NAPA (CBS SF) – Large areas in Napa County are without power, including areas where residents are under a mandatory evacuation order due to wildfires, officials said Tuesday evening.

Darkened areas include a large portion of the City of Napa, Yountville, St. Helena, and communities by Lake Berryesa, with more than 22,000 customers without power.

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The Napa Police Department advises that many traffic signals are off or flashing red and advise drivers to treat them as a four-way stop.

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