Risk of flash floods and landslides this afternoon and evening
According to the National Center for Hydro-Meteorological Forecasting, in the past 6 hours (from 9:00 to 15:00 on July 21), Quang Ninh province has had moderate to heavy rain. Some places have heavy rainfall such as Co To recorded 83.8mm, Quat Dong reached 56.2mm. Currently, the soil moisture model shows that many areas in the province have reached or are in a state of saturatation (over 85%).
Warning in the next 3 - 6 hours (from 3:30 p.m. on July 21), Quang Ninh province will continue to have rain, with accumulated rainfall ranging from 30 - 60mm, some places over 80mm.
Warning in the next 6 hours (from 3:30 p.m. on July 21), there is a high risk of flash floods on small rivers and streams, landslides on steep slopes in Quang Ninh province, especially in communes, wards, and special zones such as: Co To, Van Don, Dam Ha; Ba Che, Binh Lieu, Dien Xa, Dong Ngu, Hoa Street, Hai Hoa, Hai Lang, Binh Khe Ward, Cam Pha, Cua Ong, Hoanh Bo, Mong Cai 3, Mong Duong, Quang Hanh, Vang Danh, Yen Tu, Quang Ha, Quang La, Quang Tan, Tien Yen.
The meteorological agency warns that the risk of natural disasters due to flash floods, landslides, and land subsidence due to heavy rain or water flow is level 1.
Flash floods and landslides can have a very negative impact on the environment, threatening people's lives; causing local traffic congestion, affecting the movement of vehicles; civil and economic works, causing damage to production activities and socio-economic activities.
The meteorological agency recommends that local authorities pay attention to reviewing bottlenecks and vulnerable locations in the area to take preventive and response measures.
Quang Ninh is a locality forecast to be strongly affected by storm No. 3
Regarding the development of storm No. 3, at 1:00 p.m. on July 21, the center of the storm was at about 21.1 degrees north latitude; 109.1 degrees east longitude, about 120 km from Quang Ninh, 260 km east of Hai Phong, about 280 km east of Hung Yen, about 310 km east-northeast of Ninh Binh. The strongest wind near the storm center is level 9-10 (75-102 km/h), gusting to level 12. The storm is moving west-southwest at a speed of 10-15 km/h.
Regarding the impact of the storm at sea, the northwestern sea area of the northern East Sea will have strong winds of level 7-8, gusts of level 10, waves 3-5 m high, and rough seas.
The northern sea area of the Gulf of Tonkin includes the special areas of Bach Long Vi, Co To, Van Don, Cat Hai, Hon Dau island with strong winds of level 6-7, then increasing to level 8-9, the area near the storm center has level 10-11, gusting to level 14. Waves 2-4 m high, near the center of the storm 4-6 m, the sea is rough.
The southern Gulf of Tonkin sea area including Hon Ngu island 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.
Coastal areas from Hung Yen to Quang Ninh have storm surge water from 0.5-1.0 m. The water level in Ba Lat (Hung Yen) is 2.4-2 1.6 m high, in Hon Dau (Hai Phong) is 3.9-4.3 m high, in Cua Ong (Quang Ninh) is 4.6-5.0 m high and in Tra Co (Quang Ninh) is 3.6-4.0 m high. There is a high risk of flooding in coastal areas and river mouths on the afternoon of July 22.
The meteorological agency warns that the weather at sea and in coastal mainland areas during the storm is extremely dangerous, unsafe for any vehicles or works operating in the dangerous area such as tourist boats, passenger ships, transport ships, cages, aquaculture areas, dykes, embankments, coastal roads. Vehicles are likely to overturn, be destroyed, or be flooded due to strong winds, thunderstorms, whirlwinds, large waves, and rising sea levels.
On land, from the evening and night of July 21, coastal areas from Quang Ninh to Nghe An will have winds gradually increasing to level 7-9, near the storm center level 10-11, gusting to level 14. Deep inland areas of provinces and cities such as Hai Phong, Hung Yen, Ninh Binh and Thanh Hoa have strong winds of level 6, gusting to level 7-8. Winds of level 10-11 can cause trees, electric poles to fall, and roofs to fall, causing very heavy damage.
Regarding heavy rain, from July 21 to July 23, the Northeast region, the Northern Delta, Thanh Hoa and Nghe An will have heavy to very heavy rain and thunderstorms with common rainfall of 200-350 mm, some places over 600 mm. Other places in the Northern region and Ha Tinh will have moderate rain, heavy rain, some places will have very heavy rain and thunderstorms with common rainfall of 100-200 mm, some places over 300 mm.
Warning of the risk of heavy rain over 150 mm in 3 hours. Heavy rainfall in a short period of time can cause flash floods, landslides in mountainous areas, and flooding in low-lying areas.
