- Cloud types, Ac: Altocumulus cloud lee waves
![Cloud types, Ac: Altocumulus cloud lee waves](http://www.skyartstock.com/peas/W941309Z-SKYART.jpg)
- W941309Z
- Cloud types, Ac: an Altocumulus cloud sheet with ragged elements. The distant bands are formed by lee waves that have reshaped the cloud layer there. The wave pattern originates over hills distant lower right.
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