Latest update from the National Center for Hydro-Meteorological Forecasting, due to the influence of storm No. 1's circulation, Bach Long Vi special zone has had strong winds of level 9, gusts of level 10; Co To (Quang Ninh) has strong winds of level 8, gusts of level 9, sea waves 2.25m high; Cua Ong (Quang Ninh) has strong winds of level 8, gusts of level 9; Mong Cai (Quang Ninh) has strong gusts of level 10; Quang Ha (Quang Ninh) has strong gusts of level 8.
At 5 pm on July 4, the center of storm No. 1 was located at about 21.1 degrees North latitude; 107.8 degrees East longitude, over the coastal area of Quang Ninh. The strongest wind near the center of the storm was strong at level 9, gusting at level 11.
Forecast for the next 12 hours, the storm will move northward at a speed of about 10 - 15 km/h, gradually weakening into a tropical depression. By 4 am on July 5, the center of the tropical depression will be located at about 22.2 degrees North latitude - 107.9 degrees East longitude; over the southern area of Guangxi province (China). Intensity level 7, gusts level 9.
Forecast for the next 24 hours, the tropical depression will continue to move northward at a speed of about 10-15 km/h, gradually weakening into a low pressure area. By 4:00 PM on July 5th, the center of the low pressure area will be located at about 23.6 degrees North latitude - 108.2 degrees East longitude; over the southern area of Guangxi province (China). Intensity will decrease to below level 6.
Regarding heavy rain on land, the rain time in the Northeast region will be concentrated from tonight to tomorrow morning, July 5.
From the evening of July 4th to the end of July 5th, the Northeast region will have moderate to heavy rain, common rainfall of 50-120mm, locally over 150mm; especially the Northeast region will have heavy to very heavy rain of 150-250mm, locally over 400mm.
Heavy rain may cause flooding in urban areas, industrial parks and low-lying areas; increasing the risk of floods on small rivers and streams, flash floods and landslides in mountainous areas.
The mainland coastal areas of Quang Ninh, Hai Phong and Hung Yen provinces/cities will have strong winds from now until about 9 pm. Risk of wind gradually strengthening to level 6-7, near the storm center level 8, gusts level 10-11; sea waves 2-3.5m high; storm surge of about 0.2-0.4m.
Strong winds can blow off roofs, damage temporary structures, break down green trees, billboards; affect electrical systems, communication and traffic. Large waves combined with rising water can cause localized flooding in river mouths, tidal flats and low-lying areas; affect dykes, seawalls and coastal works.
At sea, it is forecast that the Gulf of Tonkin (including Bach Long Vi, Van Don, Co To, Cat Hai special zones and Hon Dau island) will have strong winds of level 6-7, near the storm center level 8-9, gusts of level 11; sea waves are 2-4.5m high; very rough seas.
Dangerous weather conditions can cause capsizing, sinking or damage to fishing boats, transport boats, tourist boats and vehicles operating at sea; aquaculture cages, boat anchorage areas and coastal works are at risk of being damaged. Seafood exploitation, transportation and tourism activities at sea are likely to be interrupted.
