Storm No. 11 strengthens, gusts to level 15, likely to strengthen further

According to the National Center for Hydro-Meteorological Forecasting, at 3:00 p.m. on October 4, the center of the storm was located at about 18.5 degrees north latitude, 114.9 degrees east longitude, about 310km northeast of Hoang Sa special zone.

Location of storm No. 11 at 3:00 p.m. on October 4. (Photo: Zoom Earth)

Strongest wind area near the eye of the storm level 12 (118-133km/h), level 15 jerks.

Forecast in the next 3 hours, the storm moves west northwest, speed about 25km/hour.

Storm forecast for the next 24 to 60 hours:

Arrive At 1:00 p.m. tomorrow (October 5), the storm will move west-northwest at a speed of 20-25 km/hour and is likely to strengthen. The center of the storm will be at approximately 20.4 degrees north latitude and 110.3 degrees east longitude, in the sea east of Leizhou Peninsula (China).

The storm intensity is level 12-13, gusting to level 16. The dangerous area is north of latitude 16.5 degrees North and from longitude 109.0 to 118.0 degrees East. The natural disaster risk level is level 3, the affected area is the northern East Sea.

At 1:00 a.m. on October 6, the storm continued to move west-northwest at a speed of about 20km/h, entering the northern area of the Gulf of Tonkin and gradually weakening. The center of the storm was located at about 21.2 degrees north latitude, 108.5 degrees east longitude, in the sea area of Quang Ninh - Hai Phong . The storm intensity was level 9-10, gusting to level 13. The dangerous area was north of latitude 18 degrees north and east of longitude 113 degrees east.

Level 3 natural disaster risk affects the northwestern sea area of the northern East Sea, the northern sea area of the Gulf of Tonkin and the coastal mainland area from Quang Ninh to Hung Yen .

At 1 p.m. on October 6, the storm moved west-northwest at a speed of about 20 km/h, entered the mainland and gradually weakened. The center of the storm was located at about 22.1 degrees north latitude, 106.5 degrees east longitude, on the Vietnam-China border area. The storm intensity was level 7, gusting to level 9. The dangerous area was north of latitude 19.0 degrees north and east of longitude 112.0 degrees east. The natural disaster risk level was level 3, affecting the northern sea area of the Gulf of Tonkin and the coastal mainland area from Quang Ninh to Hung Yen.

At 1am on October 7, the storm continued to move west-northwest at a speed of 15-20km/hour, entering the western mountainous region of the North. At this time, the wind intensity decreased to below level 6.

Strong winds, big waves, rising water

At sea, the northern East Sea has strong winds of level 8-10, the area near the storm's eye has strong 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, the destructive power is extremely large, can sink even 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 strong winds of level 6-7, then increasing to level 8-9. From the evening of October 5, the northern Gulf of Tonkin (including Bach Long Vi, Van Don, Co To, Cat Hai and Hon Dau island) has strong winds of level 8-9, waves 2-4m high; the area near the storm center has strong winds of level 10-11, gusts of level 14, waves 3-5m high; the sea is very rough, extremely dangerous for ships.

Rising water and coastal flooding

Coastal areas and islands in Quang Ninh-Hai Phong have storm surges of 0.4-0.6m. There is a risk of flooding in low-lying coastal areas and river mouths from the afternoon to the evening of October 5.

Weather warnings at sea and in coastal areas during the storm are extremely dangerous, unsafe for any vehicle or structure in the danger zone, including cruise ships, passenger ships, transport ships, cages, aquaculture areas, dykes and coastal routes. Vehicles are highly likely to capsize and be destroyed; at the same time, there is a high risk of flooding due to strong winds, large 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 increasing to level 6-7, and near the storm's eye, winds will reach level 8-9, gusting to level 10-11. Winds can break tree branches, blow off roofs, and cause damage to buildings and houses. Inland areas in the Northeast will see strong winds of level 4-5, in some places level 6, gusting to level 7-8.

Heavy rain

From the night of October 5 to the end of the night of October 7, mountainous and midland areas of the North will have heavy rain, with average rainfall of 150-250mm, and locally over 400mm. There is a risk of heavy rain with an intensity of over 150mm in 3 hours.

The Northern Delta and Thanh Hoa regions have moderate to heavy rain with common rainfall of 70-150mm, locally over 200mm.

The Hanoi area is unlikely to be directly affected by the storm. However, 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, and 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://baolangson.vn/bao-so-11-tang-cap-giat-cap-15-co-kha-nang-manh-them-5060860.html