(TDB) - A 70,000-acre wildfire is currently blazing through Napa County less than a year after the wine region suffered one of the worst wildfires in northern California’s history.

The blaze began in in dry vegetation in Yolo County, east of Napa, on Sunday and was currently only 15% contained on Tuesday evening.

According to the California Fire Department, the blaze is the largest wildland fire in California this year and is currently threatening nearly 1,000 structures.

The number of fire fighters working to contain the blaze nearly doubled yesterday to 2,162 personnel. Officials hope that full control of the wind-driven wildfire, which measures nearly 18 miles long and is shaped like a fern leaf, could be achieved by 10 July.

Hundreds of residents on the fire’s southern edge have been told that they may have to evacuate their homes if the blaze spreads.