Exactly what is a derecho?

People in the Midwest and the High Plains are used to severe thunderstorms and tornadoes. But there’s a weather phenomenon that’s becoming a more common part of their vocabulary: derechos. A year ago… a derecho swept across the Midwest and the Plains bringing widespread damaging winds, tornados and killing at least five. As Harvest Public Media’(link is external)s Katie Peikes reports, scientists are grappling with what the future of derechos could look like.