Eli5: why clouds move at different speeds

Question

Why do clouds sometimes look like they stay in one place but change shapes, sometimes look like they slowly drift by, and sometimes look like they’re moving very rapidly.

In: 2

Answer 1

Clouds move because of the wind. Wind speeds can vary, thus clouds move in different speeds to. Also, winds can blow in different speeds on different altitudes at the same time. Then some clouds will move faster than the others.