Atmospheric Phenomena


How wide is a lightning bolt?

Because of the intense glow of light that is emitted from lightning bolts, they may appear much wider than they actually are. The speed of lightning can vary from 100 to 1,000 miles (160 to 1,600 kilometers) per second for the downward leader track; the return stroke is 87,000 miles (140,000 kilometers) per second (almost the speed of light).


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