The National Centre for Meteorological Forecasting reported at 10.00am on July 23 the depression was heading close to the coast of Quang Ninh province, northern Vietnam, packing winds of 46kph.
In the next 24 - 48 hours, it is forecast to travel south-west at a speed of 10km and move far away from the mainland.
However, the depression which was downgraded from Cempaka storm will cause rough seas and bring torrential rain to coastal provinces from Quang Ninh to Ha Tinh.
About 150mm or even 300mm of rainfall will be recorded in northern and central localities, especially in Thanh Hoa, Nghe An and Ha Tinh.
Torrential rain is likely to trigger water levels in major river systems in the regions to rise quickly.
Meteorologists have not ruled out the possibility of landslides and floods to occur in mountainous localities such as Son La, Dien Bien, Thanh Hoa, Nghe An, and Quang Tri.