Types of Clouds?

There are three major categorizations for clouds. Cumulus clouds are one type of cloud, these are the white puffy clouds that you see on a clear day. If the clouds rise to high altitudes and pick up drafts and precipitation they form into cumulonimbus clouds which produce thunderstorms. This is a sub type of cumulus clouds. Stratus clouds are the type that stretch out to form a blanket across the sky. Cirrus clouds are feathery and more translucent types of clouds. Look here for more information: