Several days after it ignited in the Highland area of San Bernardino County, the Line Fire continued to burn through rough mountain terrain Monday, growing to 20,553 acres amid scorching temperatures.
The blaze started Thursday evening and quickly spread over the weekend, forcing evacuations and shutting down roads in the area.
No homes have been reported destroyed as of Monday, but more than 36,000 structures were threatened in the area including residential homes, commercial buildings and other minor structures.
According to Cal Fire , containment creeped up to 3% as firefighters contended with hot, dry conditions and tough terrain.
Officials said a chance of thunderstorms expected throughout the day could pose even further problems for firefighters on the ground.
“The latest challenge has been those thunderstorms, and we’re just keeping up with them,” said Cal Fire’s Brent Pascua. “We’re making sure that we have our firefighters in all different directions, so if it switches directions like it did yesterday, we’re there to meet it.”