202 1 1 5 What is a slight cold? What does the thunder of solar terms portend?

June 5, 20021year, is the twenty-four solar terms of slight cold in China, and many people don't know much about it. So what is the solar term +0+0 in June 20265438? What do the slight chill and thunder portend?

What is the solar term of 202 1 1 5 slight cold?

Slight cold is the 23rd in 24 solar terms, the end of calendar month and the beginning of ugly month. The time point is between 65438+1October 5-7 in Gregorian calendar every year, and the sun is located at 285? . Slight cold, like severe cold, mild summer heat, slight cold, snowy day and severe summer heat, are all solar terms indicating temperature changes. For China, the slight cold represents the beginning of the coldest day of the year. In the twenty-four solar terms, it is said that the cold at the beginning of the month is greater than that in the first half. In other words, in the Yellow River basin, the great cold was smaller and colder than then. And because the slight cold is still in the last few days of February 9, it will take a few days for the slight cold to enter March 9, and the slight cold in winter just corresponds to the slight heat in summer. As the saying goes, cold air has been cold for a long time. At this time, the weather is cold, and the great cold is not extreme, so it is called slight cold.

The characteristic of slight cold is that the weather is getting cold, but it is not cold yet. Midwinter March 9 is basically within this solar term, so there is a saying that slight cold is better than great cold. This is because on the solstice of last winter, the surface received the least sunlight and heat, but the heat in the deep soil supplemented this, so it was not the coldest time of the year. After the winter solstice, that is, around March 9, the heat in the deep soil was consumed. Although the sunshine and heat increased slightly, it still made ends meet, so the lowest temperature in the whole year appeared.

What do the slight chill and thunder portend?

Slight cold and thunder portend bad weather. In fact, lightning is a discharge phenomenon in thunderstorm clouds. Generally speaking, thunder clouds have two conditions: sufficient water vapor and strong convection. In winter, because the air is cold and dry, the solar radiation is weak, and convection is not easy to form in the air, so lightning is rare. But in winter, sometimes the temperature is high and the warm and humid air flow is strong. When there is occasional strong cold air going south in the north, warm and humid air is forced to rise, and convection intensifies, forming thunderstorm clouds, producing lightning and rain and snow. Convection is particularly strong, and it can also form hail. In winter, there will be a weather phenomenon called thunder. Thundering in winter means that the air humidity is high and it is easy to form rain and snow, so there is a saying that it thunders and snows in winter.