As of 4 p.m. Tuesday, the storm's maximum wind speed was 102 kph, moving west-northwest at 15 kph, according to the National Center for Hydro-Meteorological Forecasting.
By 1 p.m. on Wednesday, Yagi is expected to be about 730 km east of China’s Hainan Island, with wind speeds reaching 89-117 kph, continuing its west-northwest trajectory at 10 kph.
By 1 p.m. on Thursday, the storm will be approximately 400 km from Hainan Island, with winds reaching 149 kph, maintaining its west-northwest movement at 10-15 kph.
By 1 p.m. on Friday, Yagi is projected to be in the waters east of Hainan Island, with wind speeds of 166 kph, continuing to move west-northwest at 10-15 kph.
Due to Yagi's influence, the northeastern part of the East Sea is expected to experience strong winds and waves rising to three to five meters starting Tuesday.
The Japan Meteorological Agency has reported that the storm's current maximum wind speed is 90 kph, predicting it will double to 180 kph before reaching Hainan Island.
The Hong Kong Observatory forecasts that Yagi will pass through the northern area of Hainan Island with winds reaching up to 175 kph.
Both agencies suggest that the storm’s intensity will not significantly decrease upon entering the Gulf of Tonkin.
Yagi is highly likely to affect the sea and mainland of the northern and north-central regions, according to an urgent directive issued by Prime Minister Pham Minh Chinh on Tuesday.
The PM advised coastal provinces to consider closing beaches based on the situation. On land, local authorities should consider the evacuation of residents from areas at high risk of flooding and landslides.
Mountainous provinces and cities have been instructed to relocate people from dangerous areas, ensure the safety of reservoirs and traffic routes, and prepare rescue vehicles for deployment if necessary.
The Ministries of Agriculture and Rural Development, Natural Resources and Environment, National Defense, Public Security, Transport, and Industry and Trade are all tasked with implementing response measures.
This is the third tropical storm to hit the East Sea this year. Storm Prapiron made landfall in Quang Ninh Province on July 23, bringing heavy rains to much of the northern region and resulting in 14 fatalities.
