Chiang Mai Warns of Heavy Rain, Flash Floods, Landslides Risk

Chiang Mai province warned the public to be on alert for heavy rain from October 5 to 10, citing the risk of flash floods and landslides. On October 6, 2025, Watana Sakorn, head of the Chiang Mai Provincial Office of Disaster Prevention and Mitigation, joined a briefing urging people to monitor heavy to very heavy rain and thunderstorms expected during the period, which could cause sudden flooding, flash floods, and landslides, especially on slopes and hillside areas. Data from the past 24 hours as of 07:00 showed Mae Jaem district recorded the highest rainfall at 112.80 mm, followed by Chom Thong at 96.00 mm and Phrao at 79.50 mm. Residents in those and other at‑risk areas were advised to stay closely updated. Regarding the Ping River, water levels remained below the banks: at station P.67 Ban Mae Ta the level was 0.44 metres, 3.00 metres below the bank, and at station P.1 Nawarat Bridge it was 1.12 metres, 4.20 metres below the bank. Meanwhile, the combined storage of large, medium and small reservoirs in Chiang Mai totals 698.48 million cubic metres, of which 566.17 million cubic metres (81.06 percent) is currently filled. Chiang Mai Governor Tossaphol Pheuanudom urged the public to closely follow weather information and official announcements, to watch for flood‑prone areas, flash floods and mudslides, to avoid travelling through risky routes, and to stay clear of open spaces under large trees or weak billboards. Farmers were advised to protect their crops from damage while prioritising their own safety. The flood situation in Chiang Mai on October 5 affected six districts, 11 sub‑districts and 13 villages: Mueang Chiang Mai, Mae Rim, Chiang Dao, Kalayaniwattana, Mae Jaem and San Kamphaeng. By now conditions in all affected areas have returned to normal. In Mueang Chiang Mai, ten points of standing water awaiting drainage were identified; the province has been monitoring and addressing the situation continuously, and by October 6 all points had cleared with no injuries or deaths reported. In Phrao district, flash floods and river overflow affected three sub‑districts, four villages and one school; conditions have now normalised and the district and local administrative organisations have begun initial assistance. In Mae Jaem district flash floods occurred in one sub‑district and one village, and relief operations have already been carried out. However, in Kalayaniwattana district flash floods hit agricultural land in Ban Chan sub‑district, village 3, resulting in one fatality. The district and local organisations have provided initial aid and will continue assistance according to regulations and cabinet resolutions. Chiang Mai province urged residents to keep monitoring rain forecasts and official warnings, and to call the Department of Disaster Prevention and Mitigation hotline 1784 or the Ministry of Interior’s Dharm Centre line 1567, both available 24 hours a day, if a public‑safety incident occurs or help is needed.