A new round of large-scale sand and dust weather will hit the north tomorrow. Why are sand and dust so frequent this year?

First of all, the cause of sand and dust weather requires the coordination of favorable weather and geographical conditions. What kind of conditions? First, there are vast sources of sand and dust in a relatively large area at the same time. Weather conditions with strong winds;

The sources of sand and dust mainly come from large areas of exposed sand such as the highly weathered Gobi, exposed muddy bedrock areas, and active desert dunes. The characteristic is that the sand and dust are exposed;

This is one of the sources of sand and dust;

The strong wind on the surface provides the necessary power for the birth of sand and dust weather;

Strong cold and warm weather are prone to interact, with strong winds and airflows above level 8 appearing. When these airflows begin to move at high speed, when passing through dry, sparse and exposed soil dust source areas, the airflow is accompanied by Sand and dust occur.

As for the dust weather that will hit from tomorrow, we can first take a look at where the source of this dust is and what kind of weather conditions it will be like

According to the forecast, Affected by the eastward movement of the high-altitude trough and the eastward and southward movement of weak cold air, the sand source areas in central and western Inner Mongolia have rarely experienced warmer temperatures during the same period. The soil has thawed early and precipitation has continued to decrease. Therefore, in Mongolian cyclones, there are also atmospheric currents brought by cold air. Under the influence, the sand and dust were also swept up and carried away, resulting in a blowing sand situation;

However, fortunately, although the sand and dust process this time is similar to the path affected last time, the intensity of the cyclone is weak. Compared with the intensity of the last cyclone, the sand and dust weather this time will be overall weaker, and the affected areas will not be so extensive.

So what areas will be affected this time?

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

Friends in affected areas must remember to protect themselves and their families’ health from sand and dust weather;

First, try to avoid outdoor activities;

Second, if outdoor activities cannot be avoided, you must wear a dust mask when going out;

Third, try not to open windows indoors during sandy weather and use an air humidifier to prevent particles in the air Floating;

Fourth, the elderly, children, and those with respiratory problems must be cared for more carefully.

Finally, I wish everyone good health.