People living near the Pattani River have been warned to move their belongings to high ground as the town area could be flooded by Saturday morning, as heavy rain continues to pound the southernmost region.
The Pattani municipality issued the warning on Friday for people living beside the river and in nearby low-lying areas.
They should start relocating valuable household goods to safe places and stay vigilant, as a large volume of water is moving downstream.
The municipality and the provincial disaster prevention and mitigation office announcements said Bang Lang dam in Bannang Satar district of Yala was full and was releasing water downstream to prevent structural damage.
The flood surge would reach the town by Saturday morning and the river could overflow its banks.
The river passes through the town before flowing into the Gulf of Thailand.
Pattani and three other southernmost provinces of Narathiwat, Songkhla and Yala have been pelted by heavy rain for days.
The Disaster Prevention and Mitigation Department said on Friday that flooding in Pattani and Narathiwat remained worrisome. Water levels in Yala were stable, while in Songkhla the flooding was receding, it said.