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The EU2017 Conference: Future Science -- Aug 17 - 20, Phoenix:

The most violent type of weather storm on planet Earth is a tornado. Meteorologists tell us that the unstable air in a thunderstorm produces updrafts and downdrafts, which interacts with a wind shear to ultimately create a tornado vortex. But many scientists acknowledge that the exact processes that cause a tornado remain mysterious. In recent Space News episodes, Thunderbolts contributor Andrew Hall has explored the electrical genesis of lightning and other earthly weather phenomena. Today, Hall offers his own thesis on the electrical genesis of tornadoes on Earth.

Andy's original Thunderblog: