On the afternoon of May 25, through monitoring on satellite cloud images, weather radar images, and lightning positioning, thunderstorms are developing, causing showers and thunderstorms in Ho Chi Minh City and the Southern provinces.
In the next 0-3 hours, thunderstorms will continue to develop and cause showers with thunderstorms and lightning in the above areas, then thunderstorms tend to expand and spread to other neighboring areas.
Rainfall is generally from 15-50 mm, in some places over 50 mm. During thunderstorms, beware of tornadoes, lightning, hail, strong gusts of wind of level 5-8 (8-21 m/s), heavy rain causing local flooding.
Weather forecast for the next 24-48 hours, the continental high pressure will strengthen and weaken and gradually move to the East. The low pressure trough with an axis of 6-9 degrees North latitude is gradually weakening.
Above, the subtropical high pressure tends to gradually encroach to the West and then have stable intensity.
Weather forecast for the next 3 days, the continental high pressure will weaken and move to the East. From around May 27-28, there is a possibility of forming a low pressure trough with an axis at about 25-28 degrees North latitude connecting to the low pressure area in the West, weakly compressed by the continental high pressure in the North and gradually increasing.
From about May 30-31, the low pressure area in the West tends to expand again to the Southeast. The low pressure trough in the South will gradually fade from around May 28.
The southwest wind is likely to return to operation from around May 28. Above, the subtropical high pressure will be stable, about the last 2-3 days will weaken and gradually withdraw to the East.
Therefore, the weather in the South on May 25 will have showers in many places, scattered moderate rain and thunderstorms, some places will have heavy rain. From May 26, the rain will decrease and there will only be scattered showers in the afternoon and evening.
