Cirrostratus (Cs) – Derekscope

Cirrostratus (Cs) ~ High Clouds
Heights in metres: between 6,000 metres and 13,000 metres.
Height in feet: 20,000 feet and 43,000 feet.
Height in miles: above 3.7 miles and 8½ miles.
Height in kilometres: between 4.8km and 13.7km.

Cirrostratus (Cs)
– a genus of high-level, thin, and whitish clouds that typically appear as a transparent veil covering large parts of the sky.
– Because they are composed of ice crystals, they are famous for creating “halos” ~ glowing rings around the sun or moon.
o
Key features of Cirrostratus clouds
– They consist entirely of tiny ice crystals due to the freezing temperatures at high altitudes.
o
Simple way to remember
– To remember Cirrostratus easily, just think of the name in two parts:
1) Cirro = “High” (like a high-altitude “curl” or wisp).
2) Stratus = “Layer” (like a flat sheet or “stretched” out).
o

oooo
oooo

oooo
Two typical species of Cirrostratus clouds: