Latest update from the National Center for Hydro-Meteorological Forecasting, at 1:00 p.m. on June 11, the center of storm No. 1 was at about 16.7 degrees north latitude; 112.5 degrees east longitude in the sea east of Hoang Sa archipelago. The strongest wind near the storm center is level 8 (62 - 74km/h), gusting to level 10; moving west-northwest at a speed of 10 - 15km/h.
It is forecasted that in the next 24 hours, storm No. 1 will move west-northwest at a speed of 10-15km/h and is likely to strengthen. At 1:00 p.m. on June 12, the center of the storm is forecast to be at about 17.3 degrees north latitude; 110.2 degrees east longitude, in the sea south of Hainan Island (China).
The strongest wind near the storm center is level 9, gusting to level 11.
The danger zone extends from 15 to 18.5 degrees north latitude; from 109 to 114.5 degrees east longitude. The natural disaster risk level is determined to be level 3, affecting the western part of the northern East Sea (including Hoang Sa archipelago) and the offshore waters from Quang Tri to Quang Ngai.
It is forecasted that in the next 48 hours, the storm will move north-northeast at a speed of about 10km/h. At 1:00 p.m. on June 13, the center of the storm was at about 19.1 degrees north latitude; 109.3 degrees east longitude, in the Hainan Island area (China).
The strongest wind near the storm center is level 10, gusting to level 13. The danger zone extends from 15.5 to 20.5 degrees north latitude; from 108 to 112.5 degrees east longitude. The disaster risk level remains at level 3, continuing to affect the western part of the northern East Sea (including the western part of the Hoang Sa archipelago), the offshore waters from Quang Tri to Quang Ngai and the eastern waters of the Gulf of Tonkin.
It is forecasted that in the next 72 hours, the storm will change direction to the north-northeast at a speed of about 15km/h and begin to weaken. At 1:00 p.m. on June 14, the center of the storm was now located in southern mainland China, at about 22.4 degrees north latitude; 110.4 degrees east longitude.
The strongest wind near the storm center has decreased to level 8, gusting to level 10. The danger zone extends north of the latitude of 17.5 degrees north latitude and extends within the range of 108 to 112 degrees east longitude. The disaster risk level is still maintained at level 3, affecting the western sea area of the northern East Sea and the eastern sea area of the Gulf of Tonkin.
From the next 72 to 96 hours, the storm will move northeast, traveling about 20km per hour, and continue to weaken.
Regarding the impact of storm No. 1 at sea, the western part of the northern East Sea (including the sea area of Hoang Sa archipelago) has strong winds of level 7-8, the area near the storm's eye has level 9 - 10, gusts of level 13, waves 3 - 5m high, the area near the storm's eye has 4.0 - 6.0m, the sea is very rough.
From the night of June 11, the offshore waters from Quang Tri to Quang Ngai will have winds gradually increasing to level 6-7, near the storm center level 8 - 9, gusts of level 11, waves 3 - 5m high, very rough seas.
From June 12, the sea area east of the Gulf of Tonkin will have winds gradually increasing to level 6-7, near the storm center level 8, gusts of level 10, waves 2 - 4m high, rough seas.
Ship operating in the above-mentioned dangerous areas are likely to be affected by thunderstorms, whirlwinds, strong winds, and large waves.
On land, due to the influence of storm No. 1, from the afternoon of June 11 to June 13, in the Central Central region, there will be heavy to very heavy rain with common rainfall from 100 - 300mm, some places over 450mm; the northern Central Highlands will have moderate rain, heavy rain and thunderstorms, locally very heavy rain with common rainfall from 70 - 150mm, some places over 200mm.