Bangkok: The Royal Irrigation Department (RID) has issued a warning regarding anticipated high tides between September 17-22. Water levels surrounding Phra Chulachomklao Fort and nearby regions are projected to rise 0.20 meters above the critical threshold, heightening the risk of overflow along the Chao Phraya, Tha Chin, and Mae Klong rivers.
According to Thai News Agency, the Office of National Water Resources (ONWR) has released a "Watch for High Tide" notification, advising residents and agencies along these rivers to closely monitor overflow levels during this period, particularly from 4:00 PM to 7:00 PM daily. Areas outside temporary embankments and levees, lacking permanent flood barriers, are of special concern. Mr. Surasee Kittimonthon, Secretary-General of ONWR, indicated that joint monitoring with the Hydrographic Department suggests a period of high sea levels is imminent. Water levels near Phra Chulachomklao Fort could reach 1.70-1.90 meters above mean sea level.
The rise in sea levels is attributed to a monsoon trough passing through Thailand, along with moderate southeasterly and southwesterly winds affecting the region and the Gulf of Thailand. This combination is causing ongoing rainfall, which, when coupled with rising sea levels, is expected to elevate river levels, particularly impacting low-lying areas. High-risk areas include Samut Prakan, Bangkok, Nonthaburi, Pathum Thani, Samut Sakhon, Nakhon Pathom, and Samut Songkhram provinces, especially communities along the affected rivers without permanent water protection systems.
The National Water Resources and Environmental Policy Committee urges relevant agencies to take immediate action on three fronts: closely monitoring the water situation, inspecting and reinforcing riverside flood protection structures, and informing residents in vulnerable areas. Additionally, they recommend preparing machinery and resources to assist and mitigate potential impacts promptly and managing water levels in reservoirs and floodgates to accommodate incoming floodwaters.
The Office of National Water Resources underscores that preparation and timely public notification are crucial in minimizing damage from the impending high tides. Continuous monitoring of weather and water conditions will be conducted to ensure effective management throughout this critical period.