LAKE COUNTY, Calif. — With forecasters having issued a red flag warning for Lake County and other parts of Northern California due to an incoming wind event, Pacific Gas and Electric is continuing to plan for a public safety power shutoff that will impact thousands of its customers across the region starting Thursday night.

A red flag warning means that critical fire weather conditions — which the National Weather Service describes as a combination of strong winds, low relative humidity, warm temperatures and critically dry fuels that can contribute to extreme fire behavior — are either occurring now, or will shortly.

The red flag warning will be in effect from 11 p.m. Thursday to 5 p.m. Saturday in response to strong northeast winds with isolated gusts of up to 50 miles per hour, according to the forecast.

Forecasters also have predicted very low humidity of down to about 10 percent during the day on Friday and Saturday, and poor recoveries of 30 to 40 percent Thursday night and 20 to 30 percent Friday night.

PG&E’s shutoff, meanwhile, is expected to begin between 3 and 6 p.m. on Thursday and is anticipated to involve 168 Lake County customers, who are among 28,000 customers in 30 Northern California counties.

Also included in the shutoff as currently planned are 10 customers in Mendocino County, 649 in Napa and 707 in Sonoma, PG&E reported.

In Lake County, the shutoff is focused mostly around Hidden Valley Lake, some areas near MIddletown and Cobb, and areas east of Clearlake Oaks, particularly Spring Valley, according to the shutoff map.

PG&E is setting up two community resource centers for impacted residents.

The first will be at Live Oaks Senior Center, 12502 Foothill Blvd. in Clearlake Oaks. The second will be at Hidden Valley Lake Association, 19305 Donkey Hill Road.

Both will be open from noon to 10 p.m. Thursday. Available resources will include ADA-accessible restrooms and washing stations; blankets, snacks and water; device charging; small medical device charging; seating; and wi-fi.

Updates are available at https://pgealerts.alerts.pge.com/psps-updates/.

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.