Umtanum Ridge Fire
200334,361 acresWashington
The Umtanum Ridge Fire burned 34,361 acres, about 54 square miles, across Yakima County. It began on July 24, 2003.
Watch how it happenedUmtanum Ridge Fire · 2003
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 |
|---|---|---|
| Moderatemixed: many trees killed, some survive | 46% | 15,662 |
| Lowsurface fire, most trees survive | 45% | 15,519 |
| Unburned to lowislands inside the perimeter, little change | 9.3% | 3,180 |
No part of the fire was classed as high severity; 46% burned at moderate 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.
| Yakima County | WA | 34,351 |
Other large fires in Washington in 2003
- Fawn Peak Complex (Farewell)77,465 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.