According to the forecast bulletin, short-term hydrographic warning of the National Center for Hydro-Meteorological Forecasting, on the Red River basin, the water level of the Thao River in Yen Bai at 7:00 am on July 31st was 27.59 m, in Phu Tho it was 14.02 m and continued to decrease after peaking on July 30th.
On the Lo River, the water level in Tuyen Quang is 16.89 m, in Vu Quang is 10.19 m, continuing to decrease; Tuyen Quang hydropower reservoir still maintains opening 1 bottom discharge gate.
The water level of the Red River in Hanoi is at 5.29 m, fluctuating upwards due to the influence of rain in the basin and the regulation of Hoa Binh and Tuyen Quang reservoirs, which are then forecast to shift to a downward trend.
On the Thai Binh river basin, the water levels of the Cau, Thuong, Luc Nam and Thai Binh rivers continue to change slowly or fluctuate due to the influence of tides. At 7:00 am on July 31, the water level at Dap Cau on the Cau River was 2.90 m, Phu Lang Thuong on the Thuong River was 2.60 m, Luc Nam on the Luc Nam River was 2.40 m and Pha Lai on the Thai Binh River was 2.46 m. In the next 36 hours, the highest water level in Pha Lai is forecast to be 2.50 m, the lowest is 1.90 m.
In the North Central region, the water level on the Ma River fluctuates, the downstream at Giang station is affected by tides. On the Ca River, the upstream water level fluctuates, the midstream is affected by reservoir regulation, and the downstream fluctuates according to the tide. At 7:00 AM on July 31, the water level at Kim Long on the Huong River reached 0.53 m.
In the South Central region, the water level on the Vu Gia - Thu Bon river continues to change slowly; the downstream Thu Bon river fluctuates according to the tide. Tra Khuc river fluctuates according to reservoir regulation and the influence of tides. At 7:00 am on July 31, the water level at Thanh Hoa on the Kon River reached 6.87 m, Tra Khuc 2.69 m and Phu Lam on the Da Rang River 0.24 m.
In the Southeast region, the water level of the Dong Nai River at Ta Lai at 7:00 am on July 31st reached 111.92 m and is forecast to change slowly. On the Be River, the water level at Phuoc Hoa reached 21.04 m, continuing to fluctuate according to the regulation of the above-line hydropower reservoir.
In the Central Highlands and Mekong River basin, the water level on the Dak Bla River in Kon Tum reached 515.02 m, and the Krong Ana River in Giang Son reached 415.48 m.
For the Mekong River upstream, the highest water level on July 30th on the Tien River in Tan Chau reached 1.69 m, on the Hau River in Chau Doc reached 1.79 m. In the next 3-4 days, the water level will continue to rise with the tide; by August 4th, the highest water level in Tan Chau is forecast to reach 1.9 m, in Chau Doc reaching 2.0 m.
