Nulato Fire

201535,698 acresAlaska

The Nulato Fire burned 35,698 acres, about 56 square miles, across Yukon-Koyukuk Census Area. It began on June 21, 2015.

Watch how it happened

Nulato Fire · 2015

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
Detections932satellite 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 Nulato Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered27%9,517
Moderatemixed: many trees killed, some survive33%11,850
Lowsurface fire, most trees survive23%8,169
Unburned to lowislands inside the perimeter, little change15%5,381
Increased greennessvegetation greener after the fire than before0.2%54
Not mappedcloud, shadow or water in the satellite images2.0%727

27% of the area inside the perimeter burned at high severity, about 9,517 acres; 60% 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 AreaAK35,728

Other large fires in Alaska in 2015

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