According to the National Center for Hydro-Meteorological Forecasting, currently, cold air is continuing to move south. The North has light rain in some places, the lowest temperature is commonly 18 - 21 degrees C.
Around late afternoon and night of January 20, this cold air mass will affect the Northeast region, then affect other places in the Northeast, North Central, Northwest and Central Central regions.
From the evening and night of January 20, the wind will shift northeast to level 2 - 3, coastal areas level 3 - 4. From the evening and night of January 20 to January 22, the North, Thanh Hoa and Nghe An will have scattered rain.
The Northern region, from the night of January 20th, will turn cold; the North Central region from January 21st, will turn cold.
From January 21 to around January 23, the North will be very cold, with severe cold in mountainous areas.
On the night of January 20 and January 21, the mountainous and midland regions of the North have the lowest temperature of 11-14 degrees Celsius, the high mountainous areas have places below 10 degrees Celsius, the average temperature is 13-15 degrees Celsius.
The Northern Delta has the lowest temperature of 12-15 degrees Celsius. The average temperature is 14-16 degrees Celsius.
Thanh Hoa and Nghe An have the lowest temperature of 15-18 degrees C, the average temperature of 17-19 degrees C.
On the night of January 21st and January 22nd, the mountainous and midland regions of the North have the lowest temperature of 8-11 degrees Celsius, the high mountainous areas have places below 8 degrees Celsius, the average temperature is 12-14 degrees Celsius.
The Northern Delta has the lowest temperature of 11-14 degrees Celsius, the average temperature of 13-15 degrees Celsius.
North Central Coast has the lowest temperature of 14-17 degrees C, the average temperature of 15-17 degrees C.
The lowest temperature in this cold air wave in the North is commonly 11-14 degrees Celsius, the Northern mountainous region 8-11 degrees Celsius, the high mountainous region in some places below 6 degrees Celsius; the North Central region is commonly 13-16 degrees Celsius.
High mountainous areas in the Northern provinces should be wary of frost. Severe cold and frost can affect public health. Severe cold and frost reduce resistance, increase the risk of disease outbreaks, causing damage to livestock and poultry. In agricultural production, severe cold, frost and frost can cause leaf burns, slowing down the growth and development of crops.
Hanoi area from the evening of January 20 to January 22 will have rain, the weather will turn cold; from January 21 to around January 23, it will be very cold. The lowest temperature in this cold air wave is commonly 11-14 degrees C.
The area from Ha Tinh to Da Nang city and the eastern provinces from Quang Ngai to Gia Lai from January 21 - 23, it is forecast to have rain, showers, locally moderate rain, heavy rain and thunderstorms due to the influence of cold air. In thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Localized heavy rain is likely to cause flooding in low-lying areas; flash floods on small rivers and streams; landslides on slopes; heavy rain in a short time causes flooding in urban areas and industrial parks.
