According to updates from Vietnam Electricity Group, as of 9 am on December 30, 2025, Hoa Binh reservoir recorded upstream water level at an altitude of 116.6m; water flow to the reservoir reached 744m3/s; total discharge through the plant is 737m3/s.
At Tuyen Quang reservoir, by 9 am on December 30, the upstream water level reached 119.87m; water flow to the reservoir reached 148m3/s; total discharge volume 143.86m3/s.
Implementing the inter-reservoir operation process on the Red River basin, Tuyen Quang Hydropower Plant has closed the bottom discharge gate of Tuyen Quang hydropower reservoir, currently only maintaining power generation through units.
As of 9 am on December 30, Son La reservoir recorded upstream water level reaching 214.86m; water flow to the reservoir 128m3/s; total discharge volume 385m3/s. Currently, the unit has closed all bottom discharge gates, only maintaining power generation through generating units to regulate downstream flow.
A similar situation occurred at Lai Chau reservoir, where the upstream water level reached 294.59m; the water flow to the reservoir reached 417m3/s; no spillway discharge. Currently, Lai Chau Hydropower Plant has also closed all surface discharge gates, only operating power generation through units.
At Thac Ba reservoir, as of 9 am on December 30, the upstream water level reached 57.89m; water flow to the reservoir reached 124m3/s; total discharge volume 270.77m3/s; no overflow discharge.
According to the latest weather forecast from the National Center for Hydro-Meteorological Forecasting, today, December 30, the Northern and North Central regions maintain a cold state, with places experiencing severe cold and harmful cold; while the southern provinces are generally sunny during the day, with localized thunderstorms in the evening and at night.
In the Northern region, it will be cloudy, with light rain in some places; scattered rain at night and in the morning, fog and light fog appear in some places. The lowest temperature is commonly 16-19 degrees C, in mountainous areas there are places below 14-15 degrees C. Cold weather, in mountainous areas there are places with severe cold and harmful cold.
The area from Thanh Hoa to Hue is cloudy, with rain, showers in some places; in the North, light fog is scattered in the early morning. Lowest temperature 16-19 degrees C. Cold weather.
In the South Central Coast, the North is cloudy, with showers in some places; the South is cloudy, showers and scattered thunderstorms in the evening and at night, sunny during the day. Lowest temperature 20-23 degrees C.
Other areas will have cloudy skies, showers and thunderstorms in some places in the evening and at night; sunny during the day.
