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I share in La Vanguardia Readers’ Photos an image taken in Roses, in the Alt Empordà region, in which we can see a colorful wind cloud during the sunset.
The Tramuntana wind that blew all day shaped the clouds in such a way that it left us with a very photogenic sky that I did not miss the opportunity to photograph.
These wind clouds are known as lenticular, because they are shaped like a lentil, as their name indicates, or there are also those who see them as a saucer or converging lens.
They are stationary and form mainly at high altitudes in mountainous areas and isolated from other clouds. In this case, they occupy the sky over this coastal town. Among mountaineers these clouds are considered a harbinger of a storm.
As a curiosity, glider pilots continually look for these types of clouds because the atmospheric system that forms them involves large vertical movements of air, and the precise location where the rising air is located is very easy to predict by observing the orientation of the cloud. For their part, airline pilots avoid lenticular clouds due to the turbulence created in the rotor systems.