- Relationship of air motion to cloud brightness in a mountain shower
- W005462Z
- Relationship of air motion to cloud brightness. The left side of this storm is dark because growing clouds are composed of many fine droplets that block the light. A series of updrafts forms separate showers and spreads out as anvil cloud to the right. The high anvil is progressively lighter as rainfall thins out and the water parts evaporate or freeze.
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