In a severe thunderstorm get inside a sturdy building and stay tuned to a battery-operated radio for weather information.
Lightning is a major threat during a thunderstorm.
In the United States, between 75 to 100 Americans are hit and killed each year by lightning. If you are caught outdoors, avoid natural lightning rods such as tall, isolated trees in an open area or the top of a hill and metal objects such as wire fences, golf clubs and metal tools. It is a myth that lightning never strikes twice in the same place. In fact, lightning will strike several times in the same place in the course of one discharge. While thunderstorms and lightning can be found throughout the United States, they are most likely to occur in the central and southern states.