Cougar Creek Fire
201842,680 acresWashington
The Cougar Creek Fire burned 42,680 acres, about 67 square miles, across Chelan County. It began on July 28, 2018.
Watch how it happenedCougar Creek Fire · 2018
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 | 15% | 6,310 |
| Moderatemixed: many trees killed, some survive | 28% | 11,838 |
| Lowsurface fire, most trees survive | 44% | 18,623 |
| Unburned to lowislands inside the perimeter, little change | 14% | 5,827 |
| Increased greennessvegetation greener after the fire than before | 0.2% | 82 |
15% of the area inside the perimeter burned at high severity, about 6,310 acres; 43% 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.
| Chelan County | WA | 42,681 |
Other large fires in Washington in 2018
- Grass Valley Fire76,057 acres
- Boylston Fire66,325 acres
- Crescent Mountain Fire53,264 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.