Thailand's Royal Irrigation Department released water from local dams in order to mitigate a potential flood event caused by Utor. Flooded areas of the western half of the country drained floodwaters into the Chao Phraya River. Off of Malaysia, a rough sea warning for coastal stretches of Sabah and northern Sarawak due to the threat of high wind-swept waves caused by Utor. In Vietnam, delegations were sent to coastal areas to guide residents in preparing for Utor and secure fishing boats, while troops were sent to reinforce buildings and fortify sea defenses. Preparations for "mass evacuations" also went into effect, particularly along Vietnam's central coastline. Border guards called back 3,785 fishing vessels with over 21,000 fishermen to shore. Aircraft, automobiles, canoes, and ships were dispatched into threatened areas to disseminate information regarding the typhoon. Similar precautionary measures took place in Hainan, where more than 20,000 fishing boats were called back to shore. Forty-nine people were evacuated out of the Paracel Islands due to the threat of the typhoon.