China News Service, April 20. According to the website of the Central Meteorological Observatory, the Central Meteorological Observatory continued to issue a blue warning for sand and dust storms at 18:00 on April 20: Affected by strong winds and sand and dust transmission, it is expected that Xinjiang will be affected from 20:00 on the 20th to 20:00 on the 21st. The southern Xinjiang Basin, the central and western and southeastern Inner Mongolia, Ningxia, central and northern Shaanxi, central and northern Shanxi, Hebei, Beijing, Tianjin, western Jilin, Heilongjiang and other places have blowing sand or floating dust weather, among which there are local sandstorms in Inner Mongolia.