As of 8:00 a.m. on November 8, 2025, according to an update from Vietnam Electricity Group, Hoa Binh Lake recorded upstream water levels at elevation of 115.89m; water flow to the lake reached 2,522m3/s; total discharge was 3,927m3/s.
Implementing the inter-reservoir operation process in the Red River basin, Hoa Binh Hydropower Plant opened a bottom spillway gate at 5:00 p.m. on November 6, 2025 to ensure flood prevention.
At Tuyen Quang Lake, by 8:00 a.m. on November 8, the upstream water level reached 119.1m; the water flow to the lake reached 377m3/s; the total discharge was 587.24m3/s. Implementing the inter-reservoir operation process in the Red River basin, Tuyen Quang Hydropower Plant opened 1 bottom spillway gate of Tuyen Quang Hydropower Plant at 10:00 a.m. on November 5, 2025.
As of 8:00 a.m. on November 8, Son La Lake had an upstream water level of 216.35 m; water flow to the lake was 923 m3/s; total discharge was 1,545 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 294.97m; the water flow to the lake reached 1,318m3/s; the total discharge was 1,113m3/s. Currently, Lai Chau Hydropower Plant maintains the closure of all bottom spillways, only operating power generation.
As of 8:00 a.m. on November 8, Thac Ba Lake had an upstream water level of 58.03 m; the water flow to the lake reached 218 m3/s; the total discharge was 321.61 m3/s. Currently, Thac Ba Hydropower Plant is maintaining an open gate to face.
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 National Center for Hydro-Meteorological Forecasting, today, November 8, the area from Thanh Hoa to North Quang Tri will have moderate rain, heavy rain, locally very heavy rain with common rainfall of 30-60mm, locally over 150mm.
Warning of the risk of heavy rain (over 60mm/3 hours).
Localized heavy rains are likely to cause flash floods on small rivers and streams, landslides on steep slopes and flooding in low-lying areas.
From the night of November 8, heavy rain in the area from Thanh Hoa to North Quang Tri tends to decrease.
Warning level 1 of natural disaster risk due to heavy rain, tornadoes, lightning, and hail.
Currently, floods on rivers in Hue city, Da Nang city, upstream of Ba river and downstream of Kon river (Gia Lai) are receding; floods in the downstream of Ba river (Dak Lak) are rising. Floods on Tra Khuc River (Quang Ngai) have dropped below alert level (BD)1.
In the next 24 hours, the upstream flood of Ba River (Gia Lai) at Ayunpa station will continue to decrease and will be at level BD2-BD3; on Huong River at Kim Long station, Bo River at Phu Oc station will continue to decrease and will be above level 1; on Vu Gia River at Ai Nghia station, Thu Bon River at Cau Lau station will continue to decrease and will be below level BD1; the downstream of Kon River at Thanh Hoa station will decrease below level BD1. Floods in the downstream of the Ba River at Phu Lam station will fluctuate below level 2, then decrease.
