Southern China is bracing for heavy rain and strong winds from a new tropical storm heading its way, the latest in a series of severe weather which has killed nearly 3,000 people so far this year. Tropical storm Mindulle was forecast to hit the southern island province of Hainan late on Monday or early on Tuesday, state news agency Xinhua said, before heading into neighbouring Guangdong province and possibly affecting Vietnam. Chan Siu-wai of the Hong Kong Observatory said the storm would not likely be a big one. "This year there were some storms that attained even higher intensity that tracked even closer to Hainan island. It's not the strongest one this year," he said. In northeastern China on the North Korean border, more than 250,000 people have been evacuated after the Yalu River broke its banks following heavy rain. At least four people have died. North Korea said over the weekend more than 5,000 people had been evacuated from its side of the border.