Alley Fire
198551,459 acresFlorida
The Alley Fire burned 51,459 acres, about 80 square miles, across Broward County. It began on February 25, 1985.
Watch how it happenedAlley Fire · 1985
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 |
|---|---|---|
| Lowsurface fire, most trees survive | 75% | 38,403 |
| Unburned to lowislands inside the perimeter, little change | 0.1% | 75 |
| Not mappedcloud, shadow or water in the satellite images | 25% | 12,980 |
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.
| Broward County | FL | 51,503 |
Other large fires in Florida in 1985
- Unnamed Fire34,995 acres
- Unnamed Fire25,859 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.