Jack Fire
202133,727 acresOregon
The Jack Fire burned 33,727 acres, about 53 square miles, across Douglas County. It began on July 6, 2021.
Watch how it happenedJack Fire · 2021
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 | 4.8% | 1,633 |
| Moderatemixed: many trees killed, some survive | 20% | 6,800 |
| Lowsurface fire, most trees survive | 58% | 19,710 |
| Unburned to lowislands inside the perimeter, little change | 16% | 5,511 |
| Not mappedcloud, shadow or water in the satellite images | 0.2% | 64 |
5% of the area inside the perimeter burned at high severity, about 1,633 acres; 25% 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.
| Douglas County | OR | 33,748 |
Other large fires in Oregon in 2021
- Bootleg Fire413,425 acres
- Cougar Peak Fire95,373 acres
- Smith Fire50,712 acres
- Gales Fire31,633 acres
- Chaos Fire29,675 acres
- Bull Complex26,223 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.