Washington’s Little Giant Fire has destroyed 40 structures and is still burning

The Little Giant Fire burning northwest of Leavenworth, Washington, has destroyed 40 structures and is still only 81% contained, according to the National Interagency Coordination Center’s situation report dated September 24. The fire has now covered 172,879 acres of the Okanogan-Wenatchee National Forest since a lightning strike started it in the Chiwawa River valley on July 15. Containment has barely moved in more than two weeks, and the U.S. Forest Service still projects full containment will not arrive until October 1.

Two months of growth through the Chiwawa drainage

The fire began small, reaching nearly 23,000 acres by July 27 before exploding past 50,000 acres in early August. It kept climbing through the summer: 122,401 acres by August 5, 138,475 acres by August 20, then 171,500 acres by September 7. By the time containment lines started holding in late summer, the fire had already burned through terrain steep and remote enough that crews could not attack much of it directly, and the acreage growth from September 7 to September 24 slowed to barely 1,400 acres.

Early August brought the fire’s most dramatic move, when it jumped nearly a mile across Lake Chelan and prompted Chelan County to declare a state of emergency on August 4. The same week, a pyrocumulus cloud built over the burn was visible as far away as Seattle, and Leavenworth’s air quality index climbed past 849, more than seven times the level once treated as the top of the scale.

Fuels and weather that kept crews on defense

Fire behavior analyst Kevin Montoya described the conditions crews faced during the fire’s most active stretch in blunt terms, telling MyNorthwest that “the logs and the stuff that’s on the ground, logs as big as people, have the same moisture or less moisture than lumber at Home Depot.” That kind of dry, heavy fuel load in the Okanogan-Wenatchee’s timbered terrain made direct attack difficult and let the fire hold heat even after containment lines were built around it. Incident meteorologist Nick Nosler offered little hope of a quick end at the time, warning “not a whole lot of rain, not saying the whole fire will get rain” and predicting only scattered relief on parts of the burn.

That forecast has largely held. The September 24 national report still describes the fire showing “minimal fire behavior with backing, creeping and smoldering,” the kind of low-intensity activity that burns slowly but keeps crews from calling containment complete.

Command, cost, and a target date still a week away

Northwest Incident Management Team 12 took command in early September, after more than 200 active-duty soldiers from the Army’s 7th Infantry Division had already rotated through a 30-day deployment helping build and hold line. The national situation report now lists 715 personnel assigned, a decrease of 20 from the prior count, working alongside four crews, 17 engines and five helicopters. The government’s running estimate of suppression costs stands at $172.2 million, and crews are still improving control lines near Stormy Mountain on the eastern perimeter while clearing hazard trees along Tyee Ridge Road.

A September 7 update from the fire’s incident management team already had containment pinned at 81%, meaning the crews now working toward the October 1 target have spent more than two weeks holding a line rather than advancing one. The same team has also been managing the smaller Sisi Fire, 8 miles northwest of Stehekin, which had burned 2,712 acres and stood at just 11% contained as of that September 7 report, after igniting from a lightning strike on August 14.

What the fire has already cost Chelan County

Even before the 40 confirmed structure losses, an earlier report put more than 6,000 structures within the fire’s threat zone, including nearly 2,400 homes, a scale of exposure that pushed Chelan County to build an interactive evacuation-zone map and open a Red Cross shelter at the Entiat Warehouse Community Church earlier in the fire. The county’s online Little Giant Fire resources page still directs residents to that live incident map, InciWeb postings and the fire’s Facebook page rather than publishing its own daily damage count.

Forty structures lost is the figure the national interagency system now carries for this incident, sitting alongside acreage and containment numbers that are still moving, however slowly. With fire managers still pointing to an October containment date rather than a closed one, and the burn area still smoldering across more than 170,000 acres of the Cascades, the Little Giant Fire remains an active incident more than ten weeks after a lightning strike first found dry timber in the Chiwawa River valley, with Stormy Mountain crews and helicopter crews alike still on the line.

This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.

More from Morning Overview