According to the bulletin of the National Center for Hydro-Meteorological Forecasting, in the Red River basin, the water level of the Thao River at Yen Bai and Phu Tho stations is changing slowly, with an upward trend. At 7:00 AM on July 23, the water level of the Thao River in Yen Bai was 25.53 m, in Phu Tho 12.60 m.
On the Lo River, the water level at Tuyen Quang and Vu Quang stations fluctuates due to rain and is affected by the regulation of hydropower on the upper line. At 7:00 AM, the water level of the Lo River in Tuyen Quang was 15.74 m, in Vu Quang 8.16 m. A flood is likely to appear upstream of the Lo River; the water level downstream of the Lo River tends to rise.
The flow to Hoa Binh reservoir on the Da River fluctuates according to the regulation of the upper-level hydropower line and the impact of rain in the basin. At 7:00 AM on July 23, the flow to Hoa Binh reservoir was 3,909 m3/s.
The water level downstream of the Red River at Hanoi station is fluctuating according to the regulation of the upper hydropower line and the influence of tides. At 7:00 AM, the water level at the station was 3.56 m.
In the Thai Binh river basin, the water level of the Cau River at Dap Cau station, the Thuong River at Phu Lang Thuong station and the Luc Nam River at Luc Nam station are changing slowly, affected by tides. Small floods are likely to appear upstream of the Thuong River.
The water level of the Thai Binh River at Pha Lai station changes slowly and is affected by tides. In the next 36 hours, the water level at this station is forecast to be highest at 1.30 m, lowest at 0.90 m.
The hydrology bulletin on July 23 forecasts that the water level of rivers in the Northern region will continue to be affected by rain, reservoir regulation and tides; in which it is necessary to pay attention to the upward trend on the Thao and Lo rivers, along with the possibility of floods on the Lo river upstream and small floods on the Thuong river upstream.
