Arrastra Creek Fire

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Arrastra Creek Fire


Approximate Location

47.042 latitude, -112.797 longitude

Incident Overview

Water support for Div. G

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The Arrastra Creek Fire was sparked by a lightning storm on the evening of July 18, 2017. Local Forest Service officials decided to fully suppress the fire, given the predicted weather and other fire activity in the region. A 30 person initial attack crew was dispatched immediately and nearly had the emerging fire surrounded by fireline by early afternoon on July 19th. Low relative humidity resulted in very active fire behavior and quick fire growth.

Basic Information

Current as of
Incident TypeWildfire
Date of OriginTuesday July 18th, 2017 approx. 08:00 PM
Location6 miles northwest of Lincoln, MT
Incident CommanderKelly Zombro

Current Situation

Total Personnel20
Size4,585 Acres
Percent of Perimeter Contained41%
Estimated Containment DateSaturday September 30th, 2017 approx. 12:00 AM
Fuels Involved

Timber with litter and understory

Significant Events

Moderate fire behavior was observed yesterday with wind driven runs, spotting and group tree torching.

Steep rugged terrain, large dead fuels and numerous snags continue to be the primary safety concerns for fire crews. The safety of fire personnel and human life remain the highest priority.


Planned Actions

Hold and improve completed line. Monitor fire for spotting south of the shaded fuel break along Div D and Div A of the Park Fire.

Projected Incident Activity

Sustained westerly winds are pushing the fire into Stone Wall Creek drainage. The east aspect is having terrain driven runs, with up to 1/2 mile spotting in the receptive fuel bed on the western aspect. Arrastra and Park fires will be within 1/2 mile of merging.


Increased acreage due to consumption of interior islands, no threat to the perimeter. Growth along the eastern flank. Westerly winds are pushing the fire towards the Park Creek Fire and expecting the fires to merge along the Stone Wall Creek drainage.

Transition to a Type 3 team 0700 Friday Aug. 17, 2017

An area closure is in effect. The closure has been amended to allow access to Copper Creek and Snowbank Lake.

Stage 1 Restrictions in effect. Campfires are allowed in metal fire pits only. Smoking is restricted to vehicles, buildings and 3 foot areas void of vegetation.

Current Weather

Weather Concerns

Northwesterly winds behind a weak trough will continue to result in elevated wind speeds of 8 to 12mph and gusts of 15 to 20mph. Temperatures will remain unchanged with highs 70s to around 80. Humidity will be up slightly with minimums 20% to 30%.

Concern for a strong mainly dry frontal passage Saturday. Winds ahead of the front are expected to increase Friday afternoon and Friday night, promoting Critical Fire Weather conditions.

A fire behavior analyst and weather specialist continue to monitor current weather conditions.

Unit Information

USFS Shield
Helena - Lewis and Clark National Forest
U.S. Forest Service
2880 Skyway Drive
Helena, MT 59602

Incident Contact

Fire Information
Phone: 406-318-7002
Hours: Daily 7 a.m. - 10 p.m.

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National Wildfire Coordinating Group U.S. Forest Service Bureau of Land Managemen Bureau of Indian Affairs Fish and Wildlife Service National Park Service National Association of State Foresters U.S. Fire Administration
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