When will it thunder and what season it will be thundering

When dust, ice crystals and other substances in the air tumble and move in the clouds, they go through some complex processes to make these substances carry positive and negative charges respectively. As a result of the movement, a heavier substance with the same charge will reach the lower part of the cloud (usually a negative charge), and a lighter mass substance with the same charge will reach the upper part of the cloud (usually a positive charge). In this way, the convergence of homogeneous charges forms some charged centers, which are formed when the air between the charged centers of the opposite sex is broken down by its strong electric field"Inter-cloud discharge"(i.e. lightning).

When the negatively charged cloud is close to the ground, the protrusions and metals on the ground will be induced to have a positive charge, and with the gradual enhancement of the electric field, the thundercloud will form a downward leader downward, and the objects on the ground will form an upward flash, and the two will meet to form a discharge to the ground. This can easily cause lightning disasters.

Thunder and lightning are formed during atmospheric motion, which is caused by the violent frictional electricity generated during atmospheric motion and the cutting of magnetic field lines by clouds.

The most common shape of lightning is dendritic, in addition to balls, sheets, bands. The forms of lightning include cloudy lightning, inter-cloud lightning, and cloud-to-ground lightning. When lightning strikes between clouds, the friction between clouds forms thunder.

Not necessarily, thunder is caused by the friction of clouds.

Rain is a matter of cloud moisture.

Thunder is easy to cause changes in cloud structure and change water content, but it is not necessarily 100 It will rain There is a saying that there is a dry thunder, that is, only thunder, no rain.

Thunder is summer.

There are many thunderstorms in summer, and thunder requires sufficient water vapor and vigorous convective movement, and the rain is abundant in summer, which is more satisfying. Thunder is a phenomenon of discharge in the thundercloud rain, when the positive and negative clouds come into contact with the lightning will be generated, and at the same time release a huge amount of heat to cause the surrounding air to vibrate, which further leads to the appearance of thunder, forming the common thunder and lightning in our lives.

Precautions for thundering

1. When thunder, the first thing to do is to close the doors and windows to prevent lightning from hitting the room and spherical lightning from drifting into the room.

2. Leave the metal water pipe and the sewer pipe connected to the roof indoors.

3. Showers should not be used. Although water pipes are generally equipotential connected to lightning grounding, lightning currents may be conductive through water currents and cause human beings**.

4. During a thunderstorm, try not to call, answer or use** the Internet, and unplug the power supply of electrical appliances, wires and TV feeders and other metal wires that may introduce lightning into the room.

5. Keep the house dry, and repair it in time when the house leaks.

6. The insulator iron feet of the power cord should be reliably grounded, and the protective ground wire in the indoor power socket should be well connected. Bonai.

7. Do not pull the wire used for drying clothes and bedding to the window or door to prevent the wire from causing lightning.

8. Do not stay in the rain for a long time without lightning protection devices or isolated pavilions and grass sheds. Be careful to avoid electrical wiring, do not stand under light bulbs, and preferably when the power is off or not in use.

Thunder is a natural phenomenon, because the cloud droplets or ice crystals in the cumulonimbus cloud increase to a certain extent, so that the electric field strength in the cloud reaches or exceeds the breakdown electric field strength of the gas, resulting in violent friction of the air inside the cloud or between the cloud and the ground, thereby generating a large amount of instantaneous heat energy, making the air volume expand sharply, causing strong ** vibration, and at the same time making the surrounding air appear extremely strong charged effect, causing lightning.

When the weather is cooler, it stands to reason that there is less chance of lightning than on a hot day, so why are thunderstorms still frequent? This is because in the summer we stay in the "greenhouse" and blow the air conditioner all day long, on the one hand, the relative humidity becomes smaller; On the other hand, when lightning occurs, there is often a random turbulence that spreads out and acts as a good conductor. In the cool autumn and winter, there are fewer conductors, and lightning strikes occur from time to time.

Thunderstorms are mostly concentrated in convective or downburst clouds with particularly strong convection, at this time, in the front and upper parts of the convective or downburst clouds, upward shock waves are often generated, and with the strengthening of convection, the shock wave gradually strengthens. What followed was a flash of lightning, and a large-scale discharge between clouds and between clouds and between clouds and the earth was generated.