Flat Fire (2025-08-21)
23,346 acre wildfire
(97% contained)
InciWeb page:
OR95S Flat Fire
Status:
Active
Size:
23,346 acre
Contained:
97%
Flat Fire Live Perimeter Growth
Flat Fire Fire Growth History
Flat Fire Containment History
Flat Fire Fire Alert Timeline
Aug 31, 2025
Other
Flat Fire reaches 39% containment at 23,346 acres. Control lines hold strong despite Red Flag Warning conditions. Suppression repair work begins on northern edge as crews focus on increasing containment.
Sources:
Flat Fire Update for August 31, 2025 | Central Oregon Fire Information
(2025-08-31)
Aug 30, 2025
Other
Containment increases to 32% at 23,380 acres. Established control lines tested and held strong during critical fire weather conditions. Level 1 and 2 evacuations remain in effect.
Sources:
Flat Fire Update for August 30, 2025 | Central Oregon Fire Information
(2025-08-30)
Aug 29, 2025
Other
Flat Fire containment doubles to 13% with size remaining at 23,380 acres. Downgraded evacuation levels allow residents to return home as crews begin sending resources back to home communities.
Sources:
Flat Fire Morning Update | August 29, 2025 | Central Oregon Fire Information
(2025-08-29)
Aug 28, 2025
Other
Flat Fire grows to 23,380 acres with 7% containment under Red Flag Warning. Crews prepare for hot, dry conditions and gusty winds while extending mop-up operations up to 300 feet from control lines.
Sources:
Flat Fire Morning Update | August 28, 2025 | Central Oregon Fire Information
(2025-08-28)
Aug 28, 2025
Evacuation level 3
All Level 3 evacuations dropped for the first time since fire began. Remaining Level 3 areas reduced to Level 2, multiple Level 2 areas downgraded to Level 1 as fire lines hold at 7% containment.
Aug 27, 2025
Other
Fire reaches 23,261 acres with 7% containment as firefighters strengthen lines ahead of critical weather. Crews expand mop-up operations 150 feet inside perimeter, preparing for challenging wind conditions.
Sources:
Flat Fire Morning Update | August 27, 2025 | Central Oregon Fire Information
(2025-08-27)
Aug 26, 2025
Other
Flat Fire containment increases to 7% with size at 21,971 acres. Fifth home confirmed destroyed as crews extend mop-up operations 50-100 feet inside perimeter and focus on structure protection.
Aug 25, 2025
Other
First containment achieved at 5% with fire at 21,971 acres. Four homes and six outbuildings confirmed destroyed. Crews make progress on southern perimeter, stopping fire's advance toward Sisters.
Aug 24, 2025
Other
Flat Fire reaches 21,971 acres with 0% containment under Red Flag Warning. Four homes and six outbuildings destroyed with nearly 4,000 structures threatened. Over 800 firefighters deployed.
Aug 23, 2025
Evacuation level 3
Flat Fire explodes to 18,000 acres as it pushes toward Sisters. Level 3 evacuations expanded in Deschutes County including areas northeast of Sisters. Fire remains at 0% containment.
Aug 23, 2025
Other
Oregon Department of Forestry assumes unified command with State Fire Marshal Red Team at 6:00 PM. Fire threatens structures as crews work in critical weather conditions with challenging terrain.
Sources:
Flat Fire Evening Update August 23, 2025 | Central Oregon Fire Information
(2025-08-23)
Aug 22, 2025
State of emergency
Governor Kotek invokes Emergency Conflagration Act for Flat Fire as it grows to 3,300 acres. State Fire Marshal mobilizes three structural task forces and Red Incident Management Team.
Sources:
Kotek invokes Emergency Conflagration Act for Flat Fire in Jefferson County - OPB
(2025-08-22)
Post - Newsroom
(2025-08-22)
Aug 22, 2025
Evacuation level 3
Deschutes County issues evacuation notices as fire crosses county line near Whychus Creek. Level 3 orders for Whychus Creek area west to Stevens Canyon, Level 2 for Wilt Road areas.
Aug 21, 2025
Evacuation level 3
Level 1, 2, and 3 evacuation orders issued for areas near Lake Billy Chinook as Flat Fire ignites west of Culver at 4:29 PM. Fire rapidly spreads due to hot, windy conditions.
Flat Fire Fire Alert Timeline
Aug 27, 2025
Other
Flat Fire now 100% lined as crews move to mop-up phase. Fire grows to 23,261 acres with 7% containment. No new fire growth reported for two days as firefighters focus on perimeter control and structure protection.
Aug 26, 2025
Other
Flat Fire containment increases to 7% with size remaining at 21,971 acres. Fifth home confirmed destroyed, bringing total to 5 homes lost. Fire crews expand mop-up operations 50-100 feet inside perimeter.
Aug 25, 2025
Other
First containment achieved on Flat Fire at 5%, remaining at 21,971 acres. Four homes confirmed destroyed with 6 other structures lost. Community meeting scheduled at Sisters High School as evacuation levels remain in effect.
Aug 24, 2025
Other
Flat Fire grows to 21,971 acres with 0% containment under Red Flag Warning conditions. Four homes and 6 outbuildings destroyed with nearly 4,000 structures threatened. Over 800 firefighters deployed to Sisters area.
Aug 23, 2025
Evacuation level 3
Flat Fire explodes to 18,000 acres as it pushes toward Sisters. Level 3 evacuations expanded in Deschutes County including areas northeast of Sisters. Fire remains 0% contained.
Aug 23, 2025
Other
Oregon Department of Forestry assumes unified command with State Fire Marshal Red Team at 6:00 PM. Fire threatens structures as crews work in critical weather conditions with steep terrain challenges.
Sources:
Flat Fire Evening Update August 23, 2025 | Central Oregon Fire Information
(2025-08-23)
Aug 22, 2025
Other
Unified command established between Oregon State Fire Marshal Red Team and Central Oregon Interagency Management Team 3. Fire creates unhealthy air quality conditions across Central Oregon.
Sources:
Flat Fire Update - August 23, 2025 | Central Oregon Fire Information
(2025-08-23)
Aug 22, 2025
Evacuation level 3
Deschutes County issues evacuation notices as fire crosses county line near Whychus Creek. Level 3 orders for Whychus Creek area west to Stevens Canyon, Level 2 for Wilt Road areas.
Aug 22, 2025
State of emergency
Governor Kotek invokes Emergency Conflagration Act for Flat Fire as it grows to 3,300 acres. State Fire Marshal mobilizes three structural task forces and Red Incident Management Team.
Sources:
Kotek invokes Emergency Conflagration Act for Flat Fire in Jefferson County - OPB
(2025-08-22)
Post - Newsroom
(2025-08-22)
Aug 21, 2025
Evacuation level 3
Level 1, 2, and 3 evacuation orders issued for areas near Lake Billy Chinook as Flat Fire ignites west of Culver at 4:29 PM. Fire rapidly spreads due to hot, windy conditions.
Flat Fire Fire Alert Timeline
Aug 23, 2025
Evacuation level 3
Flat Fire explodes to 18,000 acres as it pushes toward Sisters. Level 3 evacuations expanded in Deschutes County including areas northeast of Sisters. Fire remains 0% contained.
Aug 22, 2025
Other
Unified command established between Oregon State Fire Marshal Red Team and Central Oregon Interagency Management Team 3. Fire creates unhealthy air quality conditions across Central Oregon.
Aug 22, 2025
Evacuation level 3
Deschutes County issues evacuation notices as fire crosses county line near Whychus Creek. Level 3 orders for Whychus Creek area west to Stevens Canyon, Level 2 for Wilt Road areas.
Aug 22, 2025
State of emergency
Governor Kotek invokes Emergency Conflagration Act for Flat Fire as it grows to 3,300 acres. State Fire Marshal mobilizes three structural task forces and Red Incident Management Team.
Sources:
Kotek invokes Emergency Conflagration Act for Flat Fire in Jefferson County - OPB
(2025-08-22)
Post - Newsroom
(2025-08-22)
Aug 21, 2025
Evacuation level 3
Level 1, 2, and 3 evacuation orders issued for areas near Lake Billy Chinook as Flat Fire ignites west of Culver. Fire started at 4:29 PM and rapidly spread due to hot, windy conditions.
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Places Near Flat Fire
Sisters, Oregon, United States
Culver, Oregon, United States
Terrebonne, Oregon, United States
Redmond, Oregon, United States
Metolius, Oregon, United States
Madras, Oregon, United States
Bend, Oregon, United States
Warm Springs, Oregon, United States
Deschutes River Woods, Oregon, United States
Sunriver, Oregon, United States
Prineville, Oregon, United States
Three Rivers, Oregon, United States
La Pine, Oregon, United States
Dufur, Oregon, United States
Mount Hood Village, Oregon, United States
Mill City, Oregon, United States
The Dalles, Oregon, United States
Odell, Oregon, United States
Chenoweth, Oregon, United States
Dallesport, Washington, United States
Oakridge, Oregon, United States
Lyons, Oregon, United States
Moro, Oregon, United States
Estacada, Oregon, United States
Hood River, Oregon, United States
Bingen, Washington, United States
Sandy, Oregon, United States
White Salmon, Washington, United States
Fossil, Oregon, United States
Sweet Home, Oregon, United States
Cascade Locks, Oregon, United States
North Bonneville, Washington, United States
Lacomb, Oregon, United States
Stevenson, Washington, United States
Carson, Washington, United States
Molalla, Oregon, United States
Mulino, Oregon, United States
Beavercreek, Oregon, United States
Stayton, Oregon, United States
Sublimity, Oregon, United States