According to the National Center for Hydro-Meteorological Forecasting, at 4:00 a.m. on September 23, the center of super typhoon No. 9 Ragasa was at about 19.8 degrees north latitude; 118.8 degrees east longitude, in the northeastern sea 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.
At 4:00 a.m. on September 24, the center of the storm was at about 21.1 degrees north latitude; 114.5 degrees east longitude, in the northern sea area of the northern East Sea, about 450km east of the Lusian Peninsula (China). Strong intensity level 16-17, gust above level 17.
The danger zone is north of latitude 18 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 continue to move west-northwest at a speed of 20-25km/h and gradually weaken.
At 4:00 a.m. on September 25, the center of the storm was at about 21.5 degrees north latitude; 109.6 degrees east longitude, in the mainland south of Guangzhou province (China). Strong intensity level 12, gust level 15.
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 northern sea area of the North East Sea and level 3 for the northern 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.
At 4:00 a.m. on September 26, the center was at about 20.8 degrees north latitude; 105.1 degrees east longitude, in the Northern region. Strong intensity level 6, gust level 8. The danger zone is north of latitude 18.0 degrees north latitude and west of longitude 112 degrees east longitude. Level 3 natural disaster risk for the northwestern sea area of the northern East Sea and the Gulf of Tonkin.
It is forecasted that in the next 72 to 96 hours, the tropical depression will move west-southwest, traveling about 20km per hour and weakening into a low pressure area.
Regarding the impact at sea, the sea area north of the northern East Sea will have strong winds of level 8-9, then increase to level 10-14, the area near the center of the super typhoon will have levels 15-17, gusts above level 17, waves over 10m high, and the sea will be very rough.
From September 24, the eastern sea area 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, 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.
Storm surge in coastal areas of Quang Ninh - Hai Phong provinces will have storm surge of 0.5-1m high. There is a high risk of landslides, sea dikes, destruction of aquaculture areas and boats anchored along the coast due to strong winds, rising sea levels 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. The deep inland area northeast of the Ministry has 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, with common rainfall of 100-250mm, some places over 400mm. There is a high risk of flooding in low-lying areas, flash floods on small rivers and streams and landslides on steep slopes.
Due to the influence of a wide storm 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.
