What is the situation that the whole country will be frozen by the cold wave?

There are still a few days to enter the winter solstice this year. Although the temperature in some parts of the south is still more than ten degrees, according to the weather forecast, it is learned that the cold wave in the New Year will freeze the whole country. What happened? Which areas are mainly affected? Friends who want to know can take a look at the following.

There are still a few days to enter the winter solstice this year. Although the temperature in some parts of the south is still more than ten degrees, according to the weather forecast, it is learned that the cold wave in the New Year will freeze the whole country. What happened? Which areas are mainly affected? Friends who want to know can take a look at the following.

1. What is the situation that the New Year's cold wave will quickly freeze the whole country?

At present, a new year's cold wave that will soon freeze China is brewing and ready to go.

It is estimated that from February 28th 10 to February 28th1,this cold wave will sweep across most parts of China from north to south, bringing "quick freezing" cooling and rain and snow mixing, which will be the strongest cold wave process affecting China this winter.

By then, the temperature in 25 provincial-level cities will hit a new low this winter, and the central and eastern regions will also usher in the coldest New Year's Eve in the past eight years.

2. What areas will be affected by the New Year's cold wave?

1. the central meteorological observatory predicts that there will be a strong cold air affecting the central and eastern regions of China from February 28 to 3 1 day. At that time, strong winds, rain and snow will appear one after another, and the temperature in the eastern part of northwest China, North China, Huanghuai, Jianghan and Jiangnan will reach 10 ~ 12℃, accompanied by 4℃.

2. Zhang Juan, a meteorologist from China Weather Network, said that the cold wave process has the characteristics of quick freezing and cooling, and it will "freeze through" 80% of the country, and the temperature in 25 provincial-level cities will hit a new low this winter.

The most intense cooling period is 12 from February 29th to 30th. For example, the lowest temperature in Changchun and Harbin is only about -26℃, which is extremely cold. The lowest temperature in North China such as Beijing, Shijiazhuang and Tianjin may drop to around-12℃ next week.

3. Among them, the temperature in the south is mostly from 29th to 30th.

For example, in many places in the middle and lower reaches of the Yangtze River, the highest temperature on the 28th is about 15℃, and the highest temperature will drop below 5℃ on the 30th.

On the 30th, the temperature will drop in most parts of South China, and the maximum temperature will drop from 20℃ to about 15℃.

As for the lowest temperature, from 30th to 3rd1day, the lowest temperature at 0℃ will cross the Yangtze River, and the lowest temperatures in big cities, such as Hangzhou, Changsha, Nanchang and Shanghai, will drop below freezing point.

Due to the long forecast time, the public still needs to pay attention to the upcoming forecast.

Third, the cold weather may continue in the future.

1, the high or low temperature in a period of time belongs to the climate category, which is mainly the result of the interaction of atmosphere, ocean, land surface and ice and snow.

If the sun heats the ocean to raise the temperature of seawater by 0.5℃, the warming and evaporation of seawater will affect the atmospheric circulation.

For China, tropical sea surface temperature, Arctic sea ice and Eurasian snow are all important factors affecting winter climate.

2. Yuan Yuan, a researcher in the Climate Prediction Office of the National Climate Center, believes that the main reasons for the low temperature in many places since June+February, 5438 are the "four strong"-the strong meridional circulation in the middle and high latitudes of Europe and Asia, the strong ridge of Ural Mountain high, the strong trough of Balkhash-Baikal low pressure and the Siberian high with obvious sea level pressure field, which make the cold air as a whole.

From the big climate background, the development of La Nina and the abnormal lack of Arctic sea ice are two main external forcing factors.

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