According to the National Center for Hydro-Meteorological Forecasting, last night and early this morning (May 17), the North, Thanh Hoa and Nghe An had scattered showers and thunderstorms, with some places having heavy to very heavy rain.
Rainfall from 7pm on May 16 to 8am on May 17 was over 70mm in some places such as Van Mai (Hoa Binh) 92mm, Bach Ngoc (Ha Giang) 73.2mm, Yen Nhuan (Bac Kan) 72.8mm, Kim Anh (Hanoi) 86mm, Lang Chanh (Thanh Hoa) 83.8mm...
On May 17, the South Central region, the Southwest region and in the evening and night of May 17 in Nghe An, there will be scattered showers and thunderstorms, locally heavy rain with rainfall in some places over 50mm.
From the evening of May 17 to the night of May 18, the Northern region and Thanh Hoa will have moderate rain, heavy rain and thunderstorms, locally very heavy rain. The mountainous and midland areas of the North will have common rainfall from 40 - 90mm, some places over 150mm.
Son La, Hoa Binh, the Northern Delta and Thanh Hoa areas will have common rainfall of 30 - 60mm, some places over 80mm.
The meteorological agency warns of the risk of local heavy rain (rainfall greater than 80mm within 3 hours).
From May 19, heavy rain in the Northern region and Thanh Hoa will gradually decrease.
The National Center for Hydro-Meteorological Forecasting warns that the natural disaster risk level due to heavy rain is level 1. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Heavy rain is likely to cause flooding in low-lying areas, urban and industrial areas; flash floods on small rivers and streams, landslides on steep slopes.
