Why does it often rain or snow in Weihai?

Let's talk about science first. Weihai used to be under the jurisdiction of Yantai. Why does it often snow heavily in Yantai and Weihai in winter? According to the explanation of the meteorological department, the snowfall in Yantai and Weihai is "cold current snowfall", which is a unique weather situation in the Bohai Rim region. Mainly refers to the high-altitude strong cold air meets the warm and humid air on the ocean surface when it goes south, and the two sides meet to produce snowfall.

Everyone here may not be clear about it, but in fact, just look at the special geographical location of Yantai and Weihai. Yantai faces the sea to the north, and Hengshan in Penglai Oilfield is connected with Laotieshan in Lushun, Liaoning Province, forming the boundary between the Yellow Sea and the Bohai Sea. Yantai is also a rare city in China with a sea to the north. There is such a description in the article "The Sea of Yantai": "Say goodbye to the dignified winter, the lightness of spring and the romance of summer, and the sea in autumn is a little richer and busier. Fishermen sail out to sea, cargo ships anchor and set sail ... ",which shows that the geographical position of Yantai Weihai is very good.

Compared with land, the ocean is a heat source. When the north wind blows in winter, the bottom of the cold air is heated when it passes through the sea, bringing rich water vapor. There are hills and mountains in the middle of Shandong Peninsula, which block and rub cold air, gather and condense on the north bank of the peninsula, and form strong local cold advection snowfall. So the cold air is coming, and it is easy to snow in Yantai Weihai. If the cold air is strong, there will be heavy snow, blizzard, hence the name "Snow Nest" in Weihai, Yantai.

Due to the limited area of Bohai Sea, the cause of cold current snowfall in Shandong Peninsula is different from the Great Lakes effect in the United States and smaller than that in Japan.

Because there is always new cold air to the west of the cold vortex, it will also cause continuous snowfall here. In addition, the topography and climatic conditions in Weihai also play a decisive role in snowfall.

It snows in Weihai and Yantai almost every winter. Because it is located in the northern part of Shandong Peninsula, a large area of ocean around the two cities has brought rich water vapor, and the uplift of the hilly terrain of Shandong Peninsula has also caused large-scale snowfall in the two cities!

In fact, whether it snows depends on whether there is water vapor, whether the temperature is suitable, and whether it reaches the central air pressure. Topographically, Qingdao is located in a concave harbor. In winter, most of the mainland areas have temperate continental climate, which is more influenced by the ocean, so the temperature is higher, and it is difficult to snow even with water vapor.

In terms of air pressure, Weihai's topography is relatively flat, which has little influence on air pressure, while Qingdao is at the junction of continental air pressure and ocean air pressure, so the central air pressure is not easy to form and there is less snowfall.

There is more snowfall in northern Yantai and parts of Wendeng in Weihai, and there will be several blizzards from time to time. It's not that the demon wrapped in white is not enchanting, but it means a little snowstorm, commonly known as "snow nest". The appearance of this weather phenomenon is closely related to geographical location. First, the Siberian cold current often mentioned in the weather forecast; Second, the sea is easily caught by the cold current because of the high water vapor in the north; Third, it is located in the hilly area, which is conducive to blocking and effectively intercepting precipitation. However, in recent years, the situation has changed a lot. Experts say all day that global warming and snowfall are really small, which fully proves that experts are sometimes right. It is necessary to have more snow this winter to alleviate the drought in Wei Yan in recent three years.

On the northern coast of Wei Yan, the north wind blows in winter, and the wind brings a lot of water vapor from the sea. The southern part of Wei Yan is mountainous, and the water vapor is blocked when it reaches the land, which is easy to form snowfall. But some people upstairs say that the snowstorm is a bit exaggerated. Although there is a lot of blood in Wei Yan, the ability to clean and treat snow in the two places is the strongest in China, and the winter air in Erer is the best in Shandong Province, which is not unrelated to the purification effect of snow. Although there are frequent snowstorms in Yantai and Weiwei, they have not caused disasters. On October 20 18 1 month, there was a snowstorm in Wendeng, and Weihai had made full preparations and measures to deal with the snowfall. The smoke after the snow, wrapped in white, is particularly enchanting. The sea is blue, the earth is white, the trees are covered with white snow flowers, and then watching seagulls fly back and forth by the sea, the world is so quiet and beautiful. Welcome to Wei Yan to see the snow in winter.

First, Yantai and Weihai are coastal cities with sufficient warm and humid air currents on the sea surface. Secondly, it is geographical location. Just look at the topography of the whole Shandong Peninsula. Although Yantai and Weihai belong to East China, they are close to Liaoning Province in the northeast, especially Dalian! Therefore, the climate change in Yantai and Weihai after winter should come from the northeast.

It's amazing that you drove to Rongcheng Huanhai Road on a snowy day. Xiekoudao sea-crossing bridge is several hundred meters, with snow10cm thick in the north and 3cm in the south. Further south, after the Bahegang Dam, the land in the south of the dam has just been built, and it feels a little snowy when we arrive at Shidao. It's amazing.