9. Cloud Types (I + II)

Question 1

Cloud height definitions (temperate regions) + Exceptions

Answer 1

Low: below 2,000m / 6,500 ft
Medium (“Alto”): up to 7,000m / 21,000ft
High (“Cirro”): 5,000 to 13,000m / 16,500 to 45,000ft

Exceptions: Nimbostratus is almost always found at middle level but can extend into other levels, CBs have low base but high tops, Altostratus is often found at mid level but can extend hight

Question 2

Cloud formation (stratiform cloud)

Answer 2

Stable air, lower levels, frontal,lifting

Question 3

Cloud formation (cumulus type cloud)

Answer 3

Unstable air

Question 4

Cloud formation (alto / cirro cumulus)

Answer 4

Layer of unstable air aloft in generally stable air

Question 5

Cloud formation (stratocumulus)

Answer 5

Needs turbulence aloft