After a series of days of maintaining foggy early morning, sunny days, and cold concentrated at night and in the morning, the weather in the North is about to change due to the impact of cold air. Mr. Hoang Phuc Lam - Deputy Director of the National Center for Hydro-Meteorological Forecasting provided comments on the upcoming northeast monsoon.

Sir, can you tell us when the cold air is forecast to affect and which areas will be affected?
- The latest information up to this point shows that around December 13, a strong cold air mass in the north will affect the Northeast region, then affect the North Central region, the Northwest region and the Central Central region.
The cold air affects the time of a wind convergence area from 1,500m to 5,000m in the North and Thanh Hoa, so from the night of December 12, the North and North Central regions will experience moderate rain, widespread heavy rain, and some places will have very heavy rain and thunderstorms.
What are the notable characteristics of the upcoming cold air mass, sir?
- Along with heavy rain in the North and North Central regions due to cold air, there is a risk of extreme weather phenomena such as thunderstorms, tornadoes and even hail. Cold air accompanied by rain will cause a sudden change of weather from dry cold to chilly cold due to high humidity in the air, mountainous and midland areas in the North are likely to experience widespread severe cold. This is the characteristic of this cold spell.
With the different nature of this cold air mass and the risk of dangerous phenomena. Can you make some recommendations for people to cope with severe cold?
- Depending on the time of cold air in winter, the dangerous weather will be different. In the early and late winter, when cold air is affected, it is often accompanied by strong thunderstorms, hail, and sometimes frost as cloud lighting appears all day and night. In the middle of the season, there will be severe cold, accompanied by frost, snow, sometimes light rains, prolonged drizzle causing moisture,...
This cold air mass, when affected by widespread moderate rain, heavy rain and possible hail, will have a huge impact on crops, livestock, poultry, etc.
Severe cold and severe cold also have a great impact on the health of people and livestock. Therefore, the first thing in the response is to cover the crops and keep the bodies of humans and animals warm. People should not go out when there is strong thunderstorms because this thunderstorm has the potential to be accompanied by hail.
Sea activities and coastal entertainment areas need to pay attention to the impact of strong northeast winds and strong gusts.
Another note is that people should regularly update official information on media, newspapers, radio, ... and electronic information portals of forecasting agencies to know the latest information about the impact of this cold air mass.
Sincerely thank you!