The moving path of typhoon

According to the main characteristics of typhoons in the western Pacific, their basic paths can be summarized into three categories, namely, westward moving path, northwest moving path and turning path.

1, move the path to the west.

The typhoon began to move westward from the sea east of the Philippines, crossed the South China Sea, and finally landed in South China, Hainan Island or the coast of Vietnam. The typhoon along this route has a great influence on South China.

2. Northwest moving path

The typhoon moved northwest from the Philippines to the East China Sea, crossed the straits of Taiwan Province Province and Taiwan Province Province, and then landed in Fujian and Guangdong. Or cross the Ryukyu Islands and land along the coast of Jiangsu and Zhejiang. Typhoons along this route often attack the mainland of China and have a great impact on East China and South China, so it is called "landing typhoon path".

3. Turn trajectory

The typhoon first moved to the northwest, and then turned to the northeast in the waters east of the Philippines, showing a parabolic shape. This is the most common path type. Some typhoons turn in the open sea, mainly affecting Japan or disappearing at sea; However, some typhoons turn to the northeast offshore, affecting North Korea, but a small part will turn to the northwest after going north and land in the coastal areas of Liaoning and Shandong in China. In winter, the turning point of this typhoon is the south, which may affect the Philippines and Taiwan Province Province.

The reasons for the formation of typhoons may be:

1. Warm seawater: The formation of typhoons needs warm seawater as energy. Usually, the temperature of seawater is above 26 degrees Celsius, which provides enough heat energy for typhoons.

2. Water vapor supply: Water vapor is an important factor in the formation and development of typhoons. When warm seawater evaporates, a large amount of water vapor is formed, and the water vapor rises to form clouds, further forming clouds.

3. Low vertical wind shear: When a typhoon forms, an environment with small vertical wind shear is needed. Vertical wind shear refers to the difference of wind speed between high altitude and low altitude. Smaller wind shear is beneficial to the formation and development of typhoons.

4. Initial disturbance: Initial disturbance is the starting point of typhoon formation. These disturbances can be tropical waves, convective clouds or other weather systems. When these disturbances encounter suitable environmental conditions, they may gradually develop into typhoons.

5. Monsoon circulation: Monsoon circulation is one of the important factors of typhoon formation. In summer, monsoon circulation in tropical areas will provide more favorable environmental conditions for typhoons.

Baidu Encyclopedia-Typhoon Path