BEIJING, Sept. 6 -- China's National Meteorological Center renewed a yellow alert for rainstorms on Wednesday evening as heavy downpours are expected to lash parts of south China.

From 8 p.m. Wednesday to 8 p.m. Thursday, heavy downpours and rainstorms are forecast to hit parts of Fujian, Guangdong, Jiangxi, Hunan, Hainan, and Taiwan Island, according to the center.

Some areas of these regions are expected to experience heavy rainfall, with maximum hourly precipitation exceeding 50 millimeters, accompanied by severe convective weather, such as thunderstorms and gales.

The center has advised local governments to prepare for rainstorms. Traffic management departments should implement proper traffic control on road sections hit by heavy downpours and guide traffic on waterlogged sections.

It has also suggested disconnecting at-risk outdoor power supplies, suspending outdoor operations in open areas, and transferring people from dangerous areas to safer places.

China has a four-tier, color-coded weather warning system, with red representing the most severe warning, followed by orange, yellow, and blue.