On the afternoon of December 4, monitoring satellite cloud images, weather radar images and lightning positioning showed that the thunderstorm area was developing and causing rain with thunderstorms and lightning in the Can Gio area, Nha Be district, Cu Chi district (HCMC). In addition, thunderstorms in the Dong Nai and Binh Duong areas also tended to move towards HCMC.
In the next 0 - 3 hours, thunderstorms will continue to develop, causing showers, accompanied by thunderstorms and lightning in the above districts, then expanding to other neighboring areas.
Rainfall is generally from 6-30 mm, in some places over 39 mm. 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 weakening to the South. Above, the subtropical high pressure has an axis over the Central region, the high-altitude easterly wind disturbance is more active. The equatorial low pressure trough with an axis of 4-7 degrees North latitude has a weak impact on the South.
Weather forecast for the next 24-48 hours, the continental cold high pressure on December 6 will strengthen in the North, Central regions and diffuse to the South.
Northeast winds in the offshore waters of the Southeast region remain moderate to strong. Above, subtropical high pressure is stable.
The equatorial trough 3-7 degrees north latitude across the South China Sea lowers its axis southward and gradually weakens.
The continental cold high pressure will strengthen strongly in the North in the next 1-2 days, then gradually weaken, and will strengthen again on December 11-12. The Northeast wind in the sea off the Southeast will increase rapidly again on December 7. Above, the subtropical high pressure will operate stably, then gradually lift its axis to the North.
Therefore, in the next 2-3 days, the weather in the South will have scattered showers and thunderstorms, with some places having heavy rain, with the rain concentrated in the afternoon and evening. Be careful during thunderstorms because of the possibility of tornadoes, lightning and strong gusts of wind.
