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In The Photos of the Readers of La Vanguardia we can see these images of Stratocumulus undulatus observed in Vic, capital of the Osona region.
These ripples can be observed in fairly uniform cloud layers or in clouds composed of separate or merged elements. Sometimes a double system of undulations is observed.
The cloak is composed of sizable and often gray elements, arranged in a system of nearly parallel lines.
Sometimes a double system of undulations in the form of transversal lines that cross the main system is observed.
In this case, the elements appear to be arranged in rows and rows. We can see it in this accelerated video:
