According to the National Center for Hydro-Meteorological Forecasting, currently, the reported cold air mass is continuing to move south. In the North, there is light rain in some places, the common temperature is 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, the 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 northeast strongly at 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.
The Northern and North Central regions from January 21st will turn cold; especially the mountainous and midland areas of the Northern region around January 22nd - 23rd are likely to experience severe cold, with severe cold in some places. The lowest temperature in this cold air wave in the Northern region, Thanh Hoa and Nghe An is commonly from 11 - 14 degrees C, the mountainous areas of the Northern region from 8 - 11 degrees C, and the high mountainous areas have places below 6 degrees C.
Mountainous areas of the Northern provinces should be wary of frost and frost. Severe cold and frost, frost and frost are likely to affect livestock and poultry; affect the growth and development of crops.
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 from January 21. In thunderstorms, there is a possibility of lightning bolts, stone rain 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 time may cause flooding in urban areas and industrial parks.
