- A tall, compact storm cloud with bulges on the column of rising air
![A tall, compact storm cloud with bulges on the column of rising air](http://www.skyartstock.com/peas/W013293Z-SKYART.jpg)
- W013293Z
- A tall, compact storm cloud, viewed from the back. At the top of a boiling updraft is a fuzzy patch where the bent flow above these strong air currents forms a separate Pileus cloud. The column of rising air shows three bulges corresponding to three stronger bursts of buoyant air.
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