Heavy rain and strong winds blanket northern Vietnam: Extremely high risk of flooding.

The heavy rains and floods in early October had barely receded when, today, October 7th, many rivers and lakes in northern Vietnam are facing the risk of another wave of flooding and waterlogging.

Báo Sài Gòn Giải phóng•07/10/2025

Emergency evacuation of residents in Hoa An commune ( Cao Bang province) this morning, October 7th.

From the night of October 6th to the morning of October 7th, heavy rain continuously poured down on many provinces and cities in the North, causing water levels on the Cau River, Thuong River, Luc Nam River, and rivers in Cao Bang and Lang Son to rise very rapidly.

Some meteorological stations recorded extremely heavy rainfall, such as Hoa Thuong station (Thai Nguyen) with 437mm and Bo Ha station (Bac Ninh) with over 250mm. Thai Nguyen, Bac Ninh, Hanoi , and Thanh Hoa experienced heavy to very heavy rain, with many areas experiencing localized flooding.

Torrential rain fell in Minh Xuan ward (central Tuyen Quang province) on the morning of October 7th.

Tuyen Quang was once again flooded with rainwater this morning, October 7th.

According to the National Center for Hydro-Meteorological Forecasting, on the morning of October 7th, water levels at the Cau River, Gia Bay station (Thai Nguyen) reached 26.74m (0.74m above alarm level 2); at Dap Cau (Bac Ninh) 4.42m (0.12m above alarm level 1). The Thuong River at Phu Lang Thuong (Bac Giang) rose to 4.86m (0.56m higher than alarm level 1). Hydrological monitoring agencies predict that from now until October 10th, floods will continue to rise, with a high probability that flood peaks on these rivers will exceed alarm level 3, potentially leading to "exceptionally large floods" (according to the latest bulletin from the National Center for Hydro-Meteorological Forecasting).

In provinces such as Lang Son, Cao Bang, and Quang Ninh, flood levels will reach alarm levels 2 to 3. The Thao River, Lo River, Hoa Binh Lake, and the lower reaches of the Red River in Hanoi are also rising, exceeding alarm level 1 in some areas. Currently, the meteorological and hydrological agency has classified the natural disaster risk level as level 3. There is a high risk of deep flooding in low-lying areas along rivers and urban areas in Northern Vietnam, and flash floods and landslides may occur in mountainous regions.

Rising river water flooded houses in Hoa An commune (Cao Bang province) on the morning of October 7th.

The Bang River flooded houses in the center of Cao Bang province again on the morning of October 7th, after temporarily receding for 2-3 days.

The bridge over the Bang River is submerged, making it impassable for vehicles.

Over the next 24 to 48 hours, Hanoi, Thai Nguyen, and Bac Ninh will continue to experience heavy rainfall of 60-120mm, with some areas exceeding 250mm. The mountainous and midland areas of Northern Vietnam will receive widespread rainfall of 40-100mm, while the plains and Thanh Hoa will receive 30-60mm, with some areas exceeding 150mm. Nghe An and Ha Tinh will also experience showers and thunderstorms, with localized heavy rainfall exceeding 70mm. A warning has been issued for extremely heavy rainfall, potentially exceeding 150mm in just 3 hours, which could quickly cause flooding.