Affected by Typhoon “Bualoi”, the Mekong River Basin will experience moderate to heavy rain in the next 1-2 days, with localized heavy rain or torrential rain. A reminder for Thailand, Laos, Vietnam, Cambodia and relevant regions in the Mekong River Basin to take precautions. Over the next two days, there will be light rain in the middle and lower reaches of the Lancang River, with moderate rain in some areas. The water level of the lower reaches of the Lancang River is expected to remain stable.

For real-time information on typhoon track, typhoon forecast, and rainfall forecast for the Mekong River Basin, please refer to Figures 1-3 below.

Figure 1: Probabilistic Forecast Map of the 20th Typhoon “Bualoi” Track in the Next 48 Hours

(Data Source: World Meteorological Centre (Beijing)) 

Figure 2: 24-Hour Rainfall Forecast Map for the Mekong River Basin

(08:00 September 27 to 08:00 September 28, 2025 (Beijing Time), Data Source: World Meteorological Centre (Beijing))

Figure 3: 48-Hour Rainfall Forecast Map for the Mekong River Basin

(08:00 September 28 to 08:00 September 29, 2025 (Beijing Time), Data Source: World Meteorological Centre (Beijing))