FLAGSTAFF — The Coconino National Forest is reducing the size of the area closure for the Museum Fire on today to allow for increased access and recreation on parts of Mt. Elden.

The Burned Area Emergency Response team has completed treatments to the land, including mulching with a helicopter in effort to stabilize the watershed and encourage recovery. Now that this important work is complete, the public will be allowed in additional areas of the burned area.

Although additional areas are open, the public is urged to use caution, as hazards still exist such as ash pits, rolling rocks, weakened trees, falling trees and possible floodwaters.

Some areas will remain closed that pose a continued and increased risk to visitors. These areas will be re-evaluated after the winter season to see what risks can be mitigated before opening to the public.

Portions of Forest Road 789 and FR 6353 marking the restricted-area boundary are OPEN to non-motorized use only. Elden Lookout Road (FR 557) is closed to all traffic where it intersects with the Arizona National Scenic Trail. Please see the official closure order and map for details.

The following trails will be OPEN:

• Arizona National Scenic Trail (ANST)
• Heart Trail
• Little Bear Trail
• Little Gnarly
• Lower Oldham Trail from Buffalo Park to the ANST junction
• Rocky Ridge Trail from ANST to Schultz Creek Trail
• Schultz Loop Trail
• Sunset Trail from the intersection of Schultz Tank to Little Bear Trail

The following trails will remain CLOSED:

• Brookbank Trail (entire trail)
• Lower Oldham, from ANST to Brookbank Trail
• Rocky Ridge Trail, from ANST to Brookbank Trail
• Sunset Trail, from Little Bear Trail to Elden Lookout Trail
• Upper Oldham Trail (entire trail)

For more information about the Mt. Elden area, please call the Flagstaff Ranger District at 928-526-0866.

FLAGSTAFF – The Forest Service is announcing the preliminary results of the investigation regarding the cause of the Museum Fire, a wildfire which began July 21 and burned 1,961 acres on the Coconino National Forest above Flagstaff.

Fire investigators have determined that the human-caused wildfire originated in a steep slope environment associated with critical restoration work and was likely caused by an excavator striking a rock during operations. The resulting spark created a heat source that hibernated until warm, dry, and windy conditions arrived that caused the heat source to grow into a small fire and was subsequently spread by the wind. Rock strikes are possible during operations in steep slope thinning restoration projects such as the Flagstaff Watershed Protection Project.

At this time, the investigation has shown that the cause of the fire was not related to negligence and that all proper inspections of equipment were conducted. The investigation also determined that the last piece of equipment was used 14 hours prior to the first report of fire, and the operator had completed a one-hour fire watch before leaving the area.

“It’s unfortunate that the Museum Fire started as the result of ongoing restoration work designed to reduce the risk of uncharacteristic wildfire and improve forest health and resiliency—especially in the Flagstaff area where citizens joined together to invest resources to help fund the Flagstaff Watershed Protection Project,” said Coconino National Forest Supervisor Laura Jo West. “Fortunately, some of the restoration work that had been completed previously in and around the wildfire area actually helped stop the fire from becoming larger and more destructive.”

Post-fire analysis show that 50 percent of the wildfire burned at low severity, 38 percent burned at moderate severity, and 12 percent of the area burned at high severity. During the past several years, city and Coconino National Forest personnel have worked diligently to implement planned Flagstaff Watershed Protection Project actions and have made substantial progress.

“While the cause of the fire is unfortunate, it does not take away from the significant mitigating impact the treatment work had on the fire and subsequently the forest and our watershed,” said Flagstaff Mayor Coral Evans. “The restoration work initiated by the Flagstaff Watershed Protection Project, in partnership with the Forest Service, is incredibly valuable and we remain committed to continuing this work and further protecting our watershed.”

Deep layers of forest fuels and roots can hold heat for long periods of time, burning and smoldering underground for days, weeks, or months without any sign of a fire. They can surface at a later time when temperatures become warmer and the weather becomes windier, causing a wildfire. As with all investigations, the Forest Service will continue to investigate and provide updates if new information is uncovered.

FLAGSTAFF – The current hot and dry weather that Northern Arizona is experiencing, coupled with the below average monsoonal moisture, is causing some areas of the Museum Fire to show increased fire activity and smoke.

The 1,961-acre fire remains at 100 percent containment and the fire activity is deep within the fire area and poses no threat to containment lines. The cause of the fire is still under investigation and is currently in patrol status with one engine and miscellaneous overhead assigned. The Burned Area Emergency Response (BAER) team continues implementation of the the recommendations to stabilize conditions in the fire area.

The mosaic burn pattern the Museum Fire exhibited across the landscape has left areas that did not burn at all. These aforementioned areas may begin to burn over the next few weeks or months. These interior islands pose no threat to the containment lines and may vary in size from a few square feet to an acre or two in size. Most of the time these areas burn with very low intensity but this can vary based on fuel loading, topography, and climatic conditions.

These areas are being monitored closely, but are not being suppressed due to their inaccessibility and the hazards associated with working for extended periods of time in remote post burn areas. These hazards include significant numbers of burned out trees, burning stump holes that may extend far beyond what is evident above ground, steep inaccessible terrain and rolling material.

The Museum Fire will continue to be monitored closely by firefighters to ensure that it remains safely within the containment lines.

Visitors to the Coconino National Forest are encouraged to know before you go by visiting Inciweb at inciweb.nwcg.gov/incident/map/6450/0/93533 to view a map of the Museum Fire Public Safety Closure area.

FLAGSTAFF – Containment of the 1,961-acre Museum Fire increased to 91 percent yesterday, with high humidity decreasing fire behavior within the perimeter. The cause is still under investigation.

Resources assigned to the fire include: 4 hotshot crews; 1 Type 2 hand crew; 2 helicopters; 5 engines; and, 1 dozer.

Yesterday, firefighters completed chipping operations along Forest Road 789 as a part of suppression repair efforts. Chipping operations will continue today near Shultz Tank. Crews are working with heavy equipment to stabilize roads in the fire area and will continue to patrol and hold the containment line, cooling hot spots as necessary.

The potential for strong thunderstorms exists through Friday. Understand that all drainages within and downstream of the burned area can produce flash flooding. Flash floods can occur even though it is not raining where you are – it may be raining hard further upstream.

The Burned Area Emergency Response (BAER) team is evaluating watershed conditions to determine the level of potential risks on National Forest System lands to human life, safety, property, critical natural and cultural resources, and determine appropriate and effective emergency stabilization measures to reduce unacceptable risks from potential flooding and debris flow. A BAER team conducts field surveys and uses science-based models to rapidly evaluate and assess the burned area. BAER assessment teams are staffed by specially trained professionals who can prescribe emergency response actions that can be implemented quickly and effectively.

Today, the BAER Team will complete their risk assessment for BAER critical values. This risk assessment will be used to develop treatment recommendations for land managers.

Prior to visiting the Coconino National Forest, be sure to view the map of the Museum Fire Public Safety closure area. Detailed information and a map are available on Inciweb at inciweb.nwcg.gov/incident/map/6450/0/93533.

The Museum Fire Information phone line remains open from 8 AM to 6 PM at 928-288-2484. Information is also available on Facebook at www.facebook.com/museumfireinfo and Twitter @MuseumFireInfo.

FLAGSTAFF – The Museum fire containment is going so well that the Type I management team plans to transfer command back to Coconino National Forest tomorrow by 6 p.m. Containment of the fire, that remains at 1961-acres, is at 82%.

The Southwest Area Type 1 Incident Management Team 2, led by Incident Commander Rich Nieto, plans to transfer command of the Museum Fire back to the Coconino National Forest tomorrow, July 30, 2019, at 6 PM. A local Type 3 organization led by Incident Commander Preston Mercer will continue to fight the fire.

Personnel from the Type 3 organization are on-site shadowing the Type 1 team, and together are producing a plan for a smooth transition. Fire activity has been minimal with no perimeter growth the past two days. Firefighters will continue to closely monitor the fire on the ground and will utilize aerial resources as needed.

Firefighters on the ground worked in conjunction with helicopters to cool hotspots on the north and east flanks today. Heavy fuels will continue to burn and smolder within areas the fire perimeter until significant rains set in.

A robust initial attack crew is staying vigilant as monsoon weather is anticipated to bring thunderstorms to the area tonight and tomorrow, and stand ready to suppress any new starts.

The Coconino National Forest has released a new Forest Order reducing the Museum Fire Public Safety closure area. Detailed information and a map are available on Inciweb at inciweb.nwcg.gov/incident/map/6450/0/93533.