As of 8:00 a.m. on November 2, 2025, according to an update from Vietnam Electricity Group, Hoa Binh Lake recorded upstream water levels at elevation of 116.53m; water flow to the lake reached 540m3/s; total discharge was 533m3/s.
Implementing the inter-reservoir operation process in the Red River basin, Hoa Binh Hydropower Plant closed a bottom spillway gate at 11:00 on October 22 to stabilize downstream flow. When closing a bottom spillway, the downstream water level will gradually decrease.
At Tuyen Quang Lake, by 7:00 a.m. on November 2, the upstream water level reached 119.71 m; the water flow to the lake reached 432 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 6:00 p.m. on October 24.
As of 8:00 a.m. on November 2, Son La Lake had an upstream water level of 215.03 m; water flow to the lake was 1,236 m3/s; total discharge was 292 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 969m3/s; the total discharge was 967m3/s. Currently, Lai Chau Hydropower Plant has also closed all bottom spillways, only operating power generation.
At Thac Ba Lake, by 8:00 a.m. on November 2, the upstream water level reached 58.06 m; the water flow to the lake reached 235 m3/s. Currently, Thac Ba Hydropower Plant maintains all floodgates closed.
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 2, cold air continues to strengthen and expand to the Northwest, North Central and some places in the Central Central region.
At sea, the Gulf of Tonkin will have northeast winds of level 5, sometimes level 6, gradually increasing to level 6, gusting to level 7-8, rough seas, waves 1.5 - 2.5m high. The sea area north of the North East Sea will have northeast winds of level 6, from tomorrow afternoon there will be winds of level 7, gusting to level 8-9, rough seas, waves 3.0 - 5.0m high.
The sea area from South Quang Tri to Quang Ngai: northeast wind level 5, sometimes level 6, gust level 7-8, rough seas, waves 2.0 - 3.0m high.
Due to the influence of the strengthening cold air, the Northern region, Thanh Hoa and Nghe An will have rain, with some places having moderate rain. From the night of November 2, the weather in the Northeast and Thanh Hoa will turn cold, with some mountainous areas experiencing severe cold.
Due to the influence of the strengthening cold air combined with disturbances in the high-altitude East wind zone, the area from Ha Tinh to Quang Ngai continues to have widespread heavy rain.
Heavy rain can cause flooding in low-lying areas; flash floods on small rivers and streams, landslides on steep slopes. High-intensity rain in a short period of time can cause flooding in urban areas and industrial parks.
