THUNDERSTORMS, LIGHTNING AND HAIL
All thunderstorms are considered dangerous because they contain lightning and can also produce damaging winds, heavy rain which may cause flooding, tornadoes, and hail. While thunderstorms and lightning can be found throughout the United States, they are most likely to occur in the central and southern states.
The two main tips to remember about lightning safety are 1) being outside is never safe during a thunderstorm and 2) if you can hear thunder, then you are close enough to be struck by lightning! Always remember the 30/30 rule: go inside if you hear thunder within 30 seconds of a lightning flash and wait at least 30 minutes after you hear thunder before going back outside.
In a severe thunderstorm, get inside a sturdy building and stay tuned to a battery-operated radio for weather information. 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.