Clouds

Clouds are water. Either small liquid water drops or tiny pieces of ice. Meteorologists rank clouds according to their height and whether or not they are flat or puffy.

The graph below is Dan's easy way to remember clouds.

Flat Puffy
Low Stratus Cumulus
Medium Alto stratus Alto cumulus
High Cirrostratus Cirrocumulus
Tall

Cumulonimbus(or Thunderstorm)

Nimbus means rain cloud.

Clouds