Lightning and thunderstorm - Finnish Meteorological Institute
How does this happen if thunder and lightning come from the same this relationship between seeing lightning and hearing thunder, you can. Did you know that you can figure out how far you are from a storm by watching lightning and listening for thunder? Lightning is over 40, degrees Fahrenheit. Thunder cannot hurt anybody (except by the sound-pressure shock if the lightning hits very close), and the risk of.
Thunder cannot hurt anybody except by the sound-pressure shock if the lightning hits very closeand the risk of being struck by lightning is far less than that of being killed in a car crash.
Most lightning occurs as cloud flashes, which are harmless on the ground. Most of the flashes that do strike the ground cause little or no damage or harm. Lightning often chooses a well-exposed target on the ground, usually a high well-conducting object standing alone.
Thunder vs. Lightning
Lightning strikes lone trees on high ground, so a wise thing would be to not seek a shelter under a tree. If you are in the open and find no shelter, make yourself low by crouching down, keeping the feet together. Indirect dangers from thunderstorms are lightning-ignited fires, overvoltages in electric and telecommunication lines, and gusts of strong wind.
Lightning strikes aircraft, but the people inside are safe because it runs around the outside. Lightning strikes tall buildings, but they have lightning conductors to carry the electricity harmlessly to the ground.
The safest place might be in a car. How far away is the thunderstorm? Light travels kilometres per second, so the flash can be seen immediately.
Thunder starts at the same time, but its sound travels one million times more slowly, about metres per second. The distance can be estimated by counting the time interval between the lightning flash and the start of the thunder.
If you count seconds and divide them by three, you get the distance in kilometres. Thunder is rarely heard at a distance of more than 20 km. Thunder is the sharp or rumbling sound that accompanies lightning. It is caused by the intense heating and expansion of the air along the lightning channel.
Lightening bolt striking the Earth's surface. Wikimedia Commons During a thunderstorm, you see a bright flash of lightning. Multiple seconds later, you hear the loud rumble of thunder.
How does this happen if thunder and lightning come from the same place and occur at the same time?
The answer involves the speed at which sound and light travel. Light is the electromagnetic radiation within a certain portion of the electromagnetic spectrum. Lightning causes light in the form of plasma, which is created by the electrostatic discharge that take place between the electrically charged regions of two or more clouds, or the electrically charged regions of a cloud and the ground.
The term "light" mostly refers to visible light, which is responsible for the sense of sight in the human eye. Wavelengths around nano-meters make up visible light. Light travels atmeters per second , mphso in theory, nothing moves faster than the speed of light. This is significantly slower than the speed of light.Why Lightning and Thunder Occur in clouds (In Hindi)
This indicates that the reason why you would see lightning first in a thunderstorm is because the visible light waves formed by the plasma in the lightning travels to your eyes much faster than the rumble or crack of thunder reaches your ears. Therefore, when you hear rumbling thunder, the lightning bolt was far away because of the effect of dispersion, which is the action or process of distributing things over a wide area. When you hear a very loud crack or boom, this means that the lightning bolt was near your location.