As of 6:00 a.m. on October 16, 2025, according to an update from Vietnam Electricity Group, Hoa Binh Lake recorded upstream water levels at elevation of 115.79 m; water flow to the lake reached 831 m3/s; total discharge was 4,231 m3/s.
Implementing the inter-reservoir operation process in the Red River basin, Hoa Binh Hydropower Plant opened a bottom spillway gate at 3:00 p.m. on October 14 to stabilize downstream flow.
At Tuyen Quang Lake, by 6:00 a.m. on October 16, the upstream water level reached 116.83 m; the water flow to the lake reached 1,217 m3/s, the total discharge was 1,213.09 m3/s. Currently, Tuyen Quang Hydropower Plant maintains one bottom spillway.
Previously, from October 1 to 4:00 p.m. on October 12, Tuyen Quang Hydropower Company closed 9 spillways.
At Thac Ba Lake, by 6:00 a.m. on October 16, the upstream water level reached 58.05 m; the water flow to the lake reached 535 m3/s, the total discharge was 372.6 m3/s. Currently, Thac Ba Hydropower Plant maintains two open-top spillways.
On the contrary, as of 6:00 a.m. on October 16, Son La Lake had an upstream water level of 215.09 m; the water flow to the lake was about 1,787 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 294.9m; the water flow to the lake reached 1,343m3/s; the total discharge was 1,651m3/s. Currently, Lai Chau Hydropower Plant has also closed all bottom spillways, only operating power generation.
In the context of prolonged 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, on October 16, from Quang Tri to Quang Ngai and the South, there will be scattered showers and thunderstorms, locally heavy rain of 15 - 30mm, some places over 70mm. The rain will be concentrated in the late afternoon and night.
The Northwest has scattered showers and thunderstorms.
The Northeast and North Central regions will have scattered showers and thunderstorms in some places, especially in the Northern Delta and coastal areas, the North Central region will have scattered showers and thunderstorms at night and in the morning.
During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
