Flat Fire
The Flat Fire was reported on August 21, 2025 in Jefferson County, Oregon and burned 23,346 acres. It is 97 percent contained. The cause is listed as human.
- Size
- 23,346 acres
- Contained
- 97%
- Discovered
- August 21, 2025
- Personnel
- 4
Radar
Reflectivity now over Flat Fire. Open it to see fires and the fire weather outlook on the map.
Radar mosaic and map layers from NOAA MRMS and NOAA Storm Prediction Center. Boundaries from the Iowa Environmental Mesonet.
Map
Perimeter mapped August 23, 2025 at 6:34 AM PDT, 23,346 acres (mixed methods). Point of origin 44.513, -121.355.
The incident
- Size
- 23,346 acres
- Containment
- 97%
- Discovered
- August 21, 2025 at 4:29 PM PDT
- Cause
- Human
- Location
- 4 Miles NE from Sisters, OR
- County
- Jefferson County
- State
- Oregon
- Nearest city reported
- Culver
- Protecting agency
- DOF
- Land ownership at origin
- Private
- Personnel assigned
- 4
- Incident management
- Type 5 IC, Type 1 Incident
- Primary fuel
- Tall Grass (2.5 feet)
- Estimated cost to date
- $29,083,467
- Incident type
- Wildfire
- Unique fire identifier
- 2025-OR955S-000863
- IRWIN identifier
- 2B333622-3B80-44E0-BD0E-11191C1C7219
Growth
Mapped area at the last perimeter of each day, from August 22, 2025 (3,386 acres) to August 30, 2025 (23,346 acres). The largest one-day growth was 18,585 acres, mapped August 23, 2025.
| Day | Acres | Change |
|---|---|---|
| August 22, 2025 | 3,386 | |
| August 23, 2025 | 21,971 | +18,585 |
| August 25, 2025 | 21,972 | +1 |
| August 26, 2025 | 23,339 | +1,367 |
| August 27, 2025 | 23,380 | +41 |
| August 28, 2025 | 23,380 | 0 |
| August 29, 2025 | 23,380 | 0 |
| August 30, 2025 | 23,346 | -34 |
Weather in the area
This fire is no longer listed as current. The forecast for Culver, OR covers the area today.
Nearby
Oregon wildfires today Wildfires of 2025 All current fires
Incident record from the National Interagency Fire Center’s Wildland Fire Interagency Geospatial Services (WFIGS), as the incident’s managers report it; last updated December 11, 2025 at 9:56 AM PST. Identifier 2025-OR955S-000863.