Tropical Storm Baroui has triggered Trat Province's second-highest rainfall on record at 155.4mm in 24 hours, causing a major dam overflow and flooding across multiple districts with 98 destroyed houses reported so far.
Since July 11, Tropical Storm Baroui has unleashed heavy rainfall across Trat Province, affecting multiple areas. The Huai Raeng Reservoir in Ban Chumpol subdistrict, Bo Rai district—which holds a capacity of 36.80 million cubic meters—has now overflowed its spillway. The upstream catchment area received more than 100 millimeters of cumulative rainfall in 24 hours, causing floodwaters to surge down Huai Raeng canal, breaching the spillway by 0.8 meters, or 102 percent. These waters will flow into the Trat River before emptying into the Gulf of Thailand. Additionally, floodwaters have rapidly passed through the Wang Thong and Chang Toon weirs, raising water levels in Satoer canal to 8.45 meters and overtopping embankments by 45 centimeters, with flooding already reported in some areas. Trat Province recorded the second-highest cumulative rainfall nationwide at 155.4 millimeters over 24 hours.
Muang Trat District Officer Krienngkai Pannyapongthon identified two critical risk zones: inflows from Sarasiset Reservoir (Khao Rakhum) potentially entering the city, and floodwaters in the Trat River fed from upstream districts Bo Rai and Khao Saming. To prepare and manage the flood, authorities have conducted continuous surveys and inspections and deployed new water management techniques. The Sarasiset Reservoir, which formerly had only one outflow into town, now has a second outlet directing water to the sea and Trat River through irrigation channels toward Cape Takkaw, significantly reducing water entering the city. The district officer noted that dredging operations within the city from the Three-Way Large Canal junction to the Trat River bridge have been completed, improving water flow efficiency. These combined measures will substantially reduce flood risk in Muang Trat.
As of this morning, Trat Province's Disaster Prevention and Mitigation Office reported the latest impact: damage across three districts totaling 98 destroyed houses and one capsized fishing boat. Local government organizations are coordinating rescue efforts, clearing obstacles, and maintaining 24-hour surveillance. Muang Trat District suffered 63 damaged houses across eight subdistricts, with Wang Krachae subdistrict hit hardest at 26 houses. The Sukhumvit Road experienced flooding at two points but has since cleared, though water pumps remain operational. Huai Raeng subdistrict recorded 23 damaged houses, with canal water levels rising slightly but not yet overtopping. Other affected subdistricts include Chamrak (4 houses), Tha Prik (3), Takang (3), Noen Thai (2), Laem Klat (1), and Tha Kum (1), with additional impacts in Nong Samet, Nong Khanthorn, and Nong Sone subdistricts.
