The reason for the recent heavy rainfall in the southern region

China's latitude and longitude span is very large. Generally, a quasi-stationary front is formed, that is, it rains for a long time in the frontal area, and the sun is shining in other areas, and even drought conditions occur in areas controlled by cold air and high pressure. In April, as the winter monsoon weakened and receded, the warm air mass pushed the frontal rain belt to make landfall along the southern coast of China. In May, the summer monsoon continued to strengthen, and the warm air mass pushed the frontal rain band to the Nanling area. In June, the summer monsoon strengthened further, and the warm air mass pushed the frontal rain belt northward to the middle and lower reaches of the Yangtze River.

At this time, the cold and warm air masses are evenly matched, causing the frontal rain belt to stay or swing in the Yangtze-Huai region for about a month, forming the plum rainy season. In July and August, the summer monsoon became stronger and moved northward, and the warm air mass pushed the frontal rain band to reach North China and Northeast China. In September, forced by the winter monsoon and the weakening of the summer monsoon and its southward retreat, the cold air mass pushed the frontal rain band southward to the south of the Yangtze River. In October, the winter monsoon further strengthened, and the cold air mass pushed the frontal rain band to retreat southward and withdraw from the mainland of China.

According to the direction of movement of cold and warm air masses on both sides of the front, the front can be divided into three categories: cold front, warm front and quasi-stationary front. The front in which the cold air mass actively moves towards the warm air mass is called the cold front; The front in which the warm air mass actively moves towards the cold air mass is called the warm front; The cold and warm air masses are evenly matched, or when the terrain is blocked, the front moves slowly, or swings in one area for a long time, causing rainy weather, this kind of front that moves very little is called a quasi-stationary front. From this, it can be seen that the nature of the front is caused by actively moving air masses.

In addition, in areas where warm and humid air is controlled, the warm and moist air often rises and cools due to the sun's irradiation on the ground, forming convective clouds and producing convective rain, which is commonly known as thundershowers. Generally, artificial rainfall is also used to take advantage of this opportunity.

One is in the rainy season, one is in the Arctic, and the other is balanced because of the drought in the southwest

The rainy season is the rainy season when the warm front passes through the rainy season.

Heavy rain will cause urban waterlogging, affect people's travel, and are prone to mudslides that threaten people's lives and property, and will also affect the harvest of local farmers. Heavy rains hit the south Heavy rains hit the south, which greatly affected the lives of local people. The impact of heavy rains on people can be both good and bad.

Heavy rains can cause waterlogging in cities, affecting traffic and affecting people's travel. Moreover, mudslides and so on will occur in many places, endangering people's lives and property.

For local residents, the house is damp, the interior is flooded, it is impossible to live normally, and there is even the possibility of the flu.

Large-scale flooding has inundated many residential buildings, threatening the lives of local people. Traffic travel has been severely affected, and many people have been forced to isolate on the top floor of their homes. Causing serious damage to local residents' real estate and automobile-related assets.

Because the southern region is close to the sea, the movement of the sea breeze can bring precipitation to the southern region. Secondly, the vegetation coverage rate in the southern region is very high, and the high vegetation rate coverage can carry out plant transpiration and can also cause rain.

Because it has not rained in the southern region for a long time, there is a lot of water vapor in the sky, so it will usher in heavy rainfall.

Because the south ushered in the rainy season, and it was generally used at this time in the south to have a lot of river fish.

In the relevant weather forecast, heavy rainfall has occurred in many southern provinces of China, and there are also heavy rainstorms in individual areas, which have seriously affected the lives of residents, and the areas with obvious disasters are mainly concentrated in Guangdong Province, Guangxi Province and Fujian Province.

Heavy rainfall has occurred in the northern part of Guangdong Province, and a red alert has been issuedIt means that in the next three hours, the precipitation will reach about 250 mm, and in some areas it may be greater than 250 mm of precipitation, in addition to the southern part of Hunan Province and the adjacent areas of Guangdong Province will have extremely heavy rainfall, the average hourly precipitation is about 100 mm, and the precipitation in the next three hours is about 100 mm to 250 mm. The heavy rainfall will last for about a week, and intermittently in some areas will last for about half a month.

The eastern part of Guangxi province experienced extremely heavy rainfall. The main core of the heavy rain in the south is concentrated in the junction of Hunan Province, Guangdong Province and Guangxi Province, and the northeast and eastern regions of Guangxi Province will have extremely heavy rain in a short period of time, with 250 mm of precipitation in the next three hours, and more than 250 mm of precipitation in some areas. In addition to the northeastern region, the central and southern regions of Guangxi Province will experience varying degrees of precipitation, with precipitation reaching about 50 mm to 100 mm in the next six hours.

The northern part of Fujian province will experience extremely heavy rainfallIt is mainly concentrated in the central and northern regions of Fujian Province, with local precipitation reaching more than 250 mm within three hours, and all other areas of Fujian Province have all precipitation of about 100 mm. In addition to these three provinces, the southern part of Guizhou Province, the southern part of Hunan Province, the southern part of the province and most parts of Jiangxi Province will experience heavy rainfall of 50 mm to 100 mm.

Jiangxi, Anhui, Guizhou, Hubei, Fujian, and the northern parts of Guangdong Province experienced heavy rainfall, and a red alert was also issued locally.

There are Guizhou, Yunnan, Guangxi, Guangdong, Hunan and other places, because these areas have had many heavy rains in successive days, resulting in flooding.

Jiangxi, Anhui, Guizhou, Hubei, Fujian, these places are very obviously affected, and many people have been injured.

After the extreme high temperature of the scorching sun, the southern region of our country ushered in a new round of rainfall, the scope of the rainfall mostly involves Jiangxi Province, Hunan Province, Guangxi Province, Yunnan Blind Gaopai Province, Guizhou Province, Sichuan Province and many other southern provinces, and there are torrential rains and extremely heavy rains in some areas.

A new round of rain is likely in the northern part of Guangxi provinceThis is also the province with the least rainfall and rainfall area in the southern region, concentrated in the area north of Guilin, with about 10 25 mm of precipitation, and the rainfall may last for about 3 5 days before it ends.

All areas of Yunnan Province will face a new round of rainfall。Among them, the western and northeastern regions of Yunnan Province are accompanied by heavy rainfall, with precipitation as high as about 50 100 mm, and in a small number of local areas, the precipitation may reach about 100 mm to 250 mm, and the precipitation in other Yunnan provinces except these two areas is mostly maintained at about 10 25 mm.

Guizhou and Sichuan provinces, as well as Chongqing Municipality, were accompanied by heavy rainfallAmong them, the most serious province belongs to Guizhou Province, most of the precipitation in Guizhou Province has reached about 50 mm to 100 mm, and the precipitation in some areas has reached about 100 mm to 250 mm, that is, there are 1 3 areas with precipitation of about 25 mm to 50 mm, Chongqing area has only about 1 4 areas, with precipitation of about 25 mm to 50 mm, and most areas of Sichuan Province have relatively normal precipitation, about 10 mm to 25 mm.

Heavy rainfall will occur in parts of Hubei and Jiangsu provincesAmong them, the northern part of Hubei will have 50 mm to 100 mm of heavy rainfall, and some areas may reach 250 mm, most of Jiangsu Province will remain at about 25 mm to 50 mm, and the northern part of Anhui Province will also have different degrees of heavy rainfall.

In addition to the above provinces, there are also parts of Henan Province, most of the provinces in Shandong Province will experience different rainfalls, and these provinces are mainly concentrated in the northern part of the country.

The eastern part of Inner Mongolia, the northern part of Jishan Lilin, the southern part of Heilongjiang, the central and eastern part of the Sichuan Basin, the western Sichuan Plateau, Chongqing, Guizhou, the western and northern parts of Yunnan, and the central and northern parts of Guangxi, specifically involve these places, and there will be rainfall.

The specific places involved are northern Jilin, central Jiangxi, southern Anhui, western Yunnan, and central and northern Guangxi.

Judging from the relevant formulas of weather forecasting, the southern part of Shanxi and Henan, Shandong will have this high temperature weather, especially the central and southern reform of Hebei Xiaosun Department is also cautious if there will be high temperature weather, which is more serious, then Zhengzhou, Henan has continued to have high temperatures, and now the nuclear chain will continue to appear more than 40 degrees of hot weather.

It should be Hebei and Shanxi and other places. People in these areas should take precautions to avoid heat stroke as much as possible.

Shanxi, Inner Mongolia, Henan, Hebei, Shaanxi, and northern Jiangsu and Anhui will continue to experience hot weather, and residents must take protective measures.

Hubei, Henan, Hunan, Jiangsu, Zhejiang, etc., because the temperature will rise in these areas, and there will be sauna days.

In June, the convection from the southern region is relatively strong, so heavy rainfall has formed, which has a great impact on the south, and many places have ushered in floods. Prevention should be strengthened.

It is related to environmental changes, we must pay attention to the protection of the environment, pay attention to the drainage system, and pay attention to the safety of the house, so that we can better protect ourselves.

The main reason is that it was affected by the cyclonic storm in the Bay of Bengal, which caused the impact to be very bad. Relevant departments should strengthen prevention and control measures in this regard, strengthen prevention and management in this regard, and also do a good job in corresponding prevention and control measures to avoid causing more serious impacts.