On the afternoon of December 13, combined with monitoring on satellite cloud images, lightning location data and weather radar images, convective clouds continued to form in Binh Phuoc, Dong Nai, Ba Ria - Vung Tau, Ho Chi Minh City, Long An, Tien Giang, Ben Tre, Tra Vinh, Soc Trang, Vinh Long, Bac Lieu... The cloud area tends to move from East to West.
From now until the next 4 hours, these convective clouds will cause showers and thunderstorms in the above mentioned area and surrounding areas. Some places will have about 30mm of rain in 2 hours. During the thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
The cause of thunderstorms is due to the continental cold high pressure strengthening strongly in the Northern and Central provinces. The equatorial low pressure trough with an axis at about 5-8 degrees North latitude is gradually becoming stronger.
The subtropical high pressure system has an axis through the North Central region. The Northeast wind over the Southeast sea operates at an average intensity.
Weather forecast for the next 24-48 hours, the continental cold high pressure continues to strengthen to the South. Above, the subtropical high pressure with an axis through the North Central region is stable. The equatorial low pressure trough located at about 4-7 degrees North latitude continues to maintain.
The upper easterly wind disturbance is well established over the South. The northeasterly wind over the offshore waters of the Southeast is moderate to strong.
From December 16, the continental cold high pressure gradually weakened, and around December 18-19, it is likely to weakly strengthen again in the North of our country.
Above, the subtropical high pressure will lower its axis to the South through the Central - South Central regions. From around December 16-17, it will weaken in intensity and gradually withdraw its circulation to the East.
The equatorial low pressure trough gradually moves southward and the upper easterly wind disturbance gradually weakens. The northeasterly wind in the offshore waters of the Southeast is strong.
Therefore, in the next 1-2 days, the probability of thunderstorms in the Southern region is high. Be careful during thunderstorms because of the possibility of tornadoes, lightning and strong gusts of wind.
