According to the National Center for Hydro-Meteorological Forecasting, currently, cold air has affected most places in the Northeast region. In the Northeast region, there is scattered rain, the temperature has decreased from 3 - 6 degrees Celsius. The Gulf of Tonkin has had strong northeast winds of level 6.
On January 21st, day and night, this cold air mass will continue to affect other places in the Northeast, North Central, and Northwest regions, then affect the Central Central region. On land, Northeast wind level 2-3, coastal areas level 3-4. On January 21st, day and night, the North, Thanh Hoa and Nghe An will have scattered rain.
The Northern and North Central regions simultaneously reduced temperatures. From January 21 to around January 23, the Northern region will be very cold, with severe cold in mountainous areas; the North Central region will turn cold.
On January 21st, day and night, the mountainous and midland regions of the North have the lowest temperature of 8-11 degrees Celsius, the high mountainous areas have places below 6 degrees Celsius, the average temperature is 13-15 degrees Celsius.
The Northern Delta has the lowest temperature of 11-14 degrees Celsius, the average temperature of 14-16 degrees Celsius.
Thanh Hoa and Nghe An have the lowest temperature of 14-16 degrees C, the average temperature of 17-19 degrees C.
On January 22nd, day and night, the mountainous and midland regions of the North have the lowest temperature of 8-11 degrees Celsius, the high mountainous areas have places below 6 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 13-15 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, mountainous areas 8-11 degrees Celsius, high mountainous areas in some places below 6 degrees Celsius; in the North Central region 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 and frost can cause leaf burns, slowing down the growth and development of crops.
Hanoi area will have rain on January 21st day and night; from January 21st to around January 23rd, it will be very cold. The lowest temperature in this cold air wave is commonly 11 - 14 degrees Celsius.
The area from Ha Tinh to Da Nang city and the eastern provinces from Quang Ngai to Gia Lai from the evening of January 21 to January 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 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.
