Full Breakdown
Dome Fire Rages Through Yosemite Backcountry
By Drooid · · How we work
Core Event: Rapid Expansion of the Dome Fire
A wildfire ignited on the morning of September 15, 2026 about a quarter-mile north of Chilnualna Falls in the Wawona area of Yosemite National Park. By Thursday the blaze—named the Dome Fire—had grown to between 100 acres and nearly 1,200 acres, depending on the reporting agency, and remained at 0 % containment. The fire is burning northward and northeastward through brush, timber and grass on steep, rugged terrain, prompting the closure of the Chilnualna Falls Trail and adjacent trails toward Buena Vista and Crescent Lakes.
Background & Context
Late-summer conditions in the Sierra Nevada are typically dry, and recent months have seen little rain, leaving vegetation highly flammable. Moderate wind gusts of 15–25 mph have been reported, contributing to the fire’s northward spread but not reaching “extreme” levels.
Data & Statistics
| Metric | Reported Figure | Source |
|---|---|---|
| Acreage (lower estimate) | 100 acres | Unofficialnetworks |
| Acreage (mid-range) | 300 acres (as of 4:50 p.m.) | KCRA |
| Acreage (mid-range) | 1,100 + acres | Desert Sun (intro) |
| Acreage (precise) | 1,177.1 acres | Desert Sun (intro) |
| Acreage (rounded) | 1,177 acres | ABC30; KMPh |
| Acreage (approx.) | nearly 1,200 acres | The New York Times |
| Containment | 0 % | Multiple outlets (NYT, Desert Sun, ABC30, KMPh) |
| Wind speed forecast | 15–25 mph gusts; expected to drop | Matthew Carter, National Weather Service (quoted) |
| Closures | Chilnualna Falls Trail; trails toward Buena Vista and Crescent Lakes | National Park Service (multiple sources) |
| Threat to infrastructure | None reported | National Park Service; Cal Fire |
Official Statements & Responses
National Park Service officials emphasized that there were no immediate threats to infrastructure or developed areas and that the park remained open aside from the closed trails. Cal Fire described the fire’s rate of spread as “moderate” to the north and northeast. The U.S. Forest Service noted that crews were using natural barriers and constructing fire lines on the south and west sides of the perimeter. Air quality alerts were issued for Yosemite Village, with the National Weather Service warning sensitive individuals to limit outdoor activity.
Verbatim Quotes
- “The winds are looking even lower tomorrow compared to what we’re seeing today,” — Matthew Carter
What’s Next
Park officials direct visitors to InciWeb for real-time incident updates and to AirNow for current air-quality information. Fire crews continue to request additional ground and aerial resources as they work to secure containment lines.