Dubbed the Hughes Fire, the wildfire broke out Wednesday and went from 50-100 acres to 9,000 acres in hours, threatening local communities and Magic Mountain.

The Hughes Fire broke out on Wednesday and in less than a day had charred nearly 16 square miles of trees and brush.

A fast-moving wildfire exploded to roughly 10,200 acres near the Los Angeles County community of Castaic Wednesday morning, prompting mandatory evacuation orders and road closures, authorities said.

The Hughes Fire has spread over 8,096 acres after starting just before lunchtime in Los Angeles County's Castaic Lake area on Wednesday.

The fire threat remains critical in Southern California, where thousands of residents were under evacuation orders Wednesday as fire crews battled the out-of-control Hughes Fire near Castaic, a suburb in the foothills and mountains of northern Los Angeles County.

A new wildfire that erupted in northern Los Angeles County triggered tens of thousands of evacuation orders and warnings.