At midmorning Sunday, Chanthuâs center was off Taiwanâs northeast coast, with winds of 162 kph (101 mph) and gusts up to 198 kph (124 mph), according to the Central Weather Bureau.
Up to 13 centimeters (5 inches) of rain fell Sunday in some areas, the Weather Bureau said. It said up to 20 centimeters (8 inches) was forecast.
Heavy rain also fell on Taipei, the capital, and other parts of the island.
Chanthu is forecast to head north and dump rain on Shanghai before turning east toward South Korea and Japan, the Weather Bureau said.
Earlier, the storm grazed the island of Luzon in the Philippines, but no flooding or damaged was reported.