Lightning sensors in space and on the ground are showing the value of having a space-based network of sensors that could spot and track storms which are likely to spawn tornadoes. 22-23 outbreak over Florida. Links to 400x533-pixel, 87K GIF . Global Hydrology and Climate Center.
Lightning is caused by warm, moist air rising rapidly through clouds.
As the moist air rises, rain drops and ices form. The motion of the ice generates an electrical charge through friction, like shuffling across a carpet on a cold winter day. This process may also provide a warning sign of the energies that could be forming a twister. Check out the Global Hydrology and Climate Center's lightning and atmospheric electricity research and education pages . Storms that sent tornadoes through Georgia in late March were observed from orbit by special sensors a few hours before and after they struck.