Firefighting efforts continue on the Eaton Fire that has burned over 14,000 acres and killed at least 17 people as the area finally sees improving weather conditions beginning Thursday.

The Eaton Fire, one of two major wildfires burning in the Southern California region, is now the second-most destructive wildfire on record in California, according to Cal Fire. The fire, which started the night of Jan.

Firefighters have made progress in battling the Eaton fire but warned residents not to get complacent on Wednesday.

A new air quality alert has been issued for Los Angeles County until 7 p.m. local time "due to harmful particle pollution levels from windblown dust and ash." This pollution can embed deep into the lungs and cause health problems including heart disease symptoms,

More evacuation orders have been lifted as the Eaton Fire reached 55% containment on Thursday morning. The fire has also burned 14,117 acres, according to CalFire.