Was there a rainstorm in Hainan for two consecutive days when the typhoon hit?

16 At 05: 00 on July 5, 2023, the center of Typhoon No.4 "Lee Tae" was located in the northeast of the South China Sea about 2 15 kilometers south of Dongsha Island. It is expected to move to the northwest at a speed of about 15 km per hour, and the intensity will gradually increase. It will land on the coast from Taishan in Guangdong to Wenchang in Hainan at night on 17 (typhoon level or strong typhoon level), enter Beibu Gulf on 18, and then move to the northern coast of Vietnam and the coast of Guangxi.

Affected by Typhoon Lee Tae and monsoon clouds, there will be a strong wind and rain weather process in Hainan Island. During the night of July 16 to 18, the winds in Wenchang, Qionghai and Lingshui increased to 10 to1,and the gusts were 12 to 13. The rotating wind range of the nearby sea surface passing by "Teli" center is 13 ~ 15. From July 16 to July 18, the northern, central, eastern and western parts of Hainan Island were cloudy with heavy rain. The southern part of Hainan Island is cloudy on cloudy days, with thunderstorms and partial heavy rain.

The formation process of rainfall:

1, water vapor rises

After water evaporates on the surface, water vapor will rise into the air. This process is usually more common in the tropics because the temperature is higher in the tropics.

2. Steam cooling

As the water vapor rises to a higher height, the temperature will gradually decrease. If the temperature of water vapor is lower than the current dew point (that is, the temperature at which water vapor can condense), water vapor will condense into water droplets.

3, water droplets accumulation

When water droplets condense below the dew point, they will start to gather around. If there are enough water droplets, clouds will form.

4. Cloud fading

If there are enough water droplets in the cloud, gravity will pull the cloud down. When the clouds reach the ground, water droplets will fall in the form of rain.