Lloyd Fire

201556,533 acresAlaska

The Lloyd Fire burned 56,533 acres, about 88 square miles, across Yukon-Koyukuk Census Area. It began on June 23, 2015.

Watch how it happened

Lloyd 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
Detections1,230satellite 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 Lloyd Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered57%32,147
Moderatemixed: many trees killed, some survive24%13,801
Lowsurface fire, most trees survive10.0%5,637
Unburned to lowislands inside the perimeter, little change6.2%3,499
Increased greennessvegetation greener after the fire than before0.7%424
Not mappedcloud, shadow or water in the satellite images1.8%1,026

57% of the area inside the perimeter burned at high severity, about 32,147 acres; 81% 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 AreaAK56,568

Other large fires in Alaska in 2015

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