According to the National Center for Hydro-Meteorological Forecasting, currently (October 25), the north has a cold air mass moving south.
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. The northeast wind inland is strong at level 2 - 3, coastal areas at level 3 - 4.
In the Northern provinces, Thanh Hoa and Nghe An, the night and morning will continue to be cold, and the mountainous areas will be cold. The lowest temperature in this cold air mass in the Northern region, Thanh Hoa and Nghe An is generally 19 - 22 degrees Celsius, in mountainous areas it is below 17 degrees Celsius. The average temperature is about 23 - 25 degrees Celsius, in mountainous areas it is below 22 degrees Celsius.
Hanoi area is cold at night and early morning. The lowest temperature in this cold air mass is generally 19 - 21 degrees Celsius.
The meteorological agency warns that the cold weather at night and in the morning can affect health.
The area from South Quang Tri to Lam Dong is forecast to have moderate rain, heavy rain and thunderstorms due to the influence of increased cold air combined with disturbances in the high-altitude East wind zone, 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.
Heavy rain is likely to cause flooding in low-lying areas; flash floods on small rivers and streams, landslides on steep slopes; heavy rain in a short period of time can cause flooding in urban areas and industrial parks.
At sea, from early morning on October 26, the Northeast wind in the Gulf of Tonkin gradually increased to level 6, gusting to level 7 - 8, rough seas, waves 1.5 - 3.5 m high. The North East Sea area has strong Northeast winds of level 6, sometimes level 7, gusting to level 8 - 9, rough seas, waves 3 - 5 m high.
Strong winds, gusts of wind and large waves at sea are likely to affect the operation of ships and other activities.