Emergency crews were called to boaters in distress at Clinton Lake shortly after 6:45 p.m. Wednesday.
Five men were aboard a pontoon boat when four of them went swimming, a spokesman for the Douglas County Sheriff’s Office said. The storm caused the boat to drift away from the swimmers with one man left aboard.
The four swimmers were able to get back to shore safely.
Emergency crews launched a rescue boat, but before they arrived at the scene, a civilian boat had towed the pontoon boat back to the marina.
No one was injured in the incident.