On the afternoon of May 22, thunderstorms are developing and causing rain with thunderstorms and lightning in Thu Duc City, District 12, Hoc Mon District.
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 4-15 mm, in some places over 20 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 low pressure grooves connecting the western low pressure area with axial shaft over 24-27 degrees North latitude. Above high, subtropical high pressure with axis through the central maintenance. The south, the equatorial low-pressure trench is about 6-9 degrees the north latitude moving to the north.
Weather forecast for the next 24-48 hours, the low pressure trough connecting with the hot low pressure area in the West will be compressed to the South due to the strengthening of the continental cold high pressure.
Above, the subtropical high pressure with an axis through the Central region will lift its axis to the North and retreat to the East. To the South, the equatorial low pressure trough has an axis through the South and South Central regions.
The weather is forecasted in the next 3 days, the low pressure groove connected to the western low pressure area is compressed to the south. Above high, subtropical high pressure with axis through the middle of the zone, until about 26-27.5 subtropical high pressure encroached on the West.
In the South, the equatorial low pressure trough over the South and South East Sea will operate well, and will gradually weaken by around May 27.
Therefore, Ho Chi Minh City will have many showers and thunderstorms this week. The total rainfall is generally 120-200 mm, some places over 200 mm, with the possibility of many moderate and heavy rain points, so in thunderstorms, it is necessary to be on guard against thunderstorms, tornadoes, hail and strong gusts of wind, as well as heavy rain causing flooding.