The air up there: CU team deploys multiple drones in tornado study

It’s a little after 6:30 p.m. when Aidan Sesnic calls a huddle for members of the CU Boulder TORUS team on the side of a lonely dirt road in rural Oklahoma. This particular safety briefing would be standard, if not for the large black- and green-tinged supercell thunderstorm crawling across the soft, rippling plains behind him.