Classes in Baotou, Inner Mongolia were suspended due to sandstorm. How is the sandstorm weather formed?

The weather in March 2002/KLOC-0 seems to be somewhat abnormal. Sandstorms have appeared in many places, and the sandstorm weather in Baotou, Inner Mongolia is also obvious. There was a sandstorm warning forecast in Baotou on March 14, and this sandstorm weather brought very serious damage, and the visibility was too low, which made it inconvenient to travel. Therefore, the relevant education departments require an emergency holiday. All kindergartens, primary schools and junior high schools in Baotou are on holiday, and high schools are busy. Consider taking a half-day holiday. The specific class time is organized according to the sandstorm, and there is no way for human beings to stop it in the face of sandstorm weather.

One of the conditions for sandstorm formation is strong wind. The main reason for the formation of sandstorms is that the wind is relatively strong nearby, the wind speed is relatively high, and there is some dust around. In this case, there will be a strong wind to blow up the dust on the ground, and then the air will become very turbid, which will form a sandstorm, and the greater the wind speed, the more serious the sandstorm will be. Sandstorm is also a phenomenon of desertification. It will not only do great harm to human beings, but also do great harm to nature. In addition to strong winds, sandstorms have less water sources and less sand sources. There are many sandstorms near Inner Mongolia. If there is strong wind, it is very vulnerable to sandstorms.

Sandstorms easily occur in spring and winter festivals. The monsoon is relatively strong in spring and summer, with less precipitation. In this case, it is relatively dry. Under normal circumstances, if there is more water, the surface will be relatively wet and plants will grow on it. Even if the wind is strong, it is difficult to form a sandstorm. The sandstorm weather in March is mainly caused by drought. Semi-arid spring leads to less precipitation in the local area, and then the dust will be loose. As long as the wind blows, it will fly with the wind.

In the face of sandstorm weather, we must reduce travel, because it will reduce visibility. It is very dangerous to travel if you can't see clearly, and it is also very harmful to human breathing. Therefore, in the face of this situation, Inner Mongolia will arrange for students to suspend classes.