It snowed heavily at first, so why did it snow so heavily this year?

Because many parts of the country are affected by La Nina phenomenon.

Under the influence of La Nina phenomenon, we can see that there is heavy snow in many places. To some extent, many cities should only cool down at the same time, and it won't snow so heavily. It is precisely because cities all over the country are generally affected by La Nina phenomenon that the cooling rate in many places is very exaggerated, and some places even reach the cooling rate of about 18 degrees, which directly leads to the first snow in many places, and the first snow becomes a blizzard.

First, what is this thing?

This is news about snow all over the country. Affected by a wide range of cold air, heavy snow fell in many cities across the country. For many cities, because the temperature drop in many cities is very large, the first snow in many cities has directly turned into a blizzard, and the lives of some citizens have also been seriously affected. Under such circumstances, citizens need to prepare for the cold in advance.

Second, the reason for this kind of thing is La Nina phenomenon.

As I said above, La Nina phenomenon is the main cause of heavy snow in many cities. I have read many meteorologists' research articles, because many cities in the north have been seriously affected by La Nina phenomenon, and the cold wave airflow from the north has moved southward in a large scale, which directly leads to the exaggeration of the cooling rate in many areas. In this case, if cold air meets wet air, there will be a local snowstorm.

Third, this incident also reminds us of environmental protection.

To some extent, such extreme weather has occurred in many parts of the world. We can feel the intense hot weather in summer and the large-scale snowstorm weather in winter. This is because human social activities have played a very important role. I think each of us needs to have a strong sense of environmental protection. After all, protecting the environment means protecting ourselves.