Why thunder when it rains, and why thunder on rainy days

As rivers, rivers, lakes, and seas are exposed to the sun, water becomes water vapor. The water vapor rises and turns into small droplets, and finally into clouds. The small water droplets or Xiaoice crystals that make up the cloud are supported by the air flow below, and the rising air flow is constantly transporting the water vapor below the cloud to 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 gradually become larger, and as the volume of the ice crystals in the upper layer of the cloud increases, the water droplets fall between the droplets in the lower part of the cloud layer, and the water droplets become larger and larger. When these droplets are so big that the updrafts can't hold them, it rains.

Why is it thundering.

There are many currents of air in the air that are constantly moving. There is a direction to these air currents.

Running up, some running down, in different directions, at different speeds, some fast, some out.

Slow. The movement of the air currents causes the cumulus clouds in the air to either rush upwards and some downwards. The friction between clouds and clouds causes clouds to carry different kinds of charges. Since the same kind of charge repels each other, it is positive and negative.

The charges are gathered at the ends of the cloud. The faster the air moves, the thicker the clouds, and the more electricity is carried. Cumulus clouds carry electricity reached.

To a certain extent, it will pass through the air and neutralize the two charges. Because electricity generates heat when it passes through the air, it makes it empty.

The gas expands rapidly, resulting in a loud noise, which is called a transport mine.

If the charged cumulus cloud is relatively close to the ground, the electrostatic inductance will cause the ground to carry a different charge than the lower layer of the cloud.

When the charge reaches a certain level, the cumulus cloud will discharge to the ground, which is a landing mine that is easy to cause disasters.

Generally speaking, it is easy to discharge from ** when there is something protruding from the ground, so when we are in the wilderness, we can't.

Take shelter from the rain under tall trees.

Why there is spring, summer, autumn and winter:

Why is there an alternation of cold and heat on the earth, spring goes to autumn? The mystery and mystery of this lies in the fact that the earth's axis of rotation has an inclination of 23 degrees and 27 minutes. While the Northern Hemisphere receives direct sunlight in the middle of summer, the Southern Hemisphere faces the oblique rays of the sun and is in the middle of winter.

Spring in the Northern Hemisphere corresponds to autumn in the Southern Hemisphere, and both hemispheres receive the same amount of sunshine. This is the origin of the four seasons. We call the circle of latitude at 23 degrees 27 minutes north latitude the Tropic of Capricorn, and the circle of latitude at 23 degrees 27 minutes south latitude as the Tropic of Capricorn, which means that the direct sunlight of the sun is bounded here, and then we begin to turn around and turn back.

The Arctic Circle and the Antarctic Circle will have half a year when the sun never sets, and the other half a year will fall into a long dark night. Since the Earth's orbit around the Sun is not a standard circle, the Southern Hemisphere is slightly hotter in the summer and colder in the winter than in the Northern Hemisphere. Some researchers believe that the superposition effect of the change of the earth's axis and the distance between the sun and the earth with a cycle of tens of thousands of years may be the macroscopic cause of the formation of the ice age on the earth.

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.

Cold air and warm and humid air currents are a pair of contradictions, and there is a common hatred.

When the two of them were in their prime, they would fight each other, causing lightning and thunder in the clouds, and even eruptions and tornadoes.

Of course, there are also times when they are evenly matched and fight for a long time, and the battle is not too fierce, so there may be no thunder and lightning.

The "corpses" produced by the cold air and the warm and humid air currents fighting each other fall one after another, and the rain is formed.

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

Why thunder and lightning when it rains.

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 the human body, reaching down and getting closer to the ground.

Eventually, the negative charge of the cluster base finally overcame the barrier of air and connected, and a huge electric current surged along the conductive airway from the ground to the clouds, and lightning was generated.

<> thunder is a phenomenon of electrical discharge between clouds with a different charge or between clouds and the earth, and when it rains, 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.

This is thunder.

Summary. Why does it thunder on a rainy day.

When it rains, the clouds are thick and the air is humid. At this time, when the charge is neutralized, a large amount of light and heat is released instantaneously, which heats and expands the surrounding air to a high temperature of 30,000 degrees Celsius. At the same time, the surrounding air is pushed to cause the air to vibrate, and the sound produced at this time is thunder.

When two clouds with a different charge meet, or when a cloud with a different charge is close to the earth, the phenomenon of discharge, which is what we see as lightning, occurs. The air is humid and the clouds must be large enough for lightning to occur.

Thunder is a natural phenomenon, and when it rains, the clouds in the sky have positive and negative poles. When two clouds collide, lightning strikes and a large amount of heat is released, causing the surrounding air to heat up and expand. The air is instantly heated and expanded, pushing the surrounding air, and then causing a strong **-type vibration, which is thunder.

Why does it thunder on a rainy day. Thunder and lightning are actually electrical discharges in thunderstorm clouds. In general, two conditions are required for a thundercloud to form, namely sufficient water vapor and violent convective movements.

In winter, the air is cold and dry, and the solar radiation is weak, making it difficult to form convection currents in the air, so thunder and lightning are rare. However, if the temperature is high in winter, thunderstorm clouds will form, thunder and lightning will occur, and rain and snow will occur.