The tropical depression in the East Vietnam Sea became stronger on Friday morning, with torrential rains of up to 800 millimeters forecast to batter central provinces over the next few days.
The tropical depression was located about 310 kilometers east of south-central Binh Dinh Province as of 6:00 am on Friday, the National Center for Hydro-meteorological Forecasting reported.
The wind speed reached 50-60km per hour, and gusts up to 88km an hour.
The depression is expected to travel northwest over the next 12 hours and develop into a storm.
In the next 12-24 hours, the storm will continue heading northwest and could possibly weaken back into a tropical depression.
As of Saturday morning, the low-pressure system will make landfall in south-central provinces before further downgrading.
The tropical depression is expected to bring torrential rain to localities in north-central, central, and south-central Vietnam through the end of Sunday.
The localities between north-central Quang Binh Province and south-central Khanh Hoa Province, as well as in the Central Highlands, will see an average rainfall of 200-500 millimeters.
Between north-central Quang Tri Province and central Quang Ngai Province, the rain volume will be 400-600 millimeters, and may reach up to 800 millimeters in some areas.
The downpours will be accompanied by whirlwinds, lightning, and strong gusts.
Powerful winds will also be recorded in the localities from central Thua Thien-Hue Province to south-central Phu Yen Province.