Mekong Delta: Flooding warning due to high tides

On May 31, the Southern Institute of Water Resources Research said that in June 2025, there will be two high tides higher than the average of many years in the West Sea. The risk of localized flooding in the Ca Mau peninsula increases.

Cai Lon - Cai Be sewer system ( Kien Giang )

According to the Southern Institute of Water Resources Research , the average total rainfall in the Ca Mau peninsula in May 2025 is from 50-110mm, mainly concentrated in the coastal areas of the West, some areas have heavy rainfall of over 200mm such as: An Bien - Kien Giang (315mm), U Minh (257mm), Thoi Binh - Ca Mau (237mm).

In June 2025, it is forecasted that there will be 2 high tides higher than the average of many years from 13-38cm. Specifically:

Phase 1 (June 12-14): On the West Sea side, the highest tide peak is at Song Doc station (0.80m), the highest tide peak is at Xeo Ro station (0.60m); on the East Sea side, the highest tide peak is at Ganh Hao station is 1.87m, at Tran De is 1.60m.

Phase 2 (from June 24 to 26): On the West Sea side, the highest tide peak at Song Doc station is 0.92m, at Xeo Ro station is 0.86m; on the East Sea side, the highest tide peak at Ganh Hao station is 1.98m, at Tran De is 1.69m... Notably, in the Cai Lon river mouth area, the tide peak this time is equivalent to the highest tide peak in May. However, the higher tide foot makes it difficult to drain, if combined with the strong southwest monsoon causing the water level to rise more than forecast, it may cause local flooding in some areas along the Cai Lon river that are not covered high enough to protect.

According to the Department of Agriculture and Environment of Bac Lieu province, during the rainy season (from June to November) combined with high tides, flooding often occurs, especially in rice growing areas. Statistics in the past 10 years (2015-2025), flooding damaged 20,494 hectares of rice.

The Cai Lon - Cai Be sewer system (Kien Giang) plays an important role in regulating salinity and freshwater in the Ca Mau peninsula.

The Southern Institute of Water Resources recommends that Cai Lon - Cai Be, Xeo Ro sluices (Kien Giang) need to closely coordinate with management and exploitation units and localities in the region for operation. It is recommended that the Southern Irrigation Exploitation Company Limited - Mekong Delta branch continue to closely monitor the developments of high tides, water levels, and actual operation of the cluster of works belonging to the Phung Hiep Road Management System to coordinate the operation and control of water resources, and support drainage on the system.

VINH TUONG

Source: https://www.sggp.org.vn/dbscl-canh-bao-ngap-ung-do-trieu-cuong-dang-cao-post797580.html