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Yes, it's a precursor to rain.
In the first stage of a thunderstorm, an updraft is formed, which sends warm, moist air into the air. The rising air is cold, and the water vapor condenses and turns into clouds. As the air currents continue to rise, the clouds accumulate higher and higher, reaching the colder altitudes, and the water droplets in the clouds become larger and heavier.
Some freeze into snow or hail, and some water droplets get bigger and bigger, and they fall. The cause of the static electricity generated by the undulating air currents in the thunderstorm clouds is not fully understood, but may be partly due to the friction and decomposition of moisture. The positive charge is at the upper end of the cloud, while the negative charge attracts the positive charge on the ground below.
The air between the clouds and the ground acts as an insulator that, for a short time, prevents the passage of electric currents that are trying to balance the charges at the poles. Lightning occurs when the voltage of the two poles is so large that it can break through the insulating air, and in this way the charges balance each other. In some thunderstorms, the electrostatic voltage can be as high as several million volts!
Lightning can occur in a cloud block or in the middle of two clouds, some top-down and some bottom-up, between the cloud and the ground. Worldwide, lightning strikes the Earth an average of 100 times per second. In a thundercloud, the two parts of the positive and negative charges are attracted to each other, like magnets.
And the insulator that prevents both is air. Most lightning bolts are two in a row. The first blow is called a leading blitz, and it is an invisible stream of electric air that descends straight to the ground.
This stream of live air acts like a wire, creating a path for the second stage of the current. The moment the lead approached the ground, a counter-strike current jumped up the lead. Then there was visible lightning and audible thunder.
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Yes, that's how Thunderbolt came about.
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The reason for the formation of thunder is that clouds with a positive charge come into contact with clouds with a negative charge, whereas thunder on a sunny day is because the clouds are very low and the range is small, and you happen to be out of that range, so all you hear is thunder and you can't see lightning.
Thunder: Thunder is a natural phenomenon, when it rains, some clouds in the sky have positive poles and some negative poles. When two clouds collide, lightning strikes, and at the same time emits a lot of heat, heating and expanding the surrounding air.
The air that is heated and expanded in an instant will push the surrounding air, causing a strong **-type vibration. This is thunder. 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. However, sometimes thunderclouds are formed in winter when the temperature is high, and thunder and lightning are generated, and rain and snow occur.
Convection is particularly strong and can also form hail, which can produce the so-called "winter thunder". Knowing these reasons, it is not surprising that "winter thunder" strikes.
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Because when there are clouds in the sky, it is easy to produce abundant incidental ions, and when the clouds are close, it will thunder!
Generally, the sun is very strong outside, and it will not rain heavily!
It's going to rain instantly!
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Thunder, lightning, and rain all occur in thunderstorm clouds, but their impact is different. In the center of the thunderstorm cloud, thunder, lightning and rain were intense. In the area on the edge of thunderstorm clouds, there is often loud thunder and small raindrops.
If there are no thunderclouds, but if you are in the range where you can hear thunder, you will only hear the sound of thunder and it will not rain. <
Thunder, lightning, and rain all occur in thunderstorm clouds, but their impact is different. In the center of the thunderstorm cloud, thunder, lightning and rain were intense. In the area on the edge of thunderstorm clouds, there is often loud thunder and small raindrops.
If there are no thunderclouds, but if you are in the range where you can hear thunder, you will only hear the sound of thunder and it will not rain.
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Thunder during a thunderstorm 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 will be released in an instant, which will heat and expand the surrounding air to a high temperature of 30,000 degrees Celsius. At the same time, the surrounding air is pushed to cause the air to vibrate, and the sound 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 humid and the clouds must be large enough for lightning to occur.
Things to pay attention to in thunderstorms:
1. Try not to be outdoors, and avoid standing in high places, under trees, under billboards and other places that are easy to attract lightning.
2. Do not swim or play in open water, pools, beaches, etc., to avoid being struck by lightning.
3. Do not use **, TV, computer and other electrical equipment indoors, and do not call**, so as not to be struck by lightning.
4. Avoid driving in thunderstorms, if you must drive, you should close the windows, turn off the stereo and air conditioning equipment on the car.
5. Avoid contact with metal objects, such as iron railings, iron doors, iron bridges, etc., to avoid being struck by lightning.
6. If you are trapped outdoors in an open field, do not hide under a separate big tree or in the woods, you should find a low-lying place, squat down, try to reduce the body area, and avoid becoming the target of lightning strikes.
7. If someone around you is struck by lightning, you should immediately call the first aid** and take corresponding first aid measures, such as artificial respiration, heart massage, etc. <>
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Thunder is produced by the contact of a positively charged cloud with a negative charge, and there are also clouds in the summer, and when a positively charged cloud comes into contact with a negatively charged cloud, thunder is produced, but the clouds are generally smaller in summer, so thunder and lightning are rarely seen.
Thunder is a natural phenomenon, when the clouds of the positive pole and the negative pole collide together, lightning will be emitted, and a lot of heat will be released at the same time, so that the surrounding air will be heated and expanded, and the air that is heated and expanded in an instant will push the surrounding air, causing a strong ** type vibration.
In case of thunderstorms, it is strictly forbidden to stay on the top of the mountain or high hills, and it is also important not to continue to pedal to a high place to watch the rain, not to take shelter under big trees, near telephone poles, and not to walk or stand in an open field.
In the event of thunder or rain, take shelter in a low-lying area as soon as possible, or seek shelter in a house or dry cave if possible.
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It's because of the friction of the ionosphere! This is high school knowledge!
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It's just thunder on a sunny day, this is normal, right?
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When dust, ice crystals and other substances in the air tumble and move in the clouds, they go through some complex processes to make these substances carry positive and negative charges respectively. As a result of the movement, a heavier substance with the same charge will reach the lower part of the cloud (usually a negative charge), and a lighter mass substance with the same charge will reach the upper part of the cloud (usually a positive charge). In this way, the convergence of homogeneous charges forms some charged centers, which are formed when the air between the charged centers of the opposite sex is broken down by its strong electric field"Inter-cloud discharge"(i.e. lightning). >>>More
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It's obviously the scattering of the atmosphere.
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