On the afternoon of April 22, 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 Thu Duc City (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 0-15 mm, in some places over 15 mm. During thunderstorms, beware of tornadoes, hail and strong gusts of wind of about level 5-7 (8-17 m/s), heavy rain causing local flooding.
The figure causes thunderstorms is due to the low pressure groove with axis at about 24-27 degrees North latitude connected to the western low pressure area; From about 23-24.4, it was compressed, gradually moved to the south and gradually increased by the Northern continental high pressure unit. Above high, subtropical high pressure with stable intensity.
Weather forecast for the next 24-48 hours, the low pressure trough has an axis at about 24-27 degrees North latitude connecting to the low pressure area in the West. From about April 23 to 24, it will be compressed, gradually moving south and gradually filled up by the high pressure area of the Northern continental high pressure. Above, the subtropical high pressure will be stable.
The weather is forecasted in the next 3 days, the low pressure groove connected to the western low pressure area with axis at about 23-26 degrees the north latitude continues to be compressed, translated to the south and gradually increased. From the night of 24.4, the influence of the southwestern high -pressure margins of continental high pressure strengthened, later there was stability and weakness.
From about April 27-28 and around April 29-30, the low pressure trough will form again with an axis at about 24-26 degrees North latitude, then be compressed, pushed to the South and gradually filled by the continental high pressure in the North. Above, the subtropical high pressure is weak.
Therefore, the hot weather will continue to occur from April 22-23 and from May 27, 2020, the hot weather will be from 11-16am, the low humidity will make the hot and dry outdoor air more susceptible to fire and explosion, affecting health.
From April 22-26 and January 1, showers and thunderstorms tend to increase, beware of moderate rain, heavy rain, tornadoes, lightning and strong gusts of wind.
