According to the National Center for Hydro-Meteorological Forecasting, a cold air mass from the north is moving southward.
Within the next 24 to 48 hours, by the early morning of October 1st, this cold front will reach the northeastern region, followed by the North Central, some parts of the northwestern region, and the central provinces. Winds will shift to the northeast, reaching level 3 in inland areas and levels 4-5 along coastal regions.
This cold front will cause cooler weather across the Northern and North Central regions, with cold conditions at night and early morning. The mountainous areas in the North will experience even colder conditions, with temperatures in high-altitude areas dropping below 16°C. Temperatures in Northern provinces and Thanh Hoa will range from 19-22°C, with mountainous areas between 17-19°C, and some places in high-altitude regions falling below 16°C. In Nghe An and Ha Tinh, temperatures will drop to 20-23°C.
In Hanoi, from the night of September 30 to the morning of October 1, there will be showers and thunderstorms. On the night of October 1, the weather will turn cooler, with temperatures between 21-23°C. Between October 2-4, the lowest temperatures will range from 19-21°C.
On the Gulf of Tonkin, from noon on October 1, northeast winds will strengthen to level 6, with gusts up to levels 7-8, causing rough seas and waves reaching 2-3 meters in height.
From the night of September 30 to the morning of October 1, northern provinces, Thanh Hoa, and Nghe An will experience moderate to heavy rain, with some areas receiving 20-40 mm of rain, and localized areas getting more than 100 mm.
The weather agency warns that from the afternoon of October 1 to 2, areas from Ha Tinh to Thua Thien Hue will experience moderate to heavy rain and thunderstorms, with rainfall amounts ranging from 30-70 mm, and localized areas receiving over 150 mm.
Tornadoes, lightning, hail, and strong winds may accompany thunderstorms.
Heavy rains in localized areas could lead to flooding in low-lying regions, flash floods in small rivers and streams, and landslides on steep slopes.
These storms, with accompanying strong winds, lightning, hail, and tornadoes, could damage agricultural crops, uproot trees, and damage homes, infrastructure, and transportation networks.
Strong winds and high waves at sea may disrupt fishing and other maritime activities.
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Source: Vietnam Insider