The Pickett Fire in California's Napa County had burned 4,690 acres as of Saturday morning, making it the largest fire in the Bay Area since last year.

The Pickett Fire continues to grow in Napa County, and the flames are now encroaching on vineyards near Aetna Springs.

The Pickett Fire, burning since Thursday afternoon near Calistoga, spurred new evacuation orders Saturday morning as the blaze continues to move east and challenge control lines, according to fire officials.