China's central and eastern regions will usher in a new round of cold air to prevent snowstorms and low temperature freezing

(Until December 17) in the past week, the cold wave hit our country, by the warm weather quickly turned cold, strong winds in the eastern region will cool down significantly, the Yellow River in Inner Mongolia frozen accelerate, the central South China frost, while the total amount of rain and snow south pole-year history of breakthrough Value; After 17 days, the country’s precipitation is scarce and the temperature is gradually rising.

December 13 to 16, JAC most areas to the south has emerged rain changing to snow weather, Jianghuai, and Jiangnan ushered in this year's first snowfall, Jiangxi, Zhejiang some areas down to Blizzard. At 14:00 on the 16th , the depth of snow in most parts of the central and eastern parts of the Yangtze River was 5 to 15 cm, and the depth of snow in parts of southern Anhui was 16 to 20 cm. South from a wide range of rain and snow began December 10, affecting a wide range, strong rain and snow intensity, the process of precipitation extremes breakthrough year history. The precipitation process is the most extensive and strongest precipitation process in southern China since October . Affected by heavy precipitation, the drought in the Jianghuai region and its south areas has been alleviated, and soil over-humidity has occurred in parts of the south of the Yangtze River. Affected by the cold wave, the central part of South China has experienced frosty weather since the beginning of winter. Some roads in the Jianghuai, Jiangnan and northern China have frozen, and sea ice has appeared in the northern part of the Bohai Sea. As of the 18th , the Inner Mongolia section of the Yellow River has almost closed the river. From the 13th to the 14th , small to medium snow weather occurred in the southern part of North China and parts of Huanghuai. However, since October , the precipitation in the arid areas of North China and Huanghuai has been decreasing, and the precipitation is too small and weak, which is not enough to alleviate the drought. Therefore, the drought in the arid areas such as the eastern part of the northwest, southern part of North China, and the upper part of Huanghuai Still continuing.

According to the civil affairs department and the meteorological department sources, 13 to 18 December, Zhejiang, Anhui, Fujian, Jiangxi, Guangdong, Sichuan, some areas suffer from snow and freezing disasters, including Zhejiang, Jiangxi affected heavier. The affected population in Zhejiang is 3.451 million, the area affected by crops is 254,600 hectares, the direct economic loss is 2.79 billion yuan; the affected population in Jiangxi is 1.097 million, the area affected by crops is 71,200 hectares, and the direct economic loss is 590 million yuan.

A new round of cold air and precipitation is coming. Is expected next week, the eastern part of southwest China, the Yangtze River, South China precipitation is generally 10 to 25 mm, the eastern parts of the Southwest, south west, north of South China, which are 30 to 60 mm, the main precipitation period to December 23 From the 25th to the 25th ; some areas of northern Xinjiang, eastern Inner Mongolia, northeastern northeast, Shandong Peninsula and other places have 1 to 5 mm of snowfall, and local areas can reach 10 mm; precipitation in most of the above areas is 2 to 5 more than normal. Cheng, Jiangnan, northwestern China and other places are more than 1 to 2 times more.

In the coming week, most parts of China will have a lot of changes in cooling and heating. The temperature in most of the central and eastern regions is about 1 °C lower than normal. The temperature in some parts of northeastern Inner Mongolia and northeastern China is 2 ~ 3 °C. The temperature in most parts of western China is basically the same as that of normal years. high.

Concerns and suggestions

The cold air from the 22nd to the 26th will bring strong winds, rain and snow to the central and eastern regions of China. Relevant localities and departments need to strengthen their prevention of adverse impacts on transportation, agriculture, animal husbandry and people's lives.

The drought in most areas such as North China and Huanghuai will continue. The winter wheat area needs to strengthen field management, and adopt measures such as suppression, fertilization and cover to protect against drought and freeze, so as to ensure winter wheat safely.

The main weather process in the coming week. From the 20th to the 21st , there are small to medium snow in northern Xinjiang, northeastern Inner Mongolia, and northern Heilongjiang, and there are heavy snow in some areas. From the 22nd to the 26th , due to the influence of a shareholder moving cold air, the temperature in most parts of central and eastern China will drop by 6 ~ 10 °C, and the temperature drop in the northern part of North China and the eastern part of Northeast China will reach 12 ~ 14 °C; There are 4 to 6 northerly winds in most parts of northern Huaihe; northwestern and northern Xinjiang, southeastern part of northwestern China, northeastern Inner Mongolia, northeastern part of northeastern China, Jianghuai, Jiangnan, southern China, southwestern part of Shandong and northern Shandong Peninsula Small to moderate rain (snow), heavy rain (snow) in some areas.

In the coming week, there will be no obvious precipitation in the arid regions of the northwestern region, central and southern China, and Huanghuai, and the drought will continue. Around the 24th , there was light snow in the southeastern part of the northwestern region and the northern part of the Shandong Peninsula, which had a certain effect on easing the drought.