Short-term hydrographic forecast and warning bulletin on July 28 of the National Center for Hydro-Meteorological Forecasting said:
With the Thao River, the water level at Yen Bai station and Phu Tho station is changing slowly and is forecast to rise.
Monitoring data at Yen Bai station at 7:00 am on July 28 was at 25.24m, at the same time at Phu Tho station at 12.35m.
With the Lo River, the water level at Tuyen Quang station, Vu Quang station (Phu Tho) is changing slowly. Tuyen Quang hydropower reservoir still maintains opening 1 bottom discharge gate at 4:00 PM on July 24, 2026, according to telegram No. 8258/CD-BNNMT.
Monitoring data at Tuyen Quang station at 7:00 a.m. on July 28 was at 16.59m, at the same time at Vu Quang station at 9.28m.
It is forecasted that the water level downstream of the Lo River at Tuyen Quang and Vu Quang stations will change in an increasing trend.

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 July 28, the water level of Hoa Binh Lake was at 39.46m.
With the Red River, the downstream water level at the Hanoi hydrological station is fluctuating according to the regulation of the upper-level hydropower plant and is affected by tides.
At 7:00 AM on July 28, the water level at Hanoi station was at 4.25m.
It is forecasted that the water level downstream of the Red River at Hanoi station will continue to fluctuate according to the regulation of the above-line hydropower plant (Tuyen Quang Lake, Hoa Binh Lake still maintain 1 bottom discharge gate) and will be affected by tides.
