Is the weather before thunder the same as the weather after thunder?

The weather before a thunderstorm is different from the weather after a thunderstorm.

Thunder and lightning is a discharge phenomenon in the atmosphere. Thunder is usually accompanied by lightning and thunder. It accumulates in thunder clouds and forms polarity. It is generally generated from cumulus rain with strong convection, so thundery weather is often accompanied by strong thunder. There are gusty winds and heavy rains, and from time to time there are also abnormal weather phenomena such as hail or tornadoes.

Thunder and lightning are mostly formed in cumulonimbus clouds. Cumulonimbus clouds will continue to move with changes in temperature and air flow. During the movement, friction will generate electricity, forming charged clouds. Some clouds have There are positive charges and other clouds have negative charges. In addition, due to electrostatic induction, buildings, trees, etc. under the clouds often have opposite charges. As charges accumulate, the voltage of thunderclouds gradually increases. When thunderclouds with different charges and earth protrusions are close to each other to a certain extent, the electric field between them exceeds 25~30kv/cm, and a violent discharge will occur. There was a strong flash of light at the same time. Because the temperature during discharge is as high as 2000°C, the air expands rapidly due to heat, followed by the roar of explosions, which are lightning and thunder.

Therefore, there are dark clouds before thunder, and there are storms or strong wind gusts after thunder. After the thunderstorm, the sky is clear.