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When lightning strikes, a noise is made which we call thunder. Thunder travels much slower, at the speed of sound, about 1088 feet per second. It takes sound about 5 seconds to travel one mile.
How fast is thunder in mph?
The return stroke (the current that cause the visible flash) moves upward at a speed of about 320,000,000 ft per second or about 220,000,000 miles per hour (about 1/3 the speed of light). In comparison, the sound of thunder travels at about 1100 ft per second or about 750 miles per hour.
How far does thunder travel in 10 seconds?
2 miles If thunder is heard The lightning is . . . 10 seconds after a flash 2 miles away 15 seconds after a flash 3 miles away 20 seconds after a flash 4 miles away 25 seconds after a flash 5 miles away.
What is the 30 30 rule for lightning?
Don’t forget the 30-30 rule. After you see lightning, start counting to 30. If you hear thunder before you reach 30, go indoors. Suspend activities for at least 30 minutes after the last clap of thunder.
How far does a thunderstorm travel?
Lightning can travel 10 to 12 miles from a thunderstorm. This is often farther than the sound of thunder travels. That means that if you can hear thunder you are close enough to a storm to be in danger of being struck by lightning.
How far away is a lightning strike if you hear the thunderclap?
When you are out in the great outdoors and have no internet access, you can calculate the distance of a storm using the simple 3-second rule: Just count the seconds between when you see the lightning strike and when you hear the thunder clap and divide this number by three.
What’s faster light or lightning?
Comparing it with the average lightning speed, Light is ~ 675.45 times faster.
Is lightning the fastest thing on earth?
It is light however, at approximately 670 million mph, which takes first place as the fastest thing in the world. Responsible for our sense of sight, light allows us to fully appreciate the world around us – whether we are experiencing life at super speeds or not.
Does counting seconds after lightning work?
If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you’ll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close. Keep in mind that you should be in a safe place while counting.
How loud is lightning up close?
A clap of thunder typically registers at about 120 dB in close proximity to the ground stroke. This is 10 times louder than a garbage truck or pneumatic jackhammer drill. By comparison, sitting in front of speakers at a rock concert can expose you to a continuous 120+ dB level.
Why is thunder so loud?
A big noise Why is thunder so loud? It’s because the amount of electrical energy that flows from the cloud to the ground is so enormous: it’s like a very big waterfall of electricity. The louder the sound that you hear, the closer you are to the lightning. Light travels through air much faster than sound.
Is it OK to have your AC on during thunderstorm?
Though it’s tempting to rely on your air conditioner, you shouldn’t run your unit during a thunderstorm. Not only does running your AC during a storm put your system at risk, but it can also put your safety at risk.
Should I unplug electronics during a thunderstorm?
Keep Your Computer Plugged In Anything that’s plugged into an outlet in your home is at risk of suffering damage from an electrical surge during thunderstorms. If an electrical storm has been forecast, unplug your computer, laptop, and other devices, and consider unplugging appliances.
Can you swim when there is thunder?
Lightning often strikes water, and water conducts electricity. That means that the currents from a lightning strike can seriously injure you. In fact, it can even kill you. This is why, when you hear thunder or see lightning, it’s a good idea to avoid the pool, beach and any other large body of water.
How fast do storm clouds move?
The wind moves the clouds. Depending on how fast the winds are blowing at the level of the clouds will determine how fast the clouds are traveling. High cirrus clouds are pushed along by the jet stream and can travel at more than 100 mph. Clouds that are part of a thunderstorm usually travel at 30 to 40 mph.
Can lightning strike 20 miles away?
This means, if there is a storm in one of those towns, folks in the other need to be aware lightning can strike in their area! Yes, lightning can travel up to 20 miles.
Can you hear thunder from 30 miles away?
Thunder is the sound produced by lightning and generally cannot be heard more than about 15 miles from the nearest point of the lightning bolt, though the upper limit of audibility can, at times, approach 30 miles.
