At 16:00 on December 18, 2025, the Xining Meteorological Observatory issued a blue warning for a cold wave: it is expected that a cold wave will occur in Xining City from 08:00 on December 19 to 08:00 on December 21. The temperature in Xining City will drop by 8-10 ℃, and the temperature in Huangzhong District, Datong County, and Huangyuan County will drop by more than 10 ℃; On the 20th, the highest daytime temperature will drop below -2 ℃, and the lowest morning temperature will drop below -12 ℃. During the process, there is a 4-5 level westerly wind with gusts of 6-7 levels; There will be light snow from the night of the 19th to the day of the 20th. Cold waves, blowing winds, and weak snowfall weather have a significant impact on agricultural and animal husbandry production, energy supply, road traffic, urban operations, and public health. Please take precautions. Defense guidelines: 1. The government and relevant departments should do a good job in preventing cold waves according to their responsibilities; 2. Individuals should pay attention to adding clothes to keep warm, and people who are sensitive to temperature changes should try to minimize going out; 3. Take protective measures for agriculture, forestry, animal husbandry, and animal husbandry.