Real-time coverage of wildfires event — HARRISON Wildfire, Osage, Oklahoma — Pandita Data.
🔥 OPEN LIVE 3D WILDFIRE GLOBEA significant wildfire has ignited in Osage County, Oklahoma, near Harrison at coordinates 36.569°N, 96.849°W on April 9, 2026. The Harrison Wildfire poses an immediate threat to regional air quality, grassland ecosystems, and nearby communities across the north-central Oklahoma prairie. Real-time monitoring from the Integrated Reporting of Wildland-Urban Interface Risks (IRWIN) system indicates active fire progression requiring urgent evacuation and air quality precautions across a multi-county impact zone.
Wildfires across the Oklahoma prairie ecosystem burn through grassland and shrubland dominated by native grasses, mesquite, and sparse woody vegetation. The Harrison fire's behavior is controlled by three primary physical drivers: fuel load, atmospheric conditions, and topography.
Fuel Structure: Oklahoma's shortgrass and mixed-grass prairie contains dry vegetation with high surface-area-to-mass ratios—ideal kindling for rapid fire spread. In spring, dormant vegetation from winter becomes increasingly desiccated, lowering the moisture content threshold needed for ignition. Dead grass and leaf litter create a continuous fuel bed that allows flames to propagate laterally at rates exceeding 10 mph under windy conditions.
Atmospheric Drivers: Spring wind patterns across the Great Plains accelerate fire spread significantly. Southerly and southwesterly winds typical of April transport warm, dry air masses from the Gulf and southwest deserts, reducing relative humidity and increasing evapotranspiration. Wind shear creates turbulent eddies that loft embers hundreds of meters downwind, starting spot fires ahead of the main fire front—a process called spotting that complicates containment efforts.
Topography Impact: Osage County's gently rolling terrain allows fire to advance across ridgelines; upslope propagation accelerates flames as heated air and gases rise, preheating vegetation above. The landscape's open grassland offers minimal natural firebreaks, enabling uninterrupted spread until humans intervene with suppression or terrain barriers.
Pandita Data's real-time wildfire simulation integrates satellite data from NOAA's Advanced Baseline Imager (ABI) and NASA's Moderate Resolution Imaging Spectroradiometer (MODIS). These sensors detect thermal anomalies—infrared signatures of active flame and hot ash. IRWIN, operated by the U.S. Department of Interior and U.S. Forest Service, aggregates fire perimeter data, incident command updates, and fuel moisture measurements into a unified 3D visualization.
Our interactive wildfire module displays active fire extent, smoke plume trajectory modeled from atmospheric wind fields (sourced from NOAA's Rapid Refresh model), and air quality index (AQI) predictions based on particulate matter concentrations. Users can manipulate wind speed and fuel moisture sliders to understand how environmental changes affect spread rates—a critical tool for emergency managers and residents assessing risk.
Oklahoma experiences 2,000+ wildfires annually; spring fires (March–June) account for ~35% of annual acreage burned. Grassland fires spread 3–5× faster than forest fires due to low fuel moisture and continuous ground-level fuel continuity. Smoke from large fires degrades air quality across multiple states; PM₂.₅ concentrations can exceed 300 µg/m³ within 50 km of active fire fronts.