How high will the severe cold wave be in 2023?

The extreme cold wave in 2023 will generally drop by 8-16℃, but the specifics will vary by province.

A large-scale cold wave occurred in the central and eastern regions from January 11 to 15, 2023, which was the first cold wave weather event this year. This process is characterized by intense cooling, strong winds, wide range of rain and snow, and complex rain and snow transition phases.

Compared with the process in late November and mid-December 2022, the lowest temperature 0℃ line during this cold wave weather process is located further south, and the cooling is more severe.

On the morning of the 16th, the minimum temperature line of 0℃ pressed southward to the area from central and southern Jiangnan to southern Guizhou; during this process, the snowfall range was wider and more intense in the areas from North China, Huanghuai to the middle and lower reaches of the Yangtze River , but not as good as the same period in 2018 (January 24 to 28, 2018).

The phase transition between rain and snow is complex

From 13th to 15th, 2023, southern Henan, Jiangsu, Anhui, central and northern Zhejiang, northern Jiangxi, Hubei, central and northern Hunan, and central Guizhou A wide range of rain turned to snow and sleet weather occurred in the northern part of the country and the northern part of the Sichuan Basin. There were heavy snowstorms in Xinyang, Henan and Chizhou, Anhui. The precipitation in Chizhou, Anhui reached 33 mm.

Southern Guizhou, southern Hunan, central and southern Jiangxi, central and southern Zhejiang, Fujian, Guangxi, Guangdong and other places are dominated by rainfall. Heavy rain or heavy rain occurred in some areas, including Tongren, Bijie, Guizhou and Chenzhou, Hunan. Freezing rain.

Before the impact of the cold air, periodic heavy fog occurred in Liaoning, Beijing, Hebei, Shanxi, Henan, Shandong, Jiangsu and Anhui, Hubei, Hunan, Guangxi and Sichuan from the 12th to the 14th. Shandong, Visibility in Henan, Jiangsu, Anhui and Hunan was less than 100 meters.