The Bitterroot National Forest reports that remapping of the Chrandal Creek forest fire shows that it covers 2,000 acres instead of the estimated 1,800. The additional acreage was within the mapped perimeter of the fire.

The fire remains 30 percent contained and crews were working on hot spots on the north side of the fire - helicopters helped by dropping water.

The fire growth has again remained small this week, due to calm weather conditions.Crews noticed some isolated torching in the fire's interior.

Unstable air is expected this weekend, and then hot conditions - both of which could increase the burning and smoke from the Chrandal blaze, which is southeast of Painted Rocks Reservoir, almost on the Montana-Idaho border.

Evacuation alerts remain for residents of the upper Hughes Creek area and structure protection is in place.

There are 334 fire personnel as of Friday morning, which includes nine 20-erson firefighting crews, three helicopters, three engines, two dozers and three water tenders.