41 Fire
199448,452 acresCalifornia
The 41 Fire burned 48,452 acres, about 76 square miles, across San Luis Obispo County. It began on August 14, 1994.
Watch how it happened41 Fire · 1994
How it happened
See how severely each place burned, revealed outward from where it started.
How severely it burned
Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.
| Severity | Share | Acres |
|---|---|---|
| Highmost vegetation consumed, soils altered | 62% | 30,017 |
| Moderatemixed: many trees killed, some survive | 19% | 9,392 |
| Lowsurface fire, most trees survive | 8.6% | 4,161 |
| Unburned to lowislands inside the perimeter, little change | 9.0% | 4,356 |
| Increased greennessvegetation greener after the fire than before | 1.1% | 527 |
62% of the area inside the perimeter burned at high severity, about 30,017 acres; 81% 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.
| San Luis Obispo County | CA | 48,441 |
Other large fires in California in 1994
- Cottonwood Fire47,943 acres
- Barkley Fire44,235 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.