The first happened Friday about 7 p.m. near Kenosha. A sailboat had capsized, stranding two people in the water.
A rescue boat and helicopter were dispatched to the scene. The boat crew rescued one person and the other swam about 100 yards to shore. The Coast Guard says one person was treated for mild hypothermia.
About 30 minutes later, boaters near Two Rivers radioed for help after their boat started taking on water. Another boat crew responded with a pump that crew members used to clear the water. The crew then escorted the vessel to a marina, where it was removed from the water.