The 8am news on October 5 of Thanh Hoa Economic Zone Station said that at 07:00 on October 5, 2025, the center of the storm was at about 20.1°N; 111.6°E, in the sea northeast of Hainan Island (China), about 420km east-southeast of Quang Ninh. The strongest wind near the storm center is level 12-13 (118-149km/h), gusting to level 16, moving west-northwest at a speed of 20-25km/h.
It is forecasted that by 7:00 p.m. on October 5, the storm will be at about 20.9°N; 109.4°E, in the northeastern sea of the Gulf of Tonkin, about 190km east-southeast of Quang Ninh, level 12 intensity, gust level 15. By 07:00 on October 6, the storm in the border area of Quang Ninh (Vietnam) - Guangxi (China) was about 21.8°N; 107.5°E, down to level 9, gusting to level 12. By 7:00 p.m. on October 6, the storm weakened into a low pressure area at about 22.4°N; 105.5°E in the northern mountainous area.
In Thanh Hoa, from the night of October 5, the sea area will have winds gradually increasing to level 5, sometimes level 6, gusting to level 7; rough seas, waves 1-2m high.
From the night of October 05 to the end of October 17, there will be scattered rain to moderate rain, some places will have heavy rain; total rainfall in mountainous areas will be 30-60mm, some places will have over 60mm; coastal plains will be 20-40mm. Risk of flooding in low-lying areas, flash floods on small rivers and streams and landslides in steep mountainous areas.
The document recommends strengthening inspection of the safety of sea dykes, aquaculture areas and boat anchorage points; proactively draining water in urban areas and low-lying residential areas; reviewing areas at risk of landslides to evacuate people when necessary.
