What is the reason why it feels like clouds collide and thunder in the summer, but there is no sound

Suffice it to say, it's very hot and annoying all over the country. At this moment, the weather that everyone wants most is a rainy day, and then cool down to escape the summer. However, on rainy days in the middle of summer, most areas are generally full of heavy rain and thunderstorms, and the major flood disasters such as this one in Henan Province are classified as a very rare situation.

When it comes to thunderstorms, many friends have a question, that is, in summer, there are generally so many thunderstorms, and the thunder is very loud, but in winter, there are very few such things, what is the situation? Is it said that there is no thunder and lightning in winter? In fact, this is a very normal weather phenomenon, and to remember why, we must gradually talk about the principle of thunder and lightning.

In fact, the lightning we see is the polycondensation reaction of hydroxide ions in the state of metal materials, which releases radio waves, which is actually a violent discharge phenomenon caused by the collision of clouds of positive and negative ions in the air. The great kinetic energy generated by the discharge phenomenon causes the surrounding air to be quickly heated and deformed, and the rapidly expanding volume promotes the surrounding gas to cause explosive vibration sounds, which is thunder.

Due to the high surface temperature and the abundant water vapor, the volatilization is obvious, resulting in a rapid increase in water vapor, but because the closer to the road surface, the higher the temperature, the smaller the standard air pressure, so there will be strong cold air from the height down the fitness exercise. The twin cyclones finally met, constituting a strong convective motion. As a result, there are a lot of cumulonimbus clouds in the sky, and the relative height is relatively low (which is why the clouds are lower in summer) and the summer tends to rain a lot, because it is basically cumulonimbus precipitation, which is small and faster.

The lightning strike is caused by the electrostatic induction caused by the friction of the left and right strong convection, this kind of strong convection only exists in the cumulonimbus cloud, due to this electrostatic induction, causing the upper end of the cumulonimbus cloud to accumulate a large number of negative charges, and the lower side to hoard a large number of positive charges, because of the opposite sex attraction effect, this small raindrop will be very fine, supported by warm air, and stored in the air in the way of cumulonimbus cloud.

However, this kind of thing is not very common in China, because the temperature is very low in winter, most of the gases cannot produce thermal convection, and there are no conditions to produce cumulonimbus clouds, and lightning strikes cannot be caused. Although there are other influencing factors, such as the radiation source of natural light, the main one is that it is easy to form cumulonimbus clouds, which in turn have a standard of thermal convection, which is normal for lightning and lightning, but not in winter. In fact, not only in winter, but also in some special weather in midsummer, there is no way to produce it, such as the seaside, where there are often strong typhoons.

It is often in mountainous areas, where there is not only thunder, but also loud and lethal.

Convective movements are more active in summer, and clouds containing water vapor do not collide until they gather in the air, because these clouds are very heavy in summer. In winter, the convective movement is weaker.

The main reason is that lightning generally only occurs in the case of air convection, and it must be relatively humid.

Mainly because the weather is drier in winter and the density of clouds is low, so collisions do not produce thunder.

Because the climate is cold in winter and the temperature is relatively low, but the temperature in summer is relatively high, it will be affected by thermal expansion and contraction.

This is because the clouds in summer have a lot of moisture, but in the winter, there is not a lot of moisture in the clouds, and the cold air temperature is particularly low.

This is because in winter, there is not enough moisture in the air, so there is no way to thunder at all.

It is important to know that there are specific conditions for lightning and thunder to occur, and it is clear that the air is not easy to form convection when it snows in winter, resulting in snow in winter but not lightning and thunder.

Mainly because the weather is hotter in summer and there is plenty of moisture, which makes thunderstorms more likely, while in winter the weather is drier and convection is not easy to form in the air, so thunder is rare.

Because the weather is hot and there is plenty of moisture in summer, thunderstorms are more likely.

Thunder is a large amount of electric current flowing through the air, two conditions are required, one is that the clouds accumulate a large amount of charge, and the other is that the discharge path is smooth, and the snow does not thunder, I think there are two reasons.

1 is that it snows a lot in winter, and clouds produce charge mainly because of updrafts and its friction, and there are very few updrafts in winter, so there is not much charge accumulation.

2. The humidity of the air in winter is not as great as in summer, and the humid air is easy to conduct electricity, so the clouds in winter are not easy to discharge.

Lightning is a phenomenon of electrical discharge, and it mainly comes in two forms:

1.When there are two types of electric charges in the cloud, the phenomenon of electrical discharge occurs in the cloud, which makes it easier to produce thunder, which often occurs in convective weather in summer.

2.When there is only a positive charge in the clouds and only a negative charge on the ground, there will be a tree root-like thunderbolt, which can occur all year round, and this kind of lightning can easily kill people.

Thunder must be associated with lightning because after lightning penetrates the air, the high temperature causes the air to expand rapidly, resulting in a deafening shock wave. The current of lightning can be as high as 30,000 to 300,000 amps, and the temperature of the air passing through the lightning will be heated to 8,000 to 30,000 degrees, emitting a dazzling white light. Due to the sudden release of energy, lightning can damage trees and even houses.

Because there are certain conditions that need to be met for thunder. The trajectory of abundant water vapor and strong convection is difficult to form due to cold winters and low temperatures.

In summer, the temperature is high, the air is humid, and the air circulation is fast, which is easy to accelerate the meeting of positive and negative voltages in the air to form thunder, while it is difficult to have the conditions for the formation of thunder in winter, so there will be no thunder in winter.

The reason why there will be thunder in summer when the clouds are thick, but not in winter is that the climate is cold in winter, the weather is dry, there is no strong air flow to rise, there is good insulation, the thickness of the cloud layer is not thick, and the volume is not large, so the conditions for thunder cannot be reached in winter

Thunder occurs in the summer when the clouds are thick, but not in the winter because it is a natural phenomenon, and it only thunders when it rains, but there is no rain in the winter.

In winter, it only snows, and it rarely rains, so you don't hear thunder. It is precisely because of the dark clouds and humid air in the summer that thunder and lightning are formed.

You didn't go to nature in elementary school or physics in middle school, right? How can you say that thunder and lightning are like this?

Lightning is actually a type of electrical discharge between clouds or between clouds and the ground.

When a certain amount of energy (static electricity) accumulates in the clouds, a large-scale discharge occurs, and we hear that thunder is the sound that occurs when an electric discharge occurs, and lightning is an electric spark that appears.

In ancient times, Benjamin Franklin used a kite to do experiments to attract lightning, thus proving that lightning is a discharge phenomenon.

In summer, the sun shines directly on the earth, and the temperature difference is extremely large, resulting in a violent flow of air, forming a large number of clouds with huge energy, which is easy to form thunder and lightning weather; In spring, autumn and winter, there is less strenuous movement of clouds, and it is not easy to cause a large number of charged clouds, so it is not easy to have thunder and lightning weather in these three seasons.