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

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 ...

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.