Blizzard occurred in Hunan 16 counties and cities. What impact does cold air have on the local area?

Perhaps the temperature in many places is rising gradually, and even some places are sunny every day. However, at this time, there was a blizzard in some places in Hunan. According to the statistics of relevant departments, there are about 16 counties with snowstorm weather. What about the local temperature? During the Spring Festival this year, the circle of friends was swept by waves of goose feather snow, including heavy snow in Hunan 16 counties and cities. This is because Hunan is affected by frequent cold air, which leads to continuous low temperature in Hunan. The purple cold air is caused by the stability of middle and high latitudes in Europe and Asia and the abnormal activity of the low pressure trough in the southern branch of the Qinghai-Tibet Plateau.

The weather has cleared up in many places, and the temperature is gradually rising. However, at this time, snowstorms appeared in parts of Hunan, and Zhijiang, Tongdao, Loudi, Huaihua, Suining, Wugang and Chengbu were affected. Affected by the blizzard weather, the temperature in many places is low, and the temperature in most areas is between 0 and 3 degrees. Even in some places, the snow is extremely thick, and in some places, the snow has reached more than 10 cm. Suddenly there was a snowstorm, which had a great impact on the lives of local people.

According to the detection of Hunan Climate Center,1From October 23rd to February 7th, the average temperature in Hunan Province was only 3.6℃, 2.5℃ lower than the same period last year. There are two main factors that cause cold air in Hunan. One is the stable blocking pattern in the middle and high latitudes of Europe and Asia, which is conducive to the slow penetration of cold air and the deepening of the south. The second factor is that the low-pressure trough in the south branch of Nanyuan on the Qinghai-Tibet Plateau is extremely active, so the water vapor in the Bay of Bengal is continuously transported to China.

In this process, strong warm and humid airflow and cold air are established, and the form of continuous and stable precipitation in the whole southern region of China is established. Therefore, the combination of cold air and sufficient water vapor will lead to heavy snow in all parts of Hunan. When encountering snowstorm weather, it may have a great impact on the lives and work of many people. Because people definitely need to drive or ride bicycles during work, it may be very inconvenient for people to travel when the snow is too deep. In case of snowstorm, everyone must ensure their own safety when going out. If the snow is not particularly deep, you can install snow chains while driving. This can also strengthen the friction between the tires and the ground, but if the snow is particularly deep, it is better for everyone to stay in the room.