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Madre Fire Reaches 80,000 Acres, Containment Holds at 10%

More than 600 firefighters supported by National Guard troops battle advancing flames threatening communities, habitats, air quality

U.S. Forest Service firefighter Kai Montes battles the Madre Fire along Highway 166 in San Luis Obispo County on Thursday.
A firefighter battles the Madre Fire along Highway 166 in San Luis Obispo County on Thursday.
A helicopter drops water on the Madre Fire as it burns along Highway 166 in San Luis Obispo County on Thursday. 
A firefighter battles the Madre Fire as it makes a run along Highway 166, Thursday, July 3, 2025, in San Luis Obispo County, Calif. (AP Photo/Noah Berger)

Overview

  • The wildfire has scorched nearly 80,000 acres in rural San Luis Obispo County with containment stalled at about 10 percent.
  • Over 600 firefighting personnel, multiple air tankers and roughly 150 National Guard troops have been deployed to establish control lines.
  • Mandatory evacuation orders now affect over 200 residents and place around 50 structures at risk from the rapidly moving blaze.
  • Thick smoke plumes have drifted into metropolitan Los Angeles, prompting the South Coast Air Quality Management District to issue health advisories.
  • The fire’s edge is encroaching on the Carrizo Plain National Monument’s sensitive ecosystems while CalFire investigators continue to probe its cause.