All thunderstorms are dangerous and every thunderstorm produces lightning. Thunder and lightning can sometimes even come with a snowstorm! In North Central Texas, most thunderstorms happen in the afternoon.
In the United States, an average of 300 people are injured and 80 people are killed each year by lightning. Other associated dangers of thunderstorms include tornadoes, strong winds, hail, and flash flooding. Flash flooding is responsible for more fatalities (more than 140 annually) than any other thunderstorm-associated hazard.
"If thunder roars, go indoors."
If a Thunderstorm is in Your Area
Postpone outdoor activities.
Get inside a home, building, or hard top automobile (not a convertible). Although you may be injured if lightning strikes your car, you are much safer inside a vehicle than outside. Remember, rubber-soled shoes and rubber tires provide NO protection from lightning. However, the steel frame of a hard-topped vehicle provides increased protection if you are not touching metal.
Secure outdoor objects that could blow away or cause damage.
Shutter windows and secure outside doors. If shutters are not available, close window blinds, shades, or curtains.
Use a corded telephone only for emergencies. Cordless and cellular telephones are safe to use.
Unplug appliances and other electrical items such as computers and turn off air conditioners. Power surges from lightning can cause serious damage.
Use a battery-operated NOAA Weather Radio for updates from local officials.
No place outside is safe when lightning is in the area. Stay indoors until 30 minutes after you hear the last clap of thunder.
Things to Avoid
Natural lightning rods such as a tall, isolated tree in an open area.
Hilltops, open fields, the beach, or a boat on the water.
Isolated sheds or other small structures in open areas.