When it rains, there will be thunder, and when it rains, will it rain?

Not necessarily, I don't know much about it, so I'll check it out for you: thunder and lightning are a majestic and somewhat intimidating natural phenomenon accompanied by lightning and thunder. Thunder and lightning are generally generated in cumulonimbus clouds with strong convection, so they are often accompanied by strong gusts of wind and heavy rain, sometimes hail and tornadoes.

The top of the cumulonimbus cloud is generally high, up to 20 km, and the upper part of the cloud often has ice crystals. Processes such as the attachment of ice crystals, the breaking of water droplets, and the convection of air cause electric charges to be generated in the clouds. The distribution of charges in the cloud is more complex, but in general, the upper part of the cloud is dominated by positive charges and the lower part is dominated by negative charges.

As a result, a potential difference is formed between the upper and lower parts of the cloud. When the potential difference reaches a certain level, an electric discharge will be generated, which is our common lightning phenomenon. The average current of lightning is 30,000 amps, and the maximum current can reach 300,000 amps.

The voltage of lightning is high, about 100 million to 1 billion volts. A moderate thunderstorm can reach 10 million watts, which is equivalent to the output of a small nuclear power plant. During the discharge, due to the sudden increase in temperature in the flash channel, the volume of air expands sharply, resulting in a shock wave that causes a strong thunderclap...

Although it was an excerpt, I was the first. Don't plagiarize me, oh oh.

No, but I like to learn more about geography and nature.

Not necessarily, depending on whether it's summer.

Thunder doesn't have to rain. The cause of thunder is that the clouds in the sky have positive poles and 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. <

Thunder doesn't have to rain. The cause of thunder is that the clouds in the sky have positive poles and 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. The cause of rain is that the water on the surface of the land and the sea evaporates into water vapor, and the water vapor rises to a certain height and becomes small water droplets when it is cold, and these small water droplets form clouds, which collide with each other in the clouds and merge into large water droplets, and when it is too large for the air to support, it falls from the clouds and forms rain.

Not necessarily.

Thunder will also occur when it rains in spring, haven't you heard of spring thunder? It rains and does not thunder in winter, the reason: thunder is a large current flowing in the air requires two conditions, one is that the clouds accumulate a large amount of charge, the other is that the discharge path is smooth, there are two reasons for not thundering in winter 1 is that the snow is more in winter, and the cloud generates charge mainly because of the updraft and its friction, there are few updrafts in winter, so the charge accumulation is not much 2 is that the air humidity in winter is not as large as in summer, and the humid air is easy to conduct electricity, so the clouds in winter are not easy to discharge.

Thunder and lightning are the phenomenon of electrical discharge in thunderstorm clouds. There are certain conditions for the formation of thunderstorm clouds, that is, there must be sufficient water vapor in the air, there must be a power to make the moist air rise, and the air must be able to produce violent convective movements. In spring and summer, due to the influence of the warm and humid airflow from the south, the air is humid, and at the same time, the solar radiation is strong, the air near the ground is constantly heated and rises, and the cold air in the upper layer sinks, which is easy to form strong convection, so there are many thunderstorms and even hail.

In winter, due to the control of the continental cold air mass, the air is cold and dry, and the solar radiation is weak, the air is not easy to form violent convection, so thundershowers rarely occur. However, sometimes the weather is warm in winter, and the warm and humid air is stronger, and when the strong cold air in the north occasionally goes south, the warm and humid air is forced to rise, and the convection intensifies, thundershowers will be formed, and the so-called "thunder winter" phenomenon appears. Meteorologists also say that the generation of thunderstorms does not depend on the temperature itself, but on the distribution of the temperature up and down.

In other words, although the temperature is not high in winter, if the temperature difference between the upper and lower reaches a certain value, strong convection can also be formed, resulting in thunderstorms. Winter thunderstorms are rare in China, but they are common in winter in Toronto, Canada.

When the air is extremely unstable, it is easy to have a strong upward convective movement, and form a towering cumulonimbus cloud, the cloud is full of water vapor rushing up and down, it will produce static electricity, the upper end of the cloud will produce a positive charge, the lower end of the cloud will produce a negative charge, and the ground is a positive charge, then, there is air as an insulator between the positive and negative charges, if the voltage difference between the positive and negative charges is large enough to break through the air of the insulator, so that the air expands in an instant**, heats up and glows, and the light is lightning, expanding** Making a loud noise is thunder.