China Upgrades Alert Against Typhoon Wutip to Orange

China's maritime authority on Sunday upgraded its extreme weather warning from yellow to orange.

The 21st tropical cyclone of the season, Typhoon Wutip, swept across the city of Sansha in south China's Hainan Province on Sunday morning.

The central South China Sea region experienced rough seas caused by Wutip, with sustained winds of around 90 miles-per-hour.

Gusts up to 70 miles-per-hour accompanied by 155-millimeters of rain battered Yongxing Island in Sansha City, toppling trees and flooding roads.

Typhoon Wutip is now moving westward along the South China Sea, at nine miles-per-hour.

It is expected to strengthen and continue affecting Hainan and Guangdong Provinces on Sunday and Monday, before landing on Vietnam's central coast on October 1, according to China's National Meteorological Center.