There is widespread sand and dust weather in the north again. Why are sand and dust so frequent this year?

According to the official Weibo of China Weather Network, large-scale sand and dust weather has struck again in the north. Among them, on the 25th, there were blowing sand or dust in eastern Xinjiang and the southern Xinjiang basin, western Inner Mongolia, northern and eastern Qinghai, central and northern Gansu, Ningxia, and northwest Shaanxi, and there were local sandstorms in northwest Inner Mongolia, central Gansu, and other places. The sand and dust weather process from the 26th to the 28th will be larger in scope and stronger in intensity. The public should pay attention to the nowcast and take precautions.

So far, my country has experienced five large-scale sand and dust weather events this year. Among them, the sand and dust weather that occurred in the northwest region on the 14th and 15th was the most intense sand and dust weather that China has encountered in the past 10 years. During the process, the scope of sandstorms was also the widest in the past 10 years. Faced with this situation, many friends in the north can't help but feel uneasy: Why are there so many dusty weather this year? Could it be that the Shachen family is coming back to the world again? ?

What is the reason for the frequent occurrence of sand and dust weather this year? Zhang Juan, an analyst at China Weather Network, said that since mid-to-late February, many places in the north have experienced abnormally warm temperatures. The sand source areas in central and western Inner Mongolia have experienced unusually warm temperatures during the same period. The soil has thawed early and precipitation has continued to be low. Similar conditions have also occurred in Mongolia. situation, so under the influence of strong winds brought by Mongolian cyclones and cold air, sand and dust weather processes will frequently be set off.

In addition, March and April every year are the time when sand and dust weather occurs frequently. In addition, the temperature returned quickly this spring, and the soil thawed and loosened in advance. As long as cold air passes by, it is easy to blow up the floating soil on the soil surface to form sandy weather. Therefore, there is no need to worry about frequent sand and dust weather, just pay attention to protection.

Activities outside in sandy weather are extremely harmful to the human body. Inhalation of fine sand particles into the body is likely to cause respiratory diseases, and blowing on the face can also cause great damage to human skin. Therefore, in sandy and dusty weather, the public should try to reduce outdoor activities as much as possible. If you need to go out, it is best to wear a mask and take sand prevention measures.