In the afternoon of July 8, monitoring satellite cloud images, weather radar and lightning positioning showed that convective cloud areas are developing strongly, causing showers with thunderstorms and lightning in many wards and communes in Ho Chi Minh City.
In the next few hours, convective clouds will continue to develop, maintain showers and thunderstorms in the above areas, and are likely to spread to neighboring localities. Common rainfall is from 5-20 mm, locally over 30 mm.
During thunderstorms, people need to be wary of tornadoes, lightning, hail and strong gusts of wind at level 6-7 (39-61 km/h). Heavy rain in a short time can cause localized flooding in low-lying areas.
Regarding weather patterns, the Southwest monsoon is operating with moderate intensity, combined with a high-altitude wind convergence zone, which is the cause of thunderstorms.
In the next 24-48 hours, the hot low pressure area in the West will continue to develop and expand to the Southeast, forming a low pressure trough through the North, combined with upper-level wind convergence. In the South, the Southwest monsoon maintains medium intensity, the subtropical high pressure with its axis through the South East Sea is operating stably, while the upper-level wind convergence is still weak.
From 3-10 days, the low pressure trough through the Northern region will continue to be maintained and tend to be more active, forming a low pressure trough in the Northwest - Southeast direction, connected to the storm in the East of the Philippines. The Southwest monsoon will strengthen, while the subtropical high pressure over the South China Sea will gradually weaken.
Due to the impact of the above weather patterns, the South continues to experience scattered showers and thunderstorms, common rainfall of 10-20 mm, locally over 50 mm. Rain mainly occurs in the late afternoon and evening. In thunderstorms, the risk of tornadoes, lightning, hail and strong gusts of wind is still high.
