Wyoming · Contained · 7,285 acres
Lumin Fire, Wyoming
7,285
Acres reported
100%
Contained
0
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 Lumin Fire is listed as contained at 7,285 acres, 100% contained, in Sheridan County, Wyoming.
No change in reported size or containment since Aug 17, 2026, 09:00 UTC.
The most recent mapped perimeter (Aug 3, 2026, 01:13 UTC) covers 7,285 acres; the mapped perimeter has been updated 4 times since the fire began.
No satellite heat detections matched to this incident in the last 24 hours (last one Aug 1, 2026, 21:11 UTC).
Lumin 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
- 7,285 acres
- Containment
- 100%
- Status
- Contained
- Discovered
- Jul 31, 2026
- Location
- Sheridan County, Wyoming
- Origin point
- 44.8235, -106.4085
- Perimeter mapped
- Aug 3, 2026 (15 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).
- Sheridan, WY
- Buffalo, WY
- Lame Deer, MT
- Gillette, WY
Other fires nearby
- SR - Buffalo Fire
- South Fork Badger Fire
- Cat Creek Fire
- Park Fire
- West Spring Creek Fire
- Montgomery Draw Fire
Lumin Fire daily history
The largest size and containment reported each UTC day, from our 15-minute archive of the federal feed (first seen Jul 31, 2026, 22:00 UTC).
| Day (UTC) | Reported size | Change | Contained |
|---|---|---|---|
| Aug 18, 2026 | 7,285 acres | 0 | 100% |
| Aug 17, 2026 | 7,285 acres | 0 | 100% |
| Aug 16, 2026 | 7,285 acres | 0 | — |
| Aug 15, 2026 | 7,285 acres | 0 | — |
| Aug 14, 2026 | 7,285 acres | 0 | — |
| Aug 13, 2026 | 7,285 acres | 0 | — |
| Aug 12, 2026 | 7,285 acres | 0 | — |
| Aug 11, 2026 | 7,285 acres | 0 | — |
| Aug 10, 2026 | 7,285 acres | 0 | — |
| Aug 9, 2026 | 7,285 acres | 0 | — |
| Aug 8, 2026 | 7,285 acres | 0 | — |
| Aug 7, 2026 | 7,285 acres | 0 | — |
| Aug 6, 2026 | 7,285 acres | 0 | — |
| Aug 5, 2026 | 7,285 acres | 0 | — |
| Aug 4, 2026 | 7,285 acres | 0 | — |
| Aug 3, 2026 | 7,285 acres | +65 | — |
| Aug 2, 2026 | 7,220 acres | +20 | — |
| Aug 1, 2026 | 7,200 acres | +5,200 | — |
| Jul 31, 2026 | 2,000 acres | — | — |
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Lumin Fire questions, answered from the data
How big is the Lumin Fire?
As of Aug 18, 2026, 09:15 UTC, the Lumin Fire is reported at 7,285 acres. No change in reported size or containment since Aug 17, 2026, 09:00 UTC.
Is the Lumin Fire contained?
Yes — the Lumin Fire was reported 100% contained as of Aug 18, 2026, 09:15 UTC. Containment means a control line surrounds the fire; interior areas can keep burning for days.
Where is the Lumin Fire?
The reported point of origin is at 44.8235, -106.4085 in Sheridan County, Wyoming. Nearest towns: Sheridan (27 mi W), Buffalo (36 mi SW), Lame Deer (57 mi N). The map on this page shows the most recent mapped perimeter.
Is the Lumin Fire still burning?
The federal feed still lists it as contained 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 Lumin Fire?
From the county sheriff and local emergency management, not from this site. Check the official Wyoming sources on our Wyoming 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 →