According to the National Center for Hydro-Meteorological Forecasting, there is currently a cold air mass moving south from the north.
Around the afternoon and night of November 24, cold air will affect the Northeast and North Central regions, then affect the Northwest and Central Central regions. On land, strong northeast winds of level 3 - 4, coastal areas of level 4 - 5.
The Northern and North Central regions will be cold from November 25, with some mountainous areas in the North experiencing severe cold.
On the night of November 24 and November 25, the lowest temperature in the Northern region will be 14 - 17 degrees Celsius, in mountainous areas 11 - 14 degrees Celsius, in high mountainous areas below 10 degrees Celsius. The average temperature is 17-19 degrees Celsius, in mountainous areas 14-16 degrees Celsius, in high mountainous areas below 13 degrees Celsius.
The North Central region has the lowest temperature of 15 - 18 degrees Celsius, the average temperature is 18 - 20 degrees Celsius.
The lowest temperature in this cold air mass in the Northern and North Central regions will generally be from 12 - 15 degrees Celsius, in high mountainous areas, some places will be below 10 degrees Celsius.
The Hanoi area from November 25 will be cold, the lowest temperature in this cold air mass will generally be 13 - 15 degrees Celsius.
The area from Hue, Da Nang and the east of Quang Ngai to Gia Lai province will have widespread heavy rain due to the influence of the strengthening cold air combined with disturbances in the high-altitude easterly wind zone.
Cold weather is likely to affect livestock and poultry; affecting the growth and development of crops. 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 caused flooding in urban areas and industrial parks. Strong winds and gusts, large waves at sea are likely to affect the operation of ships and other activities.
At sea, from the afternoon of November 24, in the Gulf of Tonkin, the northeast wind will gradually increase to level 6, gusting to level 7 - 8, rough seas, waves 2 - 4m high; the North East Sea area will have northeast winds gradually increasing to level 7, gusting to level 8 - 9, rough seas, waves 4 - 6m high. From the evening of November 24, the area from South Quang Tri to Khanh Hoa will have northeast winds gradually increasing to level 6, sometimes level 7, gusting to level 8 - 9, rough seas, waves 3 - 5m high.