Short-term hydrographic forecast and warning bulletin on July 19 of 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 (Phu Tho province) is decreasing.
Monitoring data at Yen Bai station at 7 am on July 19 was at 26.20m, at the same time at Phu Tho station at 13.02m.
It is forecasted that a small flood is likely to appear on the upper reaches of the Thao River; the water level downstream of the Thao River at Yen Bai station and Phu Tho station tends to rise.
With the Lo River, the water level at Tuyen Quang station, Vu Quang station (Phu Tho) fluctuates due to rain and is affected by the upstream hydropower regulation.
Monitoring data at Tuyen Quang station at 7:00 a.m. on July 19 was at 15.13m, at the same time at Vu Quang station at 7.75m.
It is forecasted that upstream of the Lo River, there is a possibility of a flood, with the flood amplitude rising above the rivers from 2 - 4m; the water level downstream of the Lo River at Tuyen Quang station, Vu Quang station fluctuates according to the upstream hydropower regulation.
With the Da River, the flow to Hoa Binh reservoir fluctuates according to the regulation of the upper-level hydropower plant. It is forecasted that it will fluctuate according to the regulation of the upper-level hydropower plant and the impact of rain in the basin.
At 7 am on July 19, the water level of Hoa Binh Lake was at 39.16m.
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 the tide with a downward trend.
At 7 am on July 19, the water level at Hanoi station was at 3.93m.
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 and be affected by tides.
