The short-term Hydrometeorological Forecast and Warning bulletin issued at 10:30 am on August 21st by the National Center for Hydro-Meteorological Forecasting said:
With the Thao River, the water level at Yen Bai station (Lao Cai province), Phu Tho station is changing slowly with a downward trend.
Monitoring data at Yen Bai station at 7:00 AM on August 22nd was at 26.23m, at the same time at Phu Tho station at 13.01m.
It is forecasted that the water level of the Thao River at Yen Bai station and Phu Tho station will change slowly with an upward trend.
With the Lo River, the water level at Tuyen Quang station is decreasing rapidly due to the Tuyen Quang hydropower reservoir temporarily stopping power generation, at Vu Quang station (Phu Tho) changing slowly and being affected by the upstream hydropower regulation.
Monitoring data at Tuyen Quang station at 7:00 AM on August 22nd was at 13.99m, at the same time at Vu Quang station at 7.52m.
It is forecasted that in the Lower Lo River, the water level at Tuyen Quang station will change slowly, at Vu Quang station it will decrease rapidly in the first 12 hours, then change slowly and be mainly affected by the upstream hydropower regulation.
With the Da River, the flow to Hoa Binh reservoir is and will continue to fluctuate according to the above-level hydropower regulation.
At 7:00 AM on August 22, the water level of Hoa Binh Lake was at 25.97m.
With the Red River, the water level downstream of the Red River at the Hanoi Hydrological Station is changing slowly.
At 7:00 AM on August 22, the water level at Hanoi station was at 3.99m.
It is forecasted that the water level of the Red River at Hanoi station will change slowly and fluctuate according to the tidal regime as well as be affected by upstream reservoir regulation (Hoa Binh reservoir opens 1 bottom discharge gate).
