Lenticular Cloud
Lenticular clouds (Altocumulus lenticularis) are stationary lens-shaped clouds that form at high altitudes, normally in perpendicular alignment to the wind direction. Lenticular clouds can be separated into altocumulus standing lenticularis (ACSL), stratocumulus standing lenticular (SCSL), and cirrocumulus standing lenticular (CCSL). Due to their shape, they have been offered as an explanation for some Unidentified Flying Object (UFO) sightings.
Read more about Lenticular Cloud: Formation, Flight, Altocumulus Lenticularis Gallery
Famous quotes containing the word cloud:
“I belong to the fag-end of Victorian liberalism, and can look back to an age whose challenges were moderate in their tone, and the cloud on whose horizon was no bigger than a man’s hand.”
—E.M. (Edward Morgan)