According to the National Marine Environmental Forecasting Center, Utor is expected to make landfall in coastal areas between Hainan and Guangdong from Wednesday afternoon to night.
Shipping services on the Qiongzhou Strait have been closed and trains that will pass through the affected area have also been suspended since 7 a.m. on Tuesday morning, according to Guangzhou Railway (Group) Corporation.
Guangzhou Railway said 500 company personnel have been mobilized to examine ports, highways, banks, tunnels and bridges, and make flood control preparations.
In the island province of Hainan, gales and heavy storms are expected to sweep the province from Tuesday to Wednesday, according to the provincial meteorological bureau.
The bureau has required relevant departments to prepare for Utor as soon as possible.
The meteorological observatory of Guangxi Zhuang Autonomous Region, neighboring Guangdong, on Tuesday also issued an orange alter and initiated an emergency response for Utor, as the typhoon may hit areas from Beihai City to Yulin City on Tuesday morning.
China has a four-tier color-coded weather warning system, with red representing the most severe weather, followed by orange, yellow and blue.
The National Marine Environmental Forecasting Center has warned that, from noon on Tuesday to noon on Wednesday, waves as high as 10 meters will emerge in the northern part of the South China Sea.
Seaside bathing and sea travel in the affected areas should be canceled, and coastal organs should take precautionary measures, the center urged.