According to updated data at 12:00 on July 5, in the Northeast region, Tuyen Quang reservoir has an upstream water level of 108.99m, 11.01m lower than the normal water level. Water flow to the reservoir reached 894m3/s, total discharge flow 1,223.73m3/s, of which discharge through the spillway was 527m3/s.
The Northwest region recorded large water inflows at many lakes. Hoa Binh Lake has water inflows reaching 3,687m3/s, Son La Lake 2,536m3/s and Lai Chau Lake 1,226m3/s. These lakes continue to operate for power generation, not discharging through spillways. Huoi Quang Lake alone has a water level of 368.23m, only about 1.77m lower than the normal water level.
In the North Central region, Trung Son Lake has a water level of 159.28m, nearly reaching the normal water level of 160m, with a water inflow of 215m3/s and a total discharge flow of 417m3/s. Khe Bo Lake has a water inflow of 47.9m3/s, a total discharge flow of 95.5m3/s. Meanwhile, Ban Ve and Quang Tri reservoirs do not discharge water.
In the South Central region, most reservoirs have water levels significantly lower than normal water levels. Song Tranh 2 reservoir reached 155.7m, A Vuong reservoir 356.64m, Song Ba Ha reservoir 102.44m. Some reservoirs generate electricity with small discharge flows such as Vinh Son A (6.9m3/s) and Song Hinh (15.22m3/s).
In the Central Highlands, Pleikrông reservoir has the largest inflow of water in the area with 298m3/s, followed by Se San 4 reservoir reaching 294m3/s and Srepok 3 reservoir reaching 234m3/s. Se San 3A reservoir discharges 257m3/s for power generation, while Buon Kuop discharges 14.71m3/s. Most reservoirs in the area do not discharge through spillways.
In the Southeast region, Tri An reservoir has an upstream water level of 51.11m, 10.89m lower than the normal water level. The water flow to the reservoir reaches 250m3/s and has not been discharged.
In general, hydropower reservoirs across the country are operating according to procedures, maintaining water levels below normal water levels, while regulating flow mainly for power generation and ensuring project safety.
According to the forecast of the National Center for Hydro-Meteorological Forecasting, on July 4, the Northeast region will have moderate to heavy rain, with very heavy rain in some places.
The area from Thanh Hoa to Quang Tri will have scattered showers and thunderstorms at night, with locally heavy rain.
The Central Highlands and Southern regions will have scattered showers and thunderstorms in the late afternoon and evening, with locally heavy rain.
