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.
|Current as of|
|Date of Origin||Tuesday July 18th, 2017 approx. 08:00 PM|
|Location||6 miles northwest of Lincoln, MT|
|Incident Commander||Kelly Zombro|
|Percent of Perimeter Contained||41%|
|Estimated Containment Date||Saturday September 30th, 2017 approx. 12:00 AM|
Timber with litter and understory
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.
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.
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.