Altocumulus clouds form rippling patterns across the dawn sky in Jerte Valley, Spain

On November 6, 2026, in Jerte Valley, Cáceres, Spain, @javierlumeras shared a video showing a spectacular display of altocumulus clouds covering the morning sky at around 8:15 a.m. In the video, an expansive blanket of scaly, rippling cloud formations stretches across the atmosphere, creating a textured pattern of alternating light and shadow. Smaller, lighter clouds appear near the horizon, while dense rows of cloud ripples extend across the upper sky. Bright morning daylight illuminates the formations, highlighting their intricate patterns and giving the sky a mesmerizing appearance. According to the author, the altocumulus clouds stole the show at dawn, transforming the sky into a striking natural display. Meteorologically, altocumulus clouds are classified as mid-level clouds, typically forming between 2,000 and 7,000 meters above the ground. They commonly appear as rounded patches, rolls, or organized rippling patterns across the sky.