- Cloud types, Acc: a clump of bubbling Altocumulus Castellanus
![Cloud types, Acc: a clump of bubbling Altocumulus Castellanus](http://www.skyartstock.com/peas/W011754Z-SKYART.jpg)
- W011754Z
- Cloud types, Acc: a clump of bubbling Altocumulus Castellanus clouds surrounded by flakes of Floccus. This cloud very much resembles Cumulus but it did not move with the near-surface flow and there were no other Cumulus in the sky. The Acc patch has a low base but formed independently of any surface-based thermals.
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