According to the forecast from the Hydrometeorological Center, the North is currently under the influence of the southwest edge of the continental high pressure blade weakening, from tomorrow it will be affected by the low pressure trough set through the area between the Southern Delta and the Southern Delta. North and North Central; only the North is affected by wind convergence above 5000m, which gradually increases; pressure decreases, humidity increases.
The South is influenced by a low pressure trough with an axis at about 15-18 degrees north latitude, lifting the axis to the north and fading away, especially the Central Highlands and the South combined with the southwest wind field with weak to moderate strength; little change in pressure and humidity.
Weather forecast for the next 24 to 48 hours, the North and North Central regions will have showers and scattered thunderstorms, with moderate to heavy rain locally; Particularly, the Northern mountainous region has moderate rain, heavy rain, and very heavy rain in some places. From tomorrow night, May 21, there will be moderate rain, heavy rain, very heavy rain and scattered thunderstorms.
The Central and South Central regions have showers and thunderstorms in some places; In the evening there are scattered showers and thunderstorms. Central Highlands and the South: In the afternoon and evening, there are showers and scattered thunderstorms, with heavy to very heavy rain locally.
Assessing the weather from the night of May 22 to May 30, the low pressure trough with the axis through the Northern region is weakly compressed; then from about 24-25/5, it tends to raise the axis gradually to the north. The southwest wind in the southern region continues to strengthen gradually; From about day 24, the activity gradually weakened.
At high altitude, the wind convergence area up to 5000m maintains and operates strongly in the North and North Central regions until about May 24.
From the above weather trends, warn the North and North Central regions from the night of May 22-24, with moderate rain, heavy rain, very heavy rain and scattered thunderstorms. From May 25-28, there will be scattered showers and thunderstorms, with moderate rain and heavy rain locally. From May 29, the rain tends to decrease gradually.
Central Highlands and South: In the afternoon and evening, there are scattered showers and thunderstorms, in the South there are moderate rain, heavy rain; Particularly on May 23 in the afternoon and evening, there were showers and scattered thunderstorms, with heavy to very heavy rain locally.
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