New wildfires ravaged California during a scorching Labor Day weekend that saw a dramatic airlift of more than 200 people trapped by flames and ended with the state’s largest utility turning off power to 172,000 customers to try to prevent its power lines and other equipment from sparking more fires.

California is heading into what traditionally is the teeth of the wildfire season, and already it has set a record with 2 million acres burned this year. The previous record was set just two years ago and included the deadliest wildfire in state history — the Camp Fire that swept through the community of Paradise and killed 85 people.

That fire was started by Pacific Gas & Electric power lines. Liability from billions of dollars in claims from that and other fires forced the utility to seek bankruptcy protection. To guard against new wildfires and new liability, PG&E last year began preemptive power shutoffs when conditions are exceptionally dangerous.

That’s the situation now in Northern California, where high and dry winds are expected until Wednesday. PG&E received criticism for its handling of planned outages last year. The utility said it has learned from past problems, “and this year will be making events smaller in size, shorter in length and smarter for customers.”

Two of the three largest fires in state history are burning in the San Francisco Bay Area. More than 14,000 firefighters are battling those fires and about two dozen others around California.

The fire danger also is high in Southern California, where new fires were burning in Los Angeles, San Bernardino and San Diego counties. The U.S. Forest Service on Monday decided to close all eight national forests in the region and to shutter campgrounds statewide.

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