Flash Flood at Mae Sa Waterfall, Chiang Mai Sweeps Tourist Away — Rescue Teams Search

On August 15, 2016, a sudden flash flood occurred at Mae Sa Waterfall in Doi Suthep–Pui National Park, Chiang Mai, sending one tourist swept away while other visitors suffered minor injuries and were assisted by park emergency staff and local rescue teams.

The incident happened at around 3:00 p.m. while several tourists were walking and taking photos around the waterfall tiers. Officials said heavy rain fell in the headwaters on the mountain range, causing the stream’s water level to rise rapidly and turn into a fast-moving flash flood. A group of visitors was caught in the current; some slipped and sustained minor injuries, and some were able to crawl ashore, but one person was carried away. Park rangers, municipal rescue units and soldiers from a nearby military unit rushed to help.

Rescue teams spent urgent hours searching the area where the tourist went missing, using an inflatable boat and safety equipment. Part of the search involved clambering along rocks and slippery river surfaces, which carried a risk of secondary accidents. Officials said the search was made more difficult because the water was still running fast and weather conditions were unfavorable. At the same time, emergency medical teams provided first aid to the injured at the scene before transferring them to a nearby hospital for detailed examination.

The incident alarmed local residents and tourism operators because Mae Sa Waterfall is a popular destination for both domestic and international visitors. Park data indicate that visitor numbers can rise during the rainy season, increasing the risk of flash floods. Park officials said they have stepped up monitoring and prepared emergency plans but still face challenges in early warning because mountain weather can change rapidly.

As for community and tourism impacts, the flash flood cut off some routes and halted travel in parts of the waterfall area. tour operators and nearby shops faced income uncertainty from the hit to tourism. Local authorities said they would work with relevant agencies to improve prevention measures, add warning signs and drainage points, and provide training for staff and local tourism operators to better prepare for future emergencies.

Overall, the flash flood at Mae Sa highlights the vulnerability of nature-based tourism to extreme weather. Disaster and water management experts have called for river monitoring systems linked to the Meteorological Department and other agencies so warnings to tourists and residents can be faster and more effective. The public and visitors are advised to follow park announcements, avoid swimming or approaching waterways after heavy rain, and be prepared with safety equipment when visiting natural attractions during the rainy season.