- Cloud types, Cb: Cumulonimbus cloud, like a mountain in the sky
![Cloud types, Cb: Cumulonimbus cloud, like a mountain in the sky](http://www.skyartstock.com/peas/W012616Z-SKYART.jpg)
- W012616Z
- Cloud types, Cb: this Cumulonimbus cloud sits like a mountain in the sky behind other, lower clouds. New growth is at left, while the crown spreads to the right as a series of ruffles (merged updraft pulses) and becomes the anvil at right.
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