Autoplay
Thailand Alerts 42 Provinces as Northern Runoff Triggers Flooding
TNN•7:20•Disasters•
News
Heavy rainfall and increased discharge from the Chao Phraya Dam cause flooding in central provinces, while flash floods hit Mae Hong Son.
Smart Chapters
6 chaptersInsights
Events
Significant rainfall accumulated in the upper Chao Phraya basin over the last 30 days.
September 23, 2026: Chao Phraya Dam discharge increased to 1,620 cubic meters per second, causing overflows in Ayutthaya and Ang Thong.
September 23, 2026: A severe flash flood hits Sop Moei District, Mae Hong Son.
September 23-27, 2026: Period of predicted heavy to very heavy rain across 42 provinces.
Who & What's Involved
Office of National Water ResourcesThai Meteorological DepartmentRoyal Irrigation DepartmentBangkok Metropolitan Administration (BMA)Chao Phraya DamChayan Muangsong
Topics
FloodingWater ManagementFlash FloodsWeather ForecastingDisaster Preparedness
Locations
Phra Nakhon Si AyutthayaAng ThongMae Hong SonBangkokSamut Prakan