Idaho · incident record
Duncan Fire, Idaho
16,362
Acres reported
—
Contained
0
Acres since yesterday
Last updated · refreshed every 15 minutes from the NIFC WFIGS feed · awareness only — follow local authorities
Update ·
As of Jul 27, 2026, 19:45 UTC, the Duncan Fire is no longer listed in the federal active-fire feed at 16,362 acres, in Idaho.
No change in reported size since Jul 26, 2026, 19:45 UTC.
The most recent mapped perimeter (Jul 25, 2026, 22:18 UTC) covers 16,362 acres; the mapped perimeter has been updated 5 times since the fire began.
No satellite heat detections matched to this incident in the last 24 hours (last one Jul 25, 2026, 03:49 UTC).
It was last present in the feed Jul 27, 2026, 19:45 UTC; the largest size reported was 16,362 acres. This page stays up as a record of the incident.
Duncan 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
- 16,362 acres
- Containment
- not reported
- Status
- Not in feed (last seen Jul 27, 2026)
- Discovered
- Jul 24, 2026
- Location
- Idaho
- Origin point
- 42.5793, -116.0878
- Perimeter mapped
- Jul 25, 2026 (23 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).
- Mountain Home, ID
- Glenns Ferry, ID
- Kuna, ID
- Buhl, ID
- Nampa, ID
Other fires nearby
- Gerdie Fire
Duncan Fire daily history
The largest size and containment reported each UTC day, from our 15-minute archive of the federal feed (first seen Jul 24, 2026, 02:15 UTC).
| Day (UTC) | Reported size | Change | Contained |
|---|---|---|---|
| Jul 27, 2026 | 16,362 acres | 0 | — |
| Jul 26, 2026 | 16,362 acres | 0 | — |
| Jul 25, 2026 | 16,362 acres | +7,362 | — |
| Jul 24, 2026 | 9,000 acres | — | — |
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Duncan Fire questions, answered from the data
How big is the Duncan Fire?
As of Jul 27, 2026, 19:45 UTC, the Duncan Fire is reported at 16,362 acres. No change in reported size since Jul 26, 2026, 19:45 UTC.
Is the Duncan Fire contained?
Containment has not been reported for the Duncan Fire in the federal feed as of Jul 27, 2026, 19:45 UTC.
Where is the Duncan Fire?
The reported point of origin is at 42.5793, -116.0878 in Idaho. Nearest towns: Mountain Home (43 mi NE), Glenns Ferry (48 mi NE), Kuna (65 mi N). The map on this page shows the most recent mapped perimeter.
Is the Duncan Fire still burning?
It is no longer in the federal active-fire feed; it was last listed Jul 27, 2026, 19:45 UTC. Fires drop out of the feed when the incident is closed or handed to local management, not necessarily when every ember is out.
Where do I find evacuation orders for the Duncan Fire?
From the county sheriff and local emergency management, not from this site. Check the official Idaho sources on our Idaho 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 Jul 27, 2026, 19:45 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 →