Washington · Active · 24,647 acres
Ptarmigan Fire, Washington
24,647
Acres reported
55%
Contained
+131
Acres since yesterday
Last updated · refreshed every 15 minutes from the NIFC WFIGS feed · awareness only — follow local authorities
Update ·
As of Aug 18, 2026, 09:15 UTC, the Ptarmigan Fire is listed as active at 24,647 acres, 55% contained, in Okanogan County, Washington.
Since Aug 17, 2026, 09:00 UTC: +131 acres.
The most recent mapped perimeter (Aug 17, 2026, 12:30 UTC) covers 24,647 acres; the mapped perimeter has been updated 18 times since the fire began.
No satellite heat detections matched to this incident in the last 24 hours (last one Aug 16, 2026, 20:55 UTC).
Ptarmigan 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
- 24,647 acres
- Containment
- 55%
- Status
- Active
- Discovered
- Jul 17, 2026
- Location
- Okanogan County, Washington
- Origin point
- 48.9420, -120.6095
- Perimeter mapped
- Aug 17, 2026 (21 hours 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).
- Oroville, WA
- Tonasket, WA
- Omak, WA
- Okanogan, WA
- Bellevue, WA
Other fires nearby
- Border 2 Fire
- Luna Fire
- Sisi Fire
- Sinlahekin Fire
Ptarmigan Fire daily history
The largest size and containment reported each UTC day, from our 15-minute archive of the federal feed (first seen Jul 17, 2026, 17:15 UTC).
| Day (UTC) | Reported size | Change | Contained |
|---|---|---|---|
| Aug 18, 2026 | 24,647 acres | +131 | 55% |
| Aug 17, 2026 | 24,516 acres | 0 | 55% |
| Aug 16, 2026 | 24,516 acres | 0 | — |
| Aug 15, 2026 | 24,516 acres | +459 | — |
| Aug 14, 2026 | 24,057 acres | 0 | — |
| Aug 13, 2026 | 24,057 acres | +312 | — |
| Aug 12, 2026 | 23,745 acres | +278 | — |
| Aug 11, 2026 | 23,467 acres | +785 | — |
| Aug 10, 2026 | 22,682 acres | 0 | — |
| Aug 9, 2026 | 22,682 acres | +3,771 | — |
| Aug 8, 2026 | 18,911 acres | +1,632 | — |
| Aug 7, 2026 | 17,279 acres | 0 | — |
| Aug 6, 2026 | 17,279 acres | 0 | — |
| Aug 5, 2026 | 17,279 acres | +1,327 | — |
| Aug 4, 2026 | 15,952 acres | +1,905 | — |
| Aug 3, 2026 | 14,047 acres | 0 | — |
| Aug 2, 2026 | 14,047 acres | +896 | — |
| Aug 1, 2026 | 13,151 acres | −4,849 | — |
| Jul 31, 2026 | 18,000 acres | 0 | — |
| Jul 30, 2026 | 18,000 acres | +4,000 | — |
| Jul 29, 2026 | 14,000 acres | +3,213 | — |
| Jul 28, 2026 | 10,787 acres | +8,087 | — |
| Jul 27, 2026 | 2,700 acres | +200 | — |
| Jul 26, 2026 | 2,500 acres | +900 | — |
| Jul 25, 2026 | 1,600 acres | 0 | — |
| Jul 24, 2026 | 1,600 acres | +410 | — |
| Jul 23, 2026 | 1,190 acres | 0 | — |
| Jul 22, 2026 | 1,190 acres | +1,090 | — |
| Jul 21, 2026 | 100 acres | +60 | — |
| Jul 20, 2026 | 40 acres | 0 | — |
| Jul 19, 2026 | 40 acres | +40 | — |
| Jul 18, 2026 | 0.1 acres | 0 | — |
| Jul 17, 2026 | 0.1 acres | — | — |
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Ptarmigan Fire questions, answered from the data
How big is the Ptarmigan Fire?
As of Aug 18, 2026, 09:15 UTC, the Ptarmigan Fire is reported at 24,647 acres. Since Aug 17, 2026, 09:00 UTC: +131 acres.
Is the Ptarmigan Fire contained?
Not fully. It was 55% contained as of Aug 18, 2026, 09:15 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 Ptarmigan Fire?
The reported point of origin is at 48.9420, -120.6095 in Okanogan County, Washington. Nearest towns: Oroville (53 mi E), Tonasket (56 mi E), Omak (61 mi SE). The map on this page shows the most recent mapped perimeter.
Is the Ptarmigan Fire still burning?
The federal feed still lists it as active as of Aug 18, 2026, 09:15 UTC; no satellite heat detections were matched to it in the last 24 hours.
Where do I find evacuation orders for the Ptarmigan 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 Aug 18, 2026, 09:15 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 →