Refer to figure.

CIRRUS (CI) – are short, detached, hair-like clouds found at high altitudes. These delicate clouds are wispy, with a silky sheen, or look like tufts of hair. Are composed entirely of ice crystals - which provides their white colour and form in a wide range of shapes and sizes.

• Technically these clouds produce precipitation but it never reaches the ground. Instead, it re-evaporates - virga.