Low clouds (Family C)
These are found up to 2,000 m (6,500 feet) and include the stratus (dense and grey). When stratus clouds contact the ground, they are called fog.
Clouds in Family C include:
* Cumulus (Cu) o Cumulus humilis o Cumulus mediocris * Stratocumulus (Sc) * Nimbostratus (Ns) * Stratus (St)
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