When the cold wave hits, many parts of China will experience strong localized cooling or a temperature drop exceeding 20°C. There will still be freezing rain in Henan, Hubei, Hunan, and Guizhou, which will be detrimental to the Spring Festival travel return.
In the morning of the 16th, the temperature in most areas of the north rose significantly. The warming in the north is temporary, and the cooling in northern Xinjiang has already begun. The period affected by strong cooling is: 17-18 days in the northwest region; 18-20 days in north of the middle and lower reaches of the Yangtze River; 20-22 days in most parts in the south.