According to IDMC's Internal Displacement Updates, between 1 August and 31 August 2026 the United States recorded 272,187 disaster-driven internal displacements across 27 events, counting one figure per event. The alert fired because this figure exceeded the fixed threshold of 50,000 displacements in a calendar month, as the country has only 4 months of record and a comparison against its own monthly history requires 6. The highest event figures were 150,707 for the Old Trails Fire in Spokane, Washington, reported by FEMA, and 42,000 for the Hawk Fire in Washoe County, Nevada, reported by local authorities. Other wildfire events recorded in the period include the Autumn Lane Fire in Washington with 18,482 displacements and the Bug Fire in Nevada with 13,283, both reported by FEMA.
| Rule | Displacement in a month against the country's own record |
| Period | 2026-08-01 to 2026-08-31 |
| Displacement in the month | 272,187 |
| Events in the month | 27 |
| Months of history compared | 4 |
| Judged against | an absolute floor of 50,000. Fired on: abs_floor. |
| Detected | 13 October 2026, run 19 |