Why thundershowers are common in summer

In the afternoon or evening of summer, people often feel unusually muggy, and after a while, thunder rumbles and rain pours down; However, it was not long before the clouds cleared and the rain stopped again, which is a weather phenomenon we often encounter in the summer - thundershowers.

In summer, there is a lot of water vapor in the air, and when the ground temperature rises under the sun, the air rises upward. When water vapour is pushed into the sky more than 1 kilometer away, large Cumulus clouds are formed, which are often the precursors of Cumulonimbus clouds. If the air continues to rise, the cloud masses of Curocumulus will expand and become Cumulus congestus.

At this time, if the right conditions are met, Cucumulus congestus will continue to develop upwards and rise to an altitude of more than 7 km, forming Cumulonimbus. At this height, the top of the cloud expands in all directions due to the encounter with a stable layer of air or the lack of force for the upward extension of the cumulonimbus cloud. Before a thundershower, we often see dark clouds in the sky thicken and expand quickly, covering the entire sky in a very short period of time.

In a thick cumulonimbus cloud, a large amount of water vapour, small water droplets, and ice crystals are hidden, some of which increase in size as the cloud grows, and when the updraft is unable to hold them, it descends to form showers.

Why are there so many thundershowers in summer? It turned out that thundershowers were caused by hot weather. When the temperature is high in summer, the hot air rises to the sky with water vapor, and it becomes. When two clouds with different charges collide, a thunderstorm occurs.

The above is the first, and the second is that the weather now has periodic changes, such as more rainy weekends than weekdays. For example, thundershowers are prone to occur in summer evenings, which should also be the reason.

Thunder storm. This is because the weather is very hot in summer, and the air has strong convection in local places, causing a lot of dampness and heat.

The air rises violently, causing cumulonimbus clouds.

formed. In summer, there is a lot of water vapor in the air, and when the temperature rises under strong sunlight, the water vapor is pushed high into the air by the strong rising air, forming large cumulonimbus clouds.

Cumulonimbus clouds contain a lot of water, including small droplets and ice crystals in addition to water vapor. They grow in size as the cloud grows, and when the updrafts are unable to hold them, they fall to the ground, forming thundershowers. Lightning occurs due to the strong thermal convection that produces cumulonimbus clouds, which cause severe disturbances in cumulonimbus clouds.

And because the cumulonimbus clouds move one after the other, the amount of rainfall varies greatly, and thundershowers are formed. In summer, after noon, the air temperature is highest on the continent, and the upward movement is strongest at this time. Therefore, thundershowers mostly occur in the period from late afternoon to early evening.

We know that when it rains, there must be clouds. Clouds are formed by the condensation of water vapor from warm, moist air close to the ground when it rises and cools. When the small water droplets or ice crystals in the clouds gradually become larger, the air cannot support it, and it rains when it falls.

It can be seen that there must be two conditions for rain: first, there must be humid warm air; The second is that the air should have a strong upward movement. In summer, the southeast wind blowing from the sea often blows in our country, and the sea is wet.

The air is constantly coming to the land. At the same time, summer, when the sun hits the ground, is hotter than any other season, and the air close to the ground is also the hottest, and it is easy to have a strong upward movement. As a result, there are more times when it rains in the summer.

As far as I know, summer thunderstorms are also common because strong thermal convection only produces cumulonimbus clouds in the summer.

Thunderstorms are particularly frequent due to the influence of air currents in summer.

Thunderstorms are caused by the heat of summer, and the air is locally produced by strong convection, and a large amount of hot and humid air rises violently, forming cumulonimbus clouds.

In the afternoons and evenings of summer, it is often muggy, and there are often sudden thunderstorms, lightning flashes, heavy rains, and the weather becomes magical. But after a while, the thunder faded away, the black clouds disappeared, and the blue sky and white clouds contrasted with each other, which seemed quiet and beautiful, and the air was fresh, which is a weather phenomenon that we often encounter in summer - thunderstorms. In summer, there is a lot of water vapor in the air, and the ground is illuminated by the strong sun, and as soon as the temperature rises, the air rises.

Water vapor is transported by strong rising air to 1 2 km above the air, forming a large cumulus cloud. The air continued to rise, and the Cumulus cloud expanded very thickly, forming Cumulus congestus.

At this time, if the right conditions are met, Cucumulus congestus will continue to develop upwards and rise above 7 10 km to form cumulonimbus. If there is a stable layer of air or if the upward extension force is insufficient, the upper part of the cloud will expand in all directions. Before a thunderstorm, we often see the black clouds in the sky thicken and spread rapidly, and in a moment they spread to the entire sky.

Cumulonimbus clouds require strong convection in the conditions for occurrence and only occur in summer, so thunderstorms often occur in summer as well. In addition, due to the violent disturbance of cumulonimbus clouds caused by thermal convection, lightning phenomena often occur, in which the updraft is strong and weak, after the cumulonimbus cloud on one side, the cumulonimbus cloud on the other side moves, so the rainfall is large and small, the change is large, and it is a thunderstorm, so it is called a thunderstorm. On the streets, after noon, the air temperature is the highest, and the upward movement of water vapor is also the strongest, so thunderstorms mostly occur between the afternoon and the evening.

In the sea, the specific heat of seawater is large, and the air temperature near the water surface is not high during the day due to the fact that the solar energy it absorbs can be transmitted to the deep layer, and the entire air layer is very stable, and convective thunderstorms are not prone to occur. At night, the upper air cools, and the lower air is significantly warmer than the upper layer under the influence of the water surface, and the air is unstable and causes convection, forming thunderstorms. Most of the thunderstorms on the mainland are during the day, and most of the thunderstorms at sea are at night.

Thundershowers usually occur in the summer because the temperature is very high in the summer, there is a large amount of water vapor in the air, and the weather is easy to form convection, so the clouds in the sky accumulate, so it is easy to have thundershowers in the summer.

Thundershowers usually occur in summer because of the hot summer weather, the presence of a large amount of water vapor in the air, and the fact that strong convective weather is most likely to form in summer.

It's very hot in the summer, so it's easy to get a lot of rain, and it can also thunder. Once there is thunder, there is a very shocking feeling.

What else is the air pressure, temperature?

Causes: The formation of thunderstorms must meet certain conditions, that is, there must be sufficient water vapor leakage in the air, there must be the 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.

1. In summer, because the evaporation rate of water vapor from the sun directly hitting the ground is higher than that of other seasons, the air temperature close to the ground is relatively high, so there will be more water vapor, and the smaller the air density, the air will become lighter, and the lighter air will keep rising, with the increase of altitude, the temperature will gradually decrease, and the air will gradually become cooler and unable to accommodate abundant water vapor, and a part of the water vapor will form small water droplets, and clouds will appear in the sky.

2. Because the water droplets are too small, the hot air flow of the riser tube also drags them and pushes the suspended water droplets higher, and the clouds will accumulate more and more. When the small water droplets in the cumulonimbus cloud collide to form larger water droplets and begin to fall, the hot air rises from the ground and rushes into a strong net, and the friction between the two brings an electric charge, and the updraft carries a positive charge and the falling water droplets have a negative charge.

3. Over time, a large number of positive charges have been developed at the top of the Cumulonimbus cloud and a large number of negative charges at the bottom. When the water droplets in the cloud become larger and larger, the updraft heat cannot hold up, and when it falls from the cloud, the heat in the lower layer will become cold when it is rained, and it will fall directly from the ground, at which time the charge begins to discharge, accompanied by a rumbling thunder.

Because lightning is faster than thunder, people see lightning before they hear thunder, and sometimes thunder is caused by clouds and mountain peaks reflecting thunder on the ground.

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, and the upper cold air sinks and shouts, which is easy to form a 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, which 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. When the warm and humid air flow is particularly strong, and the air permeability and convection are particularly strong, hail may also form.

Summary. There are many reasons for the thunderstorms in summer, mainly due to climate change and the impact of the atmospheric environment. First of all, the temperature is higher in summer, and the surface heats up quickly, resulting in unstable air pressure.

When hot air meets cold air, convection currents are created, forming clouds, which in turn lead to thunderstorms. In addition, the higher humidity in summer and the increased water vapor content in the air also provide conditions for the formation of thunderstorms. In addition, summers are often affected by tropical cyclones and monsoons, and these weather systems also increase the frequency of thunderstorms.

In short, most of the thunderstorms in summer are the result of a combination of climatic factors.

There are many reasons for the high number of thunderstorms in summer, mainly due to the effects of climate change and the absence of silver slag in the atmosphere. First of all, the temperature in summer is high, and the surface is heated rapidly, resulting in unstable air pressure. When hot air meets cold air, convection currents are created, forming clouds, which in turn lead to thunderstorms.

In addition, the higher humidity in summer and the increased water vapor content in the air also provide conditions for the formation of thunderstorms. In addition, dry summers are often influenced by tropical cyclones and monsoons, and these weather systems also increase the frequency of thunderstorms. In short, most of the thunderstorms in summer are the result of a combination of climatic factors.

Can you tell us more about that?

The reason for the many thunderstorms in summer is due to the influence of climate change and the hidden caverns in the atmosphere. The high temperature makes the surface heat up quickly and the air pressure is unstable; Humidity increases, water vapor content increases; Tropical cyclones and monsoons also increase the frequency of thunderstorms. In general, most of the thunderstorms in summer are the result of the combined action of various climatic factors.