Pre-monsoon convective rainfall flooded Nakhon Ratchasima and Mekong Basin plains (13–22 May 2026). Water levels 1.2–1.8 m above normal; agricultural displacement and algal blooms reported.
🌊 OPEN LIVE 3D WEATHER ALERTSHeavy monsoonal rainfall triggered widespread flooding across central Thailand from 13–22 May 2026, with the hardest-hit region centered near 17.625°N, 100.403°E in Nakhon Ratchasima Province. The Green Flood—named for algal blooms visible in satellite imagery of inundated agricultural zones—displaced thousands and submerged critical rice-growing areas during the pre-monsoon season. Regional hydrological centers classified this as a moderate-to-high severity flood event, with water levels rising 1.2–1.8 meters above seasonal norms in key river valleys.
Southeast Asia's pre-monsoon transition (May) brings atmospheric instability as warm, moist air masses from the Indian Ocean collide with cooler air over mainland Thailand. This convergence zone, strengthened by topographic lifting from the Khao Yai and Phetchabun mountain ranges, triggered intense convective rainfall—locally exceeding 180 mm in 48 hours. Water cascading from elevated terrain rapidly saturated the Nakhon Ratchasima Basin, a low-gradient plain with limited drainage capacity, causing river stages on the Mun and Chi tributaries to exceed bankfull discharge.
Real-time NOAA satellite precipitation radar and USGS stream-gauge networks monitor rainfall intensity and river discharge across the Mun–Chi system. Pandita's 3D flood simulation integrates topographic data, infiltration rates, and channel geometry to forecast inundation extent and timing—critical for evacuation planning in low-lying villages and agricultural settlements.
Thailand ranks among Asia's most flood-prone nations; monsoonal floods affect 5–8 million people annually. Agriculture—rice production especially—sustains 30% of rural income; inundation for >7 days causes total crop loss. Urban flood risk in Bangkok and satellite cities is managed via canal systems; rural areas depend on early-warning protocols and community evacuation drills.
Monitor Pandita Data's real-time 3D flood simulation to track water levels, inundation boundaries, and safe evacuation corridors. Contact local provincial disaster-management offices for shelter locations and food distribution sites.