Watch: Drone video shows damage caused by extreme windstorm in Highmore, South Dakota

Watch: Drone video shows damage caused by extreme windstorm in Highmore, South Dakota

A long-lived thunderstorm that left a trail of destruction across parts of the Upper Midwest on Monday, including a 131-mph wind gust, is being called a mini-derecho. Drone video from Highmore showed the roofs blown off some homes, in addition to destroyed outbuildings like warehouses, garages and grain silos.