Why is the rainy weather sometimes obviously dripping, and sometimes it is raining in Mao Mao?

1. The humidity of each layer is relatively high, and the uplift movement is very strong, that is, dense and heavy raindrops, and there may be strong convective weather such as thunderstorms or hail or even tornadoes. Radar echo images are generally extremely red or even purple representing hail (of course, hail will appear where the V-shaped notch is not purple)

2. The humidity of each layer is relatively high, but the lifting motion is not strong, that is, ordinary raindrops, and radar echo images generally appear blue or yellow.

3. The upper layer has high humidity, and the lower layer (850 hectopascals, 925 hectopascals, generally below 1500m) has low humidity. Raindrops evaporate in the lower layer and will not fall to the ground. There are echoes on the radar echo map, but it doesn't rain.

4. The humidity in the lower layer is relatively high, and the humidity in the upper layer is not high, which is what you call Mao Mao rain. The radar echo map shows light color or no echo.

Moreover, precipitation needs the humidity coordination and vertical lifting movement of the vertical layer (commonly used, for example, the height of 925 hPa is about 700m, the height of 850 hPa is about 1500 m, the height of 700 hPa is about 3000 m, and the height of 500 hPa is about 5500 m). For example, there are thunderstorms and strong winds in spring and summer (strong winds in Lingui 17 in Guangxi some time ago, tornadoes are not sandstorms), hail, short-term heavy precipitation and other strong convective weather. , accompanied by strong uplift movement and heavy raindrops.

This is the rainy weather, why sometimes it is obviously dripping, and sometimes it is the reason for the rain in Mao Mao.