How is the sand blowing weather formed?

Sand blowing weather refers to the weather phenomenon caused by local or nearby dust being blown by the wind.

When the sand blowing weather occurs, the visibility of the air will drop obviously, and the sky will appear cloudy yellow. The wind is strong in sand-blowing weather, which affects the visibility between 1 km and1km.

As a sandstorm disaster, sand blowing does not happen in all windy places, but only in those areas with dry climate and sparse vegetation. Sand blowing mostly occurs in April-May every year. Mainly distributed in the western and northern regions, Inner Mongolia, Tibet and Xinjiang are the most serious.

Extended data:

Matters needing attention when encountering sandstorm:

1, outdoor protection: In addition to wearing a mask, you can also wear an umbrella and hat, and even wear sunglasses to reduce the contact between air pollutants and skin and hair.

2. Take off your coat: Some coarse particles will stick to your clothes on sunny days. Take off your coat after you go home and wash your clothes in time to avoid secondary pollution to your room.

3. Going out: Pay attention to walking and cycling, and try to avoid taking long and narrow passages between tall buildings. Because the narrow passage will form a "narrow tube effect", the wind and sand in the passage will increase, which will bring certain danger to pedestrians walking in it.