34 Complex

201857,492 acresOklahoma

The 34 Complex burned 57,492 acres, about 90 square miles, across 2 counties. It began on April 12, 2018.

Watch how it happened

34 Complex · 2018

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
Detections279satellite 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 34 Complex
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered1.2%709
Moderatemixed: many trees killed, some survive24%13,811
Lowsurface fire, most trees survive62%35,477
Unburned to lowislands inside the perimeter, little change13%7,492

1% of the area inside the perimeter burned at high severity, about 709 acres; 25% 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
Woodward CountyOK50,484
Harper CountyOK7,048

Other large fires in Oklahoma in 2018

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