Tropical storm "Dianmu" along with gusty winds will strengthen precipitation in north China as it moves north, the national meteorological agency warned on Monday.

The typhoon, started Sunday night in the sea about 400 kilometers east of Taiwan, is expected to complicate flood-control efforts in northeast China, where torrential rain-triggered floods have left more than 100 people dead and missing.

Heavy rains will hit parts of northeast China's Liaoning, Jilin and Heilongjiang provinces on Tuesday. Northwest China's Gansu and Shaanxi provinces will also be affected, said the National Meteorological Center.

The typhoon, the fourth this year, was moving northeast at a speed of 25 km per hour. Its center was located about 390 km east of Zhejiang Province's coast Monday afternoon and will approach southern coast of the Korean Peninsula on Tuesday, said the center.