When does the typhoon land?

This year's No.5 typhoon "Du" intensified into a strong typhoon at 8: 00 a.m. on July 24th, and its center was located at 6: 5438+04 p.m. in the east of Luzon Island, about 900 kilometers southeast of Taiwan Province Province ... It is estimated that its strongest force can reach the super typhoon level, and it will enter the northeast of the South China Sea on the 27th and land in the coastal area from central Fujian to eastern Guangdong on the 28th (typhoon level or strong typhoon level). After landing, it will turn to the north and move further inland.

Affected by it, from 24th to 29th, there will be 9 ~ 1 1 gale and 2 ~14 gust in the southeast sea area of China and the coastal areas of Fujian and Taiwan, and there will be heavy rain or rainstorm in some areas of Taiwan Province province, Fujian, Zhejiang, Guangdong and Jiangxi.

Introduce the causes of typhoon formation:

1. The temperature is hot in summer, and the sea surface temperature is above 26 degrees Celsius. The heat of sunlight will quickly evaporate seawater, and water vapor will form cumulus clouds in the air. The higher the temperature, the faster the water evaporates and the more cumulus clouds are formed.

2. The ocean area must be large enough. Only in the Pacific Ocean and Atlantic Ocean can typhoons and hurricanes form, which are collectively called tropical storms. The coast of China is the Pacific Ocean, the storm in the Pacific Ocean is a typhoon, and the European and American countries are the Atlantic Ocean. Tropical storms formed in the Atlantic Ocean are hurricanes. Typhoons and hurricanes are the same in nature, but they have different names in different sea areas.

3. Two air currents in the ocean form a vortex in the air, such as the northwest wind in the Pacific Ocean. When encountering the southeast wind from Australia, the two air streams meet to form a vortex flow, and a large number of water vapor cumulus clouds accumulate in the vortex flow, forming a huge typhoon eye within 3 to 4 days.