Central Vietnam braces for more heavy rain, with some areas expecting over 300mm

According to the National Center for Hydro-Meteorological Forecasting, heavy to extremely heavy rain and thunderstorms affected areas from southern Quang Tri Province to Da Nang City and eastern Quang Ngai Province on October 8.

Between 7am and 3pm, rainfall exceeded 90mm in several locations. Ho Thai Xuan in Da Nang recorded 256.2mm, while Binh Tri in Quang Ngai received 136.6mm and Bach Ma in Hue City recorded 98.2mm.

Heavy rain is expected to continue across Da Nang and eastern Quang Ngai on the night of October 8, with widespread rainfall of 30 to 70mm and isolated areas receiving more than 120mm. Thunderstorms and particularly intense downpours are also forecast. Rainfall in these areas is expected to gradually ease from October 9.

From the night of October 8 through October 9, areas stretching from Ha Tinh to northern Quang Tri are forecast to receive 50 to 100mm of rain, with some locations exceeding 150mm. Further south, from southern Quang Tri to Hue City, rainfall could reach 100 to 200mm, with isolated areas recording more than 300mm.

Forecasters have also warned of intense rainfall exceeding 100mm within just three hours.

On the night of October 9 and throughout October 10, the heavy rain is expected to spread further north into Thanh Hoa and Nghe An provinces, bringing widespread rainfall of 40 to 80mm and more than 150mm in some areas.

Meanwhile, the region from Ha Tinh to Hue City could see another 50 to 100mm of rain, with isolated rainfall exceeding 200mm.

From the night of October 10 through October 11, moderate rain and thunderstorms are expected to persist from southern Quang Tri to eastern Quang Ngai, with rainfall generally ranging from 20 to 50mm and exceeding 80mm in some locations.

The prolonged spell of heavy rain is forecast to begin easing from October 12.

Hanoi expects showers as cooler weather continues

After several days of dry, mildly chilly weather and hazy sunshine under the influence of a cold air mass, parts of northern Vietnam, including Hanoi, are expected to see the return of rain and thunderstorms, accompanied by a slight drop in temperatures.

On October 9 and 10, scattered showers and thunderstorms are forecast across the northern plains and midland areas, with locally heavy rain possible.

Cool conditions will persist overnight and in the early morning across the region, while mountainous areas may experience colder temperatures.

The shift marks a change in northern Vietnam's recent weather pattern as the rain belt affecting central provinces gradually moves northward.

Southern Vietnam faces heightened flood risks as heavy rain coincides with high tides

In southern Vietnam, moderate rain and scattered thunderstorms are forecast for the evening and night of October 8 across areas from Dak Lak to Lam Dong and throughout the southern region.

Rainfall is expected to range from 20 to 40mm, with isolated locations receiving more than 80mm.

The Southern Regional Hydro-Meteorological Center has warned that widespread heavy rain will continue across southern Vietnam, including Ho Chi Minh City, through October 10.

The persistent rainfall is being driven by a tropical convergence zone extending across south-central and southern Vietnam.

October 8 is forecast to be the wettest day of the period, with moderate to extremely heavy rain expected from the afternoon into the evening. Thunderstorms may bring whirlwinds, lightning and strong wind gusts, while scattered showers are likely to continue overnight.

The rainfall comes as water levels in rivers and canals across Ho Chi Minh City and the southern region are rising due to high tides associated with the beginning of the ninth lunar month.

High tides occur twice daily, typically in the early morning and late afternoon or evening. The evening peak could coincide with heavy rainfall, increasing the likelihood of flooding in riverside communities, canal-side neighborhoods and low-lying areas.

The tidal surge is forecast to peak between October 10 and 12. In Ho Chi Minh City, peak water levels could exceed the third and highest flood warning level by 0.1 to 0.17 meters.

Residents in flood-prone areas are advised to closely monitor rainfall and tidal forecasts and take appropriate precautions, particularly when heavy downpours coincide with peak high tides.

Bao Anh