Strong waves smash into an embankment off eastern coast of south China's Guandong province May 17, 2006. Chanchu- the worst typhoon on record to enter South China Sea in May - is expected to make a landfall at Huilai and Raoping in southern Guangdong province. Almost half a million local residents have been evacuated under threat of swells, according to a Xinhua report. [Xinhua]