A fire raging in Northern California has become the largest in modern state history, the state’s fire agency said on Monday. The Mendocino Complex Fire, which is burning northwest of Sacramento, topped 283,000 acres on Monday, making it the most sizable California fire in a century of record-keeping. “It’s not a good sign,” said Lynne Tolmachoff, a spokeswoman for Cal Fire. She noted that the state was only in the middle of its fire season, with the worst fires often occurring later in the year, as the land becomes increasingly dry and weather patterns create windy conditions. “We’ve got a long road ahead,” she said. The Mendocino Complex Fire overtook last year’s Thomas Fire, which ate up nearly 282,000 acres.