What do you mean by dusty weather? What do you mean by dusty weather?

1. Sandstorm weather is the general term for sandstorm, sand blowing and floating dust weather. It is a kind of atmospheric turbidity phenomenon caused by strong wind blowing (rolling) the dust on the ground or being carried to the downstream area by high-altitude airflow. According to the visibility and wind speed, it is divided into five grades: floating dust, sand blowing, sandstorm, strong sandstorm and extra-strong sandstorm.

2. Concept of sandstorm weather: Sandstorm weather can be divided into four categories: floating dust, sand blowing, sandstorm and strong sandstorm. Floating dust: a weather phenomenon in which dust and fine sand float evenly in the air, making the horizontal visibility less than 10 km; Sand blowing: a weather phenomenon in which the wind blows up dust on the ground, making the air quite turbid and the horizontal visibility is within the range of 1 km to1km; Sandstorm: a weather phenomenon in which 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; Strong sandstorm: a weather phenomenon in which strong winds blow up dust on the ground, making the air fuzzy and turbid, and the horizontal visibility is less than 500 meters.