National Meteorological Centre advanced the early fog warning from blue to yellow on December 5th at 6:00 p.m. It predicts that the fog in some parts of the north China plain and regions south of the Yangtze River will continue to December 7th. Among them, Capital Areas, south central of Hebei, west of Shandong, southeast of Shanxi, north and southwest of Zhejiang, northwest of Fujian, south central of Jiangxi province, southwest of Hunan and other areas have fog with visibility lacking 1000 meters. In some areas visibility is down to 200 meters. With the cold air moving to the south, the fog area will evaporate from the north to the south from December 7th.

From December 6th, a stream of heavy cold air carrying strong winds will hit China's middle eastern region. Central Inner Mongolia，south of Northeast China, northern and eastern areas of Northern China, east of Huanghuai, Jianghuai, east of Jiangnan and other areas will cool between 10-12℃, with some areas cooling around 12～14℃.