Sieben Fire
Active
Lewis and Clark County, Montana · Discovered August 22, 2026
53 acres
Size
-
Contained
-
24h growth
-
Personnel
Source: NIFC/IRWIN (interagency) · Last upstream update 26 min ago
Current situation
Sieben Fire
Air quality · Moderate
AQI 51
The Sieben Fire fire has burned 53 acres in Lewis and Clark County, Montana. Officials have not reported a containment figure yet. Air quality near the fire is moderate (AQI 51).
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Growth & containment history
| Recorded | Size | Contained |
|---|---|---|
| 8/22/2026, 2:21:41 PM | 53 acres | - |
| 8/22/2026, 2:54:25 AM | 18 acres | - |
| 8/22/2026, 2:02:01 AM | 15 acres | - |
History recorded by Fire Nearby each time upstream size or containment changes.
About this data
Fire Nearby aggregates official incident data and shows exactly when each value was last updated. For evacuation decisions, always follow instructions from local emergency officials and check county emergency management channels.