- Cloud types: multi-layered lenticular Altocumulus standing wave clouds
![Cloud types: multi-layered lenticular Altocumulus standing wave clouds](http://www.skyartstock.com/peas/W882109Z-SKYART.jpg)
- W882109Z
- Cloud types: these dense, multi-layered lenticular Altocumulus clouds, sidelit at sunset, formed to the lee of the Rocky Mountains near Banff in a standing wave by strong winds aloft.
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