The Madre Fire ignited Wednesday afternoon in San Luis Obispo County and has since grown to more than 52,000 acres, according to Cal Fire.

The Madre Fire in eastern County continued to grow overnight as firefighters battled challenging conditions at the large blaze. According

A massive California wildfire has prompted evacuation orders and a highway closure. The Madre Fire ignited Wednesday afternoon in San Luis Obispo County, according to Cal Fire. It has since grown to 70,800 acres in less than 72 hours and is 10% contained as of Friday evening, fire officials said.