Red flag warnings, signaling elevated wildfire danger, have been issued across Los Angeles, Ventura, Santa Barbara and San Luis Obispo counties until Saturday.

A dangerous heat wave has descended on much of California and the U.S. Southwest, with triple-digit temperatures expected along with a higher risk of wildfires

Firefighters and first responders are taking proactive steps as sweltering heat descends on Southern California this week, hoping to have an advantage due to elevated fire danger.