Fire in Yosemite National Park Increases 900% in Size in One Day

September 17, 2026

The National Park Service (NPS) announced in a press release that the Dome Fire began on the morning of Sept. 15. It’s located in the area of the park close to Wawona and Mariposa Grove, approximately a quarter-mile north of Chilnualna Falls, a popular swimming spot. It’s visible from one of the main roads, Highway 41.

The fire grew from 100 acres on Sept. 15 to 1,100 acres by the morning of Sept. 16, and stands at 0% contained. Over 180 fire crew personnel are responding to the incident.

“The Dome Fire continues to have a moderate rate of spread to the north and northeast as it runs up-slope aligned with terrain and wind. GEARJUNKIE