According to data from Vietnam Electricity Group, at 9:30 am on May 21, in the Northwest region, Hoa Binh Hydropower reservoir recorded upstream water level at an elevation of 104.99m, water inflow to the reservoir reached 3,317m3/s. Total discharge flow downstream was at 2,800m3/s, all through the power plant.
Son La Hydropower Reservoir has a water level of 199.87m, inflow to the reservoir 621m3/s and is generating electricity with a total discharge flow of 2,843m3/s.
In the Northeast region, Tuyen Quang Hydropower Reservoir reached a water level of 108.04m, discharging and generating electricity at 684.34m3/s, significantly higher than the water flow to the reservoir.
Some other hydropower reservoirs in the North such as Lai Chau Hydropower Plant, Thac Ba Hydropower Plant and Trung Son Hydropower Plant continue to operate stably, and overflow has not been recorded.
In the North Central region, Khe Bo Hydropower reservoir is discharging 169m3/s through the plant, while the water flow to the reservoir is only 2.4m3/s. Ban Ve Hydropower reservoir maintains a water level of 181.94m and has not yet discharged water.
In the Central Highlands region, Se San 4 Hydropower Reservoir has the largest total discharge flow in the region with 480m3/s. An Khe Hydropower Reservoir is discharging 8m3/s through the spillway and opening 1 surface discharge gate.
Meanwhile, Tri An Hydropower Reservoir in the Southeast region recorded a water level of 57.06m, the water inflow to the reservoir reached 240m3/s and has not been discharged for regulation.
According to the forecast of the National Center for Hydro-Meteorological Forecasting, on May 21, the Northeast region, southern Lao Cai, Southern Phu Tho, Thanh Hoa and Nghe An will have moderate rain, heavy rain and thunderstorms, with locally very heavy rain.
The Central Highlands and Southern regions have showers and thunderstorms in some places, especially in the late afternoon and evening there are scattered showers and thunderstorms, locally heavy rain.
