Lightning Bolt

Lightning Safety Tips

Lightning Bolt

One dangerous aspect of weather that sometimes is not taken as seriously as others is lightning, also known as the Underrated Killer. At least 93 deaths and 300 injuries due to lightning occur in an average year across the United States, with many more who survive strikes but suffer long lasting injuries and symptoms.

In a thunderstorm areas of rising and descending air separate positive and negative charges. When this static charge becomes too great, lightning occurs. It's very similar to the spark you can get touching a light switch during winter, only on a much grander scale.

The average lightning flash could light a 100-watt bulb for more than 3 months. The temperature of a lightning bolt may reach 50,000 degrees. This rapid heating of the air near the lightning causes the thunder. Unlike tornadoes, hail, or high winds, lightning can occur during any stage of a thunderstorm.

Avoid getting caught in a dangerous situation!

If you can hear thunder,

you are close enough to be struck by lightning!

Did you know?

Thunderstorms do not have to be large in size or severe in nature to create potentially fatal lightning strikes.

As any thunderstorm grows, areas of rising and descending air cause a buildup and separation of positively and negatively charged particles within the storm. At the same time, oppositely charged particles are gathering on the ground below. The attraction between the particles in the cloud and at the ground quickly grows, and once the force is strong enough to overcome the air's resistance, lightning occurs.

Lightning can rapidly reach a temperature near 50,000 degrees Fahrenheit.

The rapid expansion of heated air causes the sound one hears as thunder.  Since light travels faster than sound through the atmosphere, the sound will be heard after the lightning is seen.

For safety, use the "30-30 Rule".

Count the seconds between the time you see a lightning strike and hear thunder.  If that time is less than 30 seconds, you should already be in a safe location.  If you are not in a safe location, you should be heading to one immediately.

You may go outside and resume activities after 30 minutes have passed since you last heard thunder.

To estimate your distance from lightning, use the "Flash to Bang Method".

If you observe a lightning strike, count how many seconds pass before you hear thunder.Take that number and divide it by five to estimate your distance from the lightning in miles.


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  • Page last modified: December 1st 2007 2:09 AM
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