Traditional Culture Encyclopedia - Weather forecast - Beijing-Tianjin-Hebei will encounter extreme heavy rain and obvious strong convective weather. What is the reason for this bad weather?

Beijing-Tianjin-Hebei will encounter extreme heavy rain and obvious strong convective weather. What is the reason for this bad weather?

Introduction: Every summer, there will be heavy rainfall in North China and South China, and even typhoons and other climatic phenomena will appear in the southeast coastal areas of China. In the summer rainstorm, people should never drive and be careful when crossing the road. Heavy rain is also fatal to people. After the rainstorm, there will be water on the road surface, and the manhole covers in many places will be flooded by the rainstorm. Pedestrians should be careful. Let's take a look at the rainstorm and convective weather in Beijing, Tianjin and Hebei with Bian Xiao. What is the reason for this bad weather?

First, cold air transit

Every summer, there is a cold air from the north to the south, and the temperature in the north is lower than that in the south. From northeast to southwest, there will be a strong cold air going south, which is called frontal rain belt. The weather in this area was sunny before it crossed the border. When it crosses the border, there will be heavy precipitation and heavy rain in this area, and when it crosses the border, it will have a small-scale education. After he leaves, the area will be cloudy and sunny.

Second, cold high pressure.

Every summer, there will be high pressure from Siberia and Asia, because in the Pacific Ocean, the ocean area is vast and the specific heat capacity is low, so the temperature in the ocean area is low, and the inland area is high due to the influence of altitude and weather temperature, so there will be high pressure in the mainland, and the phenomenon of high pressure will gradually advance from north to south. In July every year, there is a large range of rainfall in North China, that is, Beijing-Tianjin-Hebei region, which is why there is a rainy season every year.

Third, the rainy season.

There is a rainy season every year. Meiyu is a climatic phenomenon that gradually advances from the southeast coastal areas of China to the north. When the warm air flow in the south meets the cold air flow in the northeast, there will be heavy rainfall. The Beijing-Tianjin-Hebei region is the most vulnerable to the intersection of airflow, and it is a flat North China region. There will be plum rains in Beijing, Hebei and other regions in July and August every year.