Updated from the National Center for Hydro-Meteorological Forecasting, at 4:00 a.m. on October 5, the center of the storm was at about 19.8 degrees north latitude; 112.3 degrees east longitude, in the northwestern sea of the northern East Sea, about 150 km east of Hainan Island (China), about 550 km east-southeast of Quang Ninh. The strongest wind near the storm center is level 12 (118-133 km/h), gusting to level 15. The storm is moving west-northwest at a speed of 20-25 km/h.
In the next 12 hours, the storm will maintain its strong intensity, then decrease rapidly to 3 - 4 levels
It is forecasted that in the next 12 hours, the storm will move west-northwest, at a speed of 20-25 km/h and is likely to maintain strong intensity. At 4:00 p.m. on October 5, the center of the storm was at about 20.7 degrees north latitude; 109.8 degrees east longitude, in the western area of the Lusi Peninsula (China), about 250 km east-southeast of Quang Ninh. Strong wind level 12, gust level 15.
The danger zone in the East Sea is the north of the latitude of 17.5 degrees north; east of the longitude of 108-125.5 degrees east. Level 3 natural disaster risk for the northwestern sea area of the North East Sea and the northern area of the Gulf of Tonkin.
It is forecasted that in the next 24 hours, the storm will move west-northwest, at a speed of about 20 km/h. At 4:00 a.m. on October 6, the center of the storm was at about 21.5 degrees north latitude; 108.3 degrees east longitude, on the coast of Quang Ninh - Hai Phong province. The wind intensity decreased to level 9, gusting to level 12.
The danger zone is north of latitude 18.5 degrees north; west of longitude 110 degrees east. 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 the coastal mainland area from Quang Ninh to Hung Yen.
At around dawn on October 6, storm No. 11 will make landfall in Quang Ninh.
It is forecasted that in the next 36 hours, the storm will move west-northwest at a speed of about 20 km/h and weaken into a tropical depression. At 4:00 p.m. on October 6, the center of the tropical depression was at about 22.3 degrees north latitude; 106.1 degrees east longitude, in the northern mountainous region of the North. The wind intensity decreased to level 6, gusting to level 8.
The danger zone is north of latitude 19 degrees north; west of longitude 108.5 degrees east. Level 3 natural disaster risk for the northern sea area of the Gulf of Tonkin, coastal mainland areas from Quang Ninh to Hung Yen and Lang Son province.
It is forecasted that in the next 48 hours, the tropical depression will continue to move west-northwest at a speed of about 20 km/h, gradually weakening. At 4:00 a.m. on October 7, the center of the remaining low pressure area was at about 22.8 degrees north latitude; 103.8 degrees east longitude, in the mountainous areas west of the North.
From tonight, Quang Ninh to Hung Yen will have winds of level 8-9, heavy rain in the North
Regarding the impact of the storm at sea, the northwestern sea area of the northern East Sea will have strong winds of level 8-10, the area near the storm center will have winds of level 11-13, gusts of level 15-16; waves 4-6 m high, the area near the storm center will have waves 6-8 m, the sea will be very rough (extremely strong in destructive power, extremely strong waves, which can sink large-load ships).
From the afternoon of October 5, the sea area east of the northern part of the Gulf of Tonkin (including Bach Long Vi special zone) will have winds gradually increasing to level 6-7, then increasing to level 8-9. From the evening of October 5, the northern area of the Gulf of Tonkin (including the special areas of Bach Long Vi, Van Don, Co To, Cat Hai and Hon Dau island) will have strong winds of level 8-9, waves 2-4 m high; the area near the storm's eye will have winds of level 10-11, gusts of level 14, waves 3-5 m high, the sea will be very rough, very dangerous for ships.
Storm surge in coastal areas and islands of Quang Ninh - Hai Phong has storm surge of 0.4-0.6 m. Flood warning in low-lying coastal areas, river mouths due to rising water and big waves from the afternoon and evening of October 5.
The weather at sea and on land along the coast during the storm is extremely dangerous and unsafe for any means of transport or works operating in the danger zone such as tourist boats, passenger ships, transport ships, cages, aquaculture areas, dykes, embankments, coastal roads. Vehicles are likely to overturn or be destroyed; flooded 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 gradually increase to level 6-7, near the storm center will level 8-9, gusting to level 10-11 (the wind breaks branches, blows roofs, causes damage to houses; cannot go back to the wind). The deep inland area east of the Northeast will have strong winds of level 4-5, some places will have level 6, gusting to level 7-8.
Regarding heavy rain, from the night of October 5 to the end of the night of October 7, the mountainous and midland areas of the North will have heavy rain, with common rainfall of 150-250 mm, locally very heavy rain over 400 mm. Warning of the risk of heavy rain (rainfall greater than 150 mm/3 hours).
The Northern Delta and Thanh Hoa will have moderate to heavy rain with common rainfall of 70-150 mm, locally over 200 mm.
The Hanoi area is less likely to be affected by storms. It is forecasted that from early morning of October 6 to the end of October 7, there will be moderate rain, heavy rain, common rainfall of 70-120 mm, locally over 150 mm.
