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Does forked lightning travel up or down? | Almanac.com

Does forked lightning travel up or down?

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Does forked lightning travel up or down?
Both, actually. A visible forked channel, called a stepped leader, stretches down from the thundercloud until it induces a streamer of positive charge to rise from Earth to meet it. As soon as the two connect and form a pathway, the bright return stroke shoots up from the ground to the cloud in what we see as the brilliant flash of lightning.

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