RedactedNarrative: Operator stated he had been fishing in Three Rivers Lake with his two sons and was headed back to Bates Lake boat launch. He was southbound at 60 mph just right of mid-channel and was approaching a bend in the Tombigbee River just North of Jim Burr Lake when all of a sudden his boat jumped to the right ejecting his two boys. The boat then jumped left then back right violently causing Operator to be thrown into the port side of vessel then was ejected. He also stated that all three were wearing life jackets and he was wearing his engine shut off lanyard. His two boys were not injured and they all were able to get back in the boat by a ladder that was built into the boat. He then called 911 and got an ambulance to meet him at the landing and was transported to the hospital. He stated he never saw anything before the accident and assumed it was a submerged log. I did find wood in his water intake on the foot of the motor and his motor was slightly cocked to the side.