Forecast for the afternoon of October 6, the storm will be in the northern mountainous region and weaken into a low pressure area.

Commenting on the development of storm No. 11, Dr. Hoang Phuc Lam, Deputy Director of the National Center for Hydro-Meteorological Forecasting, said that the storm will maintain its direction of movement and decrease in intensity. It is forecasted that by the afternoon of October 6, the storm will be in the northern mountainous region and weaken into a low-pressure area.

The movement of storm No. 11 at 1 p.m. on October 5. Photo: VNA

At 4:00 p.m. on October 5, the center of the storm was at about 20.9 degrees North latitude; 110.0 degrees East longitude, on the Leizhou peninsula (China), about 230km East Southeast of Mong Cai ( Quang Ninh ). 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 20-25km/h.

Forecast, by 4am on October 6, the storm on the mainland of Guangxi (China) with strong winds of level 8-9, gusts of level 11; moving in the West Northwest direction at a speed of 20-25 km/h. The affected area is the northwest sea area of ​​the North East Sea, the North Gulf of Tonkin, the coastal mainland area from Quang Ninh to Hung Yen, Lang Son province, the East of Cao Bang province, level 3 natural disaster risk.

By 4 p.m. on October 6, the storm was in the northern mountainous region with winds below level 6 and weakened into a low pressure area. The affected areas are the northern Gulf of Tonkin, the coastal mainland from Quang Ninh to Hung Yen , Lang Son province, with a level 3 disaster risk. The area of ​​Lang Son province and the east of Cao Bang province has a level 3 disaster risk.

Due to the influence of the storm, the Northwestern sea area of ​​the North East Sea has strong winds of level 8-9, near the eye of the storm level 10-11, gusts of level 14, waves 4-6m high, near the eye of the storm 5-7m, violent seas with extremely large destructive power, extremely strong waves, sinking large tonnage ships.

In the Northern Gulf of Tonkin (including Bach Long Vy, Van Don, Co To, Cat Hai and Hon Dau islands), strong winds of level 6-7, then increasing to level 8-9, near the storm center, level 10-12, gusting to level 15, waves 2-4m high, near the storm center, 3-5m, rough seas (very dangerous for ships).

Coastal areas and islands in Quang Ninh-Hai Phong provinces 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.

On land: From the night of October 5 to noon on October 6, on land in coastal areas from Quang Ninh to Hung Yen and Lang Son province, winds gradually increased to level 6-7, near the storm center level 8-9, gusting to level 11-12, breaking tree branches, blowing off roofs, causing damage to houses, making it impossible to go against the wind. Inland areas in the Northeast, winds were strong at level 4-5, in some places level 6, gusting to level 7-8.

Communes/wards in the northeastern region of Quang Ninh province are likely to have strong winds of level 8-9, gusting to level 11-12; the remaining communes/wards of Quang Ninh province and coastal areas of Hai Phong city are likely to have strong winds of level 7-8, gusting to level 10; the coastal communes/wards of Hung Yen province and the northern border communes of Lang Son province are likely to have strong winds of level 6-7, gusting to level 9; the northeastern region of Bac Ninh province (formerly Bac Giang province) and the eastern region of Cao Bang province are likely to have strong winds of level 6, gusting to level 8.

From the night of October 5 to the end of the night of October 7, 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, need to be on guard against thunderstorms, whirlwinds and strong gusts. It is forecasted that from early morning on October 6 to the end of October 7, there will be moderate to heavy rain, with common rainfall of 70-120mm, locally over 150mm.

Due to the influence of the wide storm circulation, it is necessary to guard 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/du-bao-chieu-610-bao-tren-khu-vuc-vung-nui-phia-bac-va-suy-yeu-thanh-vung-ap-thap-20251005175247463.htm