Why does thunder only hit in the summer? Why does it thunder in the summer

Why snow rarely thunders in winter, and thunder when it rains in summer. 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.

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.

Why does thunder occur in summer: Thunder occurs because the clouds accumulate a large amount of electrical charge, so thunder and lightning are formed. Thunder must be associated with lightning, due to the deafening shock wave caused by the rapid expansion of the air caused by the high temperature after the lightning penetrated the air.

It is because of lightning that there is rumbling thunder.

Extended Materials. Thunder is a natural phenomenon, and 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 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.

Therefore, when there are many thunderstorms, even hail, and the air is extremely unstable, it is easy to have strong upward convective movements, and the formation of towering cumulonimbus clouds. When the clouds are filled with water vapor rushing up and down, static electricity is generated, and 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 will have a positive charge. Then, there is air as an insulator between the positive and negative charges, and if the voltage difference between the positive and negative charges is large enough to break through the air of the insulator, the air expands instantly**.

Precautions when thundering: 1. When thundering, the first thing to do is to close the doors and windows to prevent lightning from hitting the room 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 should be cut off to avoid damage to electrical appliances.

3. During thunderstorms, try not to call, answer or use the Internet, and unplug the power supply and the metal wires that may introduce lightning such as the closed line of the TV and the TV.

The phenomenon of lightning and thunder generally occurs often at night in summer, and in winter there is almost no such situation, is there no thunder in winter? Actually, no, there will be thunder in winter, but it is very rare, which starts with the cause of thunder.

1. A large amount of water vapor

A very important condition for thunder is to have a large amount of water vapor, in summer the sun temperature is very good, there are a lot of substances on the ground water evaporation to form water vapor, is the air becomes very humid, humid air clouds are easy to put on the ground, produce the phenomenon of thunder and lightning, and in winter the air is relatively dry, not easy to produce the phenomenon of thunder.

2. Updraft

In summer, due to the evaporation of a large amount of water vapor, an upward air flow is formed, and these air currents encounter cold high-altitude clouds, resulting in friction and collision, forming clouds that can be discharged, and when the conditions for discharge are reached, these thunderstorm clouds will form a discharge phenomenon with the ground, making a huge thundering sound. In winter, the weather is colder, and there are few updrafts, so this is also the reason why it is not easy to form thunder and lightning in the clan.

3. Convective movement

When the air has a violent convective movement, it is easy to produce trillions between the clouds, and the thunderstorm clouds are formed, and these conditions are well met in summer, so thunderstorms often occur, when the weather is warm in winter, and the cold air meets, forming a strong convection, it may produce thunderstorms, and it is not necessarily thunder and rain when it is very hot in summer, thunderstorms mainly depend on the temperature and movement between the airflows.

In spring and summer, due to the influence of the warm and humid airflow from the south, the air is humid, and the solar radiation is strong, and the air near the ground is constantly heated and rises, while the upper cold air sinks, which is easy to form strong convection up and down, so that thunderstorm clouds are often generated, and thundershowers and even hail can easily occur.

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 strong upward and downward convection, so it is difficult to form thunderstorm clouds, and it is difficult to produce thundershowers, let alone hail. However, in the winter of some years, in a certain period of time, when the warm and humid air is strong and the weather is warm (the temperature in the place of the incident is often above 0), and there is strong cold air in the north to the south, the cold and warm air meet, and the light weight of the warm and humid air is violently lifted, resulting in the instability of the atmospheric structure and the intensification of the upper and lower convection, then it is possible to form thundershowers or thunderstorms. Hail can also form when the warm and humid air currents are particularly strong and the air is particularly convective up and down.

Thunder and rain are a natural phenomenon. Thunder is because the clouds in the sky have opposite charges, and when the two charges meet, they will be discharged, releasing a huge amount of energy, from which we will hear loud noises and see lightning, which is what we call thunder. When it rains, because the water vapor in the sky continues to accumulate, when it encounters fine particles in the sky, the water vapor will accumulate on the fine dust, and when the gravity is greater than the buoyancy of the water vapor in the sky, the water droplets will fall and form rain.

When rivers, rivers, lakes, and seas are irradiated by the sun, the water turns into water vapor, rises and turns into small droplets, and finally turns into clouds.

The small water droplets and Xiaoice crystals that make up the cloud are supported by the air flow below, and the updraft continuously transports water vapor from below into the cloud.

The small water droplets and Xiaoice crystals in the cloud collide with each other in motion, and the volume will increase. The water droplets in the lower layer of the cloud slowly become larger, and as the volume of the ice crystals in the upper layer of the cloud increases, they fall between the water droplets in the lower part of the cloud. The water droplets will get bigger and bigger, and when they are too big for the updrafts to support them, it will rain.

In spring and summer, due to the influence of the warm and humid airflow in the south, the air is humid, and the solar radiation is strong, and the air near the ground is constantly heated and rising, while the upper cold air sinks into the world, which is easy to form a strong upward and downward convection, which often generates thunderstorm clouds, and it is easy to have thundershowers and even hail.

Thunder is a natural phenomenon, when it rains, some clouds in the sky are positive, and some are negative. 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. When it is thundering and raining, it is strictly forbidden to stay on the top of the mountain or in the high hill area, 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, but to hide in a low-lying place as soon as possible, or to find a house or dry cave to take shelter as much as possible.

In summer, due to the influence of the warm and humid airflow in the south, the humidity of the air is higher, and because of the strong solar radiation in summer, the air near the ground is constantly heated and rises and the rotten matter forms a strong rise, the higher the temperature, the faster the rise rate of the hungry liquid, and at the same time, the cold air in the upper layer sinks, and it is easy to form strong convection, so there will be more thunderstorms in summer, thunderstorms, and even hail.

The accumulation of charge at the base of strong clouds and the deterioration of the air are two conditions for the occurrence of lightning. In addition to sufficient water vapor in the air, the formation of thunderstorm clouds requires a humid and hot air rising speed in order for the air to produce violent convective movements.

In summer, due to the influence of the warm air flow from the south, the air will become humid, and at the same time, the solar radiation is strong, and the ground air is constantly heated and rises, and the cold air in the upper leaseback layer sinks, which is easy to form strong upward and downward convection, which often generates thunderstorm clouds.

Thunder is a natural phenomenon, and certain conditions must be met 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 coarse air rise in the wet air, and the air must be able to produce violent convective movements.

In winter, controlled by the continental cold air mass, the air is cold and dry, and the solar radiation is weak, so the air is not easy to form strong upward and downward convection, so it is difficult to form thunderstorm clouds.