Still-recovering California county hit by another big blaze

Firefighter Richard Cotter battles a wildfire on Sunday, June 24, 2018, near Clearlake Oaks, Calif. Wind-driven wildfires destroyed buildings and threatened hundreds of others Sunday as they raced across dry brush in rural Northern California. (AP Photo/Noah Berger)

SAN FRANCISCO — Thousands were forced to flee their homes Monday as major wildfires encroached on a charred area of Northern California still recovering from severe blazes in recent years, sparking concern the state may be in for another destructive series of wildfires this summer.