* Stratus (St): These are flat, featureless, gray clouds that often cover the entire sky. They can produce light rain or drizzle.
* Cumulus (Cu): These are fluffy, cotton-like clouds with flat bases and rounded tops. They are often associated with fair weather, but they can also grow into towering cumulonimbus clouds that produce thunderstorms.
* Stratocumulus (Sc): These are gray or white patches of clouds that often appear in rows or waves. They can produce light rain or drizzle.
* Nimbostratus (Ns): These are dark, gray clouds that produce continuous rain or snow. They can be very thick and cover the entire sky.
* Cumulonimbus (Cb): These are towering, thunderhead clouds that are associated with thunderstorms. They can produce heavy rain, hail, lightning, and strong winds.
It's important to note that the specific altitude at which these clouds form can vary depending on geographic location and other atmospheric conditions.
