According to the latest weather forecast from the National Center for Hydro-Meteorological Forecasting, from around the night of March 4 and 5, this cold air mass will have a weak impact on the mountainous areas of the Northeast.
Around the night of March 5 and March 6, the cold air will be strengthened, affecting other places in the Northeast and North Central regions, then affecting the Northwest and some places in the Central Central region. On land, the wind will gradually strengthen to level 3-4, coastal areas level 4-5, and some places will gust to level 6.
In the North from March 5, the temperature will gradually decrease. From the night of March 5, the North and North Central regions will turn cold, with some places in the North experiencing severe cold. From March 6, the mountainous areas of the Northeast will be very cold, with some places experiencing severe cold.

From around the night of March 6, the area from Quang Binh to Hue will turn cold. The lowest temperature in this cold air mass in the North is generally from 12-15 degrees, in high mountains it is below 8 degrees.
The North Central region generally has 14-17 degrees, Quang Binh to Hue generally has 16-19 degrees.
In Hanoi, the weather will turn cold from early morning on March 6. The lowest temperature in this cold air mass is generally 13-15 degrees.
In the north of the Gulf of Tonkin, from the night of March 4, the wind will shift to the Northeast at level 4-5. From the night of March 5, in the Gulf of Tonkin, the Northeast wind will gradually increase to level 6, sometimes level 7, gusting to level 8-9, rough seas, waves 2.0-3.5m high. In the North East Sea area (including the sea area of Hoang Sa archipelago), the Northeast wind will be strong at level 6, sometimes at level 7, gusting to level 8-9, gradually increasing to level 7, gusting to level 9, rough seas, waves 3.0-5.0m high.
From the night of March 6, the sea area from Quang Tri to Khanh Hoa will have northeast winds gradually increasing to level 6, gusting to level 7-8; waves 2.0-4.0m high.
Due to the influence of the strengthening cold air combined with the strong wind in the high-altitude Western wind zone, from March 5-6, the Northern and North Central regions will have scattered rain and light rain.
The severe cold in the mountainous areas of the Northeast is likely to last until around March 8.
In this weather situation, people and tourists coming to the Northern region should bring warm clothes and thermal clothing when going out. Don't forget to monitor weather forecasts and bring umbrellas and raincoats to prevent sudden changes in weather.