LAKE COUNTY, Calif. — With excessive heat and red flag warnings issued for Lake County this week, Pacific Gas and Electric said it may need to shut off power to about 12,000 Northern California customers, including a small number in Lake County.

The National Weather Service has issued an excessive heat warning from Tuesday through Thursday, and a red flag warning on Tuesday.

During that time period, temperatures are forecast to spike and top the century mark across Lake County and much of the rest of the region. At the same time, northerly winds of up to 35 miles per hour and low humidity are anticipated.

Those conditions have prompted PG&E to activate its Emergency Operations Center and send two-day advanced notifications in targeted areas where the company said it may need to proactively turn power off for safety to reduce the risk of wildfire from energized power lines.

PG&E said the potential public safety power shutoff, or PSPS, is anticipated to begin early Tuesday morning and could last through Wednesday.

If fully implemented, the PSPS will affect approximately 12,000 customers, including two tribal governments, in targeted parts of eight counties.

In Lake County, 49 customers, all of them east of Lower Lake, are expected to be impacted, PG&E reported.

Also set to be impacted are the following counties: Colusa, 550 customers; Glenn, 361 customers; Napa, nine customers; Shasta, 8,888 customers; Solano, 96 customers; Tehama, 1,855 customers; and Yolo, 204 customers.

Customers can look up their address online to find out if their location is being monitored for the potential safety shutoff here.

“PG&E’s commitment is that catastrophic wildfires shall stop. PG&E is determined to protect our hometowns from wildfires, and a PSPS is a last resort,” the company said in its PSPS announcement.

Once severe weather has passed, and it is safe to do so, PG&E said it will work quickly and nimbly to patrol and inspect lines to restore power for customers as soon as possible.

Six community resource centers offering ice, ADA-accessible restrooms, device charging, Wi-Fi, blankets, air conditioning, bottled water and snacks will be available in the affected counties; however, such a center won’t be open in Lake County.

Customers are encouraged to update their contact information and indicate their preferred language for notifications by visiting www.pge.com/mywildfirealerts or calling 1-800-743-5000, where in-language support is available.

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.