Washington · Active · 166,007 acres
Sinlahekin Fire, Washington
166,007
Acres reported
96%
Contained
0
Acres since yesterday
Last updated · refreshed every 15 minutes from the NIFC WFIGS feed · awareness only — follow local authorities
Update ·
As of Oct 2, 2026, 11:15 UTC, the Sinlahekin Fire is listed as active at 166,007 acres, 96% contained, in Okanogan County, Washington.
Since Oct 1, 2026, 11:15 UTC: no change in size, containment +2 pts.
The most recent mapped perimeter (Sep 20, 2026, 14:00 UTC) covers 166,007 acres; the mapped perimeter has been updated 60 times since the fire began.
No satellite heat detections matched to this incident in the last 24 hours (last one Sep 2, 2026, 21:13 UTC).
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Sinlahekin Fire map
The most recent mapped perimeter (solid) and the previous day's perimeter (dashed), with the reported point of origin.
Latest perimeter Previous perimeter · Perimeters come from the WFIGS interagency perimeter service and are usually mapped once a day; the mapped area can differ from the reported acreage.
Key facts
- Size
- 166,007 acres
- Containment
- 96%
- Status
- Active
- Discovered
- Jul 26, 2026
- Location
- Okanogan County, Washington
- Origin point
- 48.7046, -119.6931
- Peak reported size
- 166,290 acres
- Perimeter mapped
- Sep 20, 2026 (12 days ago)
- Satellite heat, 24 h
- none matched
Nearest towns
Distances are from the reported point of origin, not from the fire’s edge (see the perimeter map for the current extent).
- Tonasket, WA
- Oroville, WA
- Omak, WA
- Okanogan, WA
- Brewster, WA
Other fires nearby
Sinlahekin Fire timeline
Day by day: the largest size and containment reported each UTC day, from our 15-minute archive of the federal feed (first seen Jul 26, 2026, 21:30 UTC).
| Day (UTC) | Reported size | Change | Contained |
|---|---|---|---|
| Oct 2, 2026 | 166,007 acres | 0 | 96% |
| Oct 1, 2026 | 166,007 acres | 0 | 94% |
| Sep 30, 2026 | 166,007 acres | 0 | 93% |
| Sep 29, 2026 | 166,007 acres | 0 | 93% |
| Sep 28, 2026 | 166,007 acres | 0 | 93% |
| Sep 27, 2026 | 166,007 acres | 0 | 93% |
| Sep 26, 2026 | 166,007 acres | 0 | 93% |
| Sep 25, 2026 | 166,007 acres | 0 | 93% |
| Sep 24, 2026 | 166,007 acres | 0 | 93% |
| Sep 23, 2026 | 166,007 acres | +2 | 92% |
| Sep 22, 2026 | 166,005 acres | 0 | 92% |
| Sep 21, 2026 | 166,005 acres | −7 | 92% |
| Sep 20, 2026 | 166,012 acres | 0 | 92% |
| Sep 19, 2026 | 166,012 acres | 0 | 84% |
| Sep 18, 2026 | 166,012 acres | 0 | 84% |
| Sep 17, 2026 | 166,012 acres | +12 | 84% |
| Sep 16, 2026 | 166,000 acres | −26 | 81% |
| Sep 15, 2026 | 166,026 acres | 0 | 77% |
| Sep 14, 2026 | 166,026 acres | 0 | 76% |
| Sep 13, 2026 | 166,026 acres | +5 | 76% |
| Sep 12, 2026 | 166,021 acres | 0 | 76% |
| Sep 11, 2026 | 166,021 acres | +3 | 76% |
| Sep 10, 2026 | 166,018 acres | −66 | 76% |
| Sep 9, 2026 | 166,084 acres | −30 | 76% |
| Sep 7, 2026 | 166,114 acres | 0 | 52% |
| Sep 6, 2026 | 166,114 acres | −37 | 52% |
| Sep 5, 2026 | 166,151 acres | −139 | 44% |
| Sep 4, 2026 | 166,290 acres | 0 | 38% |
| Sep 3, 2026 | 166,290 acres | +11,063 | 38% |
| Aug 25, 2026 | 155,227 acres | +18 | 53% |
| Aug 24, 2026 | 155,209 acres | +729 | 53% |
| Aug 23, 2026 | 154,480 acres | +182 | 47% |
| Aug 22, 2026 | 154,298 acres | 0 | 47% |
| Aug 21, 2026 | 154,298 acres | +48 | 47% |
| Aug 20, 2026 | 154,250 acres | +72 | 47% |
| Aug 19, 2026 | 154,178 acres | +335 | 44% |
| Aug 18, 2026 | 153,843 acres | +1,161 | 44% |
| Aug 17, 2026 | 152,682 acres | 0 | 44% |
| Aug 16, 2026 | 152,682 acres | 0 | — |
| Aug 15, 2026 | 152,682 acres | −239 | — |
| Aug 14, 2026 | 152,921 acres | 0 | — |
| Aug 13, 2026 | 152,921 acres | +2,680 | — |
| Aug 12, 2026 | 150,241 acres | +2,526 | — |
| Aug 11, 2026 | 147,715 acres | +6,304 | — |
| Aug 10, 2026 | 141,411 acres | +3,800 | — |
| Aug 9, 2026 | 137,611 acres | +10,671 | — |
| Aug 8, 2026 | 126,940 acres | +133 | — |
| Aug 7, 2026 | 126,807 acres | +6,115 | — |
| Aug 6, 2026 | 120,692 acres | +3,614 | — |
| Aug 5, 2026 | 117,078 acres | +14,144 | — |
| Aug 4, 2026 | 102,934 acres | +29,140 | — |
| Aug 3, 2026 | 73,794 acres | +37,526 | — |
| Aug 2, 2026 | 36,268 acres | +9,477 | — |
| Aug 1, 2026 | 26,791 acres | +15,475 | — |
| Jul 31, 2026 | 11,316 acres | +2,590 | — |
| Jul 30, 2026 | 8,726 acres | +5,736 | — |
| Jul 29, 2026 | 2,990 acres | 0 | — |
| Jul 28, 2026 | 2,990 acres | +2,047 | — |
| Jul 27, 2026 | 943 acres | +343 | — |
| Jul 26, 2026 | 600 acres | — | — |
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Sinlahekin Fire questions, answered from the data
How big is the Sinlahekin Fire?
As of Oct 2, 2026, 11:15 UTC, the Sinlahekin Fire is reported at 166,007 acres (peak reported size 166,290 acres). Since Oct 1, 2026, 11:15 UTC: no change in size, containment +2 pts.
Is the Sinlahekin Fire contained?
Not fully. It was 96% contained as of Oct 2, 2026, 11:15 UTC. Containment is the share of the fire's edge that has a control line; it is reported by the incident team and can lag the ground situation.
Where is the Sinlahekin Fire?
The reported point of origin is at 48.7046, -119.6931 in Okanogan County, Washington. Nearest towns: Tonasket (12 mi E), Oroville (20 mi NE), Omak (22 mi S). The map on this page shows the most recent mapped perimeter.
Is the Sinlahekin Fire still burning?
The federal feed still lists it as active as of Oct 2, 2026, 11:15 UTC; no satellite heat detections were matched to it in the last 24 hours.
What is the timeline of the Sinlahekin Fire?
The Sinlahekin Fire was first listed in the federal feed Jul 26, 2026, 21:30 UTC (reported discovery date Jul 26, 2026). As of Oct 2, 2026, 11:15 UTC it is still listed at 166,007 acres, 96% contained. The timeline table on this page shows the size and containment reported each UTC day across 60 days of archive.
Where do I find evacuation orders for the Sinlahekin Fire?
From the county sheriff and local emergency management, not from this site. Check the official Washington sources on our Washington page and your county’s alert system. FireRiskHere is for awareness only.
How current is this page?
The numbers come from the National Interagency Fire Center's WFIGS incident feed and the WFIGS perimeter service, refreshed every 15 minutes, plus NASA FIRMS satellite detections hourly. This page was last updated Oct 2, 2026, 11:15 UTC. Acreage and containment are what the incident team reports and can lag by hours.
About this page
This page is generated automatically for every wildfire whose reported size reaches 1,000 acres, from FireRiskHere’s archive of the National Interagency Fire Center’s WFIGS incident feed (captured every 15 minutes), the WFIGS interagency perimeter service, and NASA FIRMS satellite detections. It stays online after the fire is contained as a record of the incident. Nothing here is an official notice — for evacuation orders and road closures follow your county sheriff and local emergency management. How the site works →