What is sand blowing weather? How is it 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:

National defense guide

1. The government and relevant departments should do a good job in gale prevention according to their duties.

2. Close the doors and windows, reinforce the structures that are easy to be blown by the wind, such as hoardings, scaffolding and billboards, properly arrange outdoor items that are easily affected by strong winds, and cover building materials.

3. Pedestrians should take care to ride bicycles as little as possible, and don't stay under billboards and temporary structures when it is windy.

4. Relevant departments and units attach importance to forest fire prevention.