Walker Fire
201958,769 acresCalifornia
The Walker Fire burned 58,769 acres, about 92 square miles, across Plumas County. It began on September 4, 2019.
Watch how it happenedWalker Fire · 2019
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 | 14% | 8,194 |
| Moderatemixed: many trees killed, some survive | 22% | 13,146 |
| Lowsurface fire, most trees survive | 42% | 24,936 |
| Unburned to lowislands inside the perimeter, little change | 20% | 11,881 |
| Increased greennessvegetation greener after the fire than before | 0.9% | 538 |
| Not mappedcloud, shadow or water in the satellite images | 0.1% | 74 |
14% of the area inside the perimeter burned at high severity, about 8,194 acres; 36% 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.
| Plumas County | CA | 58,749 |
Other large fires in California in 2019
- Kincade Fire77,724 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.