Real-time coverage of floods event — Green Flood in Thailand from: 30 Jul 2026 01 to: 21 Aug 2026 01. — Pandita Data.
🌊 OPEN LIVE 3D WEATHER ALERTSA prolonged monsoon flood event submerged central Thailand from July 30 to August 21, 2026, centered on Nakhon Sawan Province (18.755°N, 100.625°E). The inundation lasted 22 days, affecting agricultural lands, settlements, and key transportation corridors across the Chao Phraya River basin. Authorities classified this as a moderate-to-severe flood episode, displacing thousands and disrupting regional commerce.
This event poses immediate risks to over 500,000 residents in low-lying areas. Floodwaters contaminate drinking water supplies, trigger waterborne disease outbreaks, and strand communities isolated from emergency services. Agricultural losses exceed 2 billion Thai baht as rice paddies and aquaculture zones remain submerged.
The Green Flood resulted from the southwest monsoon interacting with a quasi-stationary frontal boundary over central Thailand. Atmospheric rivers transported moisture from the Bay of Bengal and Andaman Sea, producing sustained rainfall rates of 60–90 mm/day over the Chao Phraya watershed. The river's basin, spanning 160,000 km², channeled accumulated runoff into narrow plains, overwhelming embankments and retention capacity.
Soil saturation from previous monsoon cycles reduced infiltration; waterlogged ground could not absorb additional rainfall. The Nakhon Sawan area, positioned at a critical confluence point, experienced backwater effects as discharge velocity decreased, ponding water across rural districts.
Pandita Data's real-time hydrology simulations ingest satellite precipitation (NOAA IMERG), stream discharge (USGS), and river elevation sensors to model flood extent and inundation depth. Live Sentinel-1 SAR imagery penetrates cloud cover—critical during monsoon—to map water surface area every 6 hours. GDACS alerts trigger automated basin modeling, predicting peak flood timing and affected districts 48–72 hours ahead.
Thailand's monsoon season (May–October) produces 80% of annual rainfall. The Chao Phraya basin lies in a low-relief plain; historical floods (1995, 2011) inundated 30% of central farmland. Embankment breaches are common when discharge exceeds design capacity (15,000 m³/s). Climate change is intensifying moisture transport, extending flood durations.
Track this flood event and understand monsoon hydrology through Pandita Data's interactive 3D basin simulations and satellite inundation mapping. Real-time discharge forecasts and risk assessments empower communities to act before water arrives.