According to the National Center for Hydro-Meteorological Forecasting, around January 9, the cold air mass will strengthen and affect the Northeast region, then affect the North Central region and some places in the Northwest and North Central regions.
From the night of January 9, the area from Ha Tinh to Binh Dinh will have rain, scattered showers and thunderstorms, with some places having heavy rain from the night of January 9. Thunderstorms may cause tornadoes, lightning and strong gusts of wind.
Localized heavy rains can cause flooding in low-lying areas; flash floods in small rivers and streams, and landslides on steep slopes.
From the night of January 10, cold air continues to strengthen and affect other places in the Northwest and Central Central regions, and some places in the South Central region. Northeast winds inland gradually strengthen to level 2-3, and coastal areas to level 3-4.
The North, North Central and Central Central regions continue to be cold, with some areas in the mountainous and midland regions of the North experiencing severe cold. The lowest temperature during this cold spell in the North and North Central regions is generally 10 - 13 degrees Celsius, in the mountainous regions of the North 6 - 9 degrees Celsius, and in some high mountainous regions below 5 degrees Celsius.
Hanoi area is cold. The lowest temperature in this cold air mass is commonly 10 - 13 degrees Celsius.
The area from Quang Binh to Thua Thien Hue has a common temperature of 15 - 18 degrees Celsius.
Regarding sea weather, from noon and afternoon of January 9, the northeast wind in the North East Sea will gradually increase to level 6 - 7, gusting to level 8 - 9, rough seas, waves 4 - 6m high.From the afternoon of January 9, the Gulf of Tonkin, the central East Sea, the sea from Quang Tri to Khanh Hoa will increase the northeast wind to level 6, sometimes level 7, gusting to level 8 - 9, rough seas, waves 3 - 6m high.
Strong winds and big waves at sea are likely to affect the operation of ships and other activities.
