Strong winds are sustained over land by Typhoon Bualoi

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Warning of disaster risks following Typhoon Bualoi

This information was obtained six hours after the storm made landfall. At midnight on September 29, the storm's center was situated over the coastal region of Deo Ngang, which serves as the boundary between Ha Tinh and Quang Tri, according to the National Centre for Hydro-Meteorological Forecasting. At that time, the wind intensity was between force 10 and 11, with surges reaching force 13. The storm continued to move west-northwest toward Laos as it weakened by only one to two levels in the six hours since landfall.

Numerous coastal regions experienced robust winds. In Dien Chau (Nghe An) and Hoanh Son (Ha Tinh), winds reached force 11 with gusts of 13-14. Winds of force 10 with gusts of 11-12 were observed on Con Co Island (Quang Tri) and Ky Anh (Ha Tinh). At Hon Ngu (Nghe An), the water levels were raised by 1.6 meters by the storm surge, which resulted in winds reaching force 9 with gusts as high as force 13. Co To (Quang Ninh) reported winds of force 7 in the Gulf of Tonkin, while Bach Long Vi (Hai Phong) measured winds of force 8.

Additionally, the typhoon caused substantial rainfall from Thanh Hoa to Da Nang. In the past 24 hours, certain regions have experienced exceptionally high rainfall totals: 398 mm in Yen Thuong (Nghe An), 348 mm in Huong Quang (Ha Tinh), 206 mm in Trong Hoa (Quang Tri), 242 mm in Hong Trung (Hue), and 171 mm in Suoi Luong (Da Nang).

The storm's trajectory is anticipated to expand the zone of strong winds over land throughout Sunday. Winds of force 6-8 will continue to be generated off the coast from Thanh Hoa to Quang Tri (including Hon Ngu Island and Con Co Island) as a result of the circulation of Typhoon Bualoi or Typhoon No. 10. At the center, winds will be at force 9-10, with gusts to force 12. The seas in these regions can be extremely turbulent, with waves that can reach 3-5 meters in height.

In the northern Gulf of Tonkin, which encompasses the islands of Bach Long Vi, Van Don, Co To, Cat Hai, and Hon Dau, winds are expected to reach a force of 6-7, with gusts reaching 8-9, and waves reaching 2-4 meters in height.

Storm surges of 0.5-1.5 meters along the coastal belt and islands from Hai Phong to Nghe An are particularly alarming. The combination of high tides and large swells on the morning of September 29 increases the risk of flooding in low-lying coastal and estuary areas.

Nghe An and Ha Tinh will continue to experience strong winds of force 7-9 onshore, with winds of force 10-11 and gusts of force 13 in the vicinity of the storm's interior. Wind speeds of 6-7 mph with gusts of 8-9 mph are anticipated from Quang Ninh to Thanh Hoa.

Heavy rainfall is anticipated in the Red River Delta, Phu Tho, southern Son La, Lao Cai, and provinces spanning from Thanh Hoa to southern Ha Tinh today and tomorrow (September 29-30). The rain zone will also extend to other regions of northern Vietnam and northern Quang Tri. The risk of flash floods on minor rivers and streams, as well as landslides on steep slopes, is extremely high in numerous regions.

The Department of Dyke Management and Disaster Prevention reported that over 28,000 people have been relocated from provinces stretching from Ninh Binh to Quang Ngai. Among them are close to 7,000 residents in Thanh Hoa, more than 16,500 in Ha Tinh, and over 2,100 in Quang Tri.

Early assessments recorded one casualty in Hue, where a woman was swept away by rising waters late Saturday and later found on Sunday. Authorities also confirmed four people missing, three in Quang Tri and one in Da Nang, while 86 homes have been damaged or stripped of their roofs.

In the early hours of September 29, a tornado swept through several communes in Ninh Binh province, leaving a trail of severe damage to lives and property. Preliminary reports indicate that in Quy Nhat commune, the storm collapsed several homes, killing four people and injuring three others.