Truckee Fire

201798,419 acresNevada

The Truckee Fire burned 98,419 acres, about 154 square miles, across 3 counties. It began on July 3, 2017.

Watch how it happened

Truckee Fire · 2017

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

Detections756satellite fire pixels

Fire milestones

Burn severityHigh, Moderate, Low, Unburned to low, Increased greenness

Burning nowAreas reached in the last half day of satellite passes

Washington, D.C., to scale61 square miles of land, drawn at the fire’s scale

Timing: NASA FIRMS satellite fire detections (590 VIIRS and 166 MODIS) inside the final perimeter; each place takes the time of its nearest detection, so the order is satellite-observed but interpolated between passes, roughly every 12 hours. Severity: Monitoring Trends in Burn Severity (USGS, U.S. Forest Service), mapped from Landsat after the fire.

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 Truckee Fire

Burn severity by class
Severity	Share	Acres
Lowsurface fire, most trees survive	92%	90,859
Unburned to lowislands inside the perimeter, little change	7.7%	7,559

Most of the area inside the perimeter burned at low severity or not at all.

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

Churchill County	NV	54,631
Washoe County	NV	43,664
Lyon County	NV	116

Other large fires in Nevada in 2017

Roosters Comb Fire217,340 acres
Snowstorm Fire153,432 acres
Tohakum 2 Fire92,729 acres
Long Valley Fire80,503 acres
Dry Gulch Fire55,094 acres
Draw Fire27,052 acres
Tabor Flats Fire25,171 acres

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