Williams Flats Fire
201944,655 acresWashington
The Williams Flats Fire burned 44,655 acres, about 70 square miles, across Ferry County. It began on August 2, 2019.
Watch how it happenedWilliams Flats 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 | 10% | 4,590 |
| Moderatemixed: many trees killed, some survive | 36% | 15,899 |
| Lowsurface fire, most trees survive | 48% | 21,648 |
| Unburned to lowislands inside the perimeter, little change | 5.6% | 2,496 |
10% of the area inside the perimeter burned at high severity, about 4,590 acres; 46% 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.
| Ferry County | WA | 44,677 |
Other large fires in Washington in 2019
- Cold Creek Fire43,758 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.