Improved weather is helping firefighters battling a rural northern California wildfire threatening the community of Palermo, which is near where the state’s deadliest wildfire struck six years ago. The fire spread over about 1 square mile Monday evening but was static overnight and containment has reached 15%. Authorities say winds subsided, marine air brought some cooling and conditions are favorable Tuesday. The cause of the blaze — which is dubbed the Apache Fire — is under investigation. Palermo is part of Butte County, where California’s deadliest wildfire killed 85 people and destroyed 11,000 homes in the town of Paradise in 2018.