Around the beginning of winter, cold air will move southward, which may significantly set the lowest temperature since the beginning of autumn.

A new round of widespread precipitation started yesterday. Looking at the cloud map today, the southwest region to Jiangnan and Huanghuai areas are covered by thick clouds.

The subtropical high pressure firmly controls South China, stably producing 30°C+ summers, and at the same time it pushes against the cold air from the south and cooperates with water vapor to create large-scale precipitation.

The good news is that this rain will further converge tomorrow, and there will still be light rain only in the Sichuan Basin to western South China, Jiangnan and other places.

The bad news is that the subtropical high pressure will continue to control the situation. After this round of precipitation, from the 3rd to the 8th, with the frequent intersection of cold and warm, the south will enter a continuous rain pattern. Among them, around the 3rd to 4th and around the 7th, due to the phased strengthening of cold air and warm and humid airflow, there will be moderate to heavy rains and local heavy rains in some areas from Chongqing and Guizhou to Jianghan, Jianghuai, Jiangnan and other places.

Generally speaking, in the next ten days, rainfall will increase significantly in the southern region. The western and northern parts of Jiangnan and Chongqing, Guizhou, Guangxi and other places will experience rainy weather. The number of rainy days generally lasts for 6 to 8 days, and the precipitation is significantly higher than the same period in normal years.

Under the double blow of cold air and rain, the temperature in the eastern southwest, Jianghan, Jianghuai, Jiangnan and other places will drop sharply and gradually drop to low levels. After the cold air passes in most of the north, the temperature will rebound back to a high state.

Tomorrow, the focus of cooling will be south of the Yangtze River. In some areas of northern Guangxi, southern Hunan, central Jiangxi, and southern Zhejiang, the drop can reach more than 10°C in a single day. You will feel damp and cool, so please keep warm. After the cooling, the maximum temperature will drop to about 20℃, with local temperatures around 15℃. The temperature will gradually drop to low levels for the same period of the year, and some areas will set a new low after the beginning of autumn.

However, southern China will be less affected by the cold air in the next few days, and the maximum temperature will still be around 30°C.

For places such as Northwest China, North China, Huanghuai and other places, although the temperature fluctuates before the beginning of winter, it is generally warmer, especially around the 2nd and 5th. The highest temperature in southern Hebei, Henan, Shandong and other places will still reach above 20℃, which is 4~8℃ higher than the same period of the year.

Lin Nan, a meteorological analyst at China Weather Network, reminded that there will be obvious cold air moving southward around the Beginning of Winter (November 7). At that time, the temperature will drop again from north to south in most of my country, and the temperature will significantly refresh the lowest temperature since the Beginning of Autumn. The time limit is far away, so stay tuned.