Onlookers watched in shock as the momentum of the slide threw a girl from the attraction eight feet into the air. The slide continued to tumble another 200 to 300 feet toward a nearby field before coming to a stop.
"We're on the sidelines of the parents watching the game and then out of the side saw the bouncy house come over and everybody running for it to get out of the way," Aleah Horstman told KUSA.
At the time, bystanders were unaware that there was still a boy stuck inside the inflatable structure. Authorities arrived to the scene shortly after the incident to treat the two children involved. The girl was treated and released at the scene, while the boy was taken to a nearby hospital for minor injuries.
Officials believe the slide was blown off its support by powerful gusts in the area. This is the second time in the past month that an inflatable attraction has taken flight, causing multiple injuries. In May, strong winds sent a bounce house 50 feet into the air, dropping two children at 15 feet.