Forecast by 10:00 on October 6, storm No. 11 will gradually weaken in the Vietnam

Photo caption — Location and path of storm No. 11. Photo: KTTV

It is forecasted that the storm will continue to strengthen and increase in intensity. It is forecasted that by 10am on October 6, the storm will move west-northwest at a speed of about 20km/h and gradually weaken; on the Vietnam-China border area.

Specifically, at 11:00 a.m. on October 4, the center of the storm was at about 18.2 degrees North latitude; 115.7 degrees East longitude, about 390 km East Northeast of Hoang Sa special zone. The strongest wind near the center of the storm was level 11 (103-117 km/h), gusting to level 14. Moving in the West Northwest direction, speed about 25 km/h.

Forecast, by 10am on October 5, the storm will be in the sea east of Leizhou Peninsula (China) and moving west-northwest at a speed of 20-25 km/h and is likely to strengthen. Storm intensity level 13, gust level 16. Disaster risk level 3 in the North East Sea area.

By 10:00 on October 6, the storm was moving in the West-Northwest direction at a speed of about 20 km/h and gradually weakening; on the Vietnam - China border area. Intensity level 8, gust level 10. Natural disaster risk level 3 in the Northwest area of the North East Sea, the sea area of the North Gulf of Tonkin and the coastal mainland area from Quang Ninh to Hung Yen .

By 10pm on October 6, the storm was moving west-northwest at a speed of 15-20 km/h; in the northern mountainous region of the North. Intensity below level 6.

Due to the influence of the storm, in the North East Sea area there are strong winds of level 8-10, near the eye of the storm level 11-13, gusts of level 16, waves 40-6m high, near the eye of the storm 6-8m, violently rough seas (extremely destructive, extremely strong waves, can sink 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 winds gradually increasing to level 6-7, then increasing 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 winds gradually increasing to level 8-9, waves 2-4m high, the area near the storm center has levels 10-11, gusts of level 14, waves 3-5m high, rough seas (very dangerous for ships).

Coastal areas and islands in Quang Ninh - Hai Phong provinces are likely to experience storm surges of 0.4 - 0.6 m. Flooding should be prevented in low-lying coastal areas and river mouths due to surges combined with large waves from the afternoon and evening of October 5.

The National Center for Hydro-Meteorological Forecasting warns that the weather during the storm is extremely dangerous, unsafe for any vehicle or structure operating in the danger zone such as: cruise ships, passenger ships, transport ships, rafts, aquaculture areas, dykes, embankments, coastal routes. Vehicles are highly likely to capsize and be destroyed; coastal areas are at risk of flooding due to strong winds, big waves and rising sea levels.

On land, from the night of October 5, coastal areas from Quang Ninh to Hung Yen will see winds gradually increase to level 6-7, and near the storm's eye, level 8-9 (winds can break tree branches, blow off roofs, damage houses and hinder movement). Inland areas in the Northeast will see strong winds of level 4-5, in some places level 6, gusting to level 7-8.

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 common rainfall of 150-250mm, and locally over 400mm. Warning of the risk of heavy rain (over 150mm/3 hours).

In the Northern Delta and Thanh Hoa region, there is moderate to heavy rain, with common rainfall of 70-150mm, and locally over 200mm.

The Hanoi area is unlikely to be directly affected by the storm. It is forecasted that from early morning of October 6 to the end of October 7, there will be moderate to heavy rain, with average rainfall of 70-120mm, and in some places 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, the National Center for Hydro-Meteorological Forecasting recommends.