9 rainstorm spots! Large-scale rainfall is coming in the south. Why is there widespread rainfall?

9 rainstorm spots! Large-scale rainfall is coming in the south. Why is there widespread rainfall?

As the weather changes, you know 9 rainstorm spots! There is extensive rainfall in the south. Why is there widespread rainfall? Let's talk about it together

When it rains, there is also the influence of strong winds, which directly shows that the climate this year is really unusual. Of course, this is the evolution of extreme climate and a kind of severe convective weather, which is difficult to predict and defend. There are two main sources that affect the water vapor in southern China. One is the southwest warm and humid airflow from the Bay of Bengal, and the other is the southerly warm and humid airflow from the South China Sea. Should? Storm depression? The wind speed increases to 25KT again, and the central pressure value is 1005hpa, so it will continue to increase and may land in the United States. Let's see if it will continue in the future. Naming? . At the same time, the storm in the Indian Ocean came again. That's the embryonic form of the 93A storm that I've been talking about.

Since the beginning of this year, the biggest rainstorm in South China started yesterday. First, the scope of rainfall has obviously expanded, with widespread rainfall in central and southern Jiangxi, Hunan, western Hubei, most of southern China and most of southwest China. Second, heavy rainfall has increased significantly. Many places in southeastern Sichuan, Guizhou, central Hunan, central and southern Jiangxi, northern and western Fujian, central and northern Guangdong, and northwestern Guangxi have reached the magnitude of heavy rain or above, accompanied by short-term heavy precipitation. With the continuous development of rainfall, today's rainfall has basically been eliminated from the north and developed on a large scale in the south. At the same time, the heavy rainfall in Jiangnan and South China has been delayed until May 17. From the distribution point of view, there are many rainstorm centers in southern China, among which there are 9 rainstorm spots, and the strongest one is rainstorm, with rainfall reaching 130 mm, which is located in Guangxi, so it rains heavily.

Mainly the south is really too dry. As we also said above, since the winter, the south branch trough of our country is weak, and the rain in the south is too scarce, so this is also the reason why everyone expects rain. From the comprehensive meteorological drought monitoring map, we can see that Yunnan, Guangxi, Guangdong, Fujian, Zhejiang, Hunan, Jiangxi and other places in China are in a large-scale drought pattern, and some areas are even extremely dry, and there is really no rainfall. The key areas of this rainfall are these areas. Moderate rainfall is helpful to improve the ecological environment, adjust the surface temperature difference, purify the air, and greatly help plant growth and adjust the dry humidity in the air. But the continuous heavy rain will bring bad effects. There was a storm during the period, so let's take another look. Let's look at the weather in China. Now the rainfall in south China can be said to be very fierce. What about the rainstorm warning of the Central Meteorological Observatory? Repeatedly? From the latest situation, Nanyi? Rainstorm belt? It can be said that it spans many provinces, and the rainstorm can be said to completely cover the south.

Will Jiangnan become a rainstorm this week? Main position? . On June 1 day, the national main flood season officially opened, and this week's rainfall is only the beginning. In the first ten days of June, the accumulated rainfall in Jiangnan, South China, Sichuan Basin, Guizhou and other places is generally 50 ~ 150 mm, in some areas it is 180 ~ 250 mm, and the local area can exceed 450 mm; In most areas, the accumulated rainfall is more than 50% to 1 time. This round of rainfall in the south covers an area of about 1 10,000 square kilometers, which is the biggest rainstorm process this year. This heavy rainfall is characterized by short-term heavy rainfall and large accumulated rainfall. Guizhou, Hunan, Jiangxi, Zhejiang, Fujian, Guangdong, Guangxi and Yunnan need to strengthen prevention of floods in small and medium-sized rivers, urban and rural waterlogging, farmland waterlogging, mountain torrents and geological disasters. Heavy rain may also cause floods, which may destroy farmland, flood houses and bring economic losses to people. In severe cases, it will cause traffic paralysis and network interference.