Post Fire
Active
Las Animas County, Colorado · Discovered August 12, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 46 hours ago · Perimeter mapped 46 hours ago (NIFC WFIGS)
Post Fire
The Post Fire fire has burned 4,335 acres in Las Animas County, Colorado. Crews have reached 90% containment. It has shown no measurable growth in the last 24 hours. Wind at the fire is blowing 9 mph toward the E, with gusts to 19 mph. Air quality near the fire is good (AQI 21). 1 personnel are assigned to the incident.
Is there a fire near me?
Enter any US or Canadian address or town for an instant risk report: nearby fires, wind, smoke, air quality, and evacuation alerts.
Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
New perimeter mapped at 4,343 acres (national perimeter feed)
35 days ago · August 21, 2026Containment rose to 90%
36 days ago · August 20, 2026Containment rose to 80%
37 days ago · August 19, 2026Containment rose to 70%
38 days ago · August 18, 2026Containment rose to 65%
39 days ago · August 17, 2026Containment rose to 55%
39 days ago · August 17, 2026Containment rose to 45%
41 days ago · August 15, 2026Containment rose to 30%
42 days ago · August 14, 2026Grew 129 acres in 30 hours to 4,334 acres
42 days ago · August 14, 2026Containment rose to 25%
43 days ago · August 13, 2026Grew 1,778 acres in 24 hours to 4,205 acres
43 days ago · August 13, 2026Containment dropped to 0% (from 90%)
44 days ago · August 12, 2026Grew 1,427 acres in 15 hours to 2,427 acres
44 days ago · August 12, 2026Fire first reported in official feeds at 1,000 acres
45 days ago · August 12, 2026
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 9/3/2026, 4:39:17 PM | 4,335 acres | 90% |
| 8/20/2026, 9:42:16 PM | 4,343 acres | 90% |
| 8/19/2026, 9:48:41 PM | 4,343 acres | 80% |
| 8/18/2026, 9:20:52 PM | 4,343 acres | 70% |
| 8/17/2026, 9:22:24 PM | 4,343 acres | 65% |
| 8/17/2026, 4:26:42 PM | 4,343 acres | 55% |
| 8/15/2026, 9:26:32 PM | 4,334 acres | 45% |
| 8/14/2026, 10:08:18 PM | 4,334 acres | 30% |
| 8/14/2026, 9:53:18 PM | 4,334 acres | 25% |
| 8/13/2026, 5:02:08 PM | 4,205 acres | 25% |
| 8/13/2026, 4:17:08 PM | 4,205 acres | 0% |
| 8/12/2026, 11:57:03 PM | 2,427 acres | 0% |
| 8/12/2026, 7:22:03 PM | 2,427 acres | - |
| 8/12/2026, 7:17:03 PM | 1,000 acres | - |
| 8/12/2026, 7:17:03 PM | 2,427 acres | - |
| 8/12/2026, 7:12:03 PM | 1,000 acres | - |
| 8/12/2026, 7:12:03 PM | 2,427 acres | - |
| 8/12/2026, 7:07:03 PM | 1,000 acres | - |
| 8/12/2026, 7:07:03 PM | 2,427 acres | - |
| 8/12/2026, 7:02:03 PM | 1,000 acres | - |
Recorded by Fire Nearby each time upstream data 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.