Chester Fire
200934,400 acresOklahoma
The Chester Fire burned 34,400 acres, about 54 square miles, across Major County. It began on July 10, 2009.
Watch how it happenedChester Fire · 2009
How it happened
Watch it burn in the order satellites saw it, coloured by how severely each place burned.
How severely it burned
Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.

| Severity | Share | Acres |
|---|---|---|
| Highmost vegetation consumed, soils altered | 6.1% | 2,090 |
| Moderatemixed: many trees killed, some survive | 20% | 6,786 |
| Lowsurface fire, most trees survive | 44% | 15,244 |
| Unburned to lowislands inside the perimeter, little change | 27% | 9,403 |
| Increased greennessvegetation greener after the fire than before | 2.5% | 877 |
6% of the area inside the perimeter burned at high severity, about 2,090 acres; 26% burned at moderate or high severity.
Monitoring Trends in Burn Severity (U.S. Geological Survey and USDA Forest Service). Classes come from the change in a Landsat burn index (dNBR) between images before and after the fire; acres are each class’s share of the fire’s mapped area.
Where it burned
Acres inside each county, measured from the satellite-mapped perimeter.
| Major County | OK | 34,431 |
Other large fires in Oklahoma in 2009
- Loco-Healdton Fire56,560 acres
- Putnam Fire42,962 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.