Greenbriar CDEF RX
The Greenbriar CDEF RX was reported on February 22, 2026 in Williamson County, Illinois and has burned 265 acres.
- Size
- 265 acres
- Contained
- Not reported
- Discovered
- February 22, 2026
Map
No perimeter has been mapped for this fire; the map shows its point of origin. Point of origin 37.738, -89.102.
The incident
- Size
- 265 acres
- Containment
- Not reported
- Discovered
- February 22, 2026 at 8:10 AM CST
- Cause
- Undetermined
- County
- Williamson County
- State
- Illinois
- Protecting agency
- USFWS
- Jurisdiction
- USFWS
- Land ownership at origin
- USFWS
- Incident type
- Prescribed fire
- Unique fire identifier
- 2026-ILCOR-260108
- IRWIN identifier
- 9BD45661-7DE0-4F5B-9AD1-E6E4522640F8
Weather at the fire
- Wind up to 9 mph from the north
- Relative humidity as low as 65%
- High of 81°F
National Weather Service hourly forecast for the fire’s point of origin, next 24 hours.
Alerts in force
Red Flag Warnings and Fire Weather Watches covering the fire's point of origin.
No Red Flag Warning or Fire Weather Watch is in force at the fire.
Smoke
NOAA’s Hazard Mapping System analysts drew light smoke over the fire’s origin in satellite imagery today (Mon, 10:00 AM CDT to Mon, 12:00 PM CDT).
NOAA’s smoke model forecasts near-surface smoke at the origin peaking at 0.8 µg/m³ around Mon, 4:00 PM CDT over the next 48 hours.
Nearby
Illinois wildfires today Wildfires of 2026 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 September 9, 2026 at 9:47 AM CDT. Identifier 2026-ILCOR-260108.