SACRAMENTO (CBS13) – Approximately 21,000 customers in Yuba, Butte and Plumas counties are expected to be impacted by an anticipated Public Safety Power Shutoff on Saturday evening, Pacific Gas and Electric said in a news release on Thursday.

The estimated 21,000 customers have started receiving on Thursday night initial notifications of the potential PSPS event, which PG&E said will be localized to the Sierra Foothills.

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According to the utility, high winds and dry conditions in the northern Sacramento Valley and northern Sierra are posing an increased risk for damage to PG&E’s electrical system, which could ignite wildfires in areas with dry vegetation.

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PG&E said that although there is still uncertainty regarding the strength of this weather system, the high-risk conditions are expected to arrive Saturday evening and subside early Monday.

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During the next 48 hours, PG&E said it will continue to monitor the forecasted weather event and issue more notifications as we inch closer to Saturday.