Sisi Fire (Washington)

Burning across timber with grass and understory in Chelan, Washington, the active Sisi Fire has now been on the landscape for 23 days since starting naturally on August 14, averaging approximately 110 acres of growth per day. Located 10 miles northwest of Stehekin, the federal incident spans 2,521 acres and is managed by a Complex Incident Management Team with 92 personnel. Satellites are picking up a moderate heat signature from the 5 detections captured over the last 48 hours, reflecting the current behavior on the ground characterized by moderate, backing, creeping, and smoldering activity.

Operations on the USFS-managed land have reached 11 percent containment under a Type 1 Incident command, accumulating a total cost of $2,097,559. This incident unfolds against the backdrop of the region's typical fire season running from June to October. Nationally, the broader context shows that 3,178,795 hectares have burned so far in 2026, marking a figure that is 42% below the two-decade average.