Text Size


Fin2swim Lightning and pool safety - indoors and outdoors

Fin 2 Swim aquatic related articles and safety tips

Fin2swim Lightning and pool safety - indoors and outdoors

Postby Keri Tom » Thu Sep 30, 2010 12:39 pm

Indoor/Outdoor Swimming Pool Safety in regards to lightning

Lightning’s behavior is random and unpredictable. We recommend a very conservative attitude towards it. Preparedness and quick responses are the best defenses towards the lightning hazard.

Swimming pools are connected to a much larger surface area via underground water pipes, gas lines, electric and telephone wiring, etc. Lightning strikes to the ground anywhere on this metallic network may induce shocks elsewhere.

    The National Lightning Safety Institute recommends the following swimming pool safety procedures:
    Designate a responsible person as the weather safety lookout. That person should keep an eye on the weather. Use a "weather radio" or the Weather Channel or other TV program to obtain good localized advanced weather information.
    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?

When you hear Thunder:

    Go indoors quickly
    Stay off the phones, computers and no video games
    Never go under a tree

Lightning’s heat exceeds 50,000 degrees F. or three times hotter than the surface of the sun. Its’ speed is 90,000 miles per second (one hundred million feet per second). The average thickness of a bolt is 1-2 inches.

The National Weather Service has more great information about lightning safety, including an activity sheet with Leo Lion for children! http://www.lightningsafety.noaa.gov/

Teach this safety slogan:
"If you can see it, flee it; if you can hear it, clear it."

In San Diego lightning is a very rare occurrence. We don't want any babies zapped or us either for that matter!
This is the only acceptable lightning that can touch down in SD. :P Chargers!

Fin2swim - Infant Aquatics Master Instructor Trainer "Life is Beautiful"
Keri Tom
Posts: 40
Joined: Fri Sep 10, 2010 3:49 pm

Return to Articles

Who is online

Users browsing this forum: No registered users and 1 guest


Who is online

In total there is 1 user online :: 0 registered, 0 hidden and 1 guest (based on users active over the past 5 minutes)
Most users ever online was 40 on Thu May 12, 2011 6:34 pm

Users browsing this forum: No registered users and 1 guest