The 15,000 acre Lolo Peak Fire is quickly outgrowing law enforcement’s ability to secure the estimated 600 homes now evacuated along the Highway 93 and Highway 12 corridors.

Fire officials have now turned to the Montana National Guard for help.

Western Montana’s Lolo Peak Fire burned through almost 5,000 acres during its run Wednesday night west of Lolo. Stiff winds spurred that now 15,000 acre fire on its four mile push to the east.

"Where the fire moved, to an extent was not a surprise as it relates to the overall plan. How quickly it moved to where it did, obviously, nobody was necessarily expecting that to happen as quickly as it did," says Lolo Peak Fire Information officer Bill Queen.

Update: 9:50: This from the Missoula County Sheriff's Office: "Due to the recent fire activity, evacuation passes need to be postponed until further notice.

In the past week alone, firefighters in northwest Montana attacked more than 40 small wildfires, and there’s no end in sight for this summer’s active fire season. But, firefighters are about to get some big help.

"That is the Black Hawk coming in right there," says Wyatt Frampton.

The fate of over two dozen national monuments on federal land will be determined in just over a week. Interior Secretary Ryan Zinke will present his recommendations to President Donald Trump on August 24. They’ll outline which national monuments should be left alone, which should be scaled back, or perhaps even scrapped altogether.

Trump called the monument areas "a massive federal land grab" by previous administrations.