Early morning on October 6, storm No. 11 entered the northern part of the Gulf of Tonkin and gradually weakened.

Photo caption — The movement of storm No. 11 at 4 p.m. on October 4. Photo: VNA

At 4:00 p.m. on October 4, the center of the storm was at about 18.5 degrees North latitude; 114.8 degrees East longitude, in the North East Sea, about 440km East Southeast of Hainan Island (China). The strongest wind near the center of the storm was level 12 (118-133km/h), gusting to level 15. Moving in the West Northwest direction, speed about 25km/h.

It is forecasted that by 4 p.m. on October 5, the storm will be in the western part of Leizhou Peninsula (China), about 250 km southeast of Quang Ninh , with strong winds of level 12, gusts of level 15; moving in the West Northwest direction at a speed of 20-25 km/h and likely to intensify. The affected area is the northern East Sea. Disaster risk level 3.

At 4:00 a.m. on October 6, the storm on the coast of Quang Ninh - Hai Phong with strong winds of level 9, gusts of level 12; moving in the West Northwest direction at a speed of about 20 km/h, entering the North of Bac Bo Gulf and gradually weakening. The affected area is the Northwestern sea area of the North East Sea, the North of Bac Bo Gulf, the coastal mainland area from Quang Ninh to Hung Yen.. Natural disaster risk level 3.

At 4:00 p.m. on October 6, the storm was in the mountainous area of the North of the North with strong winds of level 6, gusts of level 8; moving in the West Northwest direction at a speed of about 20km/h, entering the mainland and gradually weakening. The affected area is the sea area of the North Gulf of Tonkin, the coastal mainland area from Quang Ninh to Hung Yen . Natural disaster risk level 3.

At 4:00 a.m. on October 7, the storm was in the mountainous area of the West of the North with winds below level 6; moving in the West Northwest direction at a speed of 15-20 km/h.

Due to the impact of the storm, the North East Sea area has strong winds of level 8-10, the area near the storm's eye has winds of level 11-13, gusts of level 16, waves 4-6m high, the area near the storm's eye is 6-8m, the sea is very rough (extremely destructive, extremely strong waves. Sinking large tonnage ships).

From the afternoon of October 5, the sea area east of the Northern Gulf of Tonkin (including Bach Long Vi special zone) has gradually increased winds to level 6-7, then increased to level 8-9. From the evening of October 5, the northern Gulf of Tonkin area (including Bach Long Vi special zone, Van Don, Co To, Cat Hai and Hon Dau island) has gradually increased winds to level 8-9, waves 2-4m high, the area near the storm center has level 10-11, gusts to level 14, waves 3-5m high, rough seas (very dangerous for ships).

Coastal areas and islands in Quang Ninh - Hai Phong provinces will have storm surges of 0.4-0.6m. Beware of flooding in low-lying coastal areas and river mouths due to surges and big waves from the afternoon and evening of October 5.

Warning: The weather at sea and in coastal areas during the storm is extremely dangerous and unsafe for any vehicle or structure operating in the danger zone such as: cruise ships, passenger ships, transport ships, cages, rafts, aquaculture areas, dykes, embankments, coastal routes. Vehicles are at high risk of capsize, destruction, and flooding due to strong winds, big waves, and rising sea levels.

Vessels operating in the above mentioned dangerous areas are susceptible to the impact of storms, whirlwinds, strong winds and large waves.

On land: From the night of October 5, on land in coastal areas from Quang Ninh to Hung Yen, winds will gradually increase to level 6-7, near the storm center, level 8-9, gusting to level 10-11. (Winds can break tree branches, blow off roofs, causing damage to houses. It is impossible to go against the wind). Inland areas in the Northeast, winds will be strong at level 4-5, in some places at level 6, gusting to level 7-8.

From the night of October 5 to the end of the night of October 0, in the mountainous and midland areas of the North, there will be heavy rain, with average rainfall of 150-250mm, and in some places very heavy rain of over 400mm.

Warning, risk of heavy rain (>150mm/3h); Northern Delta and Thanh Hoa have moderate to heavy rain with common rainfall of 70-150mm, locally very heavy rain over 200mm.

Hanoi area is less likely to be affected by storms. It is forecasted that from early morning on October 6 to the end of October 7, there will be moderate to heavy rain, with average rainfall of 70-120mm, locally over 150mm.

Due to the influence of the wide storm circulation, it is necessary to take precautions against the risk of thunderstorms, tornadoes and strong gusts of wind both before and during the storm's landfall.

Source: https://baotintuc.vn/xa-hoi/rang-sang-ngay-610-bao-so-11-di-vao-phia-bac-vinh-bac-bo-va-suy-yeu-dan-20251004173947302.htm