According to the National Center for Hydro-Meteorological Forecasting, at 7:00 a.m. on September 23, the center of super typhoon No. 9 was at about 19.9 degrees north latitude; 118.3 degrees east longitude, in the northeastern sea area of the northern East Sea.
The strongest wind near the center of the super typhoon is level 17 (202-221km/h), gusting over level 17. The super typhoon is moving west-northwest at a speed of about 20km/h.
It is forecasted that in the next 24 hours, the super typhoon will move west-northwest at a speed of 20-25km/h and gradually weaken. At 7:00 a.m. on September 24, the center of the storm was at about 21.3 degrees north latitude; 114.0 degrees east longitude, in the northern sea area of the northern East Sea, about 400km east of the Lusian Peninsula (China). Strong intensity level 15-16, gust above level 17.
The danger zone is north of latitude 18.0 degrees north latitude and east of longitude 111.5 degrees east longitude. Level 4 natural disaster risk for the northern sea area of the northern East Sea.
It is forecasted that in the next 48 hours, the storm will move west at a speed of 20-25km/h and continue to weaken.
At 7:00 a.m. on September 25, the center of the storm was at about 21.5 degrees north latitude; 109.1 degrees east longitude, on the mainland south of Guangzhou (China), about 180km east of Guangning. Strong intensity level 11-12, gust level 14.
The danger zone is north of latitude 18.5 degrees north latitude and within longitude 107-117 degrees east longitude. The natural disaster risk level is level 4 for the northwestern sea area of the northern East Sea and level 3 for the northern area of the Gulf of Tonkin.
It is forecasted that in the next 72 hours, the storm will move west-southwest at a speed of 20-25km/h and weaken into a tropical depression, then a low pressure area.
At 7:00 a.m. on September 26, the center was at about 20.7 degrees north latitude; 104.6 degrees east longitude, in the Upper Laos area. Intensity below level 6.
The danger zone is north of latitude 18 degrees north and west of longitude 112 degrees east. Level 3 natural disaster risk for the northwestern sea area of the northern East Sea and the Gulf of Tonkin.
Regarding the impact of the storm at sea, the sea area north of the northern East Sea will have strong winds of level 10-14, the area near the center of the super typhoon will have winds of level 15-17, gusts above level 17, waves above 10m high, and rough seas. From September 24, the sea area east of the Gulf of Tonkin (including Bach Long Vy island district) will have winds gradually increasing to level 6-7, gusting to level 9.
From the evening and night of September 24, the Gulf of Tonkin (including Bach Long Vy, Van Don, Co To, Cat Hai and Hon Dau island) will gradually increase to level 8-9, with waves 2-4m high; the area near the storm's eye will have level 10-12, gusts of level 14, waves 4-6m high, and rough seas.
The coastal areas of Quang Ninh - Hai Phong provinces have storm surges of 0.5-1m high, high risk of landslides, sea dykes, destruction of aquaculture areas, boats anchored along the coast due to strong winds, rising sea water and big waves.
On land, from early morning on September 25, coastal areas from Quang Ninh to Thanh Hoa will have winds gradually increasing to level 6-7, then increasing to level 8, near the storm center level 9-10, gusting to level 12; deep in the northeastern mainland of the Ministry will have strong winds of level 6-7, gusting to level 8-9.
Regarding heavy rain, from the night of September 24 to September 26, the northern regions, Thanh Hoa and Nghe An will have heavy to very heavy rain, common rainfall of 100-250mm, locally over 400mm, high risk of flooding in low-lying areas, flash floods on small rivers and streams and landslides on steep slopes. Due to the wide influence of the storm's circulation, it is necessary to be on guard against the risk of thunderstorms, tornadoes and strong gusts of wind both before and during the storm's landfall.
