Cirrostratus cloud

A cirrostratus cloud is a cloud in the upper zone (in temperate latitudes, its base is located at an altitude of between 4,500 and 12,000 m and a thickness in the order of 500 m). More extensive than a cirrus cloud, it has a whitish and transparent veil shape and a fibrous or smooth aspect, and partially or totally covers the sky, often creating a halo around the sun or the moon. No associated precipitation.