This is why you don’t want to be on the water while a thunderstorm is rolling through. Below is a sequence of three, 30-second exposure photos taken over a course of three minutes during a thunderstorm in Chicago, summer of 2011. Pay close attention to the time stamps below. In the first photo, notice the police boat (the blue line on the water) moving on the water. In photo two they make the decision to turn around and go back. Flip to photo three and see what happened to the storm only two minutes later. Probably the best decision the captain of that boat ever made.