On the evening of July 31, monitoring on satellite cloud images, weather radar images, and lightning positioning showed that thunderstorm clouds were developing, causing showers and accompanied by thunderstorms and lightning in the areas of Hau Giang province, Can Tho city, Ben Tre, Ben Tre, Vinh Long, Tien Giang, Long An, Ho Chi Minh City, Dong Nai, Tay Ninh, Binh Phuoc.
In the coming hours, thunderstorm clouds will continue to develop and cause showers with thunderstorms and lightning in the above areas. Then, thunderstorm clouds tend to expand and spread to other neighboring areas.
Rainfall is commonly from 5-15mm, in some places it is over 15mm. During a thunderstorm, watch out for tornadoes, lightning, hail, and strong winds level 5-8 (8-21m/s).
In the next 24-48 hours, the low trough will have an axis through the Northern region. The southwest monsoon operates with average intensity. At high altitude, subtropical high pressure tends to encroach on the West.
From 72 hours to 10 days, a low pressure trough with an axis through the Northern region remains. The southwest monsoon operates with average intensity.
At high altitude, the subtropical high pressure has a horizontal axis across the South Central-South region, then gradually lifts its axis to the north. East wind disturbances move into the area from August 3-5.
Therefore, the thunderstorms occurring in the South gradually decrease, with rainfall concentrated in the afternoon and evening.
