YOLO COUNTY, Calif. — About 500 firefighters are battling a wildfire that erupted in Northern California Saturday afternoon and spread quickly across brush-covered hills.

The California Department of Forestry and Fire Protection says the fire near the community of Guinda in Yolo County grew overnight to 1,800 acres (2.8 square miles).

Officials say strong winds and temperatures in the 90s fueled the fire. An evacuation order was issued for an unknown number of homes on a rural road.

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Windy, dry and hot conditions are expected to continue through Sunday afternoon. Pacific Gas and Electric Co. shut off the power to selected regions to guard against wildfires.

Power was turned off to approximately 1,600 customers in Napa, Solano and Yolo counties and about 43,000 customers in Butte, Yuba, Nevada, El Dorado and Placer counties in the Sierra foothills.