The expected critical fire conditions have Pacific Gas & Electric Co. prompted to warn of possible power shutoffs in dozens of California counties later this week, including Sonoma, Napa, Lake and Mendocino counties.

Oakland-based PG&E said Tuesday that the Public Safety Power Shutoffs (PSPS) could begin Thursday and last until Sunday. The closures correspond to a red flag warning from the National Weather Service.

Here are the counties where PG&E said public safety power shutoffs are possible:

Thursday

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Mendocino

Napa

Sonoma

Alameda

Colusa

Against Costa

Glenn

Shasta

Solano

Tehama

Yolo

Friday

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Mendocino

Napa

Sonoma

Alameda

Alps

Amador

Butte

Calaveras

Colusa

Against Costa

El Dorado

Fresno

Glenn

Madera

Mariposa

Merced

Monterey

Nevada

Placer

Plumas

San Luis Obispo

Saint Barbara

Shasta

Sierra

Solano

Stanislaus

Tehama

Tuolumne

Yolo

Saturday

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Mendocino

Napa

Sonoma

Alameda

Alps

Amador

Butte

Calaveras

Colusa

Against Costa

El Dorado

Fresno

Glenn

Madera

Mariposa

Merced

Monterey

Nevada

Placer

Plumas

San Luis Obispo

Saint Barbara

Shasta

Sierra

Solano

Stanislaus

Tehama

Tuolumne

Yolo

Sunday

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Mendocino

Napa

Alps

Amador

Butte

Calaveras

Colusa

El Dorado

Fresno

Glenn

Madera

Mariposa

Nevada

Placer

Plumas

Shasta

Sierra

Tehama

Tuolumne

Sign up for PSPS alerts here to be notified of a planned power outage.

If a closure is called, you can look up to see if your address is here.

Go here for more information.