- Weak rotation in a collapsing wall cloud as a storm is weakening
![Weak rotation in a collapsing wall cloud as a storm is weakening](http://www.skyartstock.com/peas/W012830Z-SKYART.jpg)
- W012830Z
- A collapsing wall cloud in a brooding stormy sky. Weak rotation is concentrated in the thicker part beside the rain at right. A cloud extension toward the left has formed where undercutting outflow lifts warm air on a trajectory into the main updraft of the storm. The storm is weakening and will soon die.
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