According to the National Center for Hydro-Meteorological Forecasting, at 7:00 a.m. on August 23, the center of the storm was at about 17.2 degrees north latitude; 116.6 degrees east longitude, about 480 km east-northeast of Hoang Sa Special Zone. The strongest wind near the storm center is level 8 (62 - 74 km/h), gusting to level 10; moving west-northwest at a speed of about 25 km/h.
The storm may strengthen to level 15
Mr. Mai Van Khiem - Director of the National Center for Hydro-Meteorological Forecasting said that in the next 24 hours, the storm is forecast to move west-northwest at a speed of 20 - 25 km/h and continue to strengthen.
At 7:00 a.m. on August 24, the center of the storm was at about 17.7 degrees north latitude; 111.5 degrees east longitude, in the northwest sea of Hoang Sa special zone. Strong wind level 10 - 11, gust level 14. The danger zone is from 16 to 20 degrees north latitude; from longitude 110 to 118 degrees east longitude. Level 3 natural disaster risk, the affected area is the northern East Sea (including Hoang Sa special zone).
It is forecasted that in the next 48 hours, the storm will move west-northwest at a speed of about 20 km/h.
At 7:00 a.m. on August 25, the center of the storm was at about 18.1 degrees north latitude; 107.3 degrees east longitude, in the sea from Thanh Hoa to Hue. Strong wind level 11 - 12, gust level 15. The danger zone is from 16 to 20 degrees north latitude; west of the longitude 114 degrees east longitude. Level 3 natural disaster risk, the affected area is the northwest of the East Sea (including Hoang Sa special zone), the Gulf of Tonkin and from southern Quang Tri to Thua Thien Hue.
It is forecasted that in the next 72 hours, the storm will move west-northwest, traveling about 15 km per hour and gradually weakening into a tropical depression.
At 7:00 a.m. on August 26, the center of the tropical depression was at about 18.5 degrees north latitude; 103.5 degrees east longitude, on the mainland of Central Laos. Strong wind level 6, gust level 8. The danger zone is from 16.5 to 20 degrees north latitude; west of the longitude 110 degrees east longitude. Level 3 natural disaster risk, the affected area is the Gulf of Tonkin and from southern Quang Tri to Hue.
Thanh Hoa to Quang Tri is the focus of heavy rain
According to Mr. Khiem, regarding the impact of the storm at sea, the northern East Sea area (including Hoang Sa special zone) has strong winds of level 8 - 9, the area near the storm's eye has level 10 - 11, gusts of level 14, waves 4 - 6 m high, the sea is very rough.
From the afternoon of August 24, the sea area from Thanh Hoa to Hue (including Con Co and Hon Ngu specialties) will have winds gradually increasing to level 6 - 8, then increasing to level 9 - 10, near the storm's eye level 11 - 12, gusting to level 15, waves 4 - 6 m high, near the eye 6 - 8 m, the sea will be very rough. From the night of August 24, the sea area north of the Gulf of Tonkin (including the Bach Long Vi special zone) will have winds gradually increasing to level 6 - 7, gusting to level 9, waves 2 - 3 m high, rough seas.
The coastal area of Thanh Hoa - Quang Tri has storm surge from 0.5 - 1 m high. The water level at Sam Son (Thanh Hoa) is 3.2 - 3.6 m high, at Hon Ngu (Nghe An) is 3.3 - 3.7 m high, at Vung Ang (Ha Tinh) is 3.1 - 3.4 m high and at Cua Gianh (Quang Tri) is 1.7 - 2 m high.
The meteorological agency warns that the weather at sea and in coastal mainland areas during the storm is extremely dangerous, unsafe for any vehicles or works operating in dangerous areas such as: tourist boats, passenger ships, transport ships, cages, aquaculture areas, dykes, embankments, coastal roads. Vehicles are likely to overturn, be destroyed, or be flooded due to strong winds, large waves, and rising sea levels.
"On land, from the night of August 24, on land from Thanh Hoa to Quang Tri, the wind will gradually increase to level 7 - 9, near the storm center level 10 - 12, gusting to level 14" - Mr. Khiem said.
Regarding the situation of heavy rain, the Director of the Meteorological Agency said that from the night of August 24 to the end of August 26, there is a possibility of widespread heavy rain in the northern plains and from Thanh Hoa to Hue.
"The common rainfall in this period is about 100 - 150 mm, some places over 250 mm; from Thanh Hoa to Quang Tri, there will be heavy to very heavy rain, the common rainfall is 150 - 300 mm, some places over 600 mm. There is a high risk of heavy rain with rainfall greater than 200 mm within 3 hours" - Mr. Khiem analyzed.
Notably, from August 25 to 26, the capital Hanoi and Da Nang city will have moderate rain, heavy rain and thunderstorms; Ho Chi Minh City will have rain, showers and thunderstorms in the late afternoon and evening. During thunderstorms, it is necessary to be on guard against the risk of tornadoes and strong gusts of wind.
