(Bloomberg) -- Two Southern California wildfires that have forced more than 90,000 people to evacuate surged overnight as gale-force winds drove flames over tinder-dry hillsides.The Silverado fire, burning on the hills above Irvine, grew to more than 11,000 acres and is just 5% contained. The nearby Blue Ridge Fire is now 8,000 acres and burning uncontrolled, according to fire officials.“We’re dealing with extreme wind and erratic fire behavior,” Orange County Fire Authority Captain Greg Barta said during a media briefing Monday night.Wind gusts and bone-dry conditions have made for some of the most threatening weather California has seen since the Camp Fire erupted in 2018, killing 85 people. They’re also the latest blow for a state that’s been battered by a succession of heat waves, power outages and wildfires that have burned a record 4.1 million acres this year.While the winds may ebb Tuesday, it will still be perilous in many parts of the state. Nearly 23,000 square miles of California, including the cities of Sacramento, Santa Ana, Anaheim, Riverside, and Stockton, will experience critical conditions, according to the U.S. Storm Prediction Center. About 14.2 million people live in this area.The Silverado fire was fanned by winds that topped 70 miles per hour and has prompted more than 90,000 people to flee. More than 500 firefighters are battling the blaze. The Blue Ridge fire near Yorba Linda has spurred more than 1,100 evacuations.Edison International, which owns the electric utility that serves Irvine, filed a report Monday with state regulators saying it appeared a wire attached to a telecommunications line may have come in contact with one of its power lines, possibly starting the Silverado fire. The cause remains under investigation, and the company is cooperating with authorities, a spokesman said.The blazes came even after Edison, PG&E Corp. and other utilities cut power in some areas to prevent live wires from falling into dry brush during the wind storms. PG&E, the state’s largest utility, imposed the most widespread outages, cutting power to about 355,000 homes and businesses.PG&E restored power to about 156,000 customers as of Monday evening. The company estimated that about 189,000 homes and businesses will have their power restored by Tuesday evening.Edison turned off electricity to about 20,500 homes and businesses in Southern California, and said another 19,000 customers could loser power as well on Tuesday. High wind warnings are in effect for Southern California through Tuesday night.Climate change -- especially the impact on California -- has become one of the focal points of the upcoming election. Earlier this month, President Donald Trump granted the state’s request to declare a major disaster in seven counties hit by this year’s historic fire season, shortly after rejecting it. He has repeatedly blamed poor forest management for the fires.California received federal assistance to help cover the cost of battling the Blue Ridge and Silverado fires, Newsom announced Monday.PG&E began resorting to preventative shutoffs after its equipment caused some of California’s worst blazes, forcing the company into bankruptcy last year. PG&E emerged from Chapter 11 in July after paying $25.5 billion to resolve fire claims.For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2020 Bloomberg L.P.