On the afternoon of December 23, through satellite cloud images, weather radar and lightning positioning systems, thunderstorm areas are developing, causing rain with thunderstorms and lightning in Tam Long, Chau Pha, Long Huong, Nghia Thanh wards/communes. This cloud bloc is moving in the East Northeast - West Southwest direction.
From now until about the next 3 hours, thunderstorms will continue to develop, causing showers with thunderstorms and lightning in all of the above areas; then there is a trend to expand to Ba Ria ward, Long Son commune, Binh Khanh; Long Thanh town (Can Gio district), Phu My, Tan Thanh, Tan Phuoc, Tan Hai wards... and spread to some neighboring areas of Ho Chi Minh City.
The common rainfall is 5-15 mm, in some places over 20 mm. During thunderstorms, it is necessary to be on guard against tornadoes, lightning, hail and strong gusts of wind of level 5-8 (8-21 m/s), which can cause trees to fall, damage houses, traffic works and technical infrastructure; heavy rain can cause local flooding in low-lying areas.
Weather forecast for the next 24-48 hours, the continental cold high pressure will continue to weaken, and will strengthen again from the night of December 24. The low pressure trough with an axis of 4-7 degrees North latitude is weak.
The Northeast wind will have medium to strong intensity over the sea off the Southeast. Above, the subtropical high pressure with an axis through the Central region has stable intensity.
Weather forecast for the next 3-10 days, the continental cold high pressure will continue to strengthen to the South, then stabilize and gradually weaken. The Northeast wind in the Southeast sea area has little change in intensity, from the evening of December 25 it tends to get stronger. Above, the subtropical high pressure with an axis through the Central region will be stable, around December 30-31, weakening and gradually retreating to the East.
Therefore, from December 24-26, there is a possibility of thunderstorms in the evening, during thunderstorms, beware of tornadoes, lightning and strong gusts of wind affecting outdoor activities. The weather is dry, humidity decreases, some days have cold weather at night and early morning, and the strong sunshine during the day will affect health.