Due to the impact of Storm No. 3, torrential rains in Nghe An caused river levels to surge and floodwaters to rise rapidly. Hundreds of households were forced to evacuate overnight. National Highway 48 was deeply submerged, with many vehicles stalling.

Heavy rainfall lasting for hours submerged multiple mountainous communes in Nghe An. Combined with flood discharge from hydropower plants, areas including Ky Son, Con Cuong, Tuong Duong, and sections along National Highways 7 and 48 were inundated. Hundreds of mountain homes were flooded up to their rooftops, and transportation in many areas came to a standstill.

Floodwaters rose so quickly that residents had to evacuate in the middle of the night, with many unable to save their belongings. In some communes near Muong Xen, local police and authorities went door to door, urging people to move to higher ground and assisting with the relocation of essentials before floodwaters rushed in.

Nghe An evacuated 591 households in the communes of Nhon Mai, Huu Kiem, Tam Thai, Tam Hop, Muong Quang, Huoi Tu, Que Phong, Nga My, Tien Phong, and Muong Xen to prevent flash floods, landslides, and localized inundation.

Despite prior warnings, many homes were overwhelmed. A refrigerator was swept out of a house and down National Highway 7.

At around 10:00 p.m. on July 22, floodwaters from rising rivers submerged nearly one meter of road along Highway 48 in Quy Chau and Chau Tien communes (former Quy Chau district). Several cars stalled while attempting to cross, requiring rescue teams to tow them through.

Le Van Luong, Secretary of the Tuong Duong Party Committee, said the commune held an emergency meeting overnight to coordinate the response as many residents had fled to higher ground to escape the flood.

“Floodwaters rose throughout the night, collapsing three suspension bridges over the Lam River. Several residential areas in the former Thach Giam township were submerged under 1 to 2 meters of water. Many parts of National Highway 7, from Muong Xen to Con Cuong, remain inaccessible,” said Mr. Luong.

On the morning of July 23, Le Hong Vinh, Vice Secretary of the Provincial Party Committee and Chairman of the Nghe An People’s Committee, personally visited flooded communes in western Nghe An to inspect the situation and direct relief efforts.

According to the Director of the National Center for Hydro-Meteorological Forecasting, the remnants of Storm No. 3 caused exceptionally heavy rainfall across the western mountains of Nghe An, with rainfall ranging from 120-200mm, and in some areas exceeding 300mm in the past 24 hours. Rainfall is expected to continue in the upstream regions of the Ca River in Laos.

The Directorate for Roads of Vietnam reported significant storm damage in Thanh Hoa and Nghe An, including deep flooding and landslides disrupting traffic.

In Thanh Hoa, local authorities recorded 10 landslide points and blocked drains with over 20,270 m³ of debris. One landslide at Km77+700 on National Highway 15C (Nhi Son commune) has halted traffic. Despite machinery being deployed to the site, safety conditions have not allowed for debris removal.

In Nghe An, eight landslide points were reported along Km303+450 to Km348+550 of National Highway 16 in Nhon Mai commune, with seven of them blocking traffic. National Highway 48 also had one landslide disrupting travel.

Meanwhile, six locations across QL15 (Tan Ky commune), QL46B (Thuan Phong commune), and QL48 (Chau Binh commune) experienced flooding. Water has receded in these areas.

Among the province’s local roads, two sections on two provincial roads suffered landslides - one has since been cleared. Seven points across three provincial roads remain flooded. Only one has become passable again; the remaining six are still submerged.