Tropical Cyclone Kujira (Bão số 3) brings heavy rain and flood risk to northern Vietnam

Tropical Cyclone Kujira Northern Vietnam heavy rainfall flood risk Lai Chau

Tropical Cyclone Kujira, designated as Bão số 3, formed on 5 August 2026 over the southeastern part of the North Sea of East. Near its centre the system produced sustained winds of 62–74 km/h (force 8) with gusts up to force 10, moving eastward at about 10 10 km/h before turning east‑northeast toward Luzon and weakening to a tropical depression. The storm stayed offshore and was forecast not to affect Vietnam’s mainland or coastal areas.

The Vietnam National Hydro‑Meteorological Service warned that the associated heavy rain could trigger flash floods, landslides and urban flooding. Rainfall totals in northern provinces exceeded 250 mm in some locations between 4 and 6 August, with widespread amounts of 70–150 mm and isolated peaks over 180 mm. Eight provinces – Lai Châu, Sơn La, Phú Thọ, Lào Cai, Tuyên Quang, Thái Nguyên, Quảng Ninh and nearby districts – were placed under flash‑flood and landslide alerts. The agency highlighted the risk of severe flooding in low‑lying urban and industrial areas, as well as the potential for landslides on steep slopes.

Meteorologists noted that interaction with the nearby Tropical Cyclone Dolphin altered Kujira’s usual westward track, pushing it eastward across the South China Sea. Despite the storm’s intensity, no direct impact on Vietnam’s land was expected, but the heavy rains continued to pose significant hazards across the north.

Entities

Cyclone Dolphin · Hanoi · Lai Châu Province · Luzon · Luzon Island · National Center for Hydro‑Meteorological Forecasting (NCHMF) · National Center for Hydro‑Meteorology (NCHMF) · North East Sea (Bắc Biển Đông) · Northern Vietnam · Philippines · Phú Thọ Province · Sơn La province

Claims

What the coverage asserts, and how many sources carry each claim.

[● 9 SOURCES] Near its centre, Kujira produced sustained winds of 62–74 km/h (force 8) with gusts up to force 10. cafef.vn · kienthuc.net.vn · thanhnien.vn · afamily.vn · baoquocte.vn · +1 more
[● 7 SOURCES] Tropical Cyclone Kujira formed on 5 August 2026 over the southeastern part of the North Sea of East. cafef.vn · kienthuc.net.vn · thanhnien.vn
[● 8 SOURCES] Kujira was forecasted not to affect Vietnam's mainland or coastal areas. cafef.vn · kienthuc.net.vn · thanhnien.vn · www.vietnamplus.vn
[● 8 SOURCES] Vietnam's meteorological agency warned that the heavy rain could cause flash floods, landslides and urban flooding. afamily.vn · kienthuc.net.vn · thanhnien.vn · cafef.vn · cafebiz.vn · +1 more
[● 7 SOURCES] Kujira moved eastward at about 10 km/h and later turned east‑northeast toward Luzon, weakening to a tropical depression. cafef.vn · kienthuc.net.vn · thanhnien.vn · baoquocte.vn · tuoitre.vn
[● 6 SOURCES] Some locations in northern Vietnam recorded rainfall exceeding 250 mm between 4 and 6 August 2026. afamily.vn · kienthuc.net.vn · cafebiz.vn · vtv.vn
[● 5 SOURCES] Hanoi recorded rainfall exceeding 100 mm on 5 August 2026, with forecasts of 50–100 mm and isolated amounts over 150 mm. afamily.vn · kienthuc.net.vn · cafef.vn
[● 7 SOURCES] The provinces of Lai Châu, Sơn La, Phú Thọ, Lào Cai, Tuyên Quang, Thái Nguyên and Quảng Ninh were warned of flash‑flood and landslide risks. afamily.vn · kienthuc.net.vn · vtv.vn · cafebiz.vn
[● 2 SOURCES] Interaction with Tropical Cyclone Dolphin caused Kujira to move eastward instead of the usual westward track. tuoitre.vn · www.vietnamplus.vn