Fyu W 90 Fire
198869,048 acresAlaska
The Fyu W 90 Fire burned 69,048 acres, about 108 square miles, across Yukon-Koyukuk Census Area. It began on June 26, 1988.
Watch how it happenedFyu W 90 Fire · 1988
How it happened
See how severely each place burned, revealed outward from where it started.
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 | 34% | 23,452 |
| Moderatemixed: many trees killed, some survive | 11% | 7,474 |
| Lowsurface fire, most trees survive | 5.7% | 3,901 |
| Unburned to lowislands inside the perimeter, little change | 7.4% | 5,114 |
| Not mappedcloud, shadow or water in the satellite images | 42% | 29,078 |
34% of the area inside the perimeter burned at high severity, about 23,452 acres; 45% 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 | 69,094 |
Other large fires in Alaska in 1988
- 832604 Fire294,002 acres
- Fyu Ne 50 Fire132,474 acres
- 832043 Fire77,936 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.