It will be another hot, windy day on the flanks of the Catalina Mountains, where the Bighorn Fire has burned 107,000 acres over the past three weeks. The blaze, which began from a lightning strike on June 5, is currently 45 percent contained with more than 1,000 fire personnel on the job.
Since its start, weather and geography have added to the fire's spread throughout the Pusch Ridge and Mount Lemmon areas. As it's moved north and east, the Bighorn Fire has threatened the communities of Catalina Foothills, Oracle and Summerhaven. Most recently, the fire neared the Redington area east of Mount Lemmon.
"Today, our firefighters are out there trying to look at opportunities to come around the south side to limit the fire spread coming south,” said Incident Commander Aaron Thompson. “I know that's a concern from the community and public. That's our goal and objective for the day, but we're going to be faced with some extreme winds today. The weather service is providing us that this may be one of the windiest days in the Tucson area in several years."
Fire crews have also moved in to monitor Sabino Canyon, but there are no active fires and Thompson says the area is “looking really good” and no fire has moved south of the Sabino area. The eastern edge of the fire remains the most active, with winds fanning the flames across the open areas.
"Yesterday, firefighters were extremely challenged with the winds," Thompson said. “That limited our aircraft. We were able to still fly, but the effectiveness of some of that fire retardant and water was limited."
Summerhaven has survived as a “green island” surrounded by burnt areas, Thompson said. No structures have been lost in the community thus far, and the incident management team is reporting their fire breaks are holding strong.
Fire crews remind the public that drones are prohibited over the fire area, as firefighting aircraft are busy and must be grounded in drones' presence. According to the National Forest Service, on June 8, a drone was observed over the Bighorn Fire’s southern perimeter, which "forced the aircraft suppression effort to be halted, endangering the lives of on the ground firefighters and the air crews at a critical time during the height of the burning period." This was the second such incident in three days.
The 75,000-acre Bighorn Fire is now burning on several fronts throughout the Catalina Mountains after being fanned by gusty weather and has even stretched across the Pinal County line to the north. The June weather is reaching near 110 degrees during the day, and causing poor humidity recovery at night, resulting in “critical fire conditions,” according to the national Incident Information System. The fire is currently 33 percent contained, with 876 fire personnel on the job.
The fire is burning across the northern, southern, and eastern flanks of the Catalinas, which is expected to lead to smoky conditions today. This smoke is anticipated to worsen due to higher winds over the coming days.
During a morning meeting, Tim Reid, deputy incident commander on the Bighorn Fire, assessed the multiple areas of burning: Reid says the southern fire in Sabino Canyon and Catalina Foothills areas is fairly secure and that fire teams are "fairly optimistic, but there's still a threat." The burning across Pusch Ridge near Oro Valley is also in good shape, as the fire is entering sparser fuels as it comes off the mountain flanks.
Reid said fire crews are focusing on the fire burning north near Oracle, using bulldozers and burn lines to keep the Oracle Ridge area in check and braced for additional winds.
They are also taking steps to protect Mount Lemmon's Sumerhaven.
"The area where we're really focusing on is the Summerhaven area,” Reid said. “The basic strategy and tactics are lining and firing underneath the values at risk, and connecting them to the Mount Lemmon highway, and then bringing fire down the highway so that the values at risk are protected from a southwest push."
According to the National Forest Service, Catalina and Oro Valley have the greatest risk of smoke, especially in the morning.
"We're feeling pretty good about where we're at,” Reid said. “If we have a successful day today, the stage will be set for success with the wind test that's coming up."
Fire crews remind the public that drones are prohibited over the fire area, as firefighting aircraft are busy and must be grounded in drones' presence. According to NFS, on June 8, a drone was observed over the Bighorn Fire’s southern perimeter, which "forced the aircraft suppression effort to be halted, endangering the lives of on the ground firefighters and the aircrews at a critical time during the height of the burning period."
This was the second such incident in three days.