Cirrocumulus is one of the three main genus-types of high-altitude tropospheric clouds, the other two being cirrus and cirrostratus. They usually occur at an altitude of 5 kilometres (16,000 ft) to 12 kilometres (39,000 ft). Like lower altitude cumuliform and stratocumuliform clouds, cirrocumulus signifies convection.
7. Stratus - Stratus clouds are low level clouds that are flat and tend to cover much of the sky. They are gray in color and may produce light rain or drizzle. 8. Stratocumulus - These are low, puffy, and gray clouds. They may produce a little rain and can turn into nimbostratus clouds. 9. Cumulus - Cumulus clouds are low to mid-level clouds.
Interesting Facts about Clouds. A cloud that forms on the ground is called fog. Some clouds you see in the sky might be from airplanes. These are called contrails. High level cirrus clouds may travel at speeds up to 100 mph. Even though clouds float in the air, a single cumulus cloud can weigh hundreds of tons.