Walker Fire

201958,769 acresCalifornia

The Walker Fire burned 58,769 acres, about 92 square miles, across Plumas County. It began on September 4, 2019.

Watch how it happened

Walker 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
Detections3,857satellite 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 Walker Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered14%8,194
Moderatemixed: many trees killed, some survive22%13,146
Lowsurface fire, most trees survive42%24,936
Unburned to lowislands inside the perimeter, little change20%11,881
Increased greennessvegetation greener after the fire than before0.9%538
Not mappedcloud, shadow or water in the satellite images0.1%74

14% of the area inside the perimeter burned at high severity, about 8,194 acres; 36% 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
Plumas CountyCA58,749

Other large fires in California in 2019

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