On the afternoon of November 4, convective clouds are forming and developing in the areas of Dong Nai, Ho Chi Minh City, Long An, and Tien Giang provinces.
In the next 0-3 hours, thunderstorms will continue to develop, causing showers, accompanied by thunderstorms and lightning in the above areas, then expanding to other neighboring areas.
Rainfall is generally from 2-10mm, some places over 10mm. During thunderstorms, beware of tornadoes, hail and strong gusts of wind around level 5-7 (8-17 m/s), heavy rain causing localized flooding.
The thunderstorms are caused by the continental cold high pressure that is strengthening in our country. The low pressure trough with an axis at about 5-8 degrees North latitude is weak. Above, the subtropical high pressure with an axis across the North is strong.
Weather forecast for the next 24-48 hours, the continental cold high pressure will be strengthened to the North and North Central regions. The low pressure trough has an axis of about 4-8 degrees North latitude.
Above, the subtropical high pressure has an axis over the North Central region, gradually decreasing to the South. Over the southern seas, the Northeast wind has an average intensity.
From 72 hours, the continental high pressure continued to strengthen in the North and North Central regions, until November 9-10, gradually moving to the East and then weakening. The low pressure trough in the South weakened and gradually faded.
Above, the subtropical high pressure across the North Central region is active. From November 12, it will weaken slightly and slowly withdraw to the East, gradually lifting its axis to the North. In the South Sea, the Northeast wind will be of medium intensity.
Therefore, in the next 1-2 days, the Southern region will have light rain, some places will have moderate rain. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind. Beware of the possibility of heavy rain causing localized flooding in low-lying areas and areas with poor drainage capacity.
Regarding high tides, in the next 5 days, water levels at most stations in the downstream of the Saigon - Dong Nai River will drop rapidly. The high water level above alert level I will remain until the end of November 5.
