Meteorological and water authorities have warned of possible disasters in parts of Hunan, Guizhou and Guangxi.
The statement urged local authorities to strengthen real-time monitoring and flood warning procedures, prepare for possible evacuation and take precautionary measures to minimize risks.
In a separate update, the National Meteorological Center issued an orange warning for thunderstorms today.
Parts of Jiangsu, Anhui, Shanghai, Zhejiang, Jiangxi, Hubei, Hunan, Guizhou and Guangxi are expecting gale force winds, with some regions likely to experience rainfall of up to 260 millimetres in 24 hours.
China has a four-tier color-coded weather warning system, with red representing the most severe warning, followed by orange, yellow and blue.
The central government recently allocated 496 million yuan (69.59 million U.S. dollars) from its natural disaster relief fund.
According to the Ministries of Finance and Emergency Management, the amount will support search and rescue operations, evacuation of people, detection of secondary disasters and repair of damaged houses.
Earlier this week, a landslide in Douxi Village, Yushi City, Hunan Province, caused four houses to collapse and eight people to die.
Chinese President Xi Jinping has repeatedly called for strengthening disaster monitoring and early warning, identifying hidden risks and dangers in a timely manner, preparing appropriate equipment and materials, perfecting work plans, and effectively dealing with all emergencies.