Illustrative photo
Meanwhile, increase in rainfall is predicted for the Central Highlands and southern Vietnam this month as the dry season in the regions is about to end.
Rainfall from north central Thanh Hoa province to central Thua Thien-Hue province will be 15-30 percent higher than the same period of previous years.
May is the time for transition from spring to summer so that the centre warned people of extreme weather events such as whirlwinds or hailstorms.