Quote Originally Posted by coombro View Post
Whats the old saying "When you hear lightning count by seconds til you hear thunder and thats how many miles the storm is. If you see lightning its where you are.
I wonder how many people have been killed because of this old saying. Sound doesn't travel 1 mile per second, it travels at about 1/5 of a mile per second. So if you see a lightning flash, and hear thunder one second later, that lightning was only 1/5 of a mile away! So, when you see lightning, count the seconds until you hear the thunder, then DIVIDE BY FIVE, and you'll be close to how far away it was.