According to the National Center for Hydro-Meteorological Forecasting, cold air has currently affected the Northeast region, some places in the North Central and Northwest regions. The Gulf of Tonkin has strong northeast winds of level 6, sometimes level 7, gusting to level 8; rough seas.
During the day and night of February 3, this cold air mass continues to affect other places in the Northwest, North Central, Central Central and some places in the South Central. The northeast wind inland is strong at level 3, coastal areas at level 3-4, with gusts of level 6 in some places.
The Northern and North Central regions will be cold, especially in the mountainous regions of the North, with severe cold in some places; the area from Quang Binh to Hue will be cold from the night of February 3.
The Northern region has the lowest temperature of about 11 - 14 degrees Celsius, mountainous areas 8 - 10 degrees Celsius, high mountainous areas have places below 6 degrees Celsius. The average temperature is about 14 - 16 degrees Celsius; mountainous areas 12 - 14 degrees Celsius; Lai Chau, Dien Bien about 17 - 19 degrees Celsius.
The North Central region has the lowest temperature of about 14 - 16 degrees Celsius; average temperature of 16 - 18 degrees Celsius.
The area from Quang Binh to Hue has the lowest temperature of about 16 - 18 degrees Celsius; average temperature of 19 - 21 degrees Celsius.
Hanoi area is cold. The lowest temperature in this cold air mass is commonly 12 - 14 degrees Celsius.
Day and night 4.2, the temperature in the North does not fluctuate, the temperature in the Central region tends to decrease.
The Northern region has the lowest temperature of about 11 - 14 degrees Celsius, mountainous areas 8 - 10 degrees Celsius, high mountainous areas have places below 6 degrees Celsius. The average temperature is about 15 - 17 degrees Celsius; mountainous areas 12 - 14 degrees Celsius; Lai Chau, Dien Bien about 17 - 19 degrees Celsius.
The North Central region has the lowest temperature of about 13 - 15 degrees Celsius; average temperature of 15 - 17 degrees Celsius.
The area from Quang Binh to Hue has the lowest temperature of about 14 - 17 degrees Celsius; average temperature of 18 - 20 degrees Celsius.
Regarding notable situations due to the influence of cold air, on February 3, the Northern region will have scattered rain and showers. From February 3 to 4, the Central Central region will have rain and showers, locally with moderate rain, heavy rain and thunderstorms. Thunderstorms are likely to cause 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.
