Meteorological authorities issued a yellow alert on Sunday for rainstorms in south China that will last from Sunday to Monday. Parts of the provincial-level regions of Hunan, Jiangxi, Guangdong and Guangxi will be hit by precipitation of up to 200 mm over a period of 24 hours, Xinhua quoted the China Meteorological Administration (CMA) as saying in a statement. Heavy winds will also hit parts of the Yellow, Huaihe and Yangtze rivers during the same period, the statement said. Experts are warning affected residents to be wary of possible floods or landslides. Chinese meteorological authorities use a four-tier color-coded weather warning system, with red being the most serious, followed by orange, yellow and blue.