Which city has the most serious sandstorm?

The cities with serious sandstorms are the surrounding areas of Tarim Basin, and Turpan-Hami Basin passes through Hexi Corridor and Ningxia Plain to northern Shaanxi, Alashan Plateau, Hetao Plain and Ordos Plateau in Inner Mongolia. North China, Chifeng and Zhangjiakou directly affect the security of the capital Beijing.

The center of Tarim Basin is 330,000 square kilometers of Taklimakan Desert. In spring and summer, the temperature in Taklimakan desert rises sharply, and it is easy to form thermal depression in the basin. The low-level airflow in the basin converges and rises strongly, and the cold air around the basin quickly supplements, forming a fierce wind, blowing up the dust in the desert and making the air very turbid. Therefore, the sandstorms in Keping occur most frequently in spring and summer every year, especially in June, with an average of 7.9 days.

In Keping county, it is mainly mountainous, but the east is plain. In autumn and winter, strong cold air often invades from the eastern plain of Keping, causing windy weather, and the wind blows up dust and sandstorms. Because Keping has windy weather all year round and is close to the desert, it has become the place where sandstorms occur most frequently in China.