China's National Meteorological Center on Saturday issued a yellow alert for Typhoon Kajiki, warning that it is likely to make landfall or pass close to the southern coast of Hainan Island around Sunday evening. Parts of Hainan Island, and the Xisha Islands and the Zhongsha Islands were expected to see heavy to torrential rainfall from Saturday to Sunday, it said. China has a four-tier emergency response system, with Level I being the most severe response, and a four-tier weather warning system, with red representing the most severe warning, followed by orange, yellow and blue. News.Az