According to the National Center for Hydro-Meteorological Forecasting, at 1:00 p.m. on October 21, the center of the storm was at about 17.5 degrees north latitude; 112.2 degrees east longitude, in the sea north of Hoang Sa special zone, about 450 km east-northeast of Da Nang city. The strongest wind near the storm center is level 9-10 (75-102 km/h), gusting to level 12. The storm is moving southwest at a speed of 10-15 km/h.
The storm is weakening before making landfall
It is forecasted that in the next 24 hours, the storm will move west-southwest at a speed of 10-15 km/h and is likely to gradually weaken. At 1:00 p.m. on October 22, the center of the storm was at about 16.2 degrees north latitude; 109.6 degrees east longitude, about 145 km east-northeast of Da Nang city. Strong wind level 8, gust level 10.
The dangerous area in the East Sea in the next 24 hours will be the area north of latitude 15 degrees north and east of longitude 108.5-113.5 degrees east. The natural disaster risk level is level 3 for the western sea area of the northern East Sea (including the Hoang Sa special zone) and the sea area from southern Quang Tri to Quang Ngai.
It is forecasted that in the next 48 hours, the storm will continue to move west-southwest at a speed of 10-15 km/h, gradually weakening into a tropical depression, then a low pressure area. At 1:00 p.m. on October 23, the center of the low pressure area was at about 15.0 degrees north latitude; 107.1 degrees east longitude, in the southern Laos area. The strongest wind is below level 6.
The dangerous area in the East Sea in the next 48 hours will be the area north of latitude 14.5-18.0 degrees north and west of longitude 111.0 degrees east. Level 3 natural disaster risk for the sea area from southern Quang Tri to Quang Ngai (including Con Co special zone, Cu Lao Cham island and Ly Son special zone), coastal mainland of provinces from Quang Tri to Da Nang city.
Ha Tinh to Quang Ngai heavy rain, high risk of flash floods and landslides
At sea, the sea area west of the northern East Sea (including Hoang Sa special zone) has strong winds of level 7-8, the area near the storm's eye has strong winds of level 9-10, gusts of level 12, waves 3.0-5.0 m high, the area near the storm's eye has 5.0-7.0 m high, the sea is very rough. The sea area from Quang Tri to Quang Ngai (including Con Co special area, Cu Lao Cham island and Ly Son special area) has strong winds of level 6, from the morning of October 22 increasing to level 7, the area near the storm's eye has level 8, gusts of level 10, waves 3-5 m high, rough seas.
The coastal areas of the provinces from Quang Tri to Da Nang will have storm surge of 0.3-0.5 m. All ships operating in the danger zone are at risk of being affected by thunderstorms, whirlwinds, strong winds and large waves. The coastal areas from Quang Tri to Da Nang need to be on guard against large waves combined with high tides and rising water due to wind causing flooding in low-lying areas and coastal erosion.
On land, due to the influence of the circulation of storm No. 12 combined with strong cold air, from the afternoon of October 22, the coastal mainland of the provinces from Quang Tri to Da Nang will have winds gradually increasing to level 6, sometimes level 7, gusting to level 8-9.
Due to the influence of storm circulation and cold air combined with winter wind disturbances and terrain effects, from noon on October 22 to October 27, the area from Ha Tinh to Quang Ngai is likely to have widespread heavy rain, with strong intensity concentrated from the afternoon of October 22 to the end of October 23. Total rainfall: Ha Tinh to northern Quang Tri and Quang Ngai 200-400 mm, locally over 500 mm; southern Quang Tri to Da Nang city generally 500-700 mm, locally over 900 mm. Warning of the risk of high-intensity rain with an intensity of over 200 mm/3 hours. The rain in the Central region is likely to last until the end of October 2025.
There is a high risk of flash floods and landslides in mountainous areas, flooding in low-lying areas and urban areas. Localities need to pay attention to safe operation of hydroelectric reservoirs and irrigation before, during and after the storm; prepare response plans for flood scenarios on rivers from Quang Tri to Quang Ngai that may reach alert level 3 and exceed alert level 3. The risk level of natural disasters due to floods and inundation is level 3.
At the same time, it is necessary to be on guard against the risk of thunderstorms, whirlwinds and strong gusts of wind in the area affected by the storm's circulation, both before and during the storm's landfall.
