H7 Clouds: Cirrostratus (Cs) covering the whole sky
Veil of Cirrostratus covering the celestial dome.
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Notes: Although it may be relatively dense, the veil is sometimes so thin that it is barely visible. It may be distinguished from altostratus by its thinness, which allows shadows to be cast when the sun is not low in the sky, and that it often displays halo phenomena. Also, cirrus at different levels, and cirrocumulus, may be present.
