PPT Slide Slide 1 of 2 Lightning can pose a danger, even when several miles away. Not only are employees working outside at risk. Lightning can start fires and it is strong enough to hurt or kill people.
Lightning can strike almost anywhere.
It can strike as far as 10 miles away from a storm. If you feel your hair stand on end, lightning is about to strike you. If you see lightning, count the number of seconds until you hear thunder. Divide the number of seconds by five to get the distance the lightning is away from you. If you see lightning and it takes 10 seconds before you hear the thunder, then the lightning is only 2 miles away from you .