For millennia, people have been enthralled by the amazing natural event known as lightning. This page explores 17 amazing lightning facts that will test your understanding of this thrilling energy. From its amazing speed to its surprising events, these observations will highlight the power and mystery of one of the most amazing shows seen in nature.
1. Lightning’s Unimaginable Speed
When we talk of speed, we usually think of race vehicles, aircraft, or even light itself. But lightning’s speed is so tremendous that many of these well-known examples are rendered unworthy. About 270,000 mph (434,523 km/h) lightning moves at a startling pace. Considering this in relation to light, it is one of the fastest events seen on Earth—about one-third its speed.
Given this amazing speed, lightning can cover great distances in a split second. A lightning bolt might, for example, theoretically circle the equator of Earth around 7.5 times in one second. Though it is a complicated series of electrical discharges, lightning shows as a single, instantaneous flash to our eyes because of this fast movement.
In its destructive power, lightning’s speed also is quite important. The great energy transmitted in a lightning strike on an object can inflict instantaneous and significant damage. Lightning can shatter trees, melt metal, and start flames in a fraction of a second because of this quick energy transfer.
2. The Shocking Temperature of a Lightning Bolt
Although we usually link great heat with the sun or volcanic eruptions, lightning generates temperatures either matching or even higher than these strong sources. The air around a single lightning bolt may get five times hotter than the sun’s surface. We are discussing temperatures perhaps surpassing 50,000 degrees Fahrenheit (27,760 degrees Celsius!).
The tremendous electrical current passing through the air causes this great heat. The highly heated air molecules caused by the moving electricity expand explosively. The thunder we hear following a lightning strike results from this expansion.
Lightning generates such strong heat that it can quickly evaporate water on the ground and in the air. Even fulgurites, glass-like tubes produced from melted and resolidified sand particles, can result from lightning striking sand or dirt. Physical proof of the amazing temperatures these electrical discharges generate comes from these “lightning fossils”.
3. Lightning’s Surprising Frequency
Many people would believe that lightning is a quite rare event, maybe occurring a few times during a strong rainstorm. Still, the worldwide frequency of lightning strikes is shockingly high. About 100 times every single second, lightning strikes the ground of Earth. That comes to around 3 billion strikes annually and almost 8 million strikes every day!
The consistent atmospheric conditions that enable lightning generation explain this great frequency. There are over 2,000 thunderstorms active globally at any one moment, each maybe generating hundreds or thousands of lightning strikes.
Fascinatingly, lightning does not hit exactly everywhere. Certain places, sometimes referred to as lightning hotspots, see many more hits than others. With some sites averaging 250 lightning flashes per square kilometre year, the region where Colombia meets Venezuela in South America has greater lightning activity than practically anywhere else on Earth.