Active Wildfires
Corny Coulee WildfireMontana | 2026
Corny Coulee Wildfire is a wildfire reported in Rosebud, Montana. WFIGS/NIFC last reported about 400 acres. The latest agency update is dated Sep 14, 2026, 1:38 PM ET. NASA satellite heat on the map is a separate observation and is not automatically attributed to this fire.
At a glance
Latest acreage, containment, discovery date and location from WFIGS/NIFC.
Corny Coulee Wildfire map
The fire pin and blue ring mark this incident's reported point. They are not a fire boundary or evacuation zone.
What the sources tell you
This page combines agency incident reporting with separate satellite and map layers. They can update at different times and answer different questions.
WFIGS / NIFC
Use this for the reported fire name, acreage, containment, incident location and agency update time shown on this page.
NASA FIRMS
Heat detections can show recent thermal activity, but they are not an official acreage or containment figure and are not automatically attributed to this incident.
Agency perimeter layer
When a perimeter is available in the map layers, it may have a different timestamp from the incident report. The fire pin itself is only a reported location.
About Corny Coulee Wildfire
WFIGS/NIFC gives Sep 3, 2026, 10:40 AM ET as the reported discovery date and time. The reported cause is listed as "Natural".
- Discovery
- Sep 3, 2026
- Reported cause
- Natural
Source note: assembled automatically by WildfireSignal from WFIGS/NIFC agency records, not on-scene reporting. Details describe the available record, not verified conditions right now. How we use this data.
How this fire has changed
WildfireSignal keeps a short history of the agency values it has observed so you can see how reported acreage and containment have changed over time.
These are differences between agency reports saved at different times, not a measured spread rate. Acreage can decrease after mapping corrections, and unchanged figures do not prove conditions are unchanged.
Range: 400 to 400 acres. Exact values are in the snapshot table.
View saved report history (41)
WildfireSignal starts collecting history when it first observes a fire record. Up to 48 recent observations are shown within the existing 35-day retention window.
| Saved by WildfireSignal | Agency record updated | Reported acres | Containment | Feed presence |
|---|---|---|---|---|
| 400 | Not reported | Not in observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed | ||
| 400 | Not reported | In observed feed |
Fire details
- Reported location
- Rosebud, Montana
- Discovery
- Reported cause
- Natural
- Incident identifier
- 2026-MTLG29-000780
- Reported coordinates
- 46.4757, -106.8138
Optional facts appear only when present in the feed. Agency abbreviations and fuel-model labels are shown as reported, without guessing missing details.
Questions about Corny Coulee Wildfire
Where is Corny Coulee Wildfire?
The official incident record places it in Rosebud, Montana. The map pin is a reported location, not the full fire boundary.
How large is Corny Coulee Wildfire?
The retained record reports 400 acres (approximately 162 hectares). This is reported incident size, not a measurement of current flames, and agencies can revise it.
How contained is Corny Coulee Wildfire?
Containment is not reported in the available record. Containment describes control work intended to stop spread. It is not the percentage extinguished or an all-clear for nearby communities.
When was Corny Coulee Wildfire discovered?
The reported discovery date is Sep 3, 2026, 10:40 AM ET. Discovery time may differ from ignition time; elapsed time does not establish continuous burning.
Where should I check evacuation orders and road closures?
Use local emergency management, the sheriff or other law enforcement, and official fire-agency updates. WildfireSignal does not verify evacuation zones, open roads, or safe travel routes. The official-information section provides starting points; it does not establish that orders are present or absent.
Why can the map and the incident report differ?
Agency records, mapped perimeters and NASA satellite detections are updated on different schedules. Satellite heat near a fire is not automatically attributed to that incident. Older or unavailable data does not establish that an area is safe.