California’s changing climate has pushed fire season to new lengths, triggering once-rare winter blackouts. State utilities cut power to more than 72,000 homes and businesses Tuesday in a preemptive effort to prevent live wires from sparking wildfires as Santa Ana winds threaten to fan flames. Blazes are breaking out nonetheless, including in Santa Cruz County, where two fires are prompting evacuations.

While the Santa Ana winds usually die off by November, they’re increasingly extending further into winter, underscoring how wild California’s weather has become as climate change drives extreme heat and drought. Last year, record temperatures took down large swaths of the state’s power grid and wildfires torched more acreage than ever before.

“We have noticed the fire seasons are getting longer, the weather patterns are being a little bit different,” said Richard Cordova, a spokesman for the California Department of Forestry & Fire Protection, more commonly known as Cal Fire. “We are seeing these conditions hitting us in December and now in January.”