Twentyfive Mile Fire Update September 20, 2021
Size: 22,061 acres
Total Personnel: 330 (7 crews, 13 engines, 3 helicopters, 17 water tenders, 2 heavy equipment)
Location: 12 miles NW of Chelan, WA
Cause: Under investigation
Starting today, due to the decrease in fire activity, updates will begin to be released every other day.
Reminder about Drones: If you fly, we can’t. All aerial suppression efforts are grounded when drones are detected within the restricted flight area of the fire.
Yesterday: The cooler, wetter weather this weekend helped decrease fire activity. Much of the firefighters’ efforts will now focus on rehab, repair, monitoring and patrol. Crews finished much of the chipping operations along the southern and northern perimeter. They will chip along the northwestern edge of the fire for the next couple of days. Four excavators were brought in to repair dozer lines. Road crews continued to spread gravel and repair damaged roads.
|Current as of|
|Date of Origin||Sunday August 15th, 2021 approx. 12:00 AM|
|Location||12 miles northwest of Chelan, WA|
|Incident Commander||Dave Gesser IC-Matt Rau ICT2-T Southwest Incident Command Team 3|
|Coordinates||47.973 latitude, -120.304 longitude|
|Percent of Perimeter Contained||50%|
|Estimated Containment Date||Saturday October 30th, 2021 approx. 12:00 AM|
Short grass, brush, and timber. Pot Peak burn footprint with shrubs and varying amounts of standing and fallen snags. Fire spread is driven by the density and dryness of the heavy fuels, leading to fingering and patchy burn patterns. Regeneration and shrubs may or may not, depending on moisture, contribute to the continuity of the fuel bed, allowing fire to spread with wind or slope.
The shorter burn period, the increase in Relative Humidity, and recent precipitation has initiated the season ending wetting of fuels, affecting the availability of fuels to burn.
Division A/D-Continue to secure and mop up handline and roaded containment lines.
Suppression/repair will continue on dozer and contingency lines throughout the division.
Division G- Hold, Mop up and patrol containment lines throughout division will occur by ground or air.
Repair and rehab of hand lines as needed will occur.
Division T/Y - Continue with mop-up and patrol. Crews are implementing rehab and repair of firelines (specifically dozer lines) using heavy equipment.
Division N-Monitor main fire, specifically fire below East Point and thirty-five mile creek. Repair and rehab of hand lines as needed will occur.
Repair Group- Roads (gravel, grading, etc...) are being rehabbed to improve safety, reduce washout and improve traffic flow.
prove safety and traffic flow.
|Projected Incident Activity|
12 hours: Minimal fire behavior continues with the clearing skies, which allows solar heating to start and dry the 1hr and 10hr fuels. The 100 hr, 1000 hr fuels will continue to burn where heat is present. Minimal spread is expected through the operational period.
24 hours: Surface fire comprised of backing, creeping, smoldering and isolated torching. Fire could become more active in unburned areas as clearing skies allow solar heating to dry the exposed fuels. Minimal fire growth expected.
A warming trend began on Monday as high pressure built over the region. Temperatures around 70 blanketed the valleys and the higher ridges showed temperatures well into the 50s for the first time in the last three days. Warming will continue Tuesday increasing temperatures another 3 to 5 degrees. Wednesday is the first day of the Fall season. A weak, dry cold front will bring some clouds and breezes to the area Wednesday afternoon and evening. High pressure will rebound continuing the warming and lighter wind trend toward the end of the week.