> builds up due to charged dust and other particulates My armchair guess is what you are right here, you need a path for the current. > But now I'm wondering

> builds up due to charged dust and other particulates My armchair guess is what you are right here, you need a path for the current. > But now I'm wondering how lightning in seaborne hurricanes and tropical storms originates Map them with a global wind currents, eg one from Africa bringing the sand all over the globe.