Mekong River Water Levels Rising: Flood Warning Issued for Northeastern Thailand

The Office of the National Water Resources (ONWR) has released Announcement No. 2/2026, warning of a significant rise in water levels along the Mekong River. According to Prachachat Business, the alert period spans from August 31 to September 6, 2026.

Authorities anticipate water levels will increase by approximately 2.0 to 4.8 meters. This surge is attributed to heavy rainfall in upstream regions and an expected discharge of 18,000 cubic meters per second from the Xayaburi Dam. The provinces currently identified as being at risk of flooding include Nong Khai, Bueng Kan, Nakhon Phanom, and Mukdahan. Notably, reports indicate that water levels in Nong Khai have already exceeded the critical threshold by 0.28 meters.

For residents and travelers in these areas, this situation may lead to localized flooding, potential disruptions to river-based transportation, and restricted access to low-lying riverside zones. It is essential to monitor local news and follow instructions from provincial authorities, as conditions can change rapidly. While the ONWR has provided these projections, the full extent of the impact remains to be confirmed as weather patterns evolve. Travelers planning to visit these northeastern provinces are advised to check the status of their specific destinations and exercise caution near the riverbanks.