On May 27, heavy rainfall hit southern Chiang Mai, with a peak measurement of 130 millimeters recorded at Doi Inthanon in Chom Thong district. Rainfall in nearby areas within the national park exceeded 100 millimeters, causing runoff into waterfalls, streams, and major rivers. Park officials issued warnings to residents along waterways and downstream areas to prepare for potential flooding as rain continues.
Tambon Tha Kham Municipality in Hot District reported flash floods in the Mae Chaem River near the Hot dam area, with rising water levels. Travelers on the Hot–Mae Sariang route were advised to monitor updates closely as rainfall persists in the southern part of the province.
In Chiang Mai city, rain also continues, especially north of Doi Suthep, causing runoff into lowland areas in Hang Dong and San Pa Tong districts, where localized flooding has occurred. Troops from the 33rd Military Circle at Kawila Camp were deployed to clear canals and remove vegetation in the Wat Muang Kai community and alongside railway tracks toward Saraphi District to improve water flow. Although the Ping River’s level has risen, it remains below critical levels.