By January 8, the cold spell is predicted to influence in the northern and central provinces on the large scale, causing medium- heavy rains and the northeastern monsoon of level 3-4 in the north- central and the mid- central provinces.
From January 9-14, both the north and north- central region are expected to experience a dangerous cold with the daytime temperature of 10- 12 degrees Celsius. The lowest temperature in the northern mountainous provinces could drop down 5- 10 degrees Celsius.
The cold weather is forecast lasting for at least one week.