Latest update from the National Center for Hydro-Meteorological Forecasting, at 7:00 a.m. on July 20, the center of storm No. 3 Wipha was at about 21.7 degrees north latitude; 114.8 degrees east longitude, in the northern sea area of the North East Sea, about 705 km east of Quang Ninh - Hai Phong.
The strongest wind near the storm center is level 11 (103-117 km/h), gusting to level 14. The storm is moving west-northwest at a speed of about 20-25 km/h.
It is forecasted that in the next 24 hours, the storm will continue to move mainly west at a speed of about 20-25 km/h. At 7:00 a.m. on July 21, the center of the storm was at about 21.1 degrees north latitude; 109.8 degrees east longitude, on the mainland north of the Lusian Peninsula (China). The strongest wind near the storm center is level 11, gusting to level 14.
The dangerous area at sea is north of 20 degrees north latitude; longitude from 108 degrees east longitude to 117 degrees east longitude. The natural disaster risk level is level 3 for the northern sea area of the North East Sea, east of the northern Gulf of Tonkin.
It is forecasted that in the next 48 hours, the storm will move west-southwest at a speed of about 15 km/h. At 7:00 a.m. on July 22, the center of the storm was at about 20.5 degrees north latitude; 107.1 degrees east longitude, in the coastal area of Quang Ninh - Ninh Binh. The strongest wind near the storm center is level 10-11, gusting to level 14.
The danger zone is identified as the north of the latitude of 19.5 degrees north; the west of the longitude of 112.5 degrees east. Level 3 natural disaster risk for the northwestern sea area of the northern East Sea, the Gulf of Tonkin sea area.
It is forecasted that in the next 72 hours, the storm will continue to move west-southwest at a speed of about 10 km/h and gradually weaken into a low pressure area.
At 7:00 a.m. on July 23, the center of the low pressure area was at about 20.1 degrees north latitude; 104.7 degrees east longitude, on the mainland of upper Laos. Wind power below level 6. The dangerous area at sea is north of latitude 19 degrees north; west of longitude 109.5 degrees east. Level 3 natural disaster risk for the Gulf of Tonkin sea area, coastal waters and mainland provinces from Quang Ninh to Thanh Hoa.
Regarding the impact of the storm at sea, the sea area north of the northern East Sea will have strong winds of level 8-10, the area near the storm's eye will have winds of level 11-12, gusting to level 15. Waves are 5-7 m high, the sea is rough. From the night of July 20, the northern sea area of the Gulf of Tonkin (including the areas of Bach Long Vi, Co To, Cat Hai) will have winds gradually increasing to level 6-7, then increasing to level 8-9, the area near the storm's eye will have level 10-11, gusting to level 14. Waves 2-4 m high, near the center 3-5 m, rough seas.
From July 21, the southern Gulf of Tonkin will have winds gradually increasing to level 6-7, near the storm center level 8-9, gusting to level 11. Waves are 2-4 m high, the sea is very rough. Ship operating in the above dangerous areas are likely to be affected by thunderstorms, whirlwinds, strong winds, and large waves.
The storm-related water level in the coastal areas of Hai Phong - Quang Ninh is forecast to be 0.5-1 m high. The water level in Hon Dau (Hai Phong) is 3.8-4.1 m high, at Cua Ong (Quang Ninh) is 4.8-5.2 m high. There is a high risk of flooding in low-lying areas in coastal areas and river mouths at noon and the afternoon of July 22.
On land, from the evening and night of July 21, the mainland areas of the provinces from Quang Ninh to Thanh Hoa will have winds gradually increasing to level 7-9, gusting to level 10-11. The deeper inland areas will have strong winds of level 6-7, gusting to level 8-9. The area near the storm center has strong winds of level 10-11, gusting to level 14.
Regarding heavy rain, from July 21 to July 23, in the northern and north central regions, there is a possibility of a widespread heavy rain with common rainfall of 100-200 mm, locally over 300 mm. In particular, the northeastern region, the northern plains, Thanh Hoa and Nghe An will have heavy to very heavy rain with common rainfall of 200-350 mm, locally over 600 mm. Warning of the risk of heavy rain over 150 mm in 3 hours.
