A thunderstorm is formed by a combination of moisture, rapidly rising warm air, and a force capable of lifting the warm air. Typically these forces are warm or cold fronts, sea breeze, or air forced over mountains.
What is Lightning?
Lightning is an electrical discharge that results from the buildup of positive and negative charges within a thunderstorm. When the buildup becomes strong enough, lightning appears as a bolt. If you can hear thunder, you are close enough to the storm to be struck by lightning.
Thunderstorm and Lightning Facts
Warning and Danger Signs
Look for darkening skies, flashes of light, the sound of thunder, or increasing wind.
Did You Know
On average, the United States gets 100,000 thunderstorms per year. Lightning kills more people each year than tornadoes or hurricanes.
Contact your local or Installation's Office of Emergency Management for more information.