COLLISIONS AND ICE. “The newly knocked-off electrons gather at the lower portion of the cloud, giving it a negative charge. The rising moisture that has just lost an electron carries a positive charge to the top of the cloud. Beyond the collisions, freezing plays an important role. As the rising moisture encounters colder temperatures in the upper cloud regions and begins to freeze, the frozen portion becomes negatively charged and the unfrozen droplets become positively charged.”
http://science.howstuffworks.com/nature/natural-disasters/lightning1.htm
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022