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Twentyfive Mile

Unit Information

Okanogan-Wenatchee National Forest
U.S. Forest Service
215 Melody Lane
Wenatchee, WA 98801

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Incident Contact

Twentyfive Mile Fire Information
Email: 2021.twentyfivemile@firenet.gov
Phone: 509-761-9217
Hours: 8am-8pm

Highlighted Activity

09/20/2021 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) Containment: 50% Location: 12 miles NW of Chelan, WA Cause: Under...
News - 09/20/2021

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)

Containment: 50%

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. 

Basic Information

Current as of
Incident TypeWildfire
CauseUnder Investigation
Date of OriginSunday August 15th, 2021 approx. 12:00 AM
Location12 miles northwest of Chelan, WA
Incident CommanderDave Gesser IC-Matt Rau ICT2-T Southwest Incident Command Team 3
Incident DescriptionWildfire
Coordinates47.973 latitude, -120.304 longitude

Current Situation

Total Personnel284
Size22,117 Acres
Percent of Perimeter Contained50%
Estimated Containment DateSaturday October 30th, 2021 approx. 12:00 AM
Fuels Involved

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.

Significant Events

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.

Outlook

Planned Actions

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.

Current Weather

Weather Concerns

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.