Affected by a tropical low pressure zone, which was on the northern part of Truong Sa (Spratly) Islands as of 7am August 19, the waters off the central coastal area between Danang City and Binh Thuan Province will become rough with rains, the national weather bureau said Thursday.

In the mainland, central and southern central provinces will see medium to heavy rains, some places might experience thunderstorms, said the National Hydro Meteorological Forecasting Center.
The center said residents should keep watch of tornados and strong winds during the thunderstorms.
The tropical depression will slowly move westward at a speed of 5-10 kilometers an hour in the next 24 hours, the center forecasted.