Impact of storm No. 9: From the night of September 24 to September 25, many areas will have heavy rain.

According to the National Center for Hydro-Meteorological Forecasting, from the night of September 24 to the end of September 25, the Northern region, Thanh Hoa and Nghe An will have heavy to very heavy rain, with rainfall ranging from 50-100mm, and locally over 200mm. Along with that, many areas across the country will have heavy rain, locally over 200mm.

From the night of September 24 to the end of September 25, the Northern region, Thanh Hoa and Nghe An will have heavy to very heavy rain. Illustration photo: VNA

At 4:00 p.m. on September 23, the center of storm No. 9 was at about 20.6 degrees North latitude; 116.7 degrees East longitude, about 680km east of Leizhou peninsula (China).

Heavy rain in many areas

According to the National Center for Hydro-Meteorological Forecasting, from the night of September 24 to the end of September 25, the Northern region, Thanh Hoa and Nghe An will have heavy to very heavy rain, with common rainfall of 50-100mm, locally over 200mm.

Warning of risk of heavy rain over 100mm in 3 hours.

In addition, in the evening and night of September 23, the Northwest region and Tuyen Quang, the area from Thanh Hoa to Quang Ngai will have scattered showers and thunderstorms with rainfall of 15-30mm, locally heavy rain over 80mm.

In the evening and night of September 23, the Central Highlands will have showers and scattered thunderstorms with rainfall of 20-40mm, with some places having heavy to very heavy rain of over 100mm.

In the afternoon and evening of September 23, the Southern region will have scattered showers and thunderstorms with rainfall of 10-30mm, with some places having heavy rain of over 60mm.

Warning of risk of heavy rain over 70mm in 3 hours.

From the night of September 25 to the end of the night of September 26, the Northern region, Thanh Hoa and Nghe An will have heavy to very heavy rain, with common rainfall of 50-150mm, locally over 200mm.

Heavy rain in the North, Thanh Hoa, and Nghe An is likely to last until the night of September 26, with total rainfall from the night of September 24 to the night of September 26 generally ranging from 100-250mm, and locally over 400mm.

"Heavy rain can cause flooding in low-lying areas, urban and industrial areas; flash floods on small rivers and streams, landslides on steep slopes (real-time warning information on areas at risk of flash floods and landslides is provided online on the website of the Department of Hydrometeorology at: https://luquetsatlo.nchmf.gov.vn and in a separate bulletin warning of flash floods and landslides). During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The risk level of natural disasters due to heavy rain, tornadoes, lightning and hail is level 1", noted Deputy Head of the Weather Forecasting Department Vu Anh Tuan.

On September 23, the Northwest region, from Quang Tri to Gia Lai, had scattered showers and thunderstorms, with some places experiencing heavy rain. The rainfall from 7am to 1pm on September 23 was locally over 50mm in some places such as: Nam Han Station (Lai Chau) 57.2mm, Pha Khinh Station (Son La) 56.8mm, Viet Trung Station (Quang Tri) 55.4mm, Vinh Kim Station (Quang Tri) 67mm,...

Flood warning on rivers in the North and from Thanh Hoa - Nghe An

The National Center for Hydro-Meteorological Forecasting warns that from the night of September 24 to September 27, there is a possibility of a flood on rivers in the Northern region, Thanh Hoa and Nghe An, with a flood amplitude of 4-7m in the upper reaches of rivers and 2-4m in the lower reaches of rivers. During this flood, the flood peak on small rivers is likely to rise to alert level 2-3, the flood peak on Thao River, Lo River, the upper reaches of Thai Binh River, Hoang Long River, Buoi River, and the upper reaches of Ma River will rise to alert level 1-2, some rivers will be above alert level 2, and the upper reaches of Ca River will rise above alert level 1; the flood peak in the lower reaches of Red River, Thai Binh River, Ma River, and Ca River will be below alert level 1.

There is a high risk of flooding in low-lying areas along rivers and urban areas in the Northern Delta, Thanh Hoa and Nghe An; flash floods and landslides on steep slopes in mountainous areas of the North, Thanh Hoa and Nghe An (Real-time warning information on areas at risk of flash floods and landslides is provided online on the website of the Department of Hydrometeorology at: https://luquetsatlo.nchmf.gov.vn and in a separate bulletin warning of flash floods and landslides).

Level 1 flood disaster risk.

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

Currently, water levels on the main rivers of the Red - Thai Binh river system, Ma River (Thanh Hoa), Ca River (Nghe An) have small fluctuations and are below alert level 1.

Weather in different regions on the night of September 23 and September 24

In the Northwest, there will be scattered showers and thunderstorms at night, with some places having heavy rain. During thunderstorms, there will be a possibility of tornadoes, lightning, and strong gusts of wind; sunny during the day. Light wind. Lowest temperature 23-26 degrees Celsius, some places below 22 degrees Celsius. Highest temperature 32-35 degrees Celsius.

In the Northeast, there will be showers and thunderstorms in some places at night, sunny during the day, with the possibility of tornadoes, lightning and strong gusts of wind during thunderstorms. North to Northwest wind level 2-3. Lowest temperature 24-27 degrees Celsius, in mountainous areas below 24 degrees Celsius. Highest temperature 32-35 degrees Celsius.

Hanoi city has no rain at night, sunny during the day. North to Northwest wind level 2-3. Lowest temperature 25-27 degrees Celsius. Highest temperature 33-35 degrees Celsius.

Provinces and cities from Thanh Hoa to Hue, at night there will be scattered showers and thunderstorms, locally heavy rain; during the day there will be scattered showers and thunderstorms, with the possibility of tornadoes, lightning, hail and strong gusts of wind. North to Northwest wind level 2-3. Lowest temperature 24-27 degrees Celsius. Highest temperature 31-34 degrees Celsius.

The South Central Coast has scattered showers and thunderstorms; in the North, there will be scattered showers and thunderstorms at night, locally heavy rain in some places, with the possibility of tornadoes, lightning, hail and strong gusts of wind. West to Southwest wind level 2-3. Lowest temperature 24-27 degrees Celsius. Highest temperature 31-34 degrees Celsius, some places above 34 degrees Celsius.

The Central Highlands has rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain, with the possibility of tornadoes, lightning, hail and strong gusts of wind. Southwest wind level 2-3. Lowest temperature 19-22 degrees Celsius. Highest temperature 25-28 degrees Celsius

In the Southern and Western regions, there will be scattered showers and thunderstorms, with scattered showers and thunderstorms in the late afternoon and evening, with some places experiencing heavy rain. In the Eastern region, there will be moderate rain and scattered thunderstorms, with some places experiencing heavy to very heavy rain (rain concentrated in the late afternoon and evening), with the possibility of tornadoes, lightning, hail and strong gusts of wind during thunderstorms. Southwest wind level 3. Lowest temperature 23-26 degrees Celsius. Highest temperature 30-33 degrees Celsius.

Ho Chi Minh City has rain, moderate rain and scattered thunderstorms, locally heavy rain (rain concentrated in the evening and at night), thunderstorms are likely to have tornadoes, lightning, hail and strong gusts of wind. Southwest wind level 3. Lowest temperature 24-26 degrees Celsius. Highest temperature 31-33 degrees Celsius.

Source: https://baotintuc.vn/van-de-quan-tam/anh-huong-bao-so-9-tu-dem-249-den-259-nhieu-khu-vuc-co-mua-lon-20250923164604964.htm