The temperature is forecast to plummet below zero degree Celsius again in northern mountainous provinces from Sunday, while it is likely to drop in the central region, under the influence of an increased cold front from Saturday night.
The cold spell is moving southward, according to the National Center for Hydro-Meteorological Forecasting, and will leave its first impact on the northern mountainous provinces, then other places in the region, the central area and finally some south-central localities.
There will be rain and medium rain in the northern region Saturday night to Sunday morning and light rain in the central area on Sunday.
Localities in northern and north-central regions will experience extreme cold, especially in northern Cao Bang, Bac Kan, Lang Son, Ha Giang, and Lao Cai Provinces, with temperature falling to 8-11 degrees Celsius.
The temperature in the mountainous region will range between 4 and 7 degrees Celsius, with some high mountainous places to see mercury as low as below zero degree Celsius.
Sleet - a mixture of rain and snow - will be expected in Ha Giang and Lao Cai Provinces.
Temperatures in north-central provinces from Quang Tri to Quang Ngai will be around 14-18 degrees Celsius.
In the Central Highlands and south-central regions, people may feel extremely cold in the early morning and night of Sunday.
Meanwhile, in the southern region, the weather will also get colder.
From Monday, northern localities will see the return of sunlight during the day while the extreme cold will continue in the early morning and at night.
The Central Steering Committee for Natural Disaster Prevention and Control has ordered subordinate authorities to implement measures to keep the elderly, children, and students safe, in order to avoid similar damages caused by a previous strong cold spell hitting the north and north central provinces from January 7-11.
The students can be allowed to stay home if necessary.
Protection measures for animals and plants should also be carried out.
In addition, there must be proper safety guidelines for visitors looking to see frost and snow at tourist destinations.