BEIJING - China's national observatory renewed its orange alert Monday for a cold front set to sweep central and eastern China from Monday evening.

From Monday to Thursday, temperatures across most of central and eastern China are expected to drop by 6 to 10 degrees Celsius, according to the National Meteorological Center (NMC).

In some parts of Henan, Anhui, Hubei and Hunan provinces, temperatures will drop by up to 16 degrees Celsius, said the NMC.

The cold front will be accompanied by gales, rain and snow, according to the NMC.

The NMC warned the public about possible transportation disruptions due to the weather.

China has a four-tier warning system for severe weather, with red being the most serious, followed by orange, yellow and blue.