Three storm chasers were killed when their vehicles collided. The storm chasers were Kelley Williamson and Randy Yarnall of Cassville, MI and Corbin Jaeger of Peoria, AZ. They were chasing a tornado on Tuesday afternoon in Texas when Williamson and Yarnall’s vehicle ran a stop sign and collided into Jaeger’s vehicle. The storm system they were covering moved through Texas and Oklahoma hadn’t caused major damage despite bringing tornadoes, strong winds and tennis-ball sized hail. The system is moving east and is threatening over 20 million residents of the south-central US with severe weather.