- Elizabeth Larson
- Posted On
PG&E moves ahead with power shutoff; outage rolled out in phases starting early Wednesday
Shortly after 1 a.m., the utility confirmed that it had implemented the first phase of a public safety power shutoff across significant portions of its service area in response to a widespread, severe wind event.
Sumeet Singh, PG&E’s vice president for asset and risk management and the Community Wildfire Safety Program, told reporters Tuesday evening that the shutoff is a measure of last resort and is in response to “unprecedented fire risk.”
More than 800,000 customers in 34 counties are going to be impacted by the shutoff, including approximately 37,439 customers in Lake County, of which 2,167 are medical baseline customers, PG&E said.
However, those statistics don’t reflect the actual number of California residents to be impacted by the shutoff, and in a media briefing with reporters on Tuesday night, the utility could not give more detailed information.
In Lake County, PG&E said the outage will be widespread, and will include the communities of Clearlake, Lakeport, Clearlake Oaks, Lucerne, Nice, Upper Lake, Lower Lake, Middletown, Kelseyville, Cobb, Hidden Valley Lake, Glenhaven, Witter Springs, Clearlake Park, Loch Lomond, Kelseyville and Finley.
Lake County Sheriff Brian Martin told Lake County News earlier on Tuesday that every populated area of the county was expected to be impacted.
PG&E said the shutoff will occur in three phases.
The first phase, which began at 12 a.m. Wednesday and is expected to roll over over several hours from north to south, will impact approximately 513,000 customers in Amador, Butte, Calaveras, Colusa, El Dorado, Glenn, Humboldt, Lake, Marin, Mendocino, Napa, Nevada, Placer, Plumas, Shasta, Sierra, Solano, Sonoma, Tehama, Trinity, Yolo and Yuba counties, PG&E said.
The second phase of the public safety power shutoff will occur around noon on Wednesday and will impact service to approximately 234,000 customers in Alameda, Alpine, Contra Costa, Mariposa, San Joaquin, San Mateo and Santa Clara counties, according to PG&E.
A third phase is being considered for the southernmost portions of PG&E’s service area, impacting approximately 42,000 customers. PG&E said early Wednesday that specific locations are still to be determined.
Singh said the shutoff will include deenergizing large transmission lines of up to 115 kilovolts.
PG&E said it was continuing with the shutoff due to conditions reflected in a red flag warning for much of Northern California issued by the National Weather Service on Tuesday. The red flag warning is in effect from 5 a.m. Wednesday to 5 p.m. Thursday.
At the Tuesday evening press briefing, Evan Duffey, a senior meteorologist with PG&E, said the models have been very consistent in showing an offshore wind event through Friday. Those winds, combined with low relative humidity levels and critically dry vegetation, are creating dangerous fire weather, he said.
Duffey said it’s expected to be the strongest offshore wind event since October 2017.
Winds of between 25 to 35 miles per hour are forecast, with gusts of up to 45 miles per hour, and 65-mile-per-hour gusts in the North Bay hills, he said.
At around 1 a.m. Wednesday, PG&E’s weather map showed wind speeds of up to 16 miles per hour and gusts of 22 miles per hour blowing from the east into Lake County from Hopland and Lyons Valley, with similar wind speeds coming from the north in the area of the High Glade Lookout above Upper Lake.
The area of Cobb Ridge West was showing speeds of up to 21 miles per hour, with gusts of up to 31 miles per hour, coming from the north at the same time, based on the map.
Singh said they anticipate peak winds will occur early Wednesday morning until midday Thursday.
He said some PG&E customers may experience a power shutoff even if conditions in their area aren’t extreme due to the interconnected nature of the power grid.
The goal is to have the shutoff done by midday Thursday. However, Singh said it could take several more days after that to restore the power due to the size of the outage as well as any damage that is discovered afterward.
Singh said the first step the company will take after the outage is to inspect every inch of overhead lines. He said the company can bring in up to 5,000 personnel plus helicopters for those inspections.
“We very much understand the inconvenience and difficulty such a power outage would cause,” Singh said.
He added, “We do not take or make this decision lightly.”
At the same time, Cal Fire’s Sonoma-Lake-Napa Unit reported that it stepped up its staffing, bringing in more personnel in its emergency command center, staging another firefighting helicopter at the Sonoma Air Attack Base and assigning a night reconnaissance aircraft for Northern California based at McClellan Reload Base.
In neighboring Mendocino County, officials said Tuesday night that the scope of the planned outage there had narrowed.
The Mendocino Sheriff’s Office said that the affected areas included Redwood Valley, Potter Valley, Hopland, portions of unincorporated areas of the Ukiah Valley, 62 PG&E service points in the Willits area, Leggett, Piercy, Whitethorn and Whale Gulch. The agency said 88 percent of PG&E customers in those areas were expected to begin losing power at 12 a.m. Thursday.
Meanwhile, the cities of Fort Bragg, Point Area and Ukiah, and the unincorporated Mendocino County coastal communities are not expected to be without power, the Mendocino County Sheriff’s Office said.
PG&E’s Web site was overwhelmed with traffic on Tuesday. Despite doubling the size of the database, the company’s Web site received seven to eight times the normal traffic.
Company officials urged those needing more information to visit its Twitter feed, where it is posting updates and maps.
PG&E will open a community resource center at the Clearlake Senior Center at 3245 Bowers Ave in Clearlake on Wednesday.
The center, which will be open from 8 a.m. to 6 p.m., will provide restrooms, bottled water, electronic device charging and air-conditioned seating, PG&E said.
Email Elizabeth Larson at This email address is being protected from spambots. You need JavaScript enabled to view it.. Follow her on Twitter, @ERLarson, or Lake County News, @LakeCoNews.