China's national observatory renewed a yellow alert for rainstorms on Sunday, warning of downpours in some regions of the country.

From 8:00 a.m. Sunday to 8:00 a.m. Monday, heavy rain and rainstorms are forecast to hit parts of Jiangsu, Shanghai, Anhui, Henan, Hubei, Hunan, Guizhou, Yunnan, Sichuan, Chongqing, Shaanxi, Inner Mongolia and Heilongjiang, the National Meteorological Center said.

Parts of Jiangsu, Anhui, Hubei, Sichuan, Guizhou and Yunnan are expected to experience torrential rain, with precipitation of up to 230 mm, the center added.

Some of these regions are expected to see brief but heavy rainfall, with maximum hourly precipitation exceeding 80 mm in some areas, accompanied by thunderstorms and gales.

The center has advised local authorities to take precautions for heavy rainstorms and recommended implementing drainage measures in urban areas and across farmlands.

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