It’s summer thunderstorm season for every state of the Union. For this reason, we’re focusing on the potential threat of lightning injuries and damage – and how you can mitigate them.

Every year there are about 25 million cloud-to-ground lightning flashes in the U.S. Each one of those flashes is a potential killer. In fact, in the past 10 years, lightning has claimed the lives of 300 people in the U.S. alone. Of those struck each year, approximately 30 are killed; the others suffer lifelong disabilities, says the Lightning Safety Council.

Here are a few more facts about lighting from the Lightning Safety Council and Zurich: