Question #98725

1 Answer
Jun 3, 2017

Generally the troposphere but also the stratosphere and above.

Explanation:

As the majority of lightning occurs near the base of cumulonimbus clouds, you are looking at altitudes below 10,000 ft. This is in the troposphere.

Positive lightning (lightning formed by positively charged particles) can occur from the top of a cumulonimbus. As such they start in the stratosphere and move down to the troposphere. Occasionally these strikes even move upward through the mesosphere to interact with the ionosphere (called upper-atmospheric lightning).

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