how far is the lightning and thunder
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Understanding Lightning Science This causes the air to expand rapidly and creates the sound wave we hear as thunder. Normally, you can hear thunder about 10 miles from a lightning strike. Since lightning can strike outward 10 miles from a thunderstorm, if you hear thunder, you are likely within striking distance from the storm.
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The Science of Thunder Science of Thunder. Lightning has a diameter of 1-2 inches (2-5 cm) and can heat air to 70,000° F (39,000° C) in a few milliseconds. Ninety percent of the electrical energy of lightning is released in the form of heat, which is quickly dissipated into the atmosphere.
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- 1 If you find out that the lightning is less than a mile away, make sure you find/have shelter immediately. Lightning might strike you.  Due to the way sound travels and how various objects, such as mountains and buildings, interact with sound waves this is not the most reliable way to predict lightning distance.
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Debunked: 5 Lightning Myths That Could Kill You People are able to hear thunder from about 10 miles away, Jensenius said. But any number of factors can interfere with the warning. “In many cases you can’t hear it that far because of background noise,” he said. “You won’t hear it if you’re near a highway or in a crowd at a fair or a ball game.
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How to Survive A Lightning Strike (Once Or Twice) Find out how close it is. A better indicator that lightning is going to come near you is to count the seconds between a distant lightning strike and the explosion of thunder that follows. Sound travels at, roughly, 1 mile every 5 seconds. So, if you get to 10 seconds you know the lightning’s 2 miles away.
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The Sound of Thunder The sound is more muted. Then other shock waves from more distance locations arrive to the listener. Shock waves from different locations along the lightning bolt can arrive at the same time to the listener's ear enhancing the volume. At large distances from the center, the shock wave (thunder) can be many miles across.
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Flash Facts About Lightning &#149 If you can hear thunder, you are within 10 miles (16 kilometers) of a stormand can be struck by lightning. Seek shelter and avoid situations in which you may be vulnerable. &#149 Use the 30-30 rule, when visibility is good and there is nothing obstructing your view of the thunderstorm.
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Lightning Strikes and Storm Safety 1 Lightning can strike even when a thunderstorm is 5 to 10 miles away. 2  About 400 people are hit by lightning each year. 3  About 3 to 10 children and teens die from lightning strikes each year.
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James Garfield As President, Garfield strengthened Federal authority over the New York Customs House, stronghold of Senator Roscoe Conkling, who was leader of the Stalwart Republicans and dispenser of patronage in New York.
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What is the difference between lightning and thunder? In fact you can measure the distance from you to the lightening in this way: for each second delay between seeing it and hearing it, the lightening bolt is approximately 300 meters, or 1000 ft away. Thunder is merely the rumbling sound that lightning creates.
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Weather Library > Lightning Safety: The Myths and the Basics Lightning doesn't always strike the tallest object. Lightning can reach far away from a nearby thunderstorm and strike ground. If you can see lightning or hear thunder, you are in an immediate danger zone for a lightning strike. Especially during the summertime, lightning activity can suddenly begin in areas of rain even if no lightning or thunder has yet occurred.
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How Does Thunder & Lightning Occur? Thunder occurs when energy from lightning heats and rapidly expands the air. The resulting sound wave gets heard as thunder. While lightning and thunder occur at roughly the same time, lightning travels at the speed of light, or at 186,000 miles a second, while thunder travels at the speed of sound, equivalent to one-fifth of a mile in one second. People see the lightning long before they hear the thunder.
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The Why Files Calculate the distance from lightning in miles or kilometers. Sound travels one mile every five seconds and one kilometer every three seconds. Therefore, if you want to find out how far you are from lightning, divide the number of seconds by 5 if you want the answer in miles and divide it by 3 if you want the answer in kilometers.
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Lightning Myths and Facts Fact: Lightning often strikes more than three miles from the center of the thunderstorm, far outside the rain or thunderstorm cloud. “Bolts from the blue” can strike 10-15 miles from the thunderstorm. Myth: Rubber tires on a car protect you from lightning by insulating you from the ground.
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The Science of Thunder The speed of sound through air at sea level is 758 mph (1,130 feet/second; 344 m/second) at 68° F (20° C). Thunder is exploding air occurring along the entire length of the lightning channel. An average thunderstorm produces thousands of mi/km of lightning channel during its lifetime.
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- No there is not, Heat Lightning is really just lightning in a distant storm. The reason you can't hear it is because the sound of thunder can travel approximately 25 miles. When light can travel a lot farther.
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How Far Away Is Lightning? For metric-system conversions, follow this method: Sound travels at about 340 m/s, so multiply the number of seconds you counted by 340, and you'll know how many meters away lightning struck. A three-second count, then, would place the lightning strike about 1,020 m away, or roughly 1 km.
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What makes the sound of thunder? Does lightning make noise? Thunder can be heard up to 25 miles away from the lightning discharge. At these distances, thunder sounds like a low rumble because the higher frequency pitches are more easily absorbed by the surrounding environment, and the sound waves set off by the lightning discharge have different arrival times.
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Can you calculate how far away lightning struck by thunder? NEXT PAGENEXT. It is possible to figure out how far away a lightning strike is with some simple math­. Sound travels through air at the speed of sound.. Officially, the speed of sound is 331.3 meters per second (1,087 feet per second) in dry air at 0 degrees Celsius (32 degrees Fahrenheit).
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The USS Scorpion Buried at Sea Lightning travels at the speed of light, about 186,000 miles per second. This means that you see lightning pretty much when it happens. 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. You can observe this for yourself.
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Planning ahead When thunder roars, go indoors. If you can hear thunder, you are close enough to be struck by lightning. There is no place outside that is safe from a lightning strike. Remaining indoors for 30 minutes after seeing the last lightning and hearing the last thunder will eliminate the risk at the end of storms.
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lightning strikes a tower 4 km away. how long after the strike will you hear the thunder? the speed of sound is 344 m/s During a thunderstorm, you see lightning before you hear thunder because, a-.the thunder occurs after the lightning b-.the thunder is farther away than the ... April 16, 2007 by Fahad. physics. you see lightning and then count 4 seconds till you hear the thunder.
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Thunderstorms & Lightning: The Underrated Killers! Heat Lightning: Lightning from a thunderstorm that is too far away to be heard. Lightning Facts: - Lightning causes an average of 80 deaths and 300 injuries each year. - The energy from one lightning flash could light a 100 watt light bulb for more than 3 months.
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Lightning Distance Calculator Enter the number of seconds from the flash of lightning until you hear the start of the thunder rumble. If you wish, you can adjust the speed of sound to your preferences; however, under most situations, our default should be used. You should not deviate above 1200 or below 1100 feet per second.
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The Why Files Sound travels one mile every five seconds and one kilometer every three seconds. Therefore, if you want to find out how far you are from lightning, divide the number of seconds by 5 if you want the answer in miles and divide it by 3 if you want the answer in kilometers.The delay between when you see lightning and when you hear thunder occurs because sound travels much more slowly than light.herefore, if you want to find out how far you are from lightning, divide the number of seconds by 5 if you want the answer in miles and divide it by 3 if you want the answer in kilometers. The delay between when you see lightning and when you hear thunder occurs because sound travels much more slowly than light.
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What is lightning? For every 4 seconds between the flash and the rumble, the thunderstorm is 1 mile away. Here is a slow motion video of lightning. Watch closely and you will see the step leaders heading down from the cloud. These are rarely visible and last only a few thousandths of a second.