• One of the two wildfires flanking the town of Jasper in the Canadian Rockies’ Jasper National Park has breached the town and spread to buildings.
• The town’s 5,000 residents and 20,000 more park visitors fled on short notice late Monday night when the fires flared up.
• Firefighters faced myriad challenges as bucketing efforts by helicopter proved ineffective and conditions were too dangerous for water bombers to fly. Crews using heavy equipment to build fireguards couldn’t complete their work in time and controlled burns failed.

One of two raging wildfires menacing the town of Jasper in the Canadian Rockies’ largest national park roared into town Wednesday and began burning buildings.

Jasper National Park officials said the fire entered the southern edge of the community Wednesday evening and crews were battling multiple structural fires and working to protect key infrastructure. There were significant losses in some areas, they said.

Forest firefighters and others without self-contained breathing apparatuses were told to evacuate to the nearby town of Hinton, with structural firefighters staying behind.

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Parks Canada spokesperson James Eastham told reporters outside Jasper that the town is filled with smoke and there “has been structural loss.”

“At this point I can’t confirm how many, locations or specific structures. The fire continues to burn,” he said.

Parks Canada said firefighters are working to save “as many structures as possible and to protect critical infrastructure, including the wastewater treatment plant, communications facilities, the Trans Mountain Pipeline and others.”

A few hours earlier, many first responders were ordered out of Jasper National Park for their safety.

Jasper is being menaced by fires from the north and south, and the town’s 5,000 residents — along with 20,000 more park visitors — fled on short notice late Monday night when the fires flared up.

Prime Minister Justin Trudeau said they are “mobilizing every necessary resource available.” Alberta Premier Danielle Smith said she was “heartbroken.”

A record number of wildfires in 2023 forced more than 235,000 people across Canada to evacuate and sent thick smoke into parts of the U.S., leading to hazy skies and health advisories in multiple U.S. cities.

The northern fire was spotted about 3 miles from Jasper earlier in the day. The southern fire had been reported about 5 miles away from the town, but Katie Ellsworth of Parks Canada said strong wind gusts swooping in behind it sent it racing.

Everything that could go wrong did go wrong as fire perimeters changed minute by minute.

Ellsworth said bucketing efforts by helicopter failed. Crews using heavy equipment to build fireguards couldn’t complete the work before having to pull back for safety. Water bombers couldn’t help due to dangerous flying conditions.

A last-ditch effort to use controlled burns to reroute the fire to natural barriers like Highway 16 and the Athabasca River failed due to “unfavorable conditions.”

The hope was that rain forecast overnight would bring some relief.

Ellsworth said the decision to relocate all first responders to Hinton, just outside the eastern edge of the park, “has not been made lightly.”

She said, “Given the intensity of fire behavior being observed the decision has been made to limit the number of responders exposed to this risk.”

Jasper National Park is considered a national treasure. The United Nations designated the parks that make up the Canadian Rockies, including Jasper, a World Heritage Site in 1984 for its striking mountain landscape.

In 1953, Hollywood star Marilyn Monroe visited to make the movie “River of No Return.” More recently, the TV show “The Bachelorette” was filmed there.

Park rangers in helicopters scoured the park earlier Wednesday, looking for stragglers still there despite a mass evacuation aimed at moving visitors and residents away. Searchers looking through the backcountry trails of Jasper National Park already had picked up 245 people, and they continued the search Wednesday in two helicopters, Ellsworth said.

Residents and visitors streamed out by the thousands late Monday and Tuesday, and officials said Wednesday the evacuation of the town of Jasper was complete.

Ellsworth said park officials expected the evacuation of the park’s backcountry areas to be completed later Wednesday. Reservations are required for the park, so authorities have an idea of where people are, though Ellsworth said she wasn’t immediately sure how many people were left.

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Alberta has been baking under scorching temperatures that have already forced another 7,500 people out of remote communities. About 177 wildfires were burning across the province.

Jasper resident Leanne Maeva Joyeuse was relieved but exhausted after reaching the Grand Prairie evacuation center following 20 hours on the road with her grandmother, parents and younger brother.

“We’re just waiting to go back home and see how many days we’re going to be stuck here,” Joyeuse said.