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This is how we started the month of November, with a great thermal contrast that makes you see the Ter River steaming as the sun rises and with clouds, in Manlleu, in the Osona region.
We can see it in this video in La Vanguardia's Readers' Photos, where the first day of the month left us these beautiful images in the river.
This smoke escaping from the river generally occurs more in the winter, but this fall the contrast in temperature between night and day is sometimes notable in some areas.
The smoke is due to the presence of very cold air passing over the surface of the water. The phenomenon is known as "arctic smoke."
This smoke is formed as a result of the arrangement of air at a very low temperature (cold focus) over a large, less cold water surface (hot focus). It causes moisture to condense only in a narrow layer on the surface of the water.
This curious phenomenon can also be observed in lakes, ponds, reservoirs or even in the sea, especially at dawn, at the transition from night to day.
Lenticular clouds have also been seen, which usually portend a change in weather. They are stationary and form at high altitudes, usually in mountainous areas and isolated from other clouds.
