From around the afternoon and night of March 15, this cold air mass will affect the Northeast, North Central and some places in the Northwest, then affect other places in the Northwest, Central Central and some places in the South Central.
Inland, the wind will gradually increase to level 3 - 4, coastal areas level 4 - 5, some places will gust to level 6.
The National Center for Hydro-Meteorological Forecasting predicts that from the night of March 15, the North and North Central regions will turn cold, with some mountainous areas in the North experiencing severe cold.
Cold, severe cold, and severe cold can affect livestock, poultry, and crop growth and development.
On the night of March 15 and March 16, the North will have the lowest temperature of about 15 - 18 degrees Celsius, in high mountainous areas below 13 degrees Celsius. The average temperature is about 18 - 20 degrees Celsius; in some places below 15 degrees Celsius; in the Northwest region, it will be 20 - 22 degrees Celsius.
The Hanoi area will turn cold from the night of March 15. The lowest temperature in this cold air mass is generally 14 - 16 degrees Celsius.
The North Central region has the lowest temperature of about 16 - 19 degrees Celsius; the average temperature is about 19 - 21 degrees Celsius.
From around March 17, the area from Quang Binh to Hue will turn cold.
Regarding another notable situation, due to the influence of the strengthening cold air, from the evening of March 15 to early morning of March 16, the Northern and North Central regions will have scattered rain, showers and thunderstorms in some places.
From the night of March 15, the area from Quang Binh to Khanh Hoa will have scattered showers and thunderstorms. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.