Out of the 1,500 or so active volcanoes around the world, one erupts every week on average. And the hot plumes of ash they spew into the atmosphere are the most dangerous part of these eruptions, threatening downwind communities and even planes. It turns out these plumes also form lightning! Tune into this episode of Weathered to learn how the volcanological community is using this terrifying weather phenomenon as an early detection system that might just save your life!