On the afternoon of September 29, through monitoring satellite cloud images, lightning location images and weather radar images, it was shown that convective clouds still existed and developed in the areas of Vinh Cuu (Dong Nai); Chau Duc (Ba Ria - Vung Tau); Go Cong Tay (Tien Giang); Ben Cat and Dau Tieng towns (Binh Duong).
In Ho Chi Minh City, thunderstorms are developing and causing rain with thunderstorms and lightning in Cu Chi district. In addition, thunderstorms from Binh Duong province are also moving towards Ho Chi Minh City.
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 5-10mm, in some places over 10mm. During thunderstorms, beware of tornadoes, hail and strong gusts of wind of about level 5-7 (8-17m/s).
The thunderstorms are caused by the high altitude, the southern branch of the subtropical high pressure lifts the axis to the North, dominating the weather of the South.
According to the Southern Hydrometeorological Station, the southwest wind is weak in the southern sea areas. From tomorrow, September 30, the wind will increase slightly and operate at medium intensity.
The formation of a low pressure trough with an axis over the Central region connecting with storm Krathon tends to move towards Taiwan (China). Above, the subtropical high pressure with an axis over the Central region weakens and gradually retreats to the East.
From 72 hours to the 10th day, the low pressure trough has an axis through the Central region connecting with storm Krathon. The continental cold high pressure strengthens to the North of our country, compressing and pushing the low pressure trough to gradually move south through the South Central region. From around October 3-4, the continental cold high pressure weakens and moves to the East.
Above, the southern branch of the subtropical high pressure has an axis passing through the South. From October 3-4, the axis tends to lift to the North through the Central Central region. The high-altitude disturbances will operate well again, affecting the weather in the South. The southwest wind has a medium to weak intensity.
Therefore, the probability of rain will increase in the first days of October. 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.
