Why is there thunder and lightning when it rains?

Let's start with the rain. The water vapor in the air is condensed into small water spots or Xiaoice crystals at high altitude, and the small water spots or Xiaoice crystals collide and merge with each other, becoming larger and larger, and when the air cannot support it, it will fall, and when the low-altitude temperature is higher than O, it is rain.

To simulate this process, it is first necessary to have a large amount of water vapor in the air, which can be done by heating the water; secondly, to try to condense the water vapor, collect it, and land, which can be done by using ice; In order to prevent the water vapor from flying around, you can use a small dish to cover the rim of the cup containing the water.

Thunder is a large-scale discharge phenomenon produced by clouds with different charges in the sky, when they are close to each other, sparks and sounds will occur when discharged, the sparks are lightning, and the sound produced is thunder.

As for the wind, it is simply said that the wind is formed by the flow of air, and any place on the earth is absorbing the heat of the sun, but due to the unevenness of heating in each part of the ground, the degree of cold and warm air is not the same, so the warm air expands and rises after becoming lighter; The cold air cools and becomes heavier and then falls, so that the cold and warm air flows and forms the wind. In meteorology, wind often refers to the horizontal movement of air and is expressed in terms of wind direction, wind speed (or wind force). Wind direction refers to the direction of the wind, which is generally expressed in 16 directions or 360 degrees.

When expressed in 360 degrees, it is measured clockwise from north.

The air has become a cloud because of the condensation of water vapor, and the cloud itself will contain an electric charge (as for how the charge comes from, there is no need to explain it in detail here, everything exists, and people also have it), when the clouds gather in large quantities due to wind, air pressure and other reasons, they collide with each other, and the charges they carry will interact with each other, resulting in a voltage of tens of thousands of volts, and several groups of voltages of tens of thousands of volts collide together, which can be said to be used to release energy, and objects will naturally shine and heat up in the release of energy, so you see lightning, The instantaneous release of energy, the shock wave generated by it shakes the sound transmission medium in the air, and the sound transmission medium will fluctuate and transmit the sound, so you hear the thunder, the force is large, and the energy released is large, so that the sound medium produces large frequency fluctuations, so the thunder is deafening, because the speed of sound is much slower than the speed of light, so you see the lightning first and then hear the thunder!

1. Thunder and lightning are the discharge phenomena 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.

2. 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.

Why does it rain and thunder rain when it rains.

The clouds are full of electric charges, some positive and some negative, and when two charges collide and rub, thunder is produced. If the charges in the clouds are all the same, and there are charges in the earth, the charges at this time are opposite to the charges in the clouds, and lightning will also be generated.

The lightning emitted by thunder is transmitted to people's sight through light, while thunder is transmitted through sound, and because the speed of light is faster than the speed of sound, we see lightning first and then hear thunder.

Thunder and lightning will occur on rainy days because when the air is extremely unstable, it is prone to strong upward convective movement, and the formation of towering cumulonimbus clouds, the clouds are filled with water vapor rushing up and down, which will produce static electricity, and the upper and lower ends of the cloud will produce electric charges, and the air will expand in an instant** to produce thunder, and the electric sparks emitted are lightning.

When it rains, some of the 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, which 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.

Lightning is a phenomenon of intense electrical discharge between clouds, between clouds and the ground, or between parts of the cloud. Usually storm clouds (cumulonimbus clouds) produce electric charges, with yin electricity at the bottom and yang electricity at the top, and also a positive charge on the ground, which follows the clouds like a shadow. Positive and negative charges attract each other, and the positive charges run towards trees, hills, the tops of tall buildings, and even above the human body, reaching down and getting closer to the ground.

Finally, the positive and negative charges finally overcame the barrier of air and connected, and a huge electric current surged along the conduction airway from the ground to the clouds, and lightning was generated.