The Little Giant Fire — Washington’s largest wildfire of 2026 — is nearing full containment at 95%, but the adjacent Sisi Fire continues to burn in the Okanogan-Wenatchee National Forest with only 34% of its perimeter secured, according to the latest InciWeb updates as of October 14, 2026.

Little Giant Fire

The Little Giant Fire ignited July 15, 2026, from a lightning strike in Chelan County on lands managed by the U.S. Forest Service. Growing rapidly through the summer’s hot, dry conditions, it peaked at 172,912 acres — making it the largest fire in Washington this season by a wide margin. Crews have now reached 95% containment, and full suppression is estimated by October 31, 2026.

Firefighters completed chipping operations across the entire fire area in early October, a major milestone in mop-up operations. Resources have been significantly scaled back, with four engines, one crew, and 11 support personnel remaining assigned. The fire information line is active at (509) 776-6953, 8 a.m. to 8 p.m.

Sisi Fire

The Sisi Fire, also burning in the Okanogan-Wenatchee National Forest in Chelan County, ignited August 14, 2026, from lightning. At 4,615 acres, it is considerably smaller than the Little Giant, but steep and rugged terrain has complicated suppression efforts. Crews have achieved 34% containment.

Both fires are burning on USFS-managed lands. Full containment for the combined complex is estimated by October 31, with crews continuing line construction and point protection for structures and resources in the area.

Washington’s Active Fire Landscape

Beyond the Okanogan-Wenatchee complex, Washington continues to contend with several other active incidents:

  • Three Queens Fire (Kittitas County, near Snoqualmie Pass) — 9,575 acres, approximately 33% contained, burning in steep terrain with crews holding strategic lines.
  • Border 2 Fire (Whatcom County) — 9,108 acres, 74% contained.
  • Luna Fire (near Marblemount, Whatcom County) — 8,553 acres, 42% contained, with crews remaining active.
  • High Lava — 2,899 acres, with InciWeb updates within the past 24 hours.
  • King Fire — 3,427 acres, updated within the past week.
  • Goat Fire — 815 acres.

Washington’s ongoing fires total more than 210,000 acres for the season. The Okanogan highlands, North Cascades, and Kittitas County have been particularly hard-hit, with lightning-caused fires igniting across remote wilderness terrain during July and August.

Looking Ahead

October typically brings cooler temperatures and increased precipitation to Washington’s mountain ranges, gradually moderating fire behavior. However, NIFC’s wildfire outlook flags elevated fire potential for the Pacific Northwest through at least October 25, particularly where dry offshore wind patterns can temporarily reduce relative humidity and drive active fire behavior.

Residents near active fire areas should continue to monitor InciWeb and sign up for local county emergency alert systems. Evacuation zones and level changes will be communicated by county emergency managers in real time.