According to the Center for Hydro-Meteorological Forecasting, on December 28, cold air affected the Northwest and some places in the Central Central region. In the Gulf of Tonkin, there were strong northeast winds of level 7, gusting to level 8-9.
Cold air continues to affect other places in the Central Central region and some places in the South Central region. Northeast wind inland is strong at level 2-3, coastal areas at level 3-4.
In the North and the area from Thanh Hoa to Thua Thien Hue, the weather continues to be cold, with some mountainous areas in the North experiencing severe cold.
The lowest temperature in this cold air mass in the North and North Central regions is generally from 11-14 degrees Celsius, in the mountainous areas of the North it is below 10 degrees Celsius; in the area from Quang Binh to Thua Thien Hue it is generally 14-17 degrees Celsius.
Hanoi area is cold. The lowest temperature in this cold air mass is commonly 11-14 degrees Celsius.
In the Gulf of Tonkin, the Northeast wind is strong at level 6, sometimes at level 7, gusting to level 8-9; the sea is rough; the waves are 2.0-4.0m high. In the North East Sea area (including the Hoang Sa archipelago), the Northeast wind is strong at level 7, gusting to level 9; the sea is rough; the waves are 4.0-6.0m high.
The sea area from Quang Tri to Ca Mau, the central East Sea area, the western sea area of the southern East Sea area (including the western sea area of Truong Sa archipelago) has strong northeast wind level 6, sometimes level 7, gusting to level 8-9; rough seas; waves from 4.0-6.0m high.
Due to the influence of the cold air strengthening, on December 28, in the area from Thua Thien Hue to Phu Yen, there will be moderate rain, heavy rain, locally very heavy rain and thunderstorms.
Residents and visitors in areas forecast to be affected by the cold front should be on guard against thunderstorms with the possibility of tornadoes, lightning and strong gusts of wind. Heavy rains are likely to cause flooding in low-lying areas; flash floods in small rivers and streams; and landslides on steep slopes.
