CHIANG RAI — 31 July 2026, Heavy rainfall has caused the Lao and Korn rivers to overflow their banks and flood homes in parts of Chiang Rai, affecting at least 50 households, while authorities warn that water levels could rise further.
The flood situation in Chiang Rai remained under close watch following continuous accumulated rainfall in upper areas of the province. The heavy rain caused water levels in the Lao and Korn rivers to rise rapidly.
The overflowing water subsequently inundated homes in Pa O Don Chai subdistrict, Mueang district, with at least 50 households initially reported affected.
Ten households in Rong Khun village, Moo 1, located along the Lao River, were flooded, while another 40 households in San Sali village, Moo 5, along the Korn River, were affected.
Local administrative organisations and relevant agencies were surveying the damage and preparing to provide assistance to affected residents.
Pa O Don Chai Mayor Sirimongkol Khamdee said several days of continuous rain had caused the Korn River to overflow and flood nearby homes. Meanwhile, water levels in the Lao River behind Rong Khun Market had risen rapidly, inundating riverside and low-lying areas at several locations.
Chiang Rai Governor Chuchip Phongchai has ordered the provincial Disaster Prevention and Mitigation Office and all relevant agencies to closely monitor the situation, speed up damage assessments and provide assistance to residents as quickly as possible.
Authorities have also been instructed to maintain continuous surveillance as water levels remain at risk of rising further.