Floods in the Mekong Delta will be different today.

The militia force of Vinh Long province helps people harvest rice after many days of storms and rain - Photo: CHI HANH

Moderate to heavy rain for the area

During the peak of the rainy season in July - August - September, the following developments occur: In July, the southwest monsoon is strong and there will be many widespread rains with moderate, heavy to very heavy rain in some places and lasting for many days. Beware of the possibility of thunderstorms, tornadoes, lightning, hail, and strong gusts of wind during thunderstorms.

August from mid to late month is likely to have a decrease in rainfall during the rainy season. September has some strong southwest winds causing widespread rain with moderate to heavy to very heavy rain lasting for a few days.

Although it is forecasted that this year there will be many storms and tropical depressions, they are unlikely to directly affect the sea or mainland areas of the South.

However, these patterns will cause strong southwest winds leading to widespread thunderstorms with moderate, heavy to very heavy rain for the area. It is necessary to be on guard against thunderstorms, tornadoes, lightning, hail, and gusts of wind that appear frequently with strong intensity. At the same time, pay attention to strong southwest monsoons that cause dangerous weather at sea.

As for the question of whether rain caused by storms and tropical depressions will increase the amount of water in the Mekong River or not, it is difficult to say. Naturally, more rain means more water, but the current flow of the Mekong River is no longer natural but depends on the regulation of countries along the river.

Floods higher than average for many years

According to Mr. Quyet, in the past two months, water levels at stations on the mainstream of the Mekong River have risen rapidly. Water levels at Kratie station are approximately the same as in 2023 and lower than the average of many years. The total flow through Kratie station in April and May was about 1.2% higher than the same period last year but about 11% lower than the average of many years.

In the upstream area of the Mekong River, water levels at Tan Chau and Chau Doc stations have begun to rise slowly since May. At most stations in the Long Xuyen Quadrangle and Dong Thap Muoi areas, water levels are higher than the same period last year and higher than the average of many years. In the next three months, water levels at stations in the upstream area of the Mekong River, Dong Thap Muoi and Long Xuyen Quadrangle will rise rapidly.

In October, floods in the upper Mekong River basin are likely to peak and then gradually subside. From mid-November to late December, water levels at stations will drop rapidly and switch to tidal regime.

According to forecasts, the southwest monsoon will continue to operate over the Southern sea in October, the wind intensity will gradually weaken and change to the northeast monsoon around the beginning of November. At this time, the wind can cause higher tides, causing flooding in the interior of the fields.

In addition, during this period, when there is a storm or tropical depression combined with cold air from the North, it will cause strong winds, big waves and rising water in the sea area from Ba Ria - Vung Tau to Ca Mau. Strong seas pose a danger to ships and marine and coastal structures.

The impact of storms is also very dangerous.

The Kien Giang Province Hydrometeorological Station has reported on the assessment of natural disaster situations and forecasts of natural disaster trends from now until the end of 2024: heavy rains are forecast to appear later than the average of many years.

Note that there will be widespread heavy rains causing localized flooding in some low-lying areas and urban flooding in Rach Gia and Phu Quoc.

In addition, it is necessary to be on guard against strong winds and large waves at sea due to the influence of the circulation of storms, tropical depressions and strong southwest monsoons that disrupt the activities of ships. It is necessary to be on guard against the phenomenon of rising water due to strong winds combined with high tides causing flooding in the downstream areas of Cai Lon and Cai Be rivers, Can Gao - Xeo Ro canal and coastal areas of An Bien and An Minh.

Mr. Truong Hoang Giang - Director of Vinh Long Province's Hydrometeorological Station - assessed that the upcoming weather situation is likely to impact the environment, living conditions, infrastructure, and socio-economic activities.

Thunderstorms, lightning, whirlwinds, hail, strong gusts of wind and heavy rain negatively affect agricultural production activities and people's lives, posing many dangers to human life and property.

Source: https://tuoitre.vn/lu-o-dong-bang-song-cuu-long-nay-se-khac-20240627075456893.htm