According to the National Center for Hydro-Meteorological Forecasting, cold air has now affected most of the Northeast region. In the Gulf of Tonkin, there are strong northeast winds of level 6-7, gusting to level 8.
During the day and night of November 26, cold air continues to affect other places in the Northeast, North Central, Northwest, then affects the Central Central. Northeast wind inland is strong at level 3-4, coastal areas at level 4-5.
The North and North Central regions are cold. The lowest temperature is commonly from 16 - 18 degrees Celsius, in mountainous areas 12 - 14 degrees Celsius, in high mountainous areas below 10 degrees Celsius. The average temperature is about 19 - 21 degrees Celsius, in mountainous areas 17 - 19 degrees Celsius.
Cold weather can affect crops and livestock.
Hanoi area is cold. The lowest temperature in this cold air mass is commonly 16 - 18 degrees Celsius.
Due to the influence of cold air, in the North Central and Central Central regions, there will be moderate rain, heavy rain, and locally very heavy rain and thunderstorms. Thunderstorms may include 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.
During the day and night of November 27, cold air continues to be active, the North and North Central regions maintain the lowest temperatures as during the day and night of November 26. However, the average temperature will decrease with an average temperature of about 18 - 20 degrees Celsius, in mountainous areas 16 - 18 degrees Celsius.
According to the temperature chart from the meteorological agency, November 26-27 is the time when cold air has the strongest impact.
From November 29, the North will have less clouds and sunshine, causing temperatures to tend to increase.
At sea, the Gulf of Tonkin and the North East Sea (including the Hoang Sa archipelago) have strong northeast winds of level 6 - 7, gusting to level 8 - 9, rough seas; waves 2 - 5m high.
The sea area from Quang Tri to Quang Ngai and the northern sea area in the central East Sea has strong northeast winds of level 6, gusting to level 7 - 8, rough seas, waves 2 - 4m high.
Strong winds and large waves at sea are likely to affect boating and other activities.