Cold air strengthens, North, Thanh Hoa and Nghe An have places below 17 degrees Celsius

According to the National Center for Hydro-Meteorological Forecasting, due to the influence of strengthening cold air, the Northern region, Thanh Hoa and Nghe An will continue to have cold weather at night and in the morning, and in mountainous areas it will be cold, with some places below 17 degrees Celsius.

Cold air enhances weather effects on land and sea

According to the forecast of the National Center for Hydro-Meteorological Forecasting, the cold air mass continues to move southward. In the next 24 to 48 hours (around the morning of October 26), this cold air mass will affect the Northeast region, then affect the North Central region and some places in the Northwest and Central Central regions. Northeast wind inland is strong at level 2-3, coastal areas at level 3-4.

The influence of cold air causes the lowest temperature during this cold air mass in the Northern region, Thanh Hoa and Nghe An to commonly range from 19-22 degrees Celsius.

In Hanoi area, the night and morning are cold, the lowest temperature in this cold air mass is generally from 19-21 degrees Celsius. At sea, from early morning on October 26, in Bac Bo Gulf, the Northeast wind gradually increases to level 6, gusts of level 7-8, rough seas, waves 1.5-3m high; the sea area north of the North East Sea has strong Northeast wind of level 6, sometimes level 7, gusts of level 8-9, rough seas, waves 3-5m high; the sea area from South Quang Tri to Da Nang city has Northeast wind of level 5, sometimes level 6, gusts of level 7-8, rough seas, waves 2-4m high.

Due to the influence of cold air strengthening combined with disturbances in the upper easterly wind zone, the area from South Quang Tri to Da Nang and the eastern part of the provinces from Quang Ngai to Dak Lak will have moderate rain, heavy rain and thunderstorms, and locally very heavy rain.

Thunderstorms accompanied by tornadoes, lightning, hail and strong gusts of wind can affect agricultural production, break trees, damage houses, traffic works and infrastructure.

Strong winds and gusts, large waves at sea may affect boating and other activities. Colder weather at night and in the morning may affect health.

Heavy rain in many areas

According to the National Center for Hydro-Meteorological Forecasting, from the evening of October 25 to October 27, in the area of Hue city, Da Nang city and the eastern part of Quang Ngai and Gia Lai provinces, there will be heavy to very heavy rain with common rainfall of 100-300 mm, locally over 450 mm.

In the South of Quang Tri and East of Dak Lak, there will be moderate to heavy rain and thunderstorms with common rainfall of 60-120 mm, locally very heavy rain over 200 mm. Warning of risk of heavy rain over 150 mm/3 hours.

In addition, in the evening and night of October 25, the western region from Quang Ngai to Dak Lak, Khanh Hoa, Lam Dong provinces and the Southern region will have rain, moderate rain and thunderstorms with rainfall of 20-40 mm, locally heavy to very heavy rain over 100 mm.

Thunderstorms may produce tornadoes, lightning, hail, and strong gusts of wind. Warning of heavy rain over 80 mm/3 hours.

On the night of October 27 and October 28, in the area from Quang Tri to Quang Ngai, there will be moderate rain, heavy rain and thunderstorms with common rainfall from 50-150 mm, locally very heavy rain over 300 mm. Heavy rain in this area is likely to last until the end of October 2025. The risk level of natural disasters due to heavy rain, tornadoes, lightning, and hail is level 1.

Heavy rains are likely to 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 separate bulletins warning of flash floods and landslides).

"Thunderstorm areas are at risk of tornadoes, lightning, hail and strong gusts of wind," noted Deputy Head of Weather Forecasting Department Nguyen Huu Thanh.

Flood warning on rivers from Quang Tri to Khanh Hoa

The National Center for Hydro-Meteorological Forecasting said that from October 25 to October 28, a flood will occur on rivers from Quang Tri to Quang Ngai and along the coast of provinces from Gia Lai to Khanh Hoa. The peak flood level on Kien Giang River, Thach Han River (Quang Tri), Bo River, Huong River (Hue City), Tra Khuc River, Ve River (Quang Ngai) will rise to alert level 1-alarm 2, some places above alert 2; Vu Gia-Thu Bon River (Da Nang City), Kon River (Gia Lai), Ba River (Dak Lak) will rise to alert level 1; Ky Lo River (Dak Lak), Dinh Ninh Hoa River (Khanh Hoa) may rise to alert level 2-alarm 3.

High risk of flooding in provinces from Quang Tri to Khanh Hoa, high risk of flash floods on rivers and streams and landslides on slopes in provinces from Quang Tri to Khanh Hoa (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 separate bulletins warning of flash floods and landslides).

Flood risk level 1-2. Floods on rivers and streams can cause flooding in low-lying areas along rivers, affecting activities such as waterway transport, aquaculture, agricultural production, people's lives and socio-economic activities.

Currently, the water level on rivers from Quang Tri to Khanh Hoa is fluctuating. The water level at 1:00 p.m. on October 25 on Kien Giang River (Quang Tri) at Le Thuy station was 1.73 m, 0.47 m below alarm level 2; on Bo River (Hue city) at Phu Oc station was 2.74 m, 0.26 m below alarm level 2; on Huong River (Hue city) at Kim Long station was 1.37 m, 0.37 m above alarm level 1.

Risk of flooding in low-lying coastal areas in the Southeast region

According to the 3:30 p.m. bulletin of the National Center for Hydro-Meteorological Forecasting, the highest water level at Vung Tau station is forecast to be 4 - 4.1 m in the next 24 hours.

In the next 24 - 72 hours, the water level in the eastern coastal area of the South will continue to change slowly. The highest water level at Vung Tau station is likely to reach 3.95 - 4.05 m. It is forecasted that due to the influence of high tides, the eastern coastal area of the South needs to pay attention to prevent high risks of flooding and dike overflow in low-lying, low-lying coastal areas, along rivers, outside the dike, affecting traffic, agricultural production, aquaculture, water pollution and people's lives in the eastern coastal area of the South.

Many sea areas have strong winds and high waves.

At sea, on the night of October 25 and October 26, in the sea area from Quang Tri to Ca Mau, Ca Mau to An Giang, the Gulf of Thailand, the sea area south of the North East Sea area (including Hoang Sa special zone), the area between the East Sea and the South East Sea area (including Truong Sa special zone), there will be scattered showers and thunderstorms, with the possibility of tornadoes, strong gusts of wind of level 6-7 and waves over 2m high during thunderstorms.

All vessels operating in the above areas are at high risk of being affected by strong winds and large waves.

Weather in different regions on the night of October 25 and October 26

Northwest:

- Some rain; sunny afternoon, cold night and morning. Light wind.

- Lowest temperature 16-19 degrees Celsius, some places below 16 degrees Celsius. Highest temperature 23-26 degrees Celsius, some places above 26 degrees Celsius.

Northeast:

- Rain in some places; sunny in the afternoon, cold at night and morning, cold in mountainous areas. Northeast wind level 2-3.

- Lowest temperature 18-21 degrees Celsius, in mountainous areas some places below 18 degrees Celsius. Highest temperature 23-26 degrees Celsius, some places above 26 degrees Celsius.

Hanoi City:

- No rain; sunny afternoon, cold night and morning. Northeast wind level 2-3.

- Lowest temperature 19-21 degrees Celsius. Highest temperature 24-26 degrees Celsius.

Provinces and cities from Thanh Hoa to Hue:

- In the North, there will be rain in some places and it will be cold; in the South, there will be moderate rain, heavy rain and thunderstorms, locally very heavy rain in some places, in thunderstorms there is a possibility of tornadoes, lightning and strong gusts of wind.

- North to Northwest wind level 2-3. Lowest temperature 18-21 degrees Celsius. Highest temperature 23-26 degrees Celsius.

South Central Coast:

- There will be heavy to very heavy rain and thunderstorms; in the South there will be rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain, in thunderstorms there is a possibility of tornadoes, lightning and strong gusts of wind.

- Northeast wind level 2-3. Lowest temperature 22-25 degrees Celsius. Highest temperature in the North 24-27 degrees Celsius; in the South 29-32 degrees Celsius.

Central Highlands:

- There will be rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain, thunderstorms with the possibility of tornadoes, lightning, hail and strong gusts of wind.

- Northeast wind level 2-3. Lowest temperature 19-22 degrees Celsius, some places below 19 degrees Celsius. Highest temperature 24-27 degrees Celsius.

Southern region:

- There will be showers and thunderstorms in some places; in the afternoon and at night there will be rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain in some places, in thunderstorms there is a possibility of tornadoes, lightning, hail and strong gusts of wind.

- Northeast to East wind level 2-3. Lowest temperature 23-26 degrees Celsius. Highest temperature 29-32 degrees Celsius.

Ho Chi Minh City:

- Northeast to East wind level 2-3. Lowest temperature 24-26 degrees Celsius. Highest temperature 30-32 degrees Celsius.

Source Vietnam+

Source: https://baophutho.vn/khong-khi-lanh-tang-cuong-bac-bo-thanh-hoa-va-nghe-an-co-noi-duoi-17-do-c-241696.htm