It will start in Dalian tomorrow.

First of all, the cause of sandstorm weather needs the cooperation of favorable weather conditions. What kind of conditions? First, there are a wide range of dust sources and windy weather conditions in a large area;

The source of dust mainly comes from the heavily weathered Gobi, exposed muddy bedrock area, desert active sand dunes and other large exposed sandy land, which has the common characteristics of dust exposure;

This is one of the sources of dust;

The strong wind on the surface provides the necessary power for the birth of dusty weather;

Strong cold and warm weather is easy to influence each other, and there will be strong winds and airflow above 8. When these air currents start to run at high speed and pass through the dry, sparse and bare soil dust source area, the air currents will be accompanied by dust, resulting in dusty weather.

As for the dusty weather that will strike tomorrow, we can first look at where the dust comes from and what kind of weather conditions it is.

According to the forecast, due to the eastward movement of the upper trough and weak cold air, the warm range of sand source in the central and western Inner Mongolia is rare in the same period, the soil thaws ahead of schedule, and the precipitation continues to be less. Therefore, under the influence of the large airflow brought by Mongolian cyclone and cold air, the dust is also rolled up and taken away, forming a sand blowing situation;

Fortunately, although the dust process this time is similar to the last time, the cyclone intensity is weaker than the last time, so the dust weather this time will be weaker as a whole and the affected area will not be so wide.

So where will it affect this time?

Gansu, Inner Mongolia, Ningxia, Shaanxi, Shanxi, Hebei, Beijing, Tianjin, Liaoning, Shandong and other regions will still be affected by this dusty weather.

Friends in the affected areas must remember to protect themselves and their families' health in dusty weather;

First, try to avoid outdoor activities;

Second, if you can't avoid outdoor activities, you must wear a dust mask when you go out;

Third, try not to open windows indoors in sand-blowing weather, and use an air humidifier to prevent particles in the air from drifting;

Fourth, the elderly and children with respiratory diseases should be cared for more carefully.

Finally, I wish everyone good health.