountain; they look like spaceships and are sometimes mistaken for unidentified flying objects! Sky High ...

These clouds are believed to have sparked the UFO craze in the 1940s when a pilot reported seeing "saucer-like" formations flying in an "echelon" fashion above Mt. Rainier in Washington.

For the date of April 11 Mystery Solved - These are orographically induced gravity wave clouds or stratocumulus lenticularis clouds. Now take a look at this wide satellite view of the Azores.

The disk shaped clouds resemble a flying saucer or stack of pancakes and according to the National Weather Service are Altocumulus Standing Lenticular (or Lenticularis) clouds. These clouds form ...