Cloud Features

Question 1

What is cloud cover measured in?

Answer 1

1/8th’s

Question 2

What is the height from the base measured in?

Answer 2

Feet

Question 3

What are the three levels of cloud and their typical height ranges?

Answer 3

High (Ch) - 15,000 ft +
Medium (Cm) - 8-10,000 ft
Low (Cl) - 1,000 ft

Question 4

What are the two main descriptors?

Answer 4

Cumuliform for free convection and Stratiform for forced convection

Question 5

What are the factors that may lead to cloud dissipation?

Answer 5

1. Radiative heating from above
2. Adiabatic heating
3. Mixing
4. Removal of heat

Question 6

Which type of cloud is present before thunderstorms and looks like turrets in the sky?

Answer 6

Altocumulus castolonas

Question 7

What type of cloud is common in mountain regions and is dangerous to aviation because of its atmospheric rotation?

Answer 7

Lenticular Clouds

Question 8

What type of cloud most often causes aircraft turbulence?

Answer 8

Altocumulus at Sea

Question 9

Why are Cirrus clouds the highest?

Answer 9

They are often at the front end of a density boundary

Question 10

Which two types of clouds are ‘blanket like’?

Answer 10

Altocumulus (Ac) and Stratocumulus (Sc)