The latest update from the National Center for Hydro-Meteorological Forecasting, at 4:00 a.m. on July 21, the center of the storm was at about 21.5 degrees north latitude; 110.4 degrees east longitude, in the area north of the Lusi Peninsula (China), about 275 km east of Quang Ninh - Hai Phong. The strongest wind near the storm center is level 9 (75-88 km/h), gusting to level 11. The storm is moving west-southwest at a speed of 15-20 km/h.

Storm No. 3 will strengthen in the next 24 hours
It is forecasted that in the next 24 hours, the storm will move west-southwest at a speed of about 15 km/h and is likely to strengthen. At 4:00 a.m. on July 22, the center of the storm was at about 20.6 degrees north latitude; 107.7 degrees east longitude, in the northern area of the Gulf of Tonkin. The strongest wind near the storm center is level 10-11, gusting to level 14.
The danger zone is identified as being north of 19 degrees north latitude; from the longitude of 106.0 degrees east longitude to 112.5 degrees east longitude. The natural disaster risk level is level 3 for the northwestern sea area of the northern East Sea, the northern area of the Gulf of Tonkin, and coastal waters of provinces from Quang Ninh to Hung Yen.
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 and gradually weaken into a tropical depression. At 4:00 a.m. on July 23, the center of the tropical depression was at about 20.0 degrees north latitude; 105.2 degrees east longitude, on the mainland of Hung Yen - Thanh Hoa provinces. Strong wind level 6-7, gust level 9.
The danger zone is identified as the north of the 18-degree north latitude; the west of the 109.-degree east longitude. Level 3 natural disaster risk for the Gulf of Tonkin and coastal waters of provinces from Quang Ninh to Nghe An.
It is forecasted that in the next 72 hours, the storm will move west-southwest at a speed of 10-15 km/h, continuing to gradually weaken into a low pressure area. At 4:00 a.m. on July 24, the center of the low pressure area was at about 19.5 degrees north latitude; 102.7 degrees east longitude, on the mainland of upper Laos. Wind power below level 6.
The danger zone is north of 18 degrees north latitude; west of 107 degrees east longitude. Level 3 natural disaster risk for the Gulf of Tonkin, coastal waters and mainland provinces from Quang Ninh to Nghe An.
impacts of the storm from today, July 21
Forecast of the impact of the storm at sea, the northwestern sea area of the northern East Sea will have strong winds of level 7-8, the area near the storm's center will have level 9, gusting to level 11. The waves are 4-6 m high, the sea is very rough.
The northern sea area of the Gulf of Tonkin (including the areas of Bach Long Vi, Co To, Cat Hai, Hon Dau island) will have strong winds of level 6-7, then increase to level 8-9, the area near the storm's eye will have level 10-11, gusting to level 14. Waves 2-4 m high, near the center of the storm 3-5 m, the sea is rough.
The southern sea area of the Gulf of Tonkin (including Hon Ngu island) will have winds gradually increasing to level 6-7, near the storm center level 8-9, gusting to level 11. Waves are 2-4 m high, the sea is very rough.
The coastal area of Hai Phong - Quang Ninh has storm surge water from 0.5-1.0 m. The water level at Hon Dau (Hai Phong) is 3.7-4.1 m high, at Cua Ong (Quang Ninh) is 4.4-4.8 m high, at Tra Co (Quang Ninh) is 3.6-4.0 m high. There is a high risk of flooding in coastal areas and river mouths on the afternoon of July 22.
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 the dangerous area 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, thunderstorms, whirlwinds, large waves, and rising sea levels.
On land, from the evening and night of July 21, coastal areas from Quang Ninh to Nghe An will have winds gradually increasing to level 7-9, near the storm center level 10-11, gusting to level 14. The deep inland area has strong winds of level 6, gusting to level 7-8. Winds of level 10-11 can cause trees, electric poles to fall, and roofs to fall, causing very heavy damage.
Regarding heavy rain, from July 21 to July 23, in the northeastern region, the northern plains of the Ministry, Thanh Hoa and Nghe An, there will be heavy to very heavy rain and thunderstorms with common rainfall of 200-350 mm, locally over 600 mm. Other places in the northern region and Ha Tinh will have moderate rain, heavy rain, locally very heavy rain and thunderstorms with common rainfall of 100-200 mm, locally over 300 mm. Warning of the risk of heavy rain over 150 mm in 3 hours. Heavy rainfall in a short period of time can cause flash floods, landslides in mountainous areas, and flooding in low-lying areas.