- Intracloud lightning illuminates a shelf cloud at night
![Intracloud lightning illuminates a shelf cloud at night](http://www.skyartstock.com/peas/L852722Z-SKYART.jpg)
- L852722Z
- A storm shelf cloud is approaching at night. Light from many intracloud lightning flashes silhouettes a dark cloud bank with a smooth forward surface and ragged base, indicative of a typical gust front and shelf cloud (Arcus) preceding the rain and wind.
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