A vegetation blaze near Knoxville sent smoke across Napa County Monday as crews and aircraft rushed to the scene. Officials urged residents to expect smoke and monitor updates.

A UCLA study finds stand‑replacing wildfires now scorch far more of California’s forests than in the 1980s, driven by warming and fuel buildup. Officials are expanding prescribed burns and thinning projects.

Officials warn Sonoma County faces an early, long fire season. Here’s what to know about evacuation tags, alerts and possible power shutoffs.