According to the National Center for Hydro-Meteorological Forecasting, currently, cold air has affected the North Central region, some places in the Northwest and Central Central regions.
The Northern and North Central regions will have rain, moderate rain, locally heavy rain; the area from Quang Tri to Da Nang city will have moderate rain, heavy rain, locally very heavy rain; the temperature will decrease by 3 - 6 degrees Celsius. At Bach Long Vi station, there will be strong winds of level 7, sometimes level 8, gusting to level 9.
On December 14, cold air continues to affect other places in the Northwest and Central Central regions. The northeast wind on land is strong at level 3, coastal areas are strong at level 3-4.
The North and North Central regions are cold, some places are very cold; the mountainous and midland areas of the North are very cold, some mountainous areas are very cold. The weather is very cold, with severe cold in some places, which can affect livestock and poultry, while also affecting the growth and development of crops.
On the day and night of December 14, the Northern region has the lowest temperature commonly 12-15 degrees Celsius; mountainous and midland areas 8-11 degrees Celsius, high mountainous areas have places below 6 degrees Celsius. The average temperature commonly 15-17 degrees Celsius, mountainous and midland areas 13-15 degrees Celsius, high mountainous areas have places below 12 degrees Celsius.
The North Central region has the lowest temperature of 13-16 degrees Celsius, the average temperature is 16-18 degrees Celsius.
Day and night of December 15, the Northern region has the lowest temperature commonly 13-16 degrees Celsius; mountainous and midland areas 9-12 degrees Celsius, high mountainous areas below 8 degrees Celsius. The average temperature commonly 16-18 degrees Celsius, mountainous and midland areas 14-16 degrees Celsius, high mountainous areas below 13 degrees Celsius.
The North Central region has the lowest temperature of 15-18 degrees Celsius, the average temperature is 17-19 degrees Celsius.
The Hanoi area is cold, the lowest temperature in this cold air mass is generally 13-15 degrees Celsius.
Thanh Hoa and Nghe An areas during the day and night of December 14 are forecast to have scattered rain and showers; the area from Ha Tinh to Da Nang city and the east of Quang Ngai and Gia Lai provinces will have rain, moderate rain, locally heavy rain and thunderstorms due to the influence of cold air. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Localized 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.