You are caught on open water during a thunderstorm. what should you do?

You should stay low in the middle of the boat. You should also secure any loose If caught on a boat in a storm, captains should prepare the boat by making sure that all hatches, windows and doorways are closed to prevent flooding, that bilges are cleared of water and that gear and other loose objects are safely stored. Navigation lights should be on and speed slowed to the minimum to maintain steering and headway. All passengers should wear life vests.