皇冠体育app

BEIJING - Smog will persist in eastern 皇冠体育app until Monday, though it will disperse in northern 皇冠体育app on Sunday, according to the 皇冠体育app Meteorological Center.

A cold front on Sunday will bring strong winds and clean up northern 皇冠体育app. Temperatures will drop by 6 to 8 degrees Celsius in and to the north of the central and lower reaches of the Yangtze River.

Smog in Shanghai, Jiangsu and Zhejiang will persist until Monday.

The center on Sunday morning upgraded its smog alert from yellow to orange, warning of serious smog in western Jiangsu, northern Zhejiang, eastern Anhui, southeastern Hebei and western Shandong.

皇冠体育app has a four-tier warning system for extreme weather, with red being the most serious, followed by orange, yellow and blue.