Localities such as Lang Son, Cao Bang, Lao Cai, Yen Bai, Phu Tho, Bac Giang, Bac Kan, Thai Nguyen and Hoa Binh are likely to experience flooding as river water levels are rising rapidly.
The water level in Thao river in Yen Bai province rose to 33.69 m, or 1.69m higher than the its third warning level while Luc Nam's water level increased to 6.7 m, or 0.4 m higher than its third warning level.
It is forecast that these localities will expect heavy rain of 100-200mm, even 350mm in some areas on September 9 and 10.
Yagi, the third storm to hit Viet Nam this year, has left 26 people dead and missing and 247 others injured.
This typhoon, the most powerful in the East Sea over the last decades, has caused devastating consequences in Quang Ninh, Hai Phong and Hai Duong.
According to Decision No. 18/2021/QD-TTg of the Prime Minister, the natural disaster risks are classified into five levels depending on severity and scope of the consequences of national disaster.
Level 1: marked by blue color indicates low risk
Level 2: marked by light yellow color, indicating medium risk
Level 3: markred by organge color, indicating high risk
Level 4: marked by red color, indicating extremely high risk
Level 5: Marked by purple colour, indicating disaster./.