Safety
GISTDA Releases Flood Simulation Models for Nan Province
Thailand's space agency has published flood simulation data for Nan to assist in evacuation planning and risk assessment.
On August 20, 2026, the Geo-Informatics and Space Technology Development Agency (GISTDA) released flood simulation imagery and data for Nan province. According to Prachachat Business, these models are designed to provide critical insights for local authorities and residents regarding potential flood risks.
The simulation specifically highlights areas at risk should the water level at the N.1 monitoring station reach 201.50 meters above mean sea level. GISTDA advises relevant stakeholders to utilize this data to inform decisions regarding evacuation plans, the relocation of valuable assets to higher ground, and the identification of routes that may become impassable due to rising waters.
For residents and travellers in the region, this information serves as a tool for situational awareness. Monitoring official updates is essential, as the simulation is a predictive model rather than a real-time observation of current flood conditions. It remains to be confirmed how local authorities will integrate these specific projections into their immediate emergency response protocols. Those currently in or planning to visit Nan are encouraged to stay informed through local government channels and to exercise caution in low-lying areas, as conditions can change rapidly depending on rainfall and water management decisions.