PG&E Corp. warned it may need to cut power about 97,000 homes and businesses this weekend — almost five times more than it earlier anticipated — to prevent its equipment from sparking blazes as high winds buffet the bone-dry hills of Northern California. The San Francisco-based utility giant said it may need to turn off electricity as soon as Sunday morning to portions of 15 counties, mostly located in the foothills of the Sierra Nevada mountain range, according to a statement late Friday.

PG&E, which initially warned the outages could impact 21,000 customers, said the scope needed to be expanded based on updated forecasts that showed stronger potential wind gusts in a large swath of company’s service area. The fire risk is forecast to last from Saturday night through midday Monday. The National Weather Service warns gusts could reach 55 miles (88.5 kilometers) per hour in some areas. PG&E will restore power as soon as it can confirm lines weren’t damaged.

Earlier this month, PG&E cut power to about 172,000 homes and businesses as high winds raked California. Utilities across the U.S. West are increasingly cutting power ahead of wind storms to reduce the chances of their live wires igniting catastrophic blazes.