- Cloud types, Cb: back side of a bright, boiling Cumulonimbus cloud
![Cloud types, Cb: back side of a bright, boiling Cumulonimbus cloud](http://www.skyartstock.com/peas/W943171Z-SKYART.jpg)
- W943171Z
- Cloud types, Cb: from the back (west) side, this Cumulonimbus cloud looks like a bright, boiling vertical mass. Updrafts maintain continuous condensation and a detailed, billowy structure, while the anvil is mostly out of sight. Low-level haze renders the lower parts a dusty pink color. The same storm seen from the front is in W943096S.
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