The utility began cutting power Thursday to customers in 12 counties, including Alameda, Contra Costa, Napa, Solano and Sonoma in the Bay Area, and some customers farther north in Colusa, Glenn, Tehama and Shasta counties, PG&E said.
California utility cuts power in 12 counties as 'diablo' wind spikes risk of wildfires
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Pacific Gas and Electric has said it may have been sparked when a tree fell on its power line.
California fire threatens homes as blazes burn across West
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