Latest update from the National Center for Hydro-Meteorological Forecasting, at 7:00 p.m. on September 23, the center of the super typhoon was at about 20.8 degrees north latitude; 116.1 degrees east longitude, in the northeastern sea of the northern East Sea.
The strongest wind near the center of the super typhoon is level 15-16 (167-201 km/h), gusting over level 17. Moving west-northwest at a speed of about 20 km/h.
It is forecasted that in the next 24 hours, the super typhoon will move west-northwest at a speed of 20-25 km/h and gradually weaken.
At 7:00 p.m. on September 24, the location was at about 21.7 degrees north latitude; 111.3 degrees east longitude, on the mainland along the coast of Guangdong province (China), about 350 km east of Mong Cai ( guangning). Strong storm intensity level 13, gust level 16.
The area of high wind danger from level 6 or higher is north of latitude 18.0 degrees north; east of longitude 109-119 degrees east. The natural disaster risk level is level 4 for the northern sea area of the northern East Sea; level 3 for the east of the northern Gulf of Tonkin.
It is forecasted that in the next 36 hours, the storm will move west at a speed of 20-25 km/h and continue to weaken.
At 7:00 a.m. on September 25, the location was at about 21.5 degrees north latitude; 108.7 degrees east longitude, in the waters of Quang Ninh - Hai Phong. Strong storm intensity level 9, gust level 11.
The area of high wind danger from level 6 or higher is north of latitude 19.5 degrees north; west of longitude 113.5 degrees east. The natural disaster risk level is level 3 for the northwestern sea area of the northern East Sea and the northern Gulf of Tonkin.
It is forecasted that in the next 48 hours, the storm will move west-southwest at a speed of about 25 km/h, weakening into a tropical depression, then a low pressure area.
At 7:00 p.m. on September 25, the location was at about 21.3 degrees north latitude; 105.5 degrees east longitude, on the mainland of the northeast of the North. Wind intensity below level 6. The area of high wind danger from level 6 or higher is north of latitude 19.5 degrees north; west of longitude 110.5 degrees east. The disaster risk level is level 3 for the northern Gulf of Tonkin and the northeast of the country.
Regarding the impact of the storm at sea, the sea area north of the northern East Sea will have strong winds of level 10-13, the area near the center of the super typhoon will have winds of level 14-16, gusts above level 17, waves above 10.0 m high, and rough seas.
From September 24, the eastern sea area of the northern Gulf of Tonkin (including Bach Long Vy special zone) will have winds gradually increasing to level 6-7, gusting to level 9. From the evening and night of September 24, the northern area of the Gulf of Tonkin (including Bach Long Vy, Van Don, Co To, Cat Hai and Hon Dau island) will gradually increase to level 8, waves 2-4m high, near the storm center will have level 9-10, gusts of level 12, waves 3-5m high, very rough seas.
Storm surge in coastal areas of Quang Ninh province has storm surge of 0.4-0.6 m high. There is a high risk of landslides on dykes and sea embankments, destroying aquaculture areas, ships and boats anchored along the coast due to strong winds, rising sea water and big waves.
On land, from early morning on September 25, coastal areas from Quang Ninh to Ninh Binh will have winds gradually increasing to level 6-7, near the storm center level 8-9, gusting to level1; deep inland areas in the northeast of the country will have strong winds of level 5, some places level 6, gusting to level 7-8. The level of impact according to the wind level of the storm is detailed in Appendix 1.
Regarding heavy rain, from the night of September 24 to the end of the night of September 26, in the northern region, Thanh Hoa and Nghe An, there will be heavy to very heavy rain with common rainfall of 100-250 mm, locally over 400 mm. Beware of heavy rain causing urban flooding. Heavy rain is likely to cause flooding in low-lying areas; flash floods on small rivers and streams, landslides on steep slopes.
Due to the influence of a wide storm circulation, it is necessary to be on guard against the risk of thunderstorms, tornadoes and strong gusts of wind both before and during the storm's landfall.