The Meteorological Observatory of Jiuquan City, Gansu Province issued an orange warning of high temperature on the morning of 19 June: it is expected that from 19 to 21, Dunhuang City, Guazhou County, and Jinta County will have high temperatures above 37 ℃, and the highest temperature in some towns and townships will reach more than 39 ℃. In Dunhuang, the local meteorological station also issued an early warning that the highest daily temperature in Yadan, Yumenguan and other places could reach 39 ℃. Please take precautions.