The Madre fire in San Luis Obispo County, California, has exploded to 70,800 acres, becoming the state's largest wildfire this year. Fueled by hot, windy conditions, the fire is 10% contained, has destroyed one structure, and threatens 50 more. Over 200 people are under evacuation orders. The cause is under investigation, but over 600 personnel and 46 fire engines are battling the blaze with air support.

Prepared by Olivia Bennett and reviewed by editorial team.