size in more than two days, with the Palisades fire standing at 23,713 acres destroyed and the Eaton fire at 14,117, according to Cal Fire.

Both fires have been burning since Jan. 7 and started during an uncommon windstorm that brought peak gusts of 100 mph in some parts.

The blazes have wrecked neighborhoods, combining to damage or destroy more than 12,000 structures, officials have said. They have claimed at least 25 lives. More than 30 people are reported missing in the fire zones.

“Calmer but dry conditions will build … with some moisture arriving this weekend,” officials said. “Critical fire weather conditions will likely return next week.”

The curfew for mandatory evacuation areas, from 6 p.m. to 6 a.m., remains in effect, Los Angeles County Sheriff Robert Luna said.

Officials said residents and business owners in some fire-ravaged areas likely won’t be allowed back in for at least another week as authorities continue to conduct damage and search-and-rescue assessments.

In Altadena, though, residents were allowed back into a section of homes northeast of Millard Creek, some homes between Canyon Crest Road and Florecita Drive, and some on the north and west side of the Millard Canyon Open Space at 3 p.m. on Thursday.

Some residents evacuated in the Palisades fire also were allowed to return home on Thursday afternoon. Their homes are in an area near the Encino Reservoir, bordered on the east by the 405 Freeway and Westridge Canyonback Wilderness and north of West Sunset Boulevard.

And residents on the other side of the fire perimeter were allowed to return home too, near Topanga Canyon as well as Red Rock Canyon Park and the Cold Creek Valley Preserve.

For the latest on evacuation orders and warnings, shelters and road closures, see fire.ca.gov/incidents.

Crews continued to establish and improve the fire lines and extinguish hot spots. Containment is the percentage of a fire’s perimeter not expected to balloon because of firefighters’ work or natural barriers, such as the ocean.

At the Eaton fire, which has a perimeter of more than 60 miles, crews have been prioritizing fire lines in the Mount Wilson area, Jed Gaines of Cal Fire said.

As of Thursday, 61 arrests had been made by the Los Angeles County Sheriff’s Department and the Los Angeles Police Department for crimes such as burglary, curfew violations, drone violations and impersonating firefighters or law enforcement officers.

The causes of both fires are unknown, though lawyers and some victims say that Southern California Edison equipment was likely responsible for causing the Eaton fire, while a previous small fire that smoldered might have ignited the Palisades blaze.

The Bureau of Alcohol, Tobacco, Firearms and Explosives was investigating the trails near Skull Rock in relation to the Palisades fire’s origin. ATF asked anyone hiking there on Jan. 7 to contact the agency by texting ATFLA to 63975 to create a report and describe anything seen, smelled or heard.

Next week, more Santa Ana winds may erupt and the weather will be dry, said James White, a National Weather Service meteorologist.

City News Service contributed to this report.