Why is Hunan cooling so fast these days?

The temperature in Changsha, Hunan dropped by about 25℃ in three days. On the 15th, there may be snow and cold air passing through Hunan in the early autumn. The temperature in the whole province jumped by three degrees. The temperature in Changsha dropped by about 25℃ in three days, but the precipitation that came at the same time was relieved. Drought. It is expected that the cold air will hit again on the 15th, which will bring the first snow in Hunan since the beginning of autumn this year. On November 11, citizens in Changsha wore thick clothes when traveling (Source: Xinhuanet) As the north wind blew through the night, Sanxiang couldn't help but shudder, and the temperature also shivered and "shrunk" in the cold wind. The maximum temperature in Changsha dropped from 30.9°C on the 8th to 6.3°C at 12:00 on the 11th, with a cooling rate of as much as 24.6°C, and the temperature continues to drop. The cold air brought cold wind and cold rain, and the temperature dropped rapidly across Hunan Province. This morning, the lowest temperature in Hunan fell below zero, and Shaoyang Xinning unveiled the mystery of -2.1℃ for the first time. The lowest temperature in northern Hunan today was only 4-5℃, and in central Hunan it also dropped to 7-8℃. The temperature in southern Hunan has dropped significantly today. It is expected that the maximum temperature today will be within 13℃. Compared with yesterday's 21-22℃, the maximum temperature has dropped significantly by about 8℃. I saw it on the streets of Changsha. Citizens who go out put on winter clothes to keep out the cold. Beautiful ladies They wore scarves, and most of the men who were not afraid of the cold also wore windbreakers and hoods. Children were even "fully equipped" with winter coats and hats, and even the puppies were wearing cotton coats. The biting cold wind and the plummeting temperature caught everyone off guard; but the precipitation brought by the cold air was what everyone had been looking forward to for a long time. Data show that from 08:00 yesterday to 08:00 today, precipitation generally occurred in Hunan, with moderate to heavy rain in some areas. Areas with precipitation exceeding 20 mm include: Yiyang, Zhuzhou, Hengyang, and Yongzhou. This cold air precipitation has significantly alleviated the severe drought situation in Hunan since the beginning of autumn, which is beneficial to improving the water shortage crisis of the Xiangjiang River and solving the drinking water difficulties for people and livestock in some areas with severe drought. The Hunan Meteorological Observatory predicts that Changsha City will be cloudy with light rain from this afternoon to tomorrow day; the maximum temperature tomorrow will be 8℃ and the minimum temperature will be 6℃. Starting from the 15th, another strong cold air swept across Hunan. Its outstanding feature is that the temperature dropped significantly, which will bring the first snow in Hunan since the beginning of autumn this year. There is pure snow in northern and northwestern Hunan, mainly rain and sleet in central Hunan, and mostly precipitation in southern Hunan. This cold air process lasts for a long time and the cumulative cooling range is large. Disease control experts remind citizens to protect themselves and prevent and control influenza. According to experts, weather changes such as strong cold air make people prone to catching colds, providing an opportunity for viruses to invade the body. At the same time, as the weather gets colder, people increase indoor activities and indoor ventilation may become worse, which to a certain extent increases the chance of influenza transmission. Experts suggest that the sudden drop in temperatures should continue to encourage the reduction of gathering activities, especially indoor activities.

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