Does anyone know how many days this cooling will last? When will the temperature start to rise?

Xinhuanet, Beijing, December 25 (Reporters Liu Yangyang, Zhang Xinxin) On the night of the 24th, gusts of cold wind blew in Beijing. According to the Central Meteorological Observatory, during this period of strong cold air, northerly winds of magnitude 6 to 8 appeared in parts of Xinjiang, Inner Mongolia, Shanxi, Hebei, Beijing and other places. Driven by strong winds, sand and dust weather occurred in central Inner Mongolia, northern Hebei and other places, and strong sand and dust storms with visibility less than 500 meters occurred locally. While encountering strong winds, the temperature also dropped significantly. The Central Meteorological Observatory will continue to issue a cold wave orange alert at 10:00 on the 25th: Affected by the strong cold air, from the afternoon of the 25th to the morning of the 26th, there will be 5 to 7 storms in eastern Inner Mongolia, central and southern parts of North China, Huanghuai, most of Northeast China, and eastern Jianghuai. Level 8 and gust level 8 northerly winds. After the cold air front passes, the temperature in most of the above-mentioned areas will drop by 8 to 12 degrees Celsius. Among them, the temperature in southeastern Inner Mongolia, central and northern Liaoning, Jilin, southern Heilongjiang and other places will drop by 14 to 16 degrees Celsius. In some areas, the cooling rate can reach 16 to 16 degrees Celsius. 18 degrees Celsius. There will be moderate snow in some areas of northeastern Inner Mongolia, northeastern Liaoning, Jilin, and Heilongjiang, with local heavy to heavy snowfall (7 to 12 mm). There will be strong winds of magnitude 8 to 9 in the Bohai Sea, Yellow Sea, and East China Sea, with gusts up to magnitude 10 to 11. On the morning of the 26th, some areas in North China, Huanghuai and other places may experience the lowest temperatures since the beginning of winter this year. Among them, the lowest temperature in northern North China will reach minus 20 to minus 30 degrees Celsius, with local temperatures reaching minus 30 to minus 35 degrees Celsius; the lowest temperatures in central and southern North China, Huanghuai and other places will reach minus 7 to minus 15 degrees Celsius, with local temperatures reaching minus 30 degrees Celsius. 15 to minus 20 degrees Celsius. The reporter learned from the China Meteorological Administration that this strong cold air weather process has the characteristics of large cooling range, wide impact range, and fast moving speed. Meteorological experts suggest that people should pay attention to adding clothes to keep warm, and aquaculture species should take certain measures to prevent cold and wind. It is necessary to strengthen prevention of the impact of disastrous weather on agricultural production, transportation, and people's production and life. The reporter also learned from the Central Meteorological Observatory that from the 25th to the 26th, affected by another wave of cold air, the temperature in northern Xinjiang and the eastern part of the northwest region will drop by 4 to 8 degrees Celsius, and the cooling rate in some areas can reach 10 to 12 degrees Celsius. There will be light to moderate snow or sleet in the eastern part of Northwest China, Huanghuai, Jianghuai, Jianghan and other areas. From the 27th to the 29th, there will be a weak cold air affecting northern Xinjiang, eastern Northwest China, and North China.