Williams Flats Fire

201944,655 acresWashington

The Williams Flats Fire burned 44,655 acres, about 70 square miles, across Ferry County. It began on August 2, 2019.

Watch how it happened

Williams Flats 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
Detections2,554satellite 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 Williams Flats Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered10%4,590
Moderatemixed: many trees killed, some survive36%15,899
Lowsurface fire, most trees survive48%21,648
Unburned to lowislands inside the perimeter, little change5.6%2,496

10% of the area inside the perimeter burned at high severity, about 4,590 acres; 46% 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
Ferry CountyWA44,677

Other large fires in Washington in 2019

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