Hadweenzic River Fire

201957,428 acresAlaska

The Hadweenzic River Fire burned 57,428 acres, about 90 square miles, across Yukon-Koyukuk Census Area. It began on June 22, 2019.

Watch how it happened

Hadweenzic River Fire · 2019

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
Detections5,340satellite 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 Hadweenzic River Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered15%8,424
Moderatemixed: many trees killed, some survive35%19,815
Lowsurface fire, most trees survive31%17,986
Unburned to lowislands inside the perimeter, little change11%6,359
Increased greennessvegetation greener after the fire than before1.4%789
Not mappedcloud, shadow or water in the satellite images7.1%4,055

15% of the area inside the perimeter burned at high severity, about 8,424 acres; 49% 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 AreaAK57,468

Other large fires in Alaska in 2019

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