3月31日，敦煌市遭遇沙尘暴袭击，空气中弥漫着呛人的沙土味。从早上6点开始，刮起了6级大风，大风卷起黄沙遮天蔽日，市区能见度不足50米，早上9点30分，能见度已经下降到不足20米。
A sandstorm hit the city of Dunhuang on March 31, 2015. The city, famous of the Mogao Grottoes, was shrouded by the first sandstorm in this spring, which reduced visibility to less than 200 meters. [Photo: chinanews.com]