A recreational motor boat carrying 10 passengers, including four children, capsized on Geneva Lake in Wisconsin on the afternoon of July 3, 2026, amid a sudden severe storm with winds gusting near 65 mph [1, 2, 3]. The boat was attempting to navigate to safety when it overturned due to rapidly deteriorating weather conditions caused by a fast-moving storm system [1, 2, 3].

Authorities recovered the bodies of three children who died as a result of the capsizing [1, 2, 3]. Seven other passengers, six adults and one child, were rescued by local police and lake law enforcement agencies [1, 2, 3]. All four children on board were wearing life jackets at the time of the incident [1, 2].

The storm brought widespread damage across Lake Geneva and Walworth County. Officials reported toppled trees, downed power lines, damaged buildings, and numerous minor injuries [1, 2, 3]. Emergency responders faced delays due to blocked roads and live power lines. Walworth County Undersheriff Tom Hausner warned, "Power lines are all over the place. We are urging people to stay away," highlighting the dangers emergency crews confronted [1, 2]. He also said, "Our resources, not just the sheriff's office, but all law enforcement resources and fire and EMS are stressed, and this compounded that to levels unprecedented" [3].

The storm caused widespread power outages affecting nearly 300,000 homes and businesses across Wisconsin, Illinois, and Michigan [2]. On the eve of the U.S. Fourth of July holiday weekend marking the 250th anniversary, Lake Geneva’s population swelled above 200,000, putting additional stress on emergency resources [1, 3].

The severe thunderstorms began sweeping through Walworth County around midday July 3, bringing damaging winds and heavy rain [2, 3]. At 12:18 p.m., the mayor of Lake Geneva declared a local state of emergency due to storm damage [3].

Officials from the Lake Geneva Police Department, Walworth County Sheriff's Office, and the Wisconsin Department of Natural Resources are investigating the capsizing incident [1, 2, 3].