Burn severity · Jefferson County 2026
Back to the Jefferson County 2026 Burn severity tab
| Acres by severity and land cover | Forest | Range (shrubland) | Grassland | Other | Unclassified | Acres in Jefferson County |
|---|---|---|---|---|---|---|
| Unburned to very low | 1 | 4 | 2 | 1 | 0 | 9 |
| Low | 14 | 33 | 1 | 4 | 0 | 52 |
| Moderate low | 30 | 79 | 4 | 3 | 0 | 116 |
| Moderate high | 85 | 221 | 3 | 4 | 0 | 313 |
| High | 425 | 518 | 6 | 12 | 0 | 961 |
| Assessed acres in Jefferson County | 555 | 855 | 16 | 25 | 0 | 1,452 |
Severity by fire
| Fire | Reported acres | Acres in Jefferson County | Unburned to very low | Low | Moderate low | Moderate high | High |
|---|---|---|---|---|---|---|---|
| Big Rock Fire | 2,142 | 1,452 (of 2,141) | 9 | 52 | 116 | 313 | 961 |
Reconciliation
| Line | Fires | Acres |
|---|---|---|
| Counted fires | 1 | 2,142 |
| Offered to assessment | 1 | 2,142 |
| Complex roll-up residue | — | 0 |
| Fires with severity acres | 1 | 2,142 |
| Awaiting a perimeter | 0 | 0 |
| Awaiting assessment | 0 | 0 |
| Awaiting clear imagery | 0 | 0 |
| Assessment errors | 0 | 0 |
| Smaller than one cell | 0 | 0 |
| Every cell outside Jefferson County | 0 | 0 |
| Assessed acres in Jefferson County | 1 | 1,452 |
| Assessed acres outside Jefferson County | — | 689 |
| Whole perimeter acres | — | 2,141 |
| Burned in from another county | 0 | 0 |
Generated 2026-09-17 00:28 UTC. Severity appears for wildfires in the lower 48 states and the District of Columbia that have a mapped perimeter. Each fire is assessed again every few days while its post-fire imagery can still improve.
Sentinel-2 dNBR assessed through 2026-09-17 00:28 UTC. LANDFIRE LF2024_EVT for ID. 30 m cells.