“Air quality across the state ranges from MODERATE to UNHEALTHY, with the worst air quality concentrations occurring in the southern half of the state, south of the I-90 corridor. Air quality has worsened this morning, and will likely continue to worsen through Tuesday,” Montana Department of Environmental Quality announced in a news release.
The department issued an air quality alert for Beaverhead, Carbon, Gallatin, Lewis and Clark, Madison, Missoula, Park, Pondera, Powder River, Powell, Ravalli and Sweet Grass counties. The state has 56 counties.
The heat is also an issue for residents. About 1.1 million people are under excessive heat warnings in parts of Montana — and Idaho, Oregon, and Wyoming — but most warnings will end by Tuesday.
A firefighter who was reported missing near Montana’s border with Idaho has been found safe, authorities said.
“The individual has been found, uninjured and safe. Thank you to all those who assisted and to our dedicated Search and Rescue Volunteers. We are thankful for the positive outcome!!” the Missoula County Sheriff’s Office said in a message on Facebook.

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More than 22,000 deployed to battle fires
More than 22,400 firefighters and other personnel have been deployed to battle the flames throughout the US, the NIFC said.
The Missoula County Sheriff’s Office issued an evacuation warning from Martin Creek on Highway 12 to the Idaho border as wildfires continue to burn in the area.
The dangerous fire conditions have already injured five federal firefighters who were working in Montana last week.
“Numerous wind shifts and rapid rates of spread resulted in erratic fire behavior as thunderstorms and associated cells were passing over the area when the incident occurred,” the release said.
The bureau said the firefighters were evacuated and medically evaluated to “determine the extent of their injuries” following the incident on July 22 in Garfield County. An update on their conditions was not available.
Beaverhead-Deerlodge is the largest of the national forests in Montana, covering 3.35 million acres within eight southwest Montana counties.
The fire worked its way up to the Continental Divide, with approximately 15 acres burning on the Idaho side.
Baby bear burned
A 6-month-old black bear cub with burned paws is recovering after being found by homeowners returning to their property in Markleeville, California.
The homeowners, the only residents allowed to return to their area, spotted the injured animal and called Lake Tahoe Wildlife Care, which sent a team to catch the 21-pound male cub.
“Fortunately, the team was able to locate the bear cub in total darkness,” officials with the wildlife care team said in a news release. “However, even with his injuries the cub still tried to flee.”
The baby bear had severe burns to his four paws and was treated with pain medications and fluids. His paws were treated with Manuka honey, according to the release.
The bear was named “Tamarack” for the wildfire from which he was rescued.
Severe fire conditions fueling Bootleg Fire
As of Monday, more than 541,000 acres have burned in Oregon due to seven large wildfires, with the Bootleg Fire — the state’s current largest wildfire — accounting for 409,611 acres charred since it sparked July 6.
The more than 2,000 firefighters battling the Bootleg Fire have seen success in the batle against the blaze, according to public information officer Al Nash.
“We’re making good progress and feeling good about what we’ve accomplished, recognizing there’s still a significant amount of open fire line,” Nash told CNN. “We have potential for thunderstorms and the biggest issue is the gusty outflow winds from thunderstorms, which can increase the fire activity.”
Gov. Kate Brown told CNN’s Jake Tapper on Sunday she is worried high temperatures will continue to contribute to the spread of the Bootleg Fire.
“It’s incredibly important with climate change, that we get into these forests and start doing the fitting and harvest and prescriptive burning, so that we can create healthier landscapes that are more resilient, for wildfire,” Brown said.
She signed legislation last week that would arm the state with tools and resources to make communities “more adaptive” to wildfires. The legislation includes resources for adequate firefighting tools and prescriptive and mitigation efforts.
Dixie Fire exhibiting extreme fire behavior
The smaller Fly Fire has merged with the Dixie Fire in the larger blaze’s east zone.
“Engines are deployed in Taylorsville prepping for structure protection in the event the fire reaches the area as it continues moving northeast,” Cal Fire officials said.
Plumas County Sheriff Todd Johns said Sunday that the Indian Falls area has undergone significant loss. In the small community, 18 of 25 homes are thought to have been lost, he said.
CNN’s Stella Chan, Joe Sutton, Robert Shackelford, Hollie Silverman, Deanna Hackney, Jenn Selva, and Claudia Dominguez contributed to this report.