Sheenjek River Fire

200825,872 acresAlaska

The Sheenjek River Fire burned 25,872 acres, about 40 square miles, across Yukon-Koyukuk Census Area. It began on June 30, 2008.

Watch how it happened

Sheenjek River Fire · 2008

How it happened

Watch it burn in the order satellites saw it, coloured by how severely each place burned.

About this replay
Date (UTC)—Historical replay
Burned so far—acres
High severity—of the area so far
Detections408satellite fire pixels

How severely it burned

Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.

Map of burn severity across the Sheenjek River Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered3.6%924
Moderatemixed: many trees killed, some survive21%5,368
Lowsurface fire, most trees survive37%9,451
Unburned to lowislands inside the perimeter, little change28%7,251
Increased greennessvegetation greener after the fire than before3.0%788
Not mappedcloud, shadow or water in the satellite images8.1%2,091

4% of the area inside the perimeter burned at high severity, about 924 acres; 24% 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.

Acres burned by county
Yukon-Koyukuk Census AreaAK25,886

Other large fires in Alaska in 2008

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildland Fire Use.