Heavy rain has drenched northern Vietnam in recent days due to the influence of a monsoon trough combined with a low-pressure vortex operating at an altitude of 3,000–5,000 m. From midday on 20/6 to midday on 22/6, rainfall ranged from 150–250 mm, with Cuc Duong and Gia Bay (Thai Nguyen) reaching 370 mm, Yen Han (Bac Kan) 215 mm, and Kim Son (Hoa Binh) nearly 280 mm.

The meteorological agency reported that the peak of the heavy rain has passed, and rainfall is expected to gradually decrease from tonight to tomorrow. This evening, many areas, including Hoa Binh, Yen Bai, Ha Giang, Tuyen Quang, Cao Bang, Bac Kan, Lang Son, Phu Tho, Thai Nguyen, Vinh Phuc, Bac Giang, Bac Ninh, and Hanoi, will experience rainfall between 20–50 mm, with some areas exceeding 150 mm.

From 23/6 to 28/6, northern Vietnam will continue to experience scattered thunderstorms, mainly concentrated in the northern midlands and mountains.

According to Accuweather's forecast, the temperature in Hanoi next week will fluctuate between 26–34°C. Sa Pa (Lao Cai), located at an altitude of over 1,500 m, will maintain temperatures between 18–24°C.

Flooding in Thai Nguyen province on 21/6. Photo: Thai Nguyen

Flooding in Thai Nguyen province on 21/6. Photo: Thai Nguyen

In central Vietnam, from Thanh Hoa to Hue, the weather will be sunny, with showers and thunderstorms in the late afternoon and evening. The highest temperatures will reach 33–35°C, and even exceed 35°C in some places. The area from Da Nang to Binh Thuan will continue to experience predominantly dry and sunny weather.

The Central Highlands and southern Vietnam will be affected by moderate to strong southwest monsoons. From now until 24/6, the region will have thunderstorms in the afternoon and evening. On 25/6–26/6, the monsoon will intensify, potentially leading to increased rainfall across a wider area. The highest temperatures in the Central Highlands will range from 29–33°C, and 32–34°C in southern Vietnam.

At noon on 22/6, the Dyke Management and Flood and Storm Control Department reported that floodwaters on the Cau River are receding upstream. At the Thac Rieng station (Bac Kan), the water level is currently 0.12 m below alarm level two; at the Gia Bay station, it is 0.62 m above alarm level two and is expected to peak at 0.43 m above alarm level three tonight. On the Thuong River, the water level in Huu Lung (Lang Son) has surpassed alarm level three, while in Cau Son (Bac Giang), it is 0.31 m above alarm level two.

Floods and landslides have resulted in one death in Bac Kan and three injuries in Thai Nguyen and Lang Son. Over 110 houses have been damaged, and nearly 430 houses have been flooded, mostly in Thai Nguyen. The province has evacuated 265 households, of which over 60 have returned. In addition, 1,078 ha of rice and crops have been submerged, 23,600 poultry have died, and 33 ha of aquaculture have been affected.

Gia Chinh