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Thunder and lightning are the phenomenon of electrical discharge in thunderstorm clouds. The formation of thunderstorm clouds generally requires two conditions, sufficient water vapor and violent convective movements. In winter, due to the cold and dry air and weak solar radiation, convection is not easy to form in the air, so thunder and lightning are rare.
But sometimes the temperature is high in winter, the warm and humid air is stronger, when the north occasionally has a strong cold air to the south, the warm and humid air is forced to rise, and the convection intensifies, it forms thunderstorm clouds, produces thunder and lightning, and there is rain and snow weather, the convection is particularly strong, and hail can also be formed, which will produce the so-called "winter thunder" weather phenomenon. Since the middle of January, the warm and humid airflow has been unusually strong, and the temperature is obviously high, with the highest temperature on the 14th, the highest in the same period in history, and the stronger cold air in the north on the 17th went south, and the two converged, and not only snowed in the sky, but also thundered.
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Hello dear, thanks for waiting, for you to find out the explanation of why thunder: thunder is a discharge phenomenon in the atmosphere. When it rains, the clouds are thick and the air is humid.
At this time, when the charge is neutralized, a large amount of light and heat is released instantaneously, which heats and expands the surrounding air to a high temperature of 30,000 degrees Celsius. At the same time, the surrounding air is pushed to make the air vibrate, and the muffled sound of Sun Pat produced at this time is thunder. When two clouds with a different charge meet, or when a cloud with a different charge is close to the earth, the phenomenon of discharge, which is what we see as lightning, occurs.
The air is very humid and the clouds must be large enough to be the necessary conditions for the occurrence of thunder and electricity.
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Because the clouds in the sky are like two positive and negative poles, when these two positive and negative pole clouds collide together, they will emit terrifying lightning at this time, and at the same time as the lightning is emitted, it will release a huge amount of heat, which will make most of the surrounding air heat and expand. At this moment, the heated and expanding air will naturally push the surrounding air that is not heated and expanded, and then cause that strong explosive vibration.
When the air around us is extremely unstable, then a strong upward convective movement will occur, and then the formation of the kind of towering cumulonimbus clouds that we are familiar with, and the clouds will also be covered with the kind of water vapor rushing up and down, which will then cause the generation of static electricity, which is also one of the necessary conditions for the formation of thunderclouds.
Precautions for thundering.
1. When thunder, the first thing to do is to close the doors and windows to prevent lightning from hitting indoor objects directly or spherical lightning from drifting into the room.
2. In case of thunderstorms, people should not stand under the bulb, and the power supply of household appliances needs to be cut off to avoid damage to electrical appliances.
3. During thunderstorms, try not to call, answer or use** the Internet, at this time, you should unplug the power supply and the metal wires that may introduce lightning such as the ** line and the TV closed circuit.
4. Leave the metal water pipe and the sewer pipe connected to the roof indoors.
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