According to the National Center for Hydro-Meteorological Forecasting, due to the strengthening of cold air, the Gulf of Tonkin currently has strong northeast winds of level 7, gusting to level 8-9; at Ly Son island station, there are strong gusts of level 7.
On the day and night of December 28, the North East Sea area (including the Hoang Sa archipelago) had strong winds of level 7, gusting to level 9. The sea was rough, with waves 4 - 6m high.
The area between the East Sea and the sea from Quang Tri to Binh Thuan has strong winds of level 6, sometimes level 7, gusting to level 8 - 9. The sea is rough, with waves 4 - 6m high.
The sea area from Ba Ria - Vung Tau to Ca Mau and the sea area west of the South China Sea (including the sea area west of Truong Sa archipelago) has strong winds of level 6, gusting to level 7 - 8. Rough sea, waves from 3 - 5m high.
Gulf of Tonkin has strong winds of level 6, sometimes level 7, gusting to level 8 - 9. Rough seas. From the night of December 28, the wind will gradually decrease.
The central and southern areas of the East Sea and the Gulf of Thailand will have scattered showers and thunderstorms. Thunderstorms may produce tornadoes and strong gusts of wind.
Day and night of December 29, in the North East Sea area (including the Hoang Sa archipelago), strong northeast wind level 6 - 7, gusting to level 8 - 9. Rough sea. Waves 4 - 6m high.
The sea area from Binh Dinh to Ninh Thuan, the central East Sea area has strong northeast wind level 6, gusting to level 7 - 8. Rough sea, waves 3 - 5m high.
The sea area from Binh Thuan to Ca Mau, the sea area west of the South China Sea (including the sea area west of Truong Sa archipelago) has strong northeast wind level 6, sometimes level 7, gusting to level 8 - 9. The sea is rough, waves are 3 - 5m high.
The risk level for natural disasters due to strong winds at sea is level 2. All vessels operating in the above areas are at high risk of being affected by tornadoes, strong winds and large waves.