The typhoon path is related to the location of subtropical high. Generally speaking, the position of the ridge line of subtropical high in July is about 30 degrees north latitude, and typhoons always appear in the tropical ocean on the south side of subtropical high, and then move northwest along the southeast airflow on the south side of subtropical high. In midsummer, the subtropical high often penetrates into China from the sea, and the typhoon will land on the southeast coast of China under the guidance of the southeast airflow south of it.

The coastal area south of Zhejiang is under the southeast airflow on the south side of subtropical high, and typhoons have landed in this area many times. In fact, Zhejiang, Fujian, Guangdong and Taiwan provinces in China are the provinces most seriously affected by typhoons. Most typhoons that landed in Zhejiang, Fujian and Taiwan Province were generated in the vast Pacific Northwest. Some typhoons that landed in Guangdong were generated in the South China Sea, while others landed in the South China Sea from the western Pacific via bashi channel or the Philippines south of Taiwan Province Province.

Typhoons that land in Fujian usually land on Taiwan Province Island first. Affected by the topography of Taiwan Province Province, a typhoon landed on the land of Taiwan Province Province and crossed the central mountain range of Taiwan Province Province, which would lose a lot of energy, thus weakening the typhoon. When he landed on the coast of Fujian, the intensity had weakened a lot.

Because the coast of Zhejiang faces the East China Sea and the Pacific Ocean, unlike the coast of Fujian, there is no obstacle from the mountains of Taiwan Province Province, so the typhoon that landed in the south of Zhejiang did not suffer any losses during its journey. Therefore, southern Zhejiang often suffers from severe typhoons.

Typhoons landing in Guangdong are basically generated and strengthened in the South China Sea. There are also some typhoons from the western Pacific. Generally speaking, typhoons coming from the western Pacific and landing in Guangdong are relatively strong.

The lower the air pressure in the typhoon center, the stronger the maximum wind force near the center, and the greater the destructive power of the typhoon.

The maximum wind force near the tropical storm center of 980-975 hectopascals is 8-9.

Maximum wind force near the tropical storm center of 975-970 hectopascals 10- 1 1.

Maximum wind force near typhoon center of 970-960 hectopascals 12- 13.

Maximum wind force near typhoon center of 960-940 hectopascals 13- 15.

The maximum wind force near the super typhoon center below 940 hectopascals is greater than 16.