According to the National Center for Hydro-Meteorological Forecasting, currently, in the north, a cold air mass is moving south. In the North, there is rain in some places, the lowest daily temperature is commonly from 17 - 20 degrees C.
Around the evening and night of January 20, this cold air mass will affect some places in the Northeast region.
On January 21, cold air will be strengthened more strongly, affecting other places in the Northeast, North Central, Northwest and Central Central regions.
On the mainland, from the evening and night of January 20, the wind will shift to the northeast with strong level 2-3, coastal areas level 3-4. From the evening and night of January 20 to January 22, in the North, Thanh Hoa and Nghe An, there will be scattered rain.
In the Northern and North Central regions, from January 21st, the weather will turn cold; especially in the mountainous and midland areas of the Northern region, around January 22nd - 23rd, there is a possibility of severe cold, with severe cold in some places. Mountainous areas of the Northern provinces should be wary of frost and frost. Severe cold, severe cold, frost and frost may affect livestock and poultry; affect the growth and development of crops.
The lowest temperature in this cold air wave in the Northern region, Thanh Hoa and Nghe An is commonly from 11 - 14 degrees Celsius, the Northern mountainous region from 8 - 11 degrees Celsius, and the high mountainous region in some places below 6 degrees Celsius.
Hanoi area from the evening of January 20 to January 22 will have scattered rain; from January 21 the weather will turn cold. The lowest temperature in this cold air wave is commonly from 12 - 14 degrees C.
The area from Ha Tinh to Da Nang city and the eastern provinces from Quang Ngai to Gia Lai will have rain, showers, locally moderate rain, heavy rain and thunderstorms from January 21 due to the influence of cold air. In thunderstorms, there is a possibility of lightning bolts, hail and strong gusts of wind.
Localized heavy rains are likely to cause flooding in low-lying areas; flash floods on small rivers and streams, landslides on slopes; heavy rain in a short period of time may cause flooding in urban areas and industrial parks.
