The Flat Fire burning northeast of Sisters has made significant progress toward containment, with officials reporting 67% containment as of Tuesday morning. All evacuation levels across the fire's footprint have been reduced to Level 1 "Be Ready" — encouraging news for Jefferson County residents who have been monitoring the situation closely given the fire's proximity to the county's western edge.

Fire Status Update

The Oregon Department of Forestry issued what it called its final formal update on the Flat Fire, placing the fire's estimated size at 23,346 acres. Despite ongoing hot, dry conditions and a chance of thunderstorms in the area, established fire lines have continued to hold and suppression work is progressing steadily across the incident area.

Crews have transitioned from active suppression to patrol and mop-up operations, working the perimeter to identify and extinguish remaining heat sources and pockets of smoke. Suppression repair efforts are also underway, including fixing dozer lines and installing water bars to reduce erosion ahead of fall rains.

Understanding Evacuation Levels

For residents unfamiliar with Oregon's three-level evacuation system, here is what the current Level 1 designation means:

  • Level 1 – Be Ready: Stay informed, gather emergency supplies, and be prepared to leave on short notice if conditions change.
  • Level 2 – Be Set: Prepare to leave immediately if needed; voluntary departure is encouraged.
  • Level 3 – Go Now: Leave immediately — do not wait for further instructions.

The reduction to Level 1 means affected residents are no longer under imminent threat, but should remain alert. Fire managers caution that conditions can still change quickly if fire weather deteriorates.

Jefferson County Context

Although the Flat Fire is located primarily in Deschutes County, its position northeast of Sisters placed it near Jefferson County's western border. Residents in the Crooked River Ranch area and along the Highway 126 corridor were among those keeping a close eye on conditions throughout the incident.

Resources assigned to the Flat Fire remain in place and ready to assist with any initial attack response if new fires emerge in the area — a prudent measure given that, despite the calendar turning to late October, dry conditions persist across much of Central Oregon.

For ongoing evacuation information, residents can follow the Jefferson County Sheriff's Office on Facebook or visit the Oregon Wildfire Response and Recovery website. With 2.1 million acres burned statewide in 2026, the region is looking forward to a wet winter and a fresh start heading into next year.