speed of thunder

Before knowing the speed of thunder you should know why thunder is generated. Thunder is a loud, explosive, resounding noise produced by the explosive expansion heated by a lightning discharge. And thunder is produced due to the friction between two immense clouds. The amount of electrical energy that flows from the cloud to the ground is so enormous. In the rainy season, you will get to hear so many thunders. Also, you can see them with your naked eye. The speed of sound is lower than the speed of light, therefore first you see thunder and then you get to hear its noise. Without delay let’s know the speed of thunder

What Is The Speed Of Thunder? 

The speed of thunder is about 1088 feet per second. When two charged clouds collide with each other, both thunder and lightning get generated but lightning travels faster than thunder. The speed of big thunder mountain railroad is about 36 miles per hour. But in Paris, the thunder mountain traveled at the speed of 41 miles per hour.  

Now, my question is for you, if you hear a thunder 4 seconds after you see the lightning how far away is the storm? Its answer will be 5 sec. How? It will be discussed in detail below with the help of another example. 

When talking about the speed of thunder and lightning, there is a myth that people say we see light first and then hear sound. It is because our eyes and ears have some distance. But, its actual reason is that the speed of light is faster than the speed of thunder sound. Therefore, when thunder and lightning happen you see light first and then listen to its sound. 

Now, you may be thinking about how fast is lightning in miles per second. So, light can travel with a speed of 186,000 miles per second. 

Now, you have an idea about the speed of lightning vs sound as well as the speed of thunder per second

Calculation Of The Speed Of Thunder 

You may have seen and heard of various lightning and thunder till now. Have you ever tried to find the speed of lightning or thunder’s sound? Your answer may be yes or no. Here we will learn how to find the speed of thunder in detail. Let’s come 

To calculate the speed of thunder, you need to measure the time in seconds between the lightning flash and the thunderclap. Then divide the number of seconds by 5. You will get the speed of thunder. How simple is it? Let’s understand with an example, 

If you hear a thunder 3 seconds after you see the lightning how far away is the storm? The answer is 3 miles. How is it? Let’s understand, 

Count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you will get the distance in miles to the lightning. Which is 5 seconds = 1 mile, 15 seconds = 3 miles. It is your answer.   

About Thunder 

What is thunder? So, it is a sound created by lightning. Depending upon the distance from and nature of the lightning, it can lie between long, low rumble to a sudden, loud crack. Many people have a fear of thunder, it is because of the loud sound and bright light, it makes you feel like it falls on you. 

The cause of thunder was a mystery for a long time but now it has been revealed. So, it is the friction between two positively charged clouds. During the rainy season, when we look up then we may see multiple clouds of black color. They are floating in the atmosphere while traveling from one place to another they collide with each other, leading to loud, bright thunder formation. 

There is a wave in thunder called a shock wave, it is sufficient to cause property damage and injury, such as internal contusion, to individuals nearby. 

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What Is The Speed Of Thunder In KM?

The speed of sound in dry air is approximately 343 m/s (1,130 ft/s) or 1,236 km (768 mi) at 20 °C (68 °F; 293 K). This translates to 3 s/km (4.8 s/mi); saying “one thousand and one.

What Is The Speed Of Thunder In Mph?

On a standard day at sea level static conditions, the speed of sound is about 760 mph, or 1100 feet/second. We can use this knowledge to approximately determine how far away a lightning strike has occurred. When lightning strikes, a bright flash of light is generated.

How Loud Is A Thunder?

The loudness of thunder can be expressed in decibels (dB). 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.

How Far Away Is 2 Seconds Of Thunder?

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.


In this article, you have learned about thunder and lightning including the seed of thunder and lightning. There are several types of thunder, sometimes they may be without noise. One of the noticeable aspects of thunder and lightning is that the lightning is seen before the thunder is heard. And why it is, is already explained above. A very big flash of lightning and an almost simultaneous sharp “crack” of thunder, a thundercrack, therefore indicates that the lightning strike was very near. Now, you have understood what the speed of thunder