A wildfire that erupted in dry, windy conditions east of the Cajon Pass in the Silverwood Lake area of San Bernardino County on Saturday, forced campers and others to flee and closed part of the Pacific Crest Trail, was stopped at roughly 480 acres on Sunday.

The Lake fire prompted widespread evacuations and precautionary power outages, with the fire continuing to pose a threat to high-tension power lines, according to Cal Fire and Watch Duty, a nonprofit app that tracks wildfires.

About 30 homes were threatened by the blaze, but as of Sunday afternoon, none were reported damaged.

Cal Fire announced by midday Sunday that the blaze’s forward progress had been stopped.

However, the fire “impacted” parts of the Pacific Crest Trail, the U.S. Forest Service announced on Facebook Sunday afternoon.

“We have issued a temporary trail closure of two sections of the PCT between Silverwood Lake and I-15 along Highway 138,” the Forest Service said.

“If you are hiking the trail, please DO NOT pass the trail/road closed signs,” the post said. “Your safety is our top priority, and the area is considered hazardous. Please stay away and follow the safety measures in place.”

The post did not elaborate on the specific damage or danger.

The fire was 15% contained as of Sunday evening.

Fire crews worked through Saturday night into Sunday to build containment lines and protect communities. The weather was a challenge, with gusty, southerly winds up to 25 mph and low humidity.

Today is expected to bring stronger wind gusts exceeding 30 mph, which could challenge firefighters’ efforts.

Evacuation orders were issued Saturday by the San Bernardino County Sheriff’s Department for residents living south of Highway 138 from Highway 173 to the 15 Freeway, the sheriff’s department announced. However, at 6 p.m. Sunday the evacuation order was downgraded to a warning.

Also, an evacuation warning was issued for an area south of Hesperia and north of Highways 138 and 173.

Highway 138 was closed from Highway 173 to Old Mill Road.

Numerous firefighting air tankers from throughout the state were flying fire suppression missions as conditions allowed, Cal Fire said. The agency also said more than 520 personnel, three helicopters and 54 fire engines have been dispatched to the area near Silverwood Lake, a popular spot in the San Bernardino mountains.

Silverwood Lake State Recreation Area, where park visitors were evacuated Saturday, announced on social media it would be closed Sunday due to the fire. An evaluation will be made to determine if it reopens today.

Authorities announced Sunday that anyone looking to retrieve a vehicle from the Silverwood Lake Recreation Area should drive to the road closure checkpoints at Highway 138 and Highway 173 in Hesperia and be prepared to show identification and follow directions from law enforcement personnel.

The Lake fire burned southwest of Silverwood Lake on Saturday evening, Cal Fire San Bernardino spokesperson Alison Hesterly said. Winds were pushing the blaze to the northwest, and it was burning in heavy brush, Cal Fire said.

No injuries have been reported due to the fire, which started around 4 p.m. on Saturday.

Southern California Edison said it de-energized customers in the surrounding areas around 5:41 p.m. that day, including Lake Arrowhead, Crestline, and Twin Peaks, due to the fire’s potential effects on the company’s equipment.

Power began to be restored by midnight and by Sunday morning, the SCE reported 6,751 customers remained without power. By the afternoon, only 16 customers had no electricity, the utility said.

“SCE is focused on getting power and service restored to our customers as soon as it is safe to do so. Access to fire areas is provided to us by fire agencies. Once we are given access and it is safe, we can start expedited repairs,” SCE spokesperson Diane Castro said.

Temperatures in nearby Victorville reached 97 degrees on Saturday while winds were blowing at 26 mph, with gusts of 30 mph, the National Weather Service said.

It wasn’t immediately known what caused the fire. The San Bernardino National Forest, the San Bernardino County Fire Department and Cal Fire San Bernardino were working together in the effort to contain it.