Weather forecast for the next 24 to 48 hours
The National Center for Hydro-Meteorological Forecasting said that the Northern and North Central regions will have very heavy rain.

The Northern region will have moderate rain, heavy rain and thunderstorms, locally very heavy rain.
The North Central region will have scattered showers and thunderstorms on the night of May 22, then showers and thunderstorms in some places; from the evening and night of May 23, there will be moderate rain, heavy rain and thunderstorms, locally very heavy rain.
The Central Central region will have showers and thunderstorms in some places in the evening and at night, sunny during the day, and hot weather in some places on May 23.
The South Central region will have scattered showers and thunderstorms in some places, especially in the area from Khanh Hoa to Binh Thuan in the afternoon and evening, there will be scattered showers and thunderstorms, locally heavy rain in some places.
The Central Highlands and the South will have rain, moderate rain and scattered thunderstorms, with some places having heavy to very heavy rain. The rain will be concentrated in the afternoon and night.
Weather forecast from the night of May 24 to June 1
The National Center for Hydro-Meteorological Forecasting has made a statement on notable weather trends in some areas from the night of May 24 to June 1.

The Northern region will have scattered showers and thunderstorms in some places from the night of May 24 to May 25 and May 31; other days will have scattered showers and thunderstorms, with intermittent sunny days.
The North Central region will have moderate rain, heavy rain and thunderstorms on the night of May 24, locally very heavy rain; from May 25 to 27, there will be scattered showers and thunderstorms (rain concentrated in the late afternoon and evening). From around May 29, there will be local heat.
The Central and South Central regions will have scattered showers and thunderstorms in the evening and at night, especially in the South from May 24 to 28, there will be scattered showers and thunderstorms in the evening and at night, with some places having heavy rain; sunny during the day. From around May 29, there will be local heat.
The Central Highlands and the South from the night of June 24 to 25 will have rain, moderate rain and thunderstorms, locally heavy to very heavy rain.
From May 26 in the afternoon and evening, there will be scattered showers and thunderstorms, with some places having heavy rain. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.