Fifty-Eight Fire

199694,832 acresCalifornia

The Fifty-Eight Fire burned 94,832 acres, about 148 square miles, across San Luis Obispo County. It began on August 15, 1996.

Watch how it happened

Fifty-Eight Fire · 1996

How it happened

See how severely each place burned, revealed outward from where it started.

About this replay
IgnitionAugust 15, 1996Historical replay — order not recorded
Final area94,832 ac
Revealed—
Counties1

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 Fifty-Eight Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered8.4%7,974
Moderatemixed: many trees killed, some survive33%31,761
Lowsurface fire, most trees survive38%35,886
Unburned to lowislands inside the perimeter, little change20%18,515
Increased greennessvegetation greener after the fire than before0.7%664

8% of the area inside the perimeter burned at high severity, about 7,974 acres; 42% 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
San Luis Obispo CountyCA94,698

Other large fires in California in 1996

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