Heilongjiang ushered in the coldest day in 50 years. How did this extremely cold weather come about?

It started from our impression that the winter in Heilongjiang is particularly cold, mostly at MINUS 20 degrees, but the temperature in Heilongjiang dropped rapidly in the past two days, reaching MINUS 40 degrees. It is reported that this is the coldest day in Heilongjiang in 50 years, so do you know how this extremely cold weather is formed?

Such a low temperature is mainly related to the cold wave. When the outside cold wave reaches a place, it will lead to a rapid drop in the temperature in the area. Secondly, it is related to geographical location. Heilongjiang is located in the northeast, facing the cold air from outside, so the outside has changed a little. It has a great influence on the climate in Heilongjiang. Finally, because of the global climate, the temperature is low this year, which may be related to the state of the equator.

For everyone, most parts of the country have been hit by a cold current this year. Everyone must do a good job of keeping warm, pay attention to safety when driving to work, be careful of slippery roads, and wear more clothes when going out to prevent frostbite. Turn on the heating if you have it at home, and don't save any money if you have air conditioning. Your body is your own. You should know that getting sick costs more. Finally, I hope everyone will spend every day safely and happily in the new year.

Refer to Heilongjiang Province for reference. Black? A provincial administrative region of People's Republic of China (PRC), with Harbin as its capital. Heilongjiang Province is located in the northeast of China, facing Russia across the river in the north and east, bordering Inner Mongolia in the west and Jilin Province in the south. It is the northernmost provincial administrative region in China and the easternmost provincial administrative region on land, between 12 1? 1 1? 135? 05? , 43 north latitude? 26? 53? 33? In the meantime, the total area of the jurisdiction is 473,000 square kilometers, ranking sixth in the country. The boundary line is 298 1.26 km long.

According to Tang Yu 'ang, comprehensive salesman of Mohe Meteorological Bureau, one of the reasons for this year's extremely cold weather is that the northern polar vortex is weak and the Arctic air mass is covered. Squeeze? Pressure and cold air broke out in the south, leading to a wide range of cold wave weather; Second, the equatorial Middle East Pacific Ocean is in La Nina state, and the sea surface temperature continues to be abnormally cold, which increases the probability of cold winter in China; Third, the meridional enhancement of the circulation in the middle and high latitudes in Europe and Asia has accelerated the southward impact of polar cold air, resulting in a large-scale cooling.