- Multi-tiered shelf cloud on a powerful gust front
![Multi-tiered shelf cloud on a powerful gust front](http://www.skyartstock.com/peas/W930548Z-SKYART.jpg)
- W930548Z
- A powerful gust front ahead of an intense hail storm fills the sky with a multi-tiered Arcus or shelf cloud. This side of the cloud (see W930547S for the south half) has a much lighter surface because it faces and reflects distant bright sky. The edge is also smoother here, a sign that the inflow-outflow balance is stable and uniform.
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