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| Acres by severity and land cover |
Forest |
Range (shrubland) |
Grassland |
Other |
Unclassified |
Acres in Lassen County |
|
Unburned to very low
|
17 |
384 |
14 |
1 |
0 |
416 |
|
Low
|
12 |
93 |
1 |
0 |
0 |
106 |
|
Moderate low
|
8 |
21 |
0 |
0 |
0 |
30 |
|
Moderate high
|
8 |
2 |
0 |
0 |
0 |
9 |
|
High
|
1 |
0 |
0 |
0 |
0 |
1 |
|
Assessed acres in Lassen County
|
47 |
499 |
15 |
1 |
0 |
562 |
Severity by fire
| Fire |
Reported acres |
Acres in Lassen County |
Unburned to very low |
Low |
Moderate low |
Moderate high |
High |
|
1-4 Fire
|
259 |
260
|
213 |
35 |
8 |
3 |
0 |
|
R-3 Fire
|
500 |
144
|
140 |
4 |
0 |
0 |
0 |
|
Byers Fire
|
106 |
107
|
31 |
60 |
15 |
1 |
0 |
|
Clark Fire
|
50 |
50
|
31 |
7 |
6 |
5 |
1 |
Fires awaiting assessment
(5)
Reconciliation
| Line |
Fires |
Acres |
|
Counted fires
|
9 |
1,112 |
|
Offered to assessment
|
9 |
1,112 |
|
Complex roll-up residue
|
— |
0 |
|
Fires with severity acres
|
4 |
915 |
|
Awaiting a perimeter
|
5 |
197 |
|
Awaiting assessment
|
0 |
0 |
|
Awaiting clear imagery
|
0 |
0 |
|
Assessment errors
|
0 |
0 |
|
Smaller than one cell
|
0 |
0 |
|
Every cell outside Lassen County
|
0 |
0 |
|
Assessed acres in Lassen County
|
4 |
562 |
|
Assessed acres outside Lassen County
|
— |
0 |
|
Whole perimeter acres
|
— |
562 |
|
Burned in from another county
|
0 |
0 |
Generated 2026-09-17 20:25 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 20:25 UTC. LANDFIRE LF2024_EVT for CA. 30 m cells.