Heavy rainfall is forecasted to shift from southern Nghe An to Quang Tri, impacting the northern regions of Vietnam. The National Center for Meteorological and Hydrological Forecasting has indicated that from the evening of September 13 to the morning of September 14, areas from southern Nghe An to northern Quang Tri will experience rainfall ranging from 60 to 100 mm, with some localities exceeding 100 mm. For instance, Hoa Thanh in Quang Tri recorded 225 mm, while Ky Thuong in Ha Tinh saw 184 mm.

From the morning of September 14 to the night of September 15, the rainfall in the southern delta of the Northern region and from Thanh Hoa to northern Ha Tinh is expected to reach between 150 and 300 mm, with isolated areas potentially receiving over 450 mm. The southern regions of Son La and Phu Tho, as well as the remaining parts of Ha Tinh, are also predicted to receive 100-180 mm of rain, with some areas exceeding 250 mm.

This heavy rainfall poses a risk of flooding along rivers from Thanh Hoa to Hue, lasting until September 16. The Ngàn Sâu and Ngàn Phố rivers in Ha Tinh may reach flood alert levels 2-3, while the Thạch Hãn River is expected to drop but remain at alert levels 1-2. Other rivers are generally at alert levels 1-2, with some areas exceeding level 2.

Nearly 200 communes in Thanh Hoa, Nghe An, Ha Tinh, Quang Tri, and Hue City are under warning for flash floods and landslides, particularly in mountainous and steep slope areas where prolonged heavy rain is expected. The risk in western Thanh Hoa, Nghe An, Ha Tinh, and Quang Tri is assessed as high to very high.

As of 6 AM on September 14, the floods have damaged nine houses, with five in Quang Tri and four in Hue. Quang Tri has reported 591 houses submerged. Local authorities have relocated 712 households to safety, including 663 in Quang Tri, five in Hue, and 44 in Da Nang.

Floodwaters have inundated 19 locations on national and provincial roads, causing traffic disruptions. Affected routes include national highways 9B, 15D, and provincial roads 588A, 586, 587, and 571 in Quang Tri, as well as road 17B in Hue. Additionally, 55 locations of overflow bridges, culverts, and inter-village roads are flooded by 0.2-0.8 meters, with some areas exceeding one meter, leading to localized isolation.

As of the afternoon of September 13, water levels in Hue City were receding; however, some areas in Phong Dien and Phong Dinh remained submerged. Around 2 PM on September 13, rising floodwaters swept three barges downstream, stranding them at the My Chanh railway bridge, threatening the safety of railway infrastructure, national highway 1, and local waterways.