The National Lightning Safety Institute recommends the following TWO swimming pool safety procedures:
- When thunder and/or lightning are first noticed, use the Flash-To-Bang (F-B) method to determine its’ rough distance and speed. This technique measures the time from seeing lightning to hearing associated thunder. For each five seconds from F-B, lightning is one mile away. Thus, a F-B of 10 = 2 miles; 15 = 3 miles; 20 = 4 miles; etc. At a F-B count of thirty, the pool should be evacuated. People should be directed to safe shelter nearby.
- Pool activities should remain suspended until thirty minutes after the last thunder is heard. The distance from Strike A to Strike B to Strike C can be some 5-8 miles away. And it can strike much farther away. Why take a chance with lightning?
WE TAKE THUNDER + LIGHTNING + POOL VERY SERIOUSLY.
If you can see it, flee it; if you can hear it, clear it.