332557 Fire

1993214,170 acresAlaska

The 332557 Fire burned 214,170 acres, about 335 square miles, across Yukon-Koyukuk Census Area. It began on July 14, 1993.

Watch how it happened

332557 Fire · 1993

How it happened

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

About this replay
IgnitionJuly 14, 1993Historical replay — order not recorded
Final area214,170 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 332557 Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered24%51,351
Moderatemixed: many trees killed, some survive35%74,122
Lowsurface fire, most trees survive26%55,585
Unburned to lowislands inside the perimeter, little change13%28,358
Increased greennessvegetation greener after the fire than before0.1%115
Not mappedcloud, shadow or water in the satellite images2.2%4,638

24% of the area inside the perimeter burned at high severity, about 51,351 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 AreaAK214,280

Other large fires in Alaska in 1993

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