Favorable weather Friday helped hold fire lines for the Rock Creek fire burning on Cheyenne Mountain, bringing containment to 80%, according to the El Paso County Sheriff’s Office.

Deputies also announced that on-the-ground crews are ensuring all hot spots are eliminated while they hold the fire lines.

Crews made “significant progress” in their firefighting efforts due to cooler temperatures and rainfall on Thursday, and conditions have only improved, officials said.

The Sheriff’s Office issued a pre-evacuation warning within a 1.5-mile radius of Rock Creek Canyon Road around 12:30 a.m. Wednesday and lifted it 12 hours later. The 1.5-acre fire began a few thousand feet north of the end of the road, which includes homes and the May Natural History Museum.

The 25 firefighters battling the Rock Creek fire are from the Colorado Springs Fire Department, El Paso County Wildland Team, Fort Carson Fire, Lucky Peak Rappel Crew, Southern Colorado Interagency Wildland Fire Team, Southwestern Highway 115 Fire Protection District and the U.S. Forest Service.

Drones will continue to fly over the area until full containment is reached, the Sheriff’s Office said.