According to the National Center for Hydro-Meteorological Forecasting, currently (December 2), the cold air mass is still moving south.
At around the morning of December 3, cold air will affect the Northeast region, then affect the North Central region, the Northwest region and the North of the Central Central region. On land, strong northeast winds of level 2 - 3, coastal areas of level 3 - 4.
The Northern and North Central regions will be cold from the night of December 3, with some mountainous areas in the North experiencing severe cold.
Day and night on December 3, the Northern region has the lowest temperature of 14 - 17 degrees Celsius, mountainous areas 13 - 15 degrees Celsius, some places below 12 degrees Celsius. The average temperature is 18 - 20 degrees Celsius, mountainous areas 16 - 18 degrees Celsius, high mountainous areas below 15 degrees Celsius. The North Central region has the lowest temperature of 15 - 18 degrees Celsius; the average temperature is 18 - 20 degrees Celsius.
Day and night on December 4, the Northern region has the lowest temperature of 15 - 18 degrees Celsius, mountainous areas 13 - 16 degrees Celsius, some places below 12 degrees Celsius. The average temperature is 18 - 20 degrees Celsius, mountainous areas 16 - 18 degrees Celsius, high mountainous areas below 15 degrees Celsius. The North Central region has the lowest temperature of 15 - 18 degrees Celsius; the average temperature is 19 - 21 degrees Celsius.
The lowest temperature in this cold air mass in the Northern region is generally from 14 - 17 degrees Celsius, in the mountainous areas of the North it is generally from 13 - 15 degrees Celsius, in some places below 12 degrees Celsius; in the North Central region it is generally from 15 - 18 degrees Celsius.
The Hanoi area will be cold from the night of December 3. The lowest temperature in this cold air mass is generally 15 - 18 degrees Celsius.
Cold weather is likely to affect livestock and poultry; affecting the growth and development of crops.
The area from South Quang Tri to Da Nang city, the east of the provinces from Quang Ngai to Dak Lak and Khanh Hoa will have moderate rain, widespread heavy rain from the night of December 2 to 4 due to the influence of the strengthening cold air combined with the circulation of the low pressure area weakened by storm No. 15, above which is the disturbance in the winter wind zone.
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 causing flooding in urban areas and industrial parks.