According to the National Center for Hydro-Meteorological Forecasting, cold air has now affected most places in the Central Central region and some places in the Northwest. The Gulf of Tonkin has strong northeast winds of level 7, gusting to level 9.
During the day and night of January 16, cold air continues to affect other places in the Central Central and Northwest regions. Northeast winds inland are strong at level 3, coastal areas at level 3-4, with gusts of level 6 in some places.
The Northern region and the area from Thanh Hoa to Hue continue to be cold, the mountainous areas of the North are very cold, with some places experiencing severe cold.
The Northern region, Thanh Hoa and Nghe An have the lowest temperature of about 9 - 12 degrees Celsius, the Northern mountainous region 6 - 9 degrees Celsius, the high mountainous region has some places below 5 degrees Celsius. The average temperature is about 16 - 18 degrees Celsius; mountainous region 13 - 15 degrees Celsius, some places below 13 degrees Celsius.
High mountain areas are prone to frost, ice and hoarfrost. Severe cold, frost, ice and hoarfrost can affect crops and livestock.
Hanoi area is cold. The lowest temperature in this cold air mass is commonly 9 - 12 degrees Celsius.
The area from Ha Tinh to Hue has the lowest temperature of about 14 - 17 degrees Celsius; the average temperature is about 17 - 19 degrees Celsius.
The area from Ha Tinh to Binh Dinh has rain, showers, locally heavy rain and thunderstorms. Local heavy rain can cause flooding in low-lying areas; flash floods on small rivers and streams, landslides on steep slopes.
Day and night of January 17, the temperature in the North tends to increase slightly.
The Northern region, Thanh Hoa and Nghe An have the lowest temperature of about 10 - 13 degrees Celsius, the Northern mountainous region 7 - 10 degrees Celsius, the high mountainous region has some places below 6 degrees Celsius. The average temperature is about 17 - 19 degrees Celsius; the Northern mountainous region 13 - 15 degrees Celsius, some places below 12 degrees Celsius.
The area from Ha Tinh to Hue has the lowest temperature of about 14 - 17 degrees Celsius; average temperature of 17 - 19 degrees Celsius.