Jolly Mountain Fire
201738,148 acresWashington
The Jolly Mountain Fire burned 38,148 acres, about 60 square miles, across Kittitas County. It began on August 11, 2017.
Watch how it happenedJolly Mountain Fire · 2017
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 | 19% | 7,241 |
| Moderatemixed: many trees killed, some survive | 30% | 11,417 |
| Lowsurface fire, most trees survive | 39% | 14,725 |
| Unburned to lowislands inside the perimeter, little change | 12% | 4,430 |
| Not mappedcloud, shadow or water in the satellite images | 0.9% | 332 |
19% of the area inside the perimeter burned at high severity, about 7,241 acres; 49% 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.
| Kittitas County | WA | 38,159 |
Other large fires in Washington in 2017
- Diamond Creek Fire117,619 acres
- Norse Peak Fire50,992 acres
- Silver Dollar Fire30,795 acres
- Sutherland Canyon Fire29,507 acres
- 400 Fire27,233 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.