The water level of large hydroelectric reservoirs in the Northern region continues to remain stable, many reservoirs are near normal rising water levels, suitable for power generation operation and ensuring reservoir safety.
According to an update from Vietnam Electricity Group, as of 9:00 a.m. on December 25, 2025, Hoa Binh Lake recorded upstream water levels at elevation of 116.58m; water flow to the lake reached 844m3/s; total discharge through the plant was 837m3/s.
At Tuyen Quang Lake, by 9:00 a.m. on December 25, the upstream water level reached 119.9 m; the water flow to the lake reached 231 m3/s; the total discharge was 227.5 m3/s.
Implementing the inter-reservoir operation process on the Red River basin, Tuyen Quang Hydropower Plant has closed 1 bottom spillway gate of Tuyen Quang Hydropower Plant, currently only maintaining power generation through generators.
As of 9:00 a.m. on December 25, Son La Lake recorded upstream water levels at 214.57 m; water flow to the lake was 133 m3/s; total discharge through the plant was 1,393 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 294.86m; the water flow to the lake reached 356m3/s; the total discharge was 661m3/s. Currently, Lai Chau Hydropower Plant has also closed all spillways and surface spillways, only operating power generation through generators.
At Thac Ba Lake, as of 9:00 a.m. on December 25, the upstream water level reached 57.8 m; the water flow to the lake reached 122 m3/s; the total discharge was 65.64 m3/s, not discharged through the spillway.
According to the latest weather forecast from the National Center for Hydro-Meteorological Forecasting, today, December 25, the cold air mass has been reported to be moving south.
In the North and North Central regions, there will be rain, showers and thunderstorms in some places. The weather will turn cold, especially in the mountainous areas of the North, it will be very cold, some places will be very cold. The lowest temperature in the highlands is below 13 degrees Celsius in some places.
The Hanoi area will have rain, showers, and cold weather. The lowest temperature is from 15-17 degrees Celsius.
From now until the end of December 26, in the area from Ha Tinh to Da Nang City, the East of the provinces from Quang Ngai to Dak Lak and Khanh Hoa, there will be rain, moderate rain, locally heavy rain and thunderstorms.
