Why is Yantai so snowy that it is called "snow nest"?

Speaking of snow, there was just a "Xue Rui" in Weihai yesterday, but it was not big.

Encourage children to cheer and play.

Let's analyze why it snows so heavily every year in Yantai, Weihai. Due to the special geographical location of Yantai and Weihai, the large area of ocean around the two cities has brought abundant water vapor, and the sea surface is full of warm and humid airflow. Second, the terrain. Just look at the whole terrain: in Shandong Peninsula, there are two groups of mountains with obvious east-west trend. First of all, it is located in the south of the peninsula. The second is the mountainous area south of Yantai and Weihai. In this way, after the cold air in the north blows the warm air in the Bohai Sea to this area, the terrain does not rise, and the temperature naturally drops, resulting in snowfall.

When the cold air in the north goes south, it encounters warm and humid air rising from the sea surface over the Yellow Sea, Bohai Sea and Bohai Sea. The combination of hot steam and cold air on the water vapor-rich sea surface will condense into snowflakes and form snowfall. Meteorologically, this kind of snowfall is called "cold current snowfall". This cold current snowfall is common in Shandong Peninsula, so Yantai and Weihai in Shandong Peninsula are called "snow nests".

Continuous snowfall has many benefits to the local ecological environment and air purification. Continuous heavy snow is beneficial to winter wheat and vegetation protection. The temperature is low in winter, and the snow is not easy to melt. Covering the soil blocks the cold air outside, just like covering the crops with a thick quilt. By the next spring, the weather will gradually get warmer, and the melted snow will stay in the soil, which is very beneficial to the growth of crops.

Before answering this question, let me first inform you that the first snow in Weihai, Yantai this year has arrived on165438+1October 30th! According to the situation in previous years, the first snow generally won't fall much, but it is the most wonderful one, and people in the inland of Shandong will be extremely envious.

But why are Yantai and Weihai called "snow nests"? Naturally, because of these two places, there is a lot of snowfall every year, far exceeding other 15 cities in Shandong.

This is inseparable from the unique geographical location and climatic conditions of Yantai and Weihai. Yantai and Weihai are located along the Yellow Sea and Bohai Sea. Unlike most coastal cities in China, these two cities face the sea to the north. As we all know, the heat dissipation rate of water is slower than that of earth and stone, and the heat preservation ability is better. So in winter, the temperature of sea water is higher than that of land. When the dry and cold air from the sea roared south, it met with the warm and wet air from the sea in the Yellow Sea and Bohai Sea, and the warm and wet air was forced to rise and cooled during the rising process, forming rain and snow.

At the same time, the southern part of Yantai and Weihai is the most important mountain-Kunyu Mountain. The sudden elevation of the terrain makes it impossible for the dry and cold airflow from the northwest to continue southward, and the intersection of cold and warm airflow can only occur in Yantai and Weihai at the northern foot of Kunyu Mountain, which is why there are so many snowfalls in these two cities.

Strangely, although it is located at the southern foot of Kunyu Mountain and under the jurisdiction of Weihai City, the snowfall in winter is far less than that in Weihai City.

In the inland area of Shandong, due to the lack of warm and humid airflow in winter, the cold air from Siberia can not be stopped, so abundant snowfall can not be formed.

For this question, the expert of geographical knowledge and tourism information, Geographic Answer, thinks that Yantai and Weihai in Shandong Province have heavy snowfall in winter and are called "snow nests". The main reasons for the formation of "snow nest" are as follows.

First, because of the "mountain", Yantai and Weihai are located on the seashore on the north side of Jiaodong Peninsula, backed by the hills of Jiaodong Mountains, and the elevation from the seashore to the inland suddenly rises.

Second, because of the "sea", Yantai and Weihai are both northward. The air on the ocean is humid and the temperature is higher than that on the land at the same latitude, which creates conditions for the formation of abundant precipitation.

Third, because of the "wind", the climate of Yantai and Weihai belongs to. Whenever winter comes, the cold monsoon pushes from north to south, which provides the driving force for the formation of rain and snow.

Based on the above three factors: mountain, sea and wind, the formation process of heavy snow in Yantai and Weihai can be restored.

Winter has come, and the cold current formed in Siberia is carried by the north wind and goes all the way south. They crossed the vast area almost without being stopped, and then they came to the Yellow Sea. At the moment, there is humid air rising from the Bohai Sea and the Yellow Sea. As moist air rises, it becomes clouds and fog, accumulating moisture. The north wind meets the water vapor, and then continues south together, heading for Yantai and Weihai on the north side of Jiaodong Peninsula. As soon as we reached the coast, the north wind and water vapor were blocked by the mountains, and were forced to rise and condense during the rising process. As they rose, they condensed, and finally formed ice crystals, that is, snowflakes, which fell gracefully in Yantai and Weihai.

Above!

Weihai, a municipality under the jurisdiction of Shandong Province, is located in the east of Shandong Peninsula, bordering the Yellow Sea on three sides, facing the Japanese archipelago in the north, facing the Japanese archipelago across the sea in the east and southeast, and bordering Yantai in the west. As we all know, Weihai and Yantai are called snow nests. Compared with other areas in Shandong, there is obviously more snow in Yantai Weihai every winter. So why is Weihai called Snow Nest? Let's take a look at the causes of snow nests in Weihai.

Why is Weihai called Snow Nest?

The number of snowfall days in Yantai and Weihai in the whole winter is generally around 39 days, which is obviously more than that in other areas. In terms of location, cities near the sea in the north, such as Yantai and Weihai, are rare in China. Shandong Peninsula is close to the Yellow Sea and Bohai Sea, and the sea surface temperature is higher than the inland temperature in winter, which makes the Yellow Sea and Bohai Sea region form a relatively stable warm zone. Because the seawater temperature is higher than the inland land surface in winter, the air above the sea surface is relatively warm and humid and rich in water vapor. When the cold air in the north goes south to the sea surface, the warm and humid air above the sea surface moves upward, and when it reaches a certain height, it will condense into snowflakes and fall down to form snowfall. Meteorologically, this kind of snowfall is called "cold current snowfall". However, because there is not enough water vapor in the inland areas of Shandong, snowfall cannot be formed. After the cold air passes through the sea, it has a certain humidity. On the mainland, because there is this east-west mountain range in the northern part of Shandong Peninsula, in this case, after the terrain rises, snowfall will occur.

Winter in Weihai

(12-February) controlled by the strong Mongolian high pressure, cold air broke out southward continuously, and the climate was dry and cold, mostly northward. Weihai and Yantai are called snow nests. 65438+ 10 is the coldest month in the whole year, and the extreme minimum temperature of the whole year generally appears in 65438+ 10 or early February. The temperature in winter is 2% higher than that in inland areas of the same latitude, and the temperature difference between day and night is small. Seasons are the least in the whole year, accounting for 5% of the whole year. From the end of June to May 438+February, due to the influence of the ocean, the local cloudy and snowy weather increased, the amount of rain and snow was more than three times that of inland areas at the same latitude, and the sunshine hours were less.

I'm glad to answer your question.

Weihai and Yantai are called snow nests because the snowfall in winter in this area is particularly fierce compared with other places in Shandong Peninsula. 20 10+65438 snowfall occurred in this area in early October, and the depth of snow in Yantai city reached 26 cm. In 2005, it was more exaggerated. The snow in Yantai is as deep as 39 cm!

(Photo: China Weather Network)

The frequent occurrence of heavy snowfall in this area is actually because Yantai and Weihai in the northern part of Shandong Peninsula will encounter cold current snowfall in winter.

The cold current snowfall is like this. Simply put, cold air flows over the warm sea.

In winter, the ocean is warmer than the land because of the temperature difference between the land and the ocean. When cold air goes south, cold and warm air meet and form low clouds on the relatively warm sea surface. In addition, when we arrive in Yantai, there will be convergence uplift on the coastline and the east-west mountains, and there will be strong snowfall on the north side of the mountains.

Generally speaking, the stronger the cold air, the higher the sea surface temperature in the Bohai Sea, which is more conducive to heavy snowfall.

If there is a cold current and snowfall, on the one hand, it will be directly affected by strong cold air; On the other hand, it needs a relatively warm water surface in the north, which can meet the conditions at the same time. In fact, there will also be cold current snowfall in Liaodong Peninsula, but both the intensity and frequency of snowfall are not as good as those in the northern part of Shandong Peninsula.

In fact, heavy snowfall often occurs in the United States, which is called the Great Lakes effect. In fact, the principle is very similar to that of cold current snowfall. In late autumn and early winter, cold air passes through the water surface of the Great Lakes, and cold and warm air meet, so there will be heavy snowfall in the downwind area of the Great Lakes, such as Erie near Lake Erie in the United States last Christmas, where the snowfall was very fierce.

Yantai people, a few years ago, had several heavy snows every winter, and the snow was knee-deep. At that time, I was still in junior high school, and many times I didn't have to go to school because of heavy snow.

There has been less heavy snow in recent years, and I still like when it snows.

As a person who has been in Wei Yan for three years, let me tell you something.

Recently it began to snow in Yantai, but it didn't rain much. There was a heavy snow at the end of last year, but I was not in Yantai at that time. The biggest snow in my memory was when I was a freshman three years ago. As a person from the inland area of Shandong, it subverts my understanding of snow. It's the first time I feel so heavy that I can't even hold my umbrella.

Seeing this weather. I was shivering in the dormitory. As a good student, I first thought of skipping classes. What really happened was the heavy snow, and the sky was white. After the snow stopped, I was really blind when I went out. It's the first time for me to see: the scenery in the north is frozen for thousands of miles, and the snow is floating in Wan Li.

There are even forklifts pushing snow in the school, which I have never seen before. But then again, why is Wei Yan a veritable "snow nest"?

Yantai's unique geographical location leads to heavy snowfall and frequent snowfall, which is the main reason for becoming a "snow nest".

Because the northern part of Yantai is close to the Bohai Sea and the Yellow Sea, there is no mountain block, and the cold air in the north can reach the coastal area of Yantai directly. If there are mountains in the north of Yantai, the influence of cold air from the north on Yantai will not be so strong every time. The cold air from the north goes south and meets the warm and humid air rising from the sea surface over the Yellow Sea and Bohai Sea. The combination of hot steam and cold air with rich water vapor will condense into ice crystals and eventually form snowfall. In meteorology, this kind of snowfall is called "cold current snowfall" and it is also a common form of snowfall in Yantai.

The formation of "cold flow snowfall" requires special conditions. It is also in Yantai area. Qixia and Laiyang are separated by mountains, and there is no warm and humid air near the surface. Therefore, even if you encounter cold air from the south, it is not easy to form snowfall, and the average annual snowfall will be lower than that in Yantai city.

Yantai's special terrain has played a great role in the formation of "cold flow snowfall". The uplift of coastal hills and mountains in the northeast of Yantai is the trigger condition for the formation of low cloud areas. Yantai is just to the north of the mountains. When there is a northwest wind blowing, warm air near the sea will climb along the hills, which will also increase the snowfall. Therefore, this kind of "cold flow snowfall" is often the largest and more frequent along the northern coast of Yantai, and the "snow nest" comes from it.

Yantai is the earliest place where it snows in Shandong.

The number of times per year is the highest and the thickest.

It hasn't snowed in Shanghai yet.

I don't like snow very much.

It's cold when it snows.

Because it is foggy in summer and snows a little more in winter, and the geographical position is low, it is called a snow nest, and it doesn't snow now.

There is a warm current in the western Pacific Ocean, which travels generally southward along the Japanese archipelago. Affected by this, although Hokkaido, Japan has the same latitude as Heilongjiang, the winter temperature does not exceed MINUS 10 degrees. Because it is the intersection of cold current and warm current, there is a lot of snowfall, and this warm current affects a large area. Yantai and Weihai are on the edge of this warm current, and the warm and humid air brought by the warm current meets the cold air to produce snowfall. This original geography book is about it.