Puffy to wispy, barely there or dark and menacing, clouds come in many shapes and sizes. Each tells a story about what’s ...

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However, if the air is particularly warm and humid, and the atmosphere above is much colder, cumulus clouds can rapidly grow ...

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Clouds that look like cartoon cotton balls or cauliflower are made up of tiny liquid water droplets and are called cumulus clouds. Often, these are fair-weather clouds that form when the Sun warms ...

Once you understand how certain clouds develop their shapes, you can learn to forecast the weather. Clouds that look like ...