According to the National Center for Hydro-Meteorological Forecasting, cold air is currently affecting some mountainous areas in the North with weak intensity.
Today, December 6, cold air will continue to affect other places in the Northeast with weak intensity, causing the weather in this area to turn cold.
Northern region has scattered rain and showers. Hanoi region has scattered rain and cold weather.
Around December 7, the cold air will strengthen, affecting the Northwest, North Central, Central Central and some places in the South Central. The northeast wind inland will be strong at level 3-4, coastal areas at level 4-5.
The weather in the North is getting colder. The lowest temperature is generally 15 - 18 degrees Celsius, in mountainous areas 12 - 14 degrees Celsius, in high mountainous areas below 10 degrees Celsius. The average temperature is about 18 - 20 degrees Celsius, in mountainous areas 16 - 18 degrees Celsius.
Hanoi area from December 7th, the weather will turn cold. The lowest temperature in this cold air mass is commonly 15 - 18 degrees Celsius.
The North Central and South Central regions will have rain, showers, and locally heavy rain and thunderstorms. Thunderstorms may include tornadoes, lightning, and strong gusts of wind.
The meteorological agency warned that localized heavy rains could cause flooding in low-lying areas; flash floods on small rivers and streams, and landslides on steep slopes.
From the night of December 7, the weather in the North Central region will turn cold with the lowest temperature in this cold air mass commonly being 15 - 18 degrees Celsius.
At sea, in the Gulf of Tonkin on December 6, the wind will change direction from east to northeast, strong at level 4 - 5; from December 7, the northeast wind will gradually increase to level 6, gusting at level 7 - 8, rough seas; waves will be 1.5 - 3m high.
From the afternoon of December 7, the sea area from Quang Tri to Quang Ngai has strong northeast winds of level 6, gusting to level 7-8, rough seas; waves 2-4m high.
During the day and night of December 6, the eastern sea area of the North East Sea will have strong northeast winds of level 6, gusting to level 7-8; rough seas; waves 2-4m high.
From December 7, the North East Sea area (including Hoang Sa archipelago) will have strong northeast winds of level 6, especially in the northeast sea area at times of level 7, gusting to level 8 - 9; rough seas; waves 3 - 5m high.
Strong winds and large waves at sea are likely to affect boating and other activities.