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East Fork Fire

Unit Information

Ashley National Forest
U.S. Forest Service
Vernal, UT 84078

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Incident Contact

Fire Information
Phone: 435-635-8738
Hours: 7 am to 9 pm

Highlighted Activity

09/26/2020 East Fork Fire Update - September 26, 2020
Yesterday: Firefighters held their own against red flag conditions. Crews, “scooper” fixed wing aircraft, helicopters, and dozer operators worked swiftly to line spot fires between Petty...
News - 09/26/2020
Photo courtesy Ben Titus ICE-Burns 29Image options: [ Full Size ]

September 26, 2020, 9:00 AM: Firefighters held their own against red flag conditions. Crews are now fully suppressing spot fires from the previous days' wind events.

Suppression repair work is now a major component of the firefighting effort. As fire management objectives continue to be met, crews working with hand tools and heavy machinery will repair damages and minimize potential soil erosion and other impacts resulting from fire suppression activities along dozer lines, handlines, roads, trails, staging areas, safety zones, and drop points used during fire suppression efforts.

The East Fork Fire started on August 21, 2020, after a lightning storm passed through the area. The area has not experienced a large fire in about 50 years, numerous standing dead trees create hazards for wildland firefighters. Suppression efforts are focused on protecting critical infrastructure, private property, and other assets near the fire.

Closures are in effect for the Ashley National Forest and Uintah and Ouray Tribal lands. Click on the closure and map tabs for details.

Basic Information

Current as of
Incident TypeWildfire
Date of OriginFriday August 21st, 2020 approx. 10:45 AM
Location13 miles north of Hanna, Utah
Incident CommanderGreat Basin Team 7
Coordinates40.611 latitude, -110.714 longitude

Current Situation

Total Personnel241
Size68,342 Acres
Percent of Perimeter Contained64%
Estimated Containment DateFriday October 30th, 2020 approx. 12:00 AM
Fuels Involved

Upper elevations across the fire area are dominated by Aspen and timber fuel models with heavy dead and bug kill, with many patches of rock that help break up continuity. Lower elevations are dominated by grass and sagebrush with timber stringers consisting of juniper and aspen.

Significant Events

Active fire behavior took place northwest of the Moon Lake campground in Brown Duck Basin and Mackentire Draw with rapid rates of spread, passive crown fire, and short-range spotting. Moderate fire behavior was seen in the upper Rock Creek drainage and West Fork Rock Creek with fire creeping, backing, and single tree torching with slow rates of spread.


Planned Actions

Patrol southern and southeastern perimeter of the fire. Finalize mop up operations along burn edge on the northeastern control lines. Continue to monitor wilderness areas and fire west of Lake Fork Mountain. Scout and assess fire perimeter as a result of Red Flag conditions and pick up any hot spots/new activity outside of control lines.

Projected Incident Activity

Red Flag Warning for high winds and low Rh. Expect active fire behavior northwest of the Moon Lake campground in Brown Duck Basin with rapid rates of spread, group tree torching, and possible passive crown fire. Expect moderate fire behavior in West Fork of Rock Creek, upper portions of Rock Creek Canyon, Mackentire draw, Raspberry draw, and in the Lake Fork Mountain area with single tree torching and moderate rates of spread.

Current Weather

Weather Concerns

Observed: A red flag warning was in effect today for low relative humidities and gusty winds. Sunny, windy and warm. Winds were down drainage 8-12 mph with gusts to 18 mph this morning then switched to upslope at 8-12 mph with gusts to 26 mph in the afternoon. Winds on ridges were west to northwest at 10-15 mph with gusts to 20 mph this morning and 15-20 mph with gusts to 32 mph this afternoon. Temperatures were warmer today with highs 60-64 degrees at 10,000 ft and the mid 70s at 10,000 ft. Max RH was near 40% in the drainages but remained below 30% on the ridges. Min RH today was 10-13% at 8000 ft and 15-18% at 10,000 ft.

Forecasted: Red Flag Warning in effect today for low RH and gusty winds. Mostly sunny and windy. Max temperatures will be in the low 60s at 10,000 ft and low to mid 70s at 8,000 ft, while min humidity will be 19-23% at 10,000 ft and 13-17% at 8,000 ft. Winds will be west southwest at 12-16 mph with gusts to 22mph over the ridges in the morning and 15-20 mph with gusts to 35 mph on the ridges. Winds in the major drainages will shift from northerly at 6-9 mph with gusts to 18 mph in the morning, to more south/southeasterly at 10-15 mph with gusts to 26 mph in the afternoon.