- Many lightning strikes due to forward propagation of a severe MCS
![Many lightning strikes due to forward propagation of a severe MCS](http://www.skyartstock.com/peas/L906130Z-SKYART.jpg)
- L906130Z
- A severe MCS (Mesoscale Convective System) is about to arrive. The clues are in where the lightning is and how it behaves. A few quick bolts ahead of a fuzzy area with frequent but longer flashes shows that new updrafts are forming ahead of a large region of rain. This setup happens when the system grows by forward propagation as it lifts warm air at the front side.
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