3322292 Fire

199360,748 acresAlaska

The 3322292 Fire burned 60,748 acres, about 95 square miles, across Yukon-Koyukuk Census Area. It began on June 6, 1993.

Watch how it happened

3322292 Fire · 1993

How it happened

See how severely each place burned, revealed outward from where it started.

About this replay
IgnitionJune 6, 1993Historical replay — order not recorded
Final area60,748 ac
Revealed—
Counties1

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 3322292 Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered12%7,437
Moderatemixed: many trees killed, some survive39%23,969
Lowsurface fire, most trees survive27%16,390
Unburned to lowislands inside the perimeter, little change11%6,769
Increased greennessvegetation greener after the fire than before0.3%177
Not mappedcloud, shadow or water in the satellite images9.9%6,005

12% of the area inside the perimeter burned at high severity, about 7,437 acres; 52% 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 AreaAK60,782

Other large fires in Alaska in 1993

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