Tonclonukna Creek Fire
2009158,922 acresAlaska
The Tonclonukna Creek Fire burned 158,922 acres, about 248 square miles, across Yukon-Koyukuk Census Area. It began on May 23, 2009.
Watch how it happenedTonclonukna Creek Fire · 2009
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 | 21% | 33,719 |
| Moderatemixed: many trees killed, some survive | 46% | 73,178 |
| Lowsurface fire, most trees survive | 26% | 41,092 |
| Unburned to lowislands inside the perimeter, little change | 4.7% | 7,491 |
| Not mappedcloud, shadow or water in the satellite images | 2.1% | 3,404 |
21% of the area inside the perimeter burned at high severity, about 33,719 acres; 67% 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.
| Yukon-Koyukuk Census Area | AK | 159,039 |
Other large fires in Alaska in 2009
- Railbelt Complex (Minto Flats South)523,418 acres
- Big Creek Fire174,888 acres
- Titna River Fire157,330 acres
- Nowitna Fire134,822 acres
- Zitziana Fire120,312 acres
- Wood River 1 Fire120,046 acres
- Railbelt Complex (Rex Creek)87,805 acres
- Stevens Creek 1 Fire81,227 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.