China's maritime authorities on Wednesday issued a yellow warning for waves brought by the approaching Typhoon Francisco and cold air.
Under the influence of a cold front, the southeast coast was washed by waves over two meters high on Wednesday afternoon, the National Marine Environmental Forecasting Center said.
Francisco, the 27th typhoon of the year, will bring waves as high as six meters to the East China Sea and Taiwan Strait from Wednesday till Thursday night. The typhoon is expected to whip up peaks of up to 3.5 meters along the coast of Shanghai, Zhejiang and Fujian.
China has a four-tier, color-coded weather warning system, with red representing the most severe, followed by orange, yellow and blue.