Typhoon Merbok pounds Huizhou, South China's Guangdong province, after landing on the Dapeng Bay in Shenzhen, on June 13, 2017. [Photo/VCG]

China Southern Airlines announced the cancellation of 23 flights to and from Shenzhen after 10 pm on Monday.

From 8 pm on Monday to 8 pm on Tuesday, the northern parts of South China Sea and the central and eastern coasts of Guangdong will experience strong gusts, while storms dumping up to 200 millimeters of rain are expected to affect the central and eastern parts of Guangdong, the National Meteorological Center forecast.