Will Yunnan be affected by typhoons?

Yunnan will be affected by the typhoon.

Yunnan is located in the southwest of China, far from the ocean, so it is not easily affected by typhoons. Because typhoons are mainly generated in the Pacific Ocean and the South China Sea and move to the coast of East Asia, Yunnan is located inland and far from the ocean, so the impact of typhoons on Yunnan is relatively small.

However, although Yunnan will not be directly attacked by the typhoon, the cyclone belt and precipitation belt around it may affect the climate and weather in Yunnan after the typhoon has passed. When the typhoon is generated and moved along the coast of East Asia, the cloud system and precipitation around it may extend to Yunnan, bringing some rainfall and wind enhancement to Yunnan.

In this case, disasters such as heavy rainfall, local floods, mountain torrents and mudslides may occur in Yunnan. Especially in the mountainous areas of Yunnan, due to the complex terrain and steep terrain, it is prone to disasters such as flash floods and mudslides. Therefore, during the typhoon, it is necessary to strengthen the monitoring and early warning of rainfall and flood in Yunnan, and take corresponding preventive measures to reduce the occurrence and loss of disasters.

Causes of typhoon formation:

1, warm ocean surface temperature

A typhoon needs enough heat energy to maintain its life and development. When the ocean surface temperature reaches 26.5 degrees Celsius or higher, the water vapor on the ocean surface will evaporate and rise rapidly. The release of this heat energy provides power for the formation and maintenance of typhoons.

2, the supply of water vapor

On the warm ocean surface, water vapor will evaporate and rise rapidly, forming a large amount of water vapor. These water vapor will enter the typhoon center with the updraft and condense into clouds. The latent heat released by this condensation further strengthens the tropical cyclone of the typhoon.

3. Moderate vertical wind shear

Vertical wind shear refers to the difference of wind direction and wind speed between high altitude and low altitude. Moderate vertical wind shear is helpful to the formation of typhoon. It can help to remove the air around the typhoon center and make the central area form a lower air pressure. At the same time, vertical wind shear is also helpful to transport the heat energy of typhoon to high altitude, further enhancing the development of typhoon.

4. Adequate humidity

Humidity is one of the important conditions for typhoon formation. When the humidity is high enough, a large amount of water vapor can provide the water vapor needed by the typhoon. These water vapor will enter the typhoon center with the updraft and condense into clouds and precipitation.

5. Moderate Earth rotation

The rotation of the earth also has a certain influence on the formation of typhoons. Due to the rotation of the earth, the atmosphere near the equator will also rotate. This rotation causes air to gather in the low pressure area, forming a rotating cyclone. With the continuous development of tropical cyclones, this rotation is gradually strengthened, forming a rotating storm structure of typhoons.