The Park Fire in Northern California, one of the largest in state history, has burned over 420,000 acres across multiple counties including Tehama, Butte, Plumas, and Shasta, with containment at 34% as of Wednesday. The fire continues to be fueled by hot, dry weather and critically dry vegetation, posing ongoing challenges for the more than 6,600 firefighters involved. Smoke from the Park Fire is affecting air quality in surrounding regions, including Western Nevada. Authorities are concerned about the potential for increased fire activity when current smoke cover dissipates and humidity levels drop. The Crozier Fire, another wildfire in Northern California, has burned 75 acres and is currently zero percent contained. Meanwhile, firefighters in Wyoming are monitoring the Bear Canyon Fire, which was possibly ignited by lightning and is burning in rugged terrain.