Tag: Mid-level Clouds

Altocumulus Clouds

Altocumulus are mid-level, patchy, somewhat convective clouds forming in moist layers with slight instability. They often show patterns or grouping. Their name originated in the 19th-century expansion of cloud classification, though clouds of this sort were long observed in art and literature.

Altostratus Clouds

Altostratus are mid-level, uniform grey sheets that often cover the sky and may dim sunlight or bring light precipitation. They are created by gentle lifting of moist air and were formally classified during the development of modern cloud atlases.