As of 6:00 a.m. on October 18, 2025, according to an update from Vietnam Electricity Group, Hoa Binh Lake recorded upstream water levels at elevation of 115.77m; water flow to the lake reached 2,863m3/s; total discharge was 2,291m3/s.
Implementing the inter-reservoir operation process on the Red River basin, Hoa Binh Hydropower Plant closed 1 bottom spillway gate of Hoa Binh Hydropower Plant at 5:00 p.m. on October 16. When a bottom spillway is closed, the water level will decrease.
Previously, at 3:00 p.m. on October 14, Hoa Binh Hydropower Plant opened a bottom spillway.
At Tuyen Quang Lake, by 6:00 a.m. on October 18, the upstream water level reached 117.82 m; the water flow to the lake reached 803 m3/s; the total discharge was 585.3 m3/s. Implementing the inter-reservoir operation process in the Red River basin, Tuyen Quang Hydropower Plant closed 1 bottom spillway gate of Tuyen Quang Hydropower Plant at 5:00 p.m. on October 16.
As of 6:00 a.m. on October 18, Son La Lake had an upstream water level of 215.16 m; the water flow to the lake was about 2,243 m3/s; the total discharge was 2,321 m3/s. Currently, the unit has closed all bottom spillways, only maintaining power generation through generators to regulate the flow downstream.
A similar situation occurred in Lai Chau Lake, where the upstream water level reached 295m; the water flow to the lake reached 1,650m3/s; the total discharge was 1,650m3/s. Currently, Lai Chau Hydropower Plant has also closed all bottom spillways, only operating power generation.
At Thac Ba Lake, by 6:00 a.m. on October 18, the upstream water level reached 58.04 m; the water flow to the lake reached 440 m3/s, the total discharge was 548.5 m3/s. Currently, Thac Ba Hydropower Plant maintains 2 floodgates.
In the context of complicated heavy rain, the flexible operation of hydroelectric reservoirs, ensuring safety downstream is considered a key factor in natural disaster prevention in the North.
According to the latest weather forecast from the National Center for Hydro-Meteorological Forecasting, today, October 18, a cold air mass from the North is moving south, affecting the weather in the North and North Central regions.
Around the morning of October 19, cold air began to affect the Northeast region.
Due to the influence of cold air, the Northeast region will have scattered showers and thunderstorms in some places. The inland wind will shift to the Northeast at level 2-3, and coastal areas at level 3-4.
Forecast on October 18, the Northern region will have cloudy weather, showers and thunderstorms in some places in the evening and at night; sunny during the day. The highest temperature is from 31-33 degrees Celsius, some places above 33 degrees Celsius.
The area from Thanh Hoa to Hue and the South Central Coast will have moderate rain, heavy rain and thunderstorms, some places will have very heavy rain. The highest temperature is from 28-32 degrees Celsius.
Other areas will have clouds, with showers and thunderstorms in some places; especially tonight and tomorrow evening, there will be scattered showers and thunderstorms, with some places having heavy rain.
