According to the National Centre for Hydro-Meteorological Forecasting, due to the storm’s impact, Bach Long Vi special zone (Hai Phong) experienced strong winds at level 8, with gusts reaching level 9; while Co To special zone (Quang Ninh) experienced strong winds at level 6, with gusts reaching level 9.
The strongest winds near the storm’s centre reached level 8 (62-74km/h), with gusts reaching level 10. The storm was moving slowly northwards at about 5km per hour.
Forecasts for the storm’s development over the next 72 to 120 hours indicate that it is likely to change direction towards the north-northeast, moving at 3-5km per hour, before gradually weakening into a tropical depression.
The storm’s expected impacts are as follows: the Gulf of Tonkin, including the special zones of Bach Long Vi, Van Don, Co To and Cat Hai, as well as Hon Dau Island, faces the risk of strong winds at levels 6-7, reaching level 8 near the storm’s centre, with gusts up to level 10; waves of 2-4m; and rough seas.
Coastal mainland areas of Quang Ninh Province and Hai Phong City face the risk of strong winds at levels 6-7, with gusts reaching levels 8-9.
Strong winds may blow off roofs, damage temporary structures, uproot or break trees and damage advertising signs, while affecting power supply systems, telecommunications and transport.
From August 22 to the night of August 24, the northeastern region, southern Phu Tho Province and Thanh Hoa are forecast to receive widespread rainfall of 100-200mm, with isolated areas receiving more than 400mm. Quang Ninh and Hai Phong City are expected to receive 250-350mm, with isolated areas receiving more than 600mm. Lang Son and Bac Ninh are forecast to receive 200-300mm, with isolated areas receiving more than 500mm. Rainfall is expected to continue beyond the night of August 24.
Heavy rain may cause flooding in urban areas, industrial parks and low-lying areas, while increasing the risk of flooding in rivers and small streams, flash floods and landslides in mountainous areas.