Burn severity · Umatilla County 2026

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Acres by severity and land cover Forest Range (shrubland) Grassland Other Unclassified Acres in Umatilla County
Unburned to very low 919 44 792 263 0 2,019
Low 234 50 349 719 0 1,351
Moderate low 268 96 693 310 0 1,368
Moderate high 352 311 1,194 171 0 2,029
High 564 1,232 3,951 3,354 0 9,102
Assessed acres in Umatilla County 2,336 1,734 6,979 4,818 0 15,867
Severity by fire
Fire Reported acres Acres in Umatilla County Unburned to very low Low Moderate low Moderate high High
Lower Dry Creek Mutual Aid Fire 5,000 8,097 1,079 1,039 752 521 4,706
North Cayuse Fire 4,887 4,887 378 159 383 1,159 2,808
Old Emigrant Fire 1,495 1,428 10 7 32 70 1,308
Horse Ridge Fire 860 860 388 111 131 137 92
Ninemile Fire 17 407 110 22 47 105 123
Bradley Flats Fire 227 137 54 8 11 15 49
Baldy Fire 60 39 0 2 6 17 14
82 Mutual Aid Fire 10 10 0 1 4 4 1
Pack Rat Fire 3 2 0 1 1 0 0
Hagen Fire burned in from Union County 61,380 59,164 (of 61,376) 27,315 3,010 3,994 6,581 18,265
Paradise Fire burned in from Columbia County 9,656 4,753 (of 9,658) 2,255 129 157 365 1,847
Twin Sisters Fire burned in from Walla Walla County 8,262 4,298 (of 8,114) 83 495 1,543 1,129 1,049
Hatch Grade Hb 1498 Request Fire burned in from Walla Walla County 9,023 3,499 (of 9,520) 17 139 306 173 2,864
Fires awaiting assessment
(1)
Fire Reported acres Whole perimeter acres Reason
Goad Fire 1 — Awaiting a perimeter
Reconciliation
Line Fires Acres
Counted fires 10 12,560
Offered to assessment 10 12,560
Complex roll-up residue — 0
Fires with severity acres 9 12,559
Awaiting a perimeter 1 1
Awaiting assessment 0 0
Awaiting clear imagery 0 0
Assessment errors 0 0
Smaller than one cell 0 0
Every cell outside Umatilla County 0 0
Assessed acres in Umatilla County 9 15,867
Assessed acres outside Umatilla County — 0
Whole perimeter acres — 15,867
Burned in from another county 4 71,715

Generated 2026-10-10 01:19 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 2026-10-10 01:19 UTC. LANDFIRE LF2024_EVT for OR. 30 m cells.