The South Yaak Fire was detected on July 13, 2021. It is burning in timbered, steep terrain approximately 4 miles northwest of Troy, Montana. The fire was reported at approximately .25 acres on the south slope of Yaak Mountain. It quickly grew despite heavy initial attack efforts, including support from helicopters and airtankers. On July 20, Great Basin Type 2 Incident Management Team #4 took command of the fire. On July 23, it grew about 400 acres after a log rolled down the slope, scattering embers which quickly turned to flames that ran back up the hill.
The fire presents a challenge due to steep terrain, difficult access, and critically dry vegetation. It is likely to burn until significant moisture covers the fire area.
Team 4 is also managing the Burnt Peak Fire, https://inciweb.nwcg.gov/incident/7619/. Resources will be shared between the two fires. A fire camp is located adjacent to Highway 56, south of the junction with Highway 2. Please use caution traveling through the area, as heavy equipment will be entering and leaving the camp, especially in the mornings and evenings.
|Current as of|
|Date of Origin||Tuesday July 13th, 2021 approx. 01:00 PM|
|Location||4 Miles NW of Troy, Mt|
|Incident Commander||Tracy Dunford, Great Basin Team #6|
|Coordinates||48.551 latitude, -115.93 longitude|
|Percent of Perimeter Contained||10%|
|Estimated Containment Date||Thursday September 30th, 2021 approx. 12:00 AM|
Dead and down fuels are extremely dry and receptive. ERCs are back up to historical maximum values for this time of year. Dense timber stands and areas of recent helicopter logging operations with a light load of remaining slash fuels leftover. Live fuel moistures have decreased significantly in the last couple of weeks.
Fire behavior was minimal to moderate with backing, flanking, and slow upslope spread over much of the fire area. Isolated torching and short range spotting did occur in some areas.
Identify and suppress spot fires from rollout overnight along completed firelines. Maintain firing operations to keep up with fire progression to the north on the east and west flanks of the fire. Utilize heavy equipment to prep O'Brien road on the south flank as indirect line and to continue construction on the fuel break south of 17 Mile Creek developments. Prepare to implement evacuation plans in coordination with local emergency management.
|Projected Incident Activity|
12 hours: Minimal to Moderate fire behavior with isolated torching, flanking, and backing due to current weather conditions.
24 hours: Minimal to Moderate fire behavior with isolated torching, flanking, and backing due to current weather conditions.
GB Team 6 is also managing the Burnt Peak fire.
On the week of July 25, the sheriff enacted an evacuation order for Kilbrennan Lake Road and East Side Road that recently was expanded.
All residences should be Ready to go in the event of a wildfire. Visit http://dnrc.mt.gov/divisions/forestry/fire-and-aviation/fire-prevention-and-preparedness.
Good overnight humidity recovery was observed this morning with both the valleys and ridges sitting at 70%+. An abundance of smoke and low clouds were present this morning in the valleys and midslopes.
Throughout the day we saw temperatures recover from the cooler day on Monday reaching the 90s in the valleys and 80s on ridges. The inversion never fully broke keeping the smoke and obstructed visibility present around the incident. A couple more warm and dry days are expected for the middle of the week before we cool off with a series of incoming Pacific weather systems for the tail end of this week into next. This pattern change will usher in cooler air, breezy winds and a chance for some rain showers.