Learn About Clouds

What are clouds? From the International Cloud Atlas they are defined as "the visible aggregate of minute particles of water and/or ice". Basically, clouds form when water vapor condenses.

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Basic Cloud Types

By convention, clouds are vertically divided into three level; low, middle, and high. Each level is defined by the range at which each type of cloud typically appears. Divided by their height the ten types of clouds are...

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NWS Cloud Chart

Not as much a cloud chart as it is a 'state of the sky' chart. This chart displays a mixture of individual clouds and combinations of clouds. This is all to provide a picture of the state of the atmosphere at the time of observation.

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