CLEARLAKE OAKS, Calif. (AP) — Crews made progress overnight against a Northern California wildfire that has grown to more than 4 1/2 square miles and forced the evacuation of hundreds of homes.

The blaze in Lake County was 25 percent contained early Monday and threatens 480 homes in Spring Valley. The fire destroyed three buildings after erupting Sunday but it's unclear whether those were homes.

A second Lake County wildfire has burned more than three square miles and forced evacuations.

Meanwhile, two fires sparked by lightning from Sunday thunderstorms are burning out of control in Southern California wilderness areas but no homes are nearby.

A 220-acre blaze is near Vallecito in San Diego County and a 300-acre fire is burning in Joshua Tree National Park east of Palm Springs.

More thunderstorms are possible Monday afternoon.