How many processes does it take to form a dusty weather?

The formation of sandstorm weather needs to go through four processes, namely, floating dust weather process, sand blowing weather process, sandstorm weather process and strong sandstorm weather process.

1. Floating dust weather process

In the same weather process, dust and fine sand float evenly in the air, making the horizontal visibility less than 10 km.

Raise sand

The wind blows up the dust on the ground, making the air quite turbid, and the horizontal visibility is in the range of 1 km to1km.

3. Sandstorm weather process

Strong winds blow up a lot of dust on the ground, making the air very turbid, and the horizontal visibility is less than 1 km.

4. Strong sandstorm weather process

Strong winds blow up the dust on the ground, making the air very turbid and the horizontal visibility less than 500 meters.

Due to the uplift of the ancient Mediterranean, a lot of soft silt and dust accumulated. In dry spring, coupled with strong winds and sparse vegetation, there are natural conditions for sandstorms. In arid areas such as the northwest, the prevailing northwest wind and man-made destruction of vegetation increase the probability and intensity of sandstorms.