A tornado tore through several northern Colorado towns on Thursday, flipping over tractor-trailers, ripping roofs off buildings & killing at least one person. The Weld County coroner’s office confirmed one person was killed in the storm, which struck about 80 kilometers north of Denver. The office declined to provide details about how or where the person was killed.

Television footage showed homes & buildings with roofs missing & farm irrigation equipment crumpled. Windsor, a farm town of about 16,000, appeared the hardest hit. Video footage showed a dark gray funnel perhaps a quarter-mile wide near Windsor with heavy hail and rain. Interstate 25, the main north-south highway, was closed to traffic. Some 60,000 customers lost power in the area.