* The author is part of the community of readers of La Vanguardia

In the Photos of the Readers of La Vanguardia we can contemplate this great cumulonimbus at sunset accompanied by the cows that were retreating in Manlleu, Osona region.

Cumulonimbus clouds are spectacular, apart from regularly unloading curtains of rain, as in summer storms.

They are of great vertical development, internally formed by a column of warm and humid air that rises in the form of a rotating spiral.

Its base is usually less than 2 km high while the top can reach 15 to 20 km high.

In the images we see how the great cloud seems to want to accompany the cows to the corral, while it also seems to shelter the mountain cliffs in this area of ??the Osona region.