Turquoise Lake Fire

201086,859 acresAlaska

The Turquoise Lake Fire burned 86,859 acres, about 136 square miles, across Yukon-Koyukuk Census Area. It began on May 17, 2010.

Watch how it happened

Turquoise Lake Fire · 2010

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
Detections355satellite 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 Turquoise Lake Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered31%27,097
Moderatemixed: many trees killed, some survive28%24,335
Lowsurface fire, most trees survive25%21,570
Unburned to lowislands inside the perimeter, little change7.3%6,325
Increased greennessvegetation greener after the fire than before0.4%323
Not mappedcloud, shadow or water in the satellite images8.3%7,210

31% of the area inside the perimeter burned at high severity, about 27,097 acres; 59% 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 AreaAK86,915

Other large fires in Alaska in 2010

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