The rainfall is expected to reach at 100mm to 200mm.
From August 29 to September 1, the flooding will be able to appear on the system of Hong and Thai Binh rivers in the upper stream at 2 to 4m and downstream at 1 to 2m.
The flooding will peak at warning level one on the Da, Thao, Lo and Hoang Long rivers.
The possibility of landslides and flash floods will occur in the northern mountainous region including Lai Chau, Dien Bien, Son La, Hoa Binh, Lao Cai, Yen Bai, Phu Tho, Ha Giang, Cao Bang, Bac Kan and Lang Son.