Floods are especially large on Cau River and Thuong River and are likely to peak early in the morning of October 9.

According to the National Center for Hydro-Meteorological Forecasting, many localities in the North are still at risk of flash floods and landslides due to continued rain, although rainfall has decreased sharply.

Many places in Van Ha ward, Bac Ninh province are submerged in floodwater. Photo: VNA

Extremely large floods on Cau River and Thuong River (Bac Ninh) continue to rise and are likely to peak early in the morning of October 9.

In the past 24 hours (from 4:00 p.m. on October 7 to 4:00 p.m. on October 8), the provinces of Lao Cai, Tuyen Quang, Cao Bang , Thai Nguyen and Bac Ninh had moderate rain, heavy rain, and very heavy rain in some places such as: Lieu Do 89mm (Lao Cai); Ho Thau 120.8mm (Tuyen Quang); Luong Bang 25.4mm (Thai Nguyen); Xuan Truong 22.8mm (Cao Bang); Xuan Huong 56.2mm (Bac Ninh)...

It is forecasted that the above provinces will continue to have rain with accumulated rainfall of 5-10mm, in some places over 30mm. There is a risk of flash floods on small rivers and streams, landslides on steep slopes in many communes/wards of the provinces: Lao Cai , Tuyen Quang, Thai Nguyen, Cao Bang, Bac Ninh. Warning level of natural disaster risk due to flash floods, landslides, land subsidence due to rain, floods or water flow: Level 1; Thai Nguyen is level 2.

Flash floods and landslides can have very negative impacts on the environment, threaten people's lives; cause local traffic congestion, affect the movement of vehicles; destroy civil and economic works, causing damage to production and socio-economic activities.

In the area from Gia Lai to Lam Dong and the South, there are scattered showers and thunderstorms. It is forecasted that in the afternoon and evening of October 8, the area from Gia Lai to Lam Dong and the South will have scattered showers and thunderstorms with rainfall of 15-30mm, with some places experiencing heavy rain of over 70mm. Warning of the risk of heavy rain (over 60mm/3 hours).

Exceptionally large floods on Cau River and Thuong River

Currently, floods on Cau River and Thuong River (Bac Ninh) continue to rise. Floods on Trung River ( Lang Son ) are at their peak. Water levels at 1:00 p.m. on October 8 on the rivers are as follows: On Cau River at Gia Bay station 29.49m, 0.68m above the historical level in 2024 (28.81m), at Dap Cau station 6.77m, 0.47m above alert level 3. On Thuong River at Cau Son station 17.97m, 1.97m above alert level 3, at Phu Lang Thuong station 7.41m, 1.11m above alert level 3. On Trung River at Huu Lung station 24.31m, 1.77m above the historical level in 1986 (22.54m).

It is forecasted that in the next 6 hours, the flood on the Thuong River at Cau Son is likely to peak and be about 0.88m above the historical flood level. The flood on the Cau River at Gia Bay station continues to decrease and is about 1.5m above alert level 3; at Dap Cau station it continues to rise and is about 0.69m below the historical flood level of 1971 (7.84m). The flood on the Thuong River at Phu Lang Thuong station continues to rise and is about 0.13m above the historical flood level of 1986 (7.52m).

In the next 6-24 hours, floods on Cau and Thuong rivers are likely to peak in the early morning of October 9; flood peak at Dap Cau station is about 0.9m above alert level 3, flood peak at Phu Lang Thuong station is about 0.18m above historical flood level.

Warning: From this afternoon (October 8) to October 9, floods on some small rivers in Lang Son and Cao Bang will remain above alert level 3. Floods on Luc Nam River (Bac Ninh) at Luc Nam station will change slowly at alert level 1- alert level 2. Floods on Thai Binh River (Hai Phong) at Pha Lai station will gradually rise and above alert level 2.

Widespread flooding in Thai Nguyen province (maintaining for the next 2-3 days), Bac Ninh, Lang Son, Cao Bang and risk of flooding in low-lying areas along rivers, urban areas in the Northern region; risk of landslides on river banks, river dykes, risk of flash floods on rivers and streams and landslides on slopes in mountainous areas of the Northern region. Flood risk warning level: Level 3.

River floods inundate low-lying areas along the river, affecting activities such as water transport, aquaculture, agricultural production, people's lives and socio-economic activities.

Specific weather in each region on the night of October 8 and October 9

In the Northwest region, there will be scattered showers and thunderstorms at night and in the morning, and sunny weather during the day. During thunderstorms, there is a possibility of tornadoes, lightning, and strong gusts of wind. The lowest temperature will be 22-25 degrees Celsius, with some places below 21 degrees Celsius, and the highest temperature will be 29-32 degrees Celsius.

In the Northeast region, there will be showers and thunderstorms in some places at night and in the morning, and sunny during the day. Northeast wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, and strong gusts of wind. The lowest temperature is from 22-25 degrees Celsius, in mountainous areas it will be below 21 degrees Celsius, the highest temperature is from 29-32 degrees Celsius.

From Thanh Hoa to Hue, it will be cloudy, with scattered showers and thunderstorms in the afternoon and evening, and sunny during the day. In the South, there will be scattered showers and thunderstorms tomorrow evening, with some heavy rain in some places. Northeast wind level 2-3. There is a possibility of tornadoes, lightning, and strong gusts of wind during thunderstorms. The lowest temperature will be from 23-26 degrees Celsius, and the highest temperature will be from 30-33 degrees Celsius.

The South Central Coast is cloudy, with scattered showers and thunderstorms at night, and sunny during the day. In the late afternoon and evening, there will be scattered showers and thunderstorms, with some heavy rain in the North. Light wind. During thunderstorms, there is a possibility of tornadoes, lightning, and strong gusts of wind. The lowest temperature is 24-27 degrees Celsius, and the highest temperature is 30-33 degrees Celsius.

The Central Highlands region is cloudy with scattered showers and thunderstorms; in the late afternoon and evening there will be scattered showers and thunderstorms, with some heavy rain in some places. Southwest wind level 2-3. During thunderstorms there is a possibility of tornadoes, lightning and strong gusts of wind. The lowest temperature is from 19-22 degrees Celsius, the highest temperature is from 27-30 degrees Celsius.

The Southern region is cloudy with scattered showers and thunderstorms; in the late afternoon and evening there will be scattered showers and thunderstorms, with some heavy rain in some places. Southwest wind level 2-3. During thunderstorms there is a possibility of tornadoes, lightning and strong gusts of wind. The lowest temperature is from 24-27 degrees Celsius, the highest temperature is from 31-34 degrees Celsius.

Hanoi is cloudy, with occasional showers at night and early morning, and sunny during the day. Northeast wind level 2-3. Lowest temperature from 24-26 degrees Celsius, highest temperature from 30-32 degrees Celsius.

Ho Chi Minh City is cloudy with scattered showers and thunderstorms; in the late afternoon and evening there will be scattered showers and thunderstorms, with some heavy rain in some places. Southwest wind level 2-3. During thunderstorms there is a possibility of tornadoes, lightning and strong gusts of wind. The lowest temperature is from 24-26 degrees Celsius, the highest temperature is from 31-33 degrees Celsius.

Source: https://baotintuc.vn/van-de-quan-tam/lu-dac-biet-lon-tren-song-cau-song-thuong-va-kha-nang-dat-dinh-vao-sang-som-ngay-910-20251008184237549.htm