Snow and thunder are not a good sign, okay? What's going on here?

1, snow and thunder are not a good sign? We can see less snow and thunder in winter. Finally, when people see this extremely rar

Snow and thunder are not a good sign, okay? What's going on here?

1, snow and thunder are not a good sign? We can see less snow and thunder in winter. Finally, when people see this extremely rare natural phenomenon, they will have doubts, and conditioned reflex thinks it is a bad sign.

2. Is it snowing and thundering? There is nothing good about it. This is just a natural phenomenon, just like a rainbow when it rains.

The weather omen of snow and thunder is: a few days before the incident, the local temperature is often above 0℃ and the humidity is high. On the day of the incident, strong cold air affected the local area. When strong cold air comes into contact with relatively warm and humid air near the ground, the light warm and humid air is violently lifted, resulting in unstable stratification and thunderstorm clouds. The temperature of thunderstorm clouds generated by lifting is below 0℃, so there will be weather phenomena of snow and thunder.

3. Thunderstorm requires that the atmospheric stratification is very unstable, strong convection occurs, and there are thunderstorm clouds in the sky. This is easy to achieve in summer because of the strong solar radiation and high ground temperature. When it snows, the atmospheric temperature is required to be low, especially the temperature of clouds in the sky should be below 0℃. Obviously, the low temperature in winter is relatively easy to achieve. It is precisely because of the low temperature that it is not easy to form strong convection that it seldom thunders in winter. Of course, if for some reason, both strong convection and low temperature are met, it may snow and thunder again.

4, as the saying goes: thunder and snow, people eat iron, thunder and winter, ten houses and nine empty? ; Yesterday in beginning of winter, it snowed in many places in the north, accompanied by thunder, so this rare thunderstorm and snow weather appeared. So according to the legend of our ancestors, people think that thunder is not a good sign when it snows. Is that really the case? Today we will analyze it.

We know that thunder usually occurs in strong convection, because in winter, because the ground air is cold and the atmosphere is relatively stable, it is not easy to have strong convection. Therefore, it is generally impossible for lightning to occur, but a few days ago, the temperature in many places suddenly rose to more than 20 degrees, and suddenly cooled down overnight, resulting in a rapid drop in temperature, even below zero, which led to a fierce convergence of cold and warm air and a vertical convection after the rapid rise of warm and humid air, thus causing the phenomenon of thunder, rain and snow.

As for thunder, rain and snow, people eat iron, thunder and winter, ten houses and nine empty rooms? ; There must be some truth in this proverb, which is the experience of our ancestors on climate change for thousands of years, because in the past, people basically depended on the weather to eat, and farmers depended on the weather changes to a great extent when farming, and the weather directly affected the harvest of crops. As the proverb goes, if there is extremely bad thunderstorm, rain and snow, it indicates that the crops will fail in the coming year and the people will have no food to eat, which will lead to many people dying from famine, so it will appear. Therefore, in the past, due to the low agricultural productivity, there may be no harvest in bad weather.

In fact, both the sudden drop in temperature and the approaching snowstorm will have an impact on the growth of crops and will definitely lead to a reduction in production. So many proverbs are not groundless. However, with the development of agricultural science and technology, the field irrigation facilities are relatively perfect, and the agricultural productivity and anti-risk ability have been greatly improved. There will be no major disasters, and there will be no such situation as when the technology was underdeveloped before. People do not have to worry too much. However, the change of weather has a great influence on farmers' farming, so we should always grasp the change of weather and take precautions.