According to the National Center for Hydro-Meteorological Forecasting, at 7:00 AM on August 25, the center of storm No. 4 was located at about 19.4 degrees North latitude - 108.0 degrees East longitude, over the sea area south-southeast of Bach Long Vi special zone.
The strongest wind near the storm center is strong at level 8 (62-74 km/h), gusting at level 10. The storm moves in a South-Southeast direction at a speed of 5-10 km/h.
Forecast for the next 24 hours, until 7:00 AM on August 26, the storm will move in a Northeast direction at a speed of 5-10 km/h. The storm's center is forecast to be at about 20.7 degrees North latitude - 109.5 degrees East longitude, over the eastern Gulf of Tonkin area, about 210 km east-northeast of Bach Long Vi special zone.
At that time, the storm still maintained intensity level 8, gusts level 10. The Gulf of Tonkin area, including Bach Long Vi special zone, has a disaster risk level of level 3.
By 7:00 AM on August 27, the storm will move in a North-Northeast direction at a speed of about 10 km/h. The storm's center is forecast to be at about 22.9 degrees North latitude - 110.3 degrees East longitude, on land in Guangxi province (China). The storm gradually weakens into a tropical depression, then into a low pressure area.
Due to the impact of the storm, last night and this morning (August 25), the Northern region had scattered showers and thunderstorms, locally heavy rain; the area from Thanh Hoa to Ha Tinh had moderate to heavy rain and thunderstorms, locally very heavy rain. Rainfall from 7 pm on August 24 to 8 am on August 25 in some places was over 70mm such as stations: Sam Muu 1 (Dien Bien) 97. 2mm, Chieng Hac (Son La) 83. 4mm, Thac Muoi (Nghe An) 76. 2mm, Son Lam (Ha Tinh) 71. 6mm...
Forecast for August 25, Nghe An, Ha Tinh and northern Quang Tri areas will have scattered showers and thunderstorms with rainfall of 10-25mm, locally heavy rain over 50mm.
In the evening and night of August 25, the North and Thanh Hoa will have showers and scattered thunderstorms with rainfall of 15-35mm, locally heavy rain over 80mm. In thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Rainstorms accompanied by tornadoes, lightning, hail and strong gusts of wind can affect agricultural production, causing trees to fall, damage to houses, traffic works, and infrastructure. Localized heavy rains are likely to cause flash floods on small rivers and streams, landslides on slopes, and flooding in low-lying areas.
During this time, the Gulf of Tonkin sea area, including Bach Long Vi special zone, has strong winds of level 6-7, near the storm center level 8, gusts of level 10. Sea waves are 2.0-4.0 m high, strong sea waves,
The meteorological agency warns ships operating in dangerous areas that are likely to be affected by thunderstorms, tornadoes, strong winds and high waves. Due to the impact of storm circulation, it is necessary to prevent the risk of thunderstorms, tornadoes and strong gusts of wind at sea.
Tourists planning to visit coastal tourist destinations in the North, especially the Gulf of Tonkin and Bach Long Vi special zone, need to proactively monitor storm developments and notifications from functional agencies before departing.
During the storm's impact, tourists should limit activities at sea, do not arbitrarily go to areas with large waves and strong winds; and proactively adjust their schedules when the weather becomes bad to ensure safety.