Lampang: Heavy rain at the Lampang-Sukhothai border has led to an overflow at the Mae Mok Dam, causing water levels to surpass the spillway.

According to Thai News Agency, the rainfall over the past two days has exceeded 300 millimeters, affecting the Mae Mok Reservoir and other locations by surpassing their storage capacities.

The Royal Irrigation Department’s Regional Irrigation Office 4 reported that the water influx into the Mae Mok Reservoir in Thoen District, Lampang Province, has exceeded its storage level, reaching 127 million cubic meters, compared to a maximum capacity of 110 million cubic meters. This necessitated the release of approximately 286 cubic meters per second, resulting in the overflow of downstream canals, with water levels reaching between 0.2 and 0.8 meters. However, these levels are showing signs of decline.

In Si Satchanalai District, Sukhothai Province, the Huai Tha Pha Reservoir has also surpassed its capacity, holding over 68 million cubic meters of water against a maximum of 58 million cubic meters. The release rate here is approximately 55 cubic meters per second, leading to canal overflows with water levels between 0.2 and 0.5 meters, which are also trending downward.

The Mae Ramphan Reservoir in Ban Dan Lan Hoi District, at its full capacity of 5 million cubic meters, is experiencing overflow from its emergency spillway. Water from these reservoirs is expected to flow into the Yom River canal, eventually reaching the Thung Thale Luang flood retention basin and low-lying areas, causing further overflows.

The 4th Regional Irrigation Office has instructed all irrigation projects to closely monitor the situation over the next two to three days. The aim is to prepare for and mitigate potential impacts on downstream communities and low-lying areas.