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Just for fun: If you see a clap of thunder, call a journalist! More seriously, if you see a flash of lightning and hear a clap of thunder at almost the same exact time, it means that the electrical discharge that generated both the lightning and the thunder is very close to you, and you should take precautions immediately to avoid injury to yourself. Usually, the most practical precaution is to seek shelter in a building protected by lightning rods or a metal vehicle that will conduct electricity around you more readily than through you!

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10y ago

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What does it mean if you see a flash of thunder and clap of thunder at almost the exact same time?

It means your too close to the lightning!


Why do sometimes hear thunder at about the same time you see flash of lightning but other times you hear thunder after the flash?

If you hear the thunder almost at the same time as the lightning flash - the storm is directly overhead. Usually - the sound of thunder arrives a few seconds after the lightning, because light travels much faster than sound.


Is thunder heard before the flash of lightning?

not if you are standing far enough away and not at all the sound of the lightning is thunder but if you were standing directly underneath it the sound would come at the exact moment of the light


Why do you see thunder after you see the flash of lightning?

You don't see thunder. You hear thunder. You hear thunder after seeing the lightning because light travels faster than sound. The further the storm away is, the bigger the time between when you see the lightning and hear the thunder.


Does thunder have a flash?

Thunder is the sound produced by lightning as it rapidly heats and expands the air. It is not a flash like lightning, but rather the result of the shock wave created by the sudden expansion of the air.


What is flash of lightning and the thunder that follows?

thunderstorm


How is thunder produced and how far away does the lightning strikes if the thunder is heard 15 seconds after the lightning is seen?

Thunder - is the result of a lightning flash. The flash causes the surrounding air to move away from the source at 300 metres/second. An approximate calculation for the relationship between the lightning flash to hearing the thunder, is 5 seconds per mile.


Does thunder cause lightning or does lightning cause thunder. Explain?

Lightning causes thunder. Lightning is a massive electrical discharge that you see as a bolt or flash of light. Thunder is the sound caused when the lightning superheats the air, creating a shockwave.


Why are you hearing thundering after lightning?

A lightning flash travels at the speed of light. The sound of thunder travels much slower. Therefore, we see the flash before we hear the thunder.


Why does thunder ussually occur during storms that have lightning flashes?

The thunder is the sound of lightning but you only hear the thunder after the flash because lightning is faster than the speed of sound.


What is The loud crashing or rumbling noise heard after a flash of lightning?

Thunder is the loud crashing or rumbling noise heard after a flash of lightning. This happens because lightning heats the air around it, causing it to rapidly expand and create a shock wave that we hear as thunder.


What is the The loud crashing noise heard after a flash of lightning?

Thunder