jurisdiction, according to the agency's website.
More than 1,500 people have been deployed to combat the fire, which was expected to push further north in the next 24 hours, authorities said.
"It's just going to be a mess out there on I-5", Hinkson said in a Facebook Live video from near the fire.
"It's not in the middle of a town, but there are some rural residences" in the area, Shasta-Trinity National Forest spokeswoman Carol Underhill said.
"You can't underestimate the value of our people getting the opportunity to go over there and practice those skills on these large incidents and bring those skills home for us in the future".
Siskiyou County Sheriff Jon Lopey said the fire seems to have slowed, but since it's burning about 15 miles from the city, residents of Dunsmuir should make sure their cars are ready and their belongings are in place.
"The fire progressed primarily to the northwest, but it is also extremely active along the eastern edge between Interstate 5 and the Hirz Fire", according to the US Forest Service."There are several areas along the southern perimeter where the fire crossed over primary control lines and crews are aggressively attacking these slop-overs to prevent the fire from making southerly progress".
"I've been evacuated for fires myself", the hot-shot firefighter said.