Storm No. 9 with gusts above level 17 is heading towards the North, warning of heavy rain over 400 mm

Storm No. 9 is moving in the West Northwest direction, gusting at level 17, at a speed of about 20 km/h, expected to enter Quang Ninh - Hai Phong and gradually weaken into a tropical depression.

Forecast map of storm No. 9's trajectory and intensity issued at 11:00 a.m. on September 23, 2025.

According to the National Center for Hydro-Meteorological Forecasting, at 10:00 a.m. on September 23, the center of storm No. 9 was at about 20.2 degrees North latitude; 117.7 degrees East longitude, in the northeastern sea area of ​​the North East Sea.

The strongest wind near the center of the super storm is level 16 - 17 (184 - 221 km/h), gusting above level 17. The storm moves in a West Northwest direction at a speed of about 20 km/h.

Forecast of super typhoon development (in the next 24 to 72 hours)

Forecasting the impact of storms

Due to the influence of the super typhoon, the northern sea area of ​​the North East Sea has strong winds of level 10 - 14, the area near the center of the super typhoon has winds of level 15 - 17, gusts above level 17, waves over 10 m high; rough seas.

From September 24, the eastern sea area of ​​Bac Bo Gulf (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 Bac Bo Gulf area (including Bach Long Vy special zone, Van Don, Co To, Cat Hai and Hon Dau island) will have winds gradually increasing to level 8 - 9, waves 2 - 4 m high, the area near the storm center will have winds of level 10 - 12, gusting to level 14, waves 4 - 6 m high; the sea will be very rough.

The coastal areas of Quang Ninh - Hai Phong provinces have storm surges of 0.5 - 1 meter high. There is a high risk of landslides on sea dykes and embankments, destruction of aquaculture areas, ships and boats anchored along the coast due to strong winds, rising sea levels and big waves.

From the night of September 24 to the night of September 26, the North, Thanh Hoa and Nghe An will have heavy to very heavy rain.

From the night of September 24 to the end of the night of September 26, the Northern region, Thanh Hoa and Nghe An will have 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 the wide storm circulation, it is necessary to guard against the risk of thunderstorms, tornadoes and strong gusts of wind both before and during the storm's landfall.

vtv.vn

Source: https://baolaocai.vn/bao-so-9-giat-tren-cap-17-huong-vao-bac-bo-canh-bao-mua-lon-tren-400-mm-post882723.html