Where Edison shut off power in Southern California due to extreme wind and fire risks

An extreme wind event has caused Edison in Southern California to shut off power to thousands of customers across the region. The map below shows which areas are currently without power and which areas are under a warning of further outages.

Two fires ignited Wednesday in a wind event in Santa Ana that produced wind gusts of 70 to 80 miles per hour in Ventura and Los Angeles counties.

Tens of thousands of utility customers across the region lost power Wednesday afternoon “due to the increased risk of wildfires,” the utility said. The closures that affected Los Angeles, San Bernardino, Riverside, Ventura, Orange and Santa Barbara counties early Wednesday have been expanded to include portions of Kern and Tulare counties.

Edison’s public safety power shutoffs are aimed at containing threats, often in areas where equipment is at high risk of starting a wildfire. Edison reported that thousands more shutdowns are being considered through at least Thursday.

The utility’s meteorology teams are using their own weather models and government data to weigh potential shutdowns. They monitor not only wind speeds and gusts, but also the presence of wind-blown debris and the dryness of vegetation using hundreds of weather stations and sensors.

“We always try to shut off power as locally as possible,” said a spokesman for Southern California Edison. “We know this is not just an inconvenience. We know that these outages represent real hardships and that turning off power is truly a last resort.”

While Edison tries to give customers three days’ notice of a closure, that’s not always possible, the spokesman said.

“This is a phenomenon of the increasing impact of climate change on the weather. “We have more weather extremes that can change more quickly than we might be used to,” he said.