Clouds - Dan's Wild Wild Weather Page

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Dan's Wild Wild Cloud Gallery

These images are for non-profit Educational use only. 


Cloud Icon What are clouds?
Clouds are water. Either small liquid water drops or tiny pieces of ice. Meteorologists rank clouds according to their height and whether or not they are flat or puffy. The graph below is Dan's easy way to remember clouds.
  Flat Puffy
Low Stratus Cumulus
Medium Alto stratus Alto cumulus
High Cirrostratus Cirrocumulus
Tall

Cumulonimbus
(or Thunderstorm)

Nimbus means rain cloud.

There are some other specific types of clouds, some of which are very rare. Visit Dan's Cloud Gallery by clicking on the images above or visit Plymouth State College's "Cloud Boutique" for some fine examples and descriptions of the many varieties of clouds.

Cloud Icon How are clouds formed?

Clouds form when the air rises. As a blob of air rises it expands and gets colder, the colder air cannot hold as much water as warmer air. As the temperature and air pressure continue to drop, tiny water droplets group together into clumps called cloud droplets. At this point, the blob of air becomes a visible cloud. If the cloud keeps going up, the cloud droplets will clump together and form water droplets. These water droplets are too heavy to float in the air and they fall from the sky as either rain or snow.

Cloud Icon Clouds: Module 7  - Environment Canada

Cloud Icon Rainbows: Atmospheric Optics

Cloud Icon About Rainbows

Cloud Icon Fog

Cloud Related Learning Activities

Some of these modules require the Adobe Acrobat Reader.
The Cloud Key The Cloud in a bottle 4-12
Cloud Types Clouds
Understanding Clouds What are clouds made of?
Observing Clouds
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