GEOG 101 Lecture Notes - Lecture 24: Cirrocumulus Cloud, Mackerel Sky, Cumulus Cloud
Document Summary
The shape of cirrus clouds may be indicative of upper air turbulence. High, puffy, produce a mackerel sky" appearance. The entire sheet of cloud cover is referred to as a cirrocumulus cloud; individual puffs are referred to as cloudlets. Sheet-like, thin and white, cover the entire sky, may create a halo effect. They are sometimes indicative of disturbed weather arriving in. Puffy greyish-white, larger and darker than cirrocumulus. Their presence may indicate a chance of thunderstorms later in the day. Cover the entire sky; the sun appears shimmery. They are darker than cirrostratus, but lighter than nimbostratus clouds. The common cloud responsible for an overcast sky. They obscure the sun but do not produce precipitation. Made up of horizontal layers with a uniform base. Puffy, grey, ominous; solar rays may shine through (crepuscular rays) They form when there is stable air in the mid-troposphere. Stable air prevents clouds from growing any further in height.
