Mekong River Overflow Warning Aug 31 - Sep 6

Thairath•Society•21d ago

Reader Briefing

The Office of the National Water Resources warns 8 provinces along the Mekong River of sudden water level increases and potential overflow from August 31 to September 6, 2026.

•Water levels in the Mekong River are predicted to rise by 2.0 to 4.8 meters between August 31 and September 6, 2026.
•The Office of the National Water Resources warns 8 provinces along the Mekong River to prepare for overflow.
•Heavy rain is expected in Upper Laos, Northern Thailand, and Northeastern Thailand from August 31 to September 2, 2026.
•Nong Khai and Bueng Kan provinces are specifically identified as having water levels likely to exceed critical thresholds.

Overview

•A monsoon trough moving over Northern and Upper Northeastern Thailand, a depression in Southern China, and a strong southwest monsoon are causing heavy rain.
•Approximately 18,000 cubic meters per second of water is expected to flow through the Xayaburi Dam on August 31, 2026.
•The Office of the National Water Resources forecasts Mekong River levels to rise by 2.0 to 4.8 meters from August 31 to September 6, 2026.
•Low-lying areas along the Mekong River in Nong Khai, Bueng Kan, Nakhon Phanom, and Mukdahan provinces are at risk of flooding.
•The Nong Khai station is expected to exceed critical levels from September 2 to 4, 2026, peaking at 0.28 meters above critical on September 4, 2026.
•The Bueng Kan station is expected to exceed critical levels from September 2 to 5, 2026, peaking at 1.22 meters above critical on September 5, 2026.
•The Office of the National Water Resources advises relevant agencies in riverside provinces to prepare for overflow and flooding.
•People traveling or living near the Mekong River are urged to closely monitor the water situation.

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Source: Thairath (Original)

Key Entities

Organization

Office of the National Water Resources(สำนักงานทรัพยากรน้ำแห่งชาติ)ℹ️

The agency that issued the warning regarding Mekong River levels and monitored the water situation.

Place

Mekong River(แม่น้ำโขง)ℹ️

The river experiencing a predicted sudden increase in water levels.

Lao PDR(สปป.ลาว)ℹ️

The country where the upper region is experiencing heavy rainfall.

China(จีน)ℹ️

The country where a depression is located in the southern region.

Xayaburi Dam(เขื่อนไซยะบุรี)ℹ️

The dam through which approximately 18,000 cubic meters of water per second is expected to flow on August 31, 2026.

Chiang Rai Province(จังหวัดเชียงราย)ℹ️

A province along the Mekong River, specifically mentioning Chiang Saen District.

Ubon Ratchathani Province(จังหวัดอุบลราชธานี)ℹ️

A province along the Mekong River, specifically mentioning Khong Chiam District.

Nong Khai Province(จังหวัดหนองคาย)ℹ️

A province at risk of flooding with water levels expected to exceed critical thresholds.

Bueng Kan Province(จังหวัดบึงกาฬ)ℹ️

A province at risk of flooding with water levels expected to exceed critical thresholds.

Nakhon Phanom Province(จังหวัดนครพนม)ℹ️

A province at risk of flooding in low-lying areas along the Mekong River.

Mukdahan Province(จังหวัดมุกดาหาร)ℹ️

A province at risk of flooding in low-lying areas along the Mekong River.