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Where stable moist air flows over a mountain or a range of mountains, a series of large-scale standing waves may form on the downwind side. If the temperature at the crest of the wave drops to the dew point, moisture in the air may condense to form lenticular clouds. As the moist air moves back down into the trough of the wave, the cloud may evaporate back into vapor. Under certain conditions, long strings of lenticular clouds can form near the crest of each successive wave, creating a formation known as a "wave cloud." The wave systems cause large vertical air movements and so enough water vapor may condense to produce precipitation. The clouds have been mistaken for UFOs (or "visual cover" for UFOs) because these clouds have a characteristic lens appearance and smooth saucer-like shape. Bright colors (called irisation) are sometimes seen along the edge of lenticular clouds. These clouds have also been known to form in cases where a mountain does not exist, but rather as the result of shear winds created by a front.
Originally posted by elevenaugust
Originally posted by kudegras
Calling all scientists to please explain why that cloud looks so much like a Flying saucer. Not saying it is, I just want the scientific perspective as to why the shape behind resembles something it couldn't be as they dont exist.
I have recently seen a lot of clouds in this shape so there must be a logical scientific explanation. [/quote
nvm...edit on 9/3/13 by SecretKnowledge because: (no reason given)
Originally posted by karl 12
Here's another one that looks a bit flying saucer-ish.
Originally posted by RoScoLaz
some very cool pics. i love clouds. my head is, and always has been, up among them.
Climate scientists have long tried doing this on their own: seeding clouds with lead, silver iodide, or dry ice in attempts to form ice crystals.