One theory of cloud electrification states that during the formation of precipitation, regions of separate charge exist within tiny cloud droplets and larger precipitation particles. In the lower part of these particles we find negative charge, whereas in the upper part we find positive charge.

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The theory of cloud electrification suggests that the separation of charges occurs not within individual droplets or particles, but rather among different regions or types of particles within the cloud. For example, lighter, positively charged ice crystals might rise to the top of the cloud, while heavier, negatively charged graupel or hail particles fall to the lower part of the cloud, leading to a separation of charges within the cloud structure.

One Theory of Cloud Electrification States That During the Formation