According to the National Center for Hydro-Meteorological Forecasting, at 10:00 a.m. on September 27, the center of the storm was at about 14.5 degrees north latitude; 114.9 degrees east longitude, about 370 km east-southeast of Hoang Sa Special Zone. The strongest wind near the storm center is level 11 - 12 (103 - 133 km/h), gusting to level 15. The storm is moving west-northwest at a speed of about 35 km/h.
Storm No. 10 will strengthen in the next 24 hours, gusting to level 16
It is forecasted that in the next 24 hours, the storm will move west-northwest, at a speed of about 30 km/h and is likely to strengthen. At 10:00 on September 28, the center of the storm was at about 16.9 degrees north latitude; 108.8 degrees east longitude, in the southern sea of Quang Tri - Quang Ngai, about 120 km east-northeast of Hue city. Strong winds of level 12 - 13, gusting to level 16.
The danger zone is latitude 12.5 degrees north - 20 degrees north; west of longitude 117.0 degrees east. Level 3 natural disaster risk for the northern and central East Sea (including Hoang Sa special zone); sea area from Ha Tinh to Quang Ngai.
It is forecasted that in the next 36 hours, the storm will move west-northwest, at a speed of 20 - 25 km/h. At 10:00 p.m. on September 28, the center of the storm was at about 18.0 degrees north latitude; 106.6 degrees east longitude, in the coastal waters from Nghe An to Quang Tri. Strong wind level 12, gust level 15.
The danger zone is north of latitude 14 degrees north; west of longitude 111.5 degrees east. The natural disaster risk level is level 4 for the coastal mainland area from Nghe An to north of Quang Tri; level 3 for the western sea area of the northern East Sea (including Hoang Sa special zone), northwest of the central East Sea, from Thanh Hoa to Quang Ngai (including Hon Ngu island, Con Co and Ly Son special zone) and north of the Gulf of Tonkin (including Bach Long Vy, Van Don, Co To, Cat Hai special zone and Hon Dau island); mainland area from Ninh Binh to Hue city.
It is forecasted that in the next 48 hours, the storm will continue to move west-northwest, at a speed of 20 - 25 km/h, weakening into a tropical depression. At 10:00 on September 29, the center of the tropical depression was at about 19.2 degrees north latitude; 104.3 degrees east longitude, in the Vietnam - Laos border area. Strong wind level 8, gust level 10.
The danger zone is north of latitude 15.5 degrees north; west of longitude 108.5 degrees east. Level 3 natural disaster risk for provinces from Thanh Hoa to Quang Ngai (including Hon Ngu island, Con Co and Ly Son specialties) and the northern Gulf of Tonkin (including Bach Long Vy, Van Don, Co To, Cat Hai specialties and Hon Dau island); mainland area from Ninh Binh to Hue City.
It is forecasted that in the next 60 hours, the storm will continue to move northwest, at a speed of 20 - 25 km/h and gradually weaken into a low pressure area. At 10:00 p.m. on September 29, the location was at about 20.3 degrees north latitude; 102.3 degrees east longitude, in the Upper Laos area, with winds below level 6.
Heavy rain from the night of September 27, strong winds from the afternoon of September 28
Regarding the impact of the storm at sea, the northern and central East Sea (including Hoang Sa special zone) will have strong winds of level 8 - 9, the area near the storm's eye will have winds of level 10 - 13, gusts of level 16, waves from 6 - 8 m high, the area near the storm's eye will have waves of 8 - 10 m, the sea will be very rough.
From the evening of September 27, the sea area from Thanh Hoa to Quang Ngai (including Hon Ngu island, Con Co and Ly Son special areas) will gradually increase to level 6 - 7, gusting to level 8 - 9, waves 3 - 5 m high, rough seas; from early morning of September 28, the area near the storm's eye will increase to level 8 - 9, the area near the storm's eye will have level 10 - 13, gusting to level 16, waves 5 - 7 m high, rough seas, extremely powerful destruction.
From early morning on September 28, 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 6 - 7, then increase to level 8 - 9, gusting to level 11, waves 3.0 - 5.0 m high, very rough seas.
Storm surge, coastal areas and islands from Ninh Binh - Ha Tinh will have water rising from 1 - 2 m, especially Thanh Hoa and Nghe An 1.5 - 2 m. High risk of flooding dykes, coastal roads, riverside due to rising sea water and big waves in the evening and night of September 28.
Weather warnings at sea and coastal areas during the storm are extremely dangerous and unsafe for any vehicle or project in operation. Risk of capsizing, destroying ships, cages, aquaculture areas; flooding, damaging dykes, embankments, coastal roads due to strong winds, big waves and rising sea levels.
On land, from the afternoon of September 28, the wind from Thanh Hoa to north of Quang Tri will gradually increase to level 6 - 7, then increase to level 8 - 9, near the storm center level 10 - 12, gust level 14, which can cause very heavy damage. Coastal areas from Quang Ninh to Ninh Binh, from southern Quang Tri to Hue City, winds will gradually increase to level 6 - 7, gusting to level 8 - 9.
Heavy rain from the night of September 27 to September 30, the North and the area from Thanh Hoa to Quang Ngai are likely to experience widespread heavy rain with a total common amount of 100 - 300 mm, locally over 450 mm; in the Northern Delta, southern Phu Tho and from Thanh Hoa to northern Quang Tri, it is common for 200 - 400 mm, locally over 600 mm.
