At around 4 p.m. the typhoon lay centered 370 km to the east-southeast of China’s Guangdong, the National Center for Hydro-Meteorological Forecasting said. It was moving west at 10 kph, the center added.
By 4 p.m. Friday, the storm would be around 140 km away from Guangdong, having already weakened by then. It would continue to move west at 5-10 kph, before devolving into a tropical depression on Sunday in the northern parts of the East Sea.
The Japan Meteorological Agency said the storm's wind speed was at 126 kph on Thursday afternoon, and it would devolve into a tropical depression on Sunday. The Hong Kong Observatory has the same forecast.
Rough seas and strong winds are expected on certain regions of the East Sea, known internationally as the South China Sea.
Meteorological agencies said there would be one to two storms and tropical depressions affecting Vietnam's mainland this month.