According to the National Center for Hydro-Meteorological Forecasting, this afternoon (May 21), the Northern, South Central, Central Highlands and Southern regions will have local heavy rain.
Rainfall from 12pm to 3pm on May 21 was over 60mm in some places such as: Dong Giang (Binh Thuan) 69.3mm, Loc Ngai (Lam Dong) 83.8mm, Chau Duc (Ba Ria - Vung Tau) 82.6mm,...
The Northern region will have scattered showers and thunderstorms in the evening and night of May 21.
From the night of May 22 to May 23, the North is forecast to have moderate rain, heavy rain and thunderstorms, locally very heavy rain with common rainfall of 40 - 90mm, locally over 150mm.
Heavy rain in the Northern region is likely to last until around May 24 with common rainfall from 30 - 60mm, some places over 100mm. From the night of May 24, heavy rain in the Northern regions will gradually decrease.
The meteorological agency warns of the risk of local heavy rain (rainfall greater than 100mm within 3 hours).
In the North Central region in the evening and night of May 21, it is forecasted to have scattered showers and thunderstorms.
From the evening and night of May 23 to the night of May 24, the North Central region will have rain with common rainfall from 40 - 100mm, some places over 150mm.
In the Ninh Thuan - Binh Thuan, Central Highlands and Southern regions on the evening of May 21, there will be rain, moderate rain and scattered thunderstorms, locally heavy rain with rainfall from 20 - 40mm, some places over 70mm.
During this rain, the National Center for Hydro-Meteorological Forecasting warned that thunderstorms are likely to cause tornadoes, lightning, hail and strong gusts of wind. The warning level of natural disaster risk due to heavy rain is level 1. Heavy rain is likely to cause flooding in low-lying areas, urban areas, industrial parks; flash floods on small rivers and streams, landslides on steep slopes.
Regarding the hydrological situation, from the night of May 22 to May 25, on the Thao River, Lo River, and small rivers in the Northern region, Thanh Hoa, there is a possibility of a flood, with a flood amplitude of 2 - 5m on the rivers.
During this flood, flood peaks on small rivers and upstream rivers are likely to rise to alert level 1 and above alert level 1. The water level downstream of Thao and Lo rivers is below alert level 1.
There is a high risk of flooding in low-lying areas along rivers, flash floods and landslides on steep slopes in the mountainous areas of the North, from Thanh Hoa to Ha Tinh.
The warning level of natural disaster risk due to floods is level 1. Floods on rivers and streams can cause flooding in low-lying areas along rivers, affecting activities such as waterway transportation, aquaculture, agricultural production, and people's lives.
