On the night of October 1, cold air reached most areas in the North. In the Gulf of Tonkin, the Northeast wind increased in strength, reaching level 6 and could gust to level 7.
According to the latest announcement from the National Center for Hydro-Meteorological Forecasting, on the night of October 1 and October 2, cold air will continue to affect other areas in the North and North Central regions, before affecting some areas in the Central Central region.
Northeasterly winds on land remain at force 3, while coastal areas may reach force 4-5.
According to forecasts, in the North and North Central regions, temperatures will drop, especially at night and early morning. Cold spells may appear in mountainous areas.
The lowest temperature ranges from 19 - 22 degrees Celsius in the North and Thanh Hoa, in mountainous areas from 17 - 19 degrees Celsius, in some places below 16 degrees Celsius. In Nghe An - Ha Tinh, the lowest temperature ranges from 20 - 23 degrees Celsius.
During the night of October 1 and the day of October 2, temperatures in the Northern region and Thanh Hoa will range from 20 to 23 degrees Celsius, while mountainous areas may be colder with temperatures from 18 to 20 degrees Celsius, and in some places below 17 degrees Celsius.
By the night of October 2 and October 3, temperatures will continue to drop, with the lowest levels ranging from 19 to 22 degrees Celsius in the North and Thanh Hoa, while in mountainous areas it will be from 17 to 19 degrees Celsius, with some places possibly dropping below 16 degrees Celsius.
In Nghe An and Ha Tinh, the lowest temperature is forecast to be around 20 to 23 degrees Celsius.
In Hanoi, the night of October 1 will have temperatures from 21 - 23 degrees Celsius. From the night of October 2 to 4, the lowest temperature is forecast to drop to 19 - 22 degrees Celsius.
Regarding rainfall, from the night of October 1 to October 2, the area from Southern Nghe An to Thua Thien Hue is forecast to have moderate to heavy rain, with some places experiencing extremely heavy rain, with total rainfall ranging from 30-70mm, possibly exceeding 150mm in some places.
On the night of October 1, the Northwest, Northern Delta, Thanh Hoa and Northern Nghe An will also have scattered showers and thunderstorms, with rainfall from 10-30mm, locally over 70mm.
Thunderstorms may be accompanied by tornadoes, lightning, hail and strong winds.
At sea, the Northeast wind in the Gulf of Tonkin will continue to strengthen, reaching level 6 and possibly gusting to level 7-8, causing rough seas with waves 2.0 - 3.0m high.
The National Centre for Hydro-Meteorological Forecasting also forecasts heavy rains that could cause flooding in low-lying areas, increasing the risk of flash floods on small rivers and streams and landslides in mountainous areas.
Extreme weather events such as thunderstorms, tornadoes, lightning, hail and strong winds will directly affect agricultural production, causing trees to fall, damage houses, traffic works and infrastructure.
Strong winds and large waves at sea can cause difficulties for shipping operations and other economic activities.
For tourists planning to travel to the North this week, this is a good time, when the weather is cool and pleasant. However, you should also be careful at night and early morning, and when traveling to some mountainous areas, because the weather will become colder. Be careful of the risk of landslides and flash floods due to heavy rain in mountainous areas.
In addition, in the context of heavy rain and thunderstorms, it is necessary to pay attention to natural disaster warnings, avoid traveling through areas at risk of flooding or landslides. Travelers should regularly monitor weather reports to have appropriate plans for their trips.