MONTREAL -- The hazardous haze from wildfires in Canada's northeast eased there and throughout much of northeastern United States on Friday, but Canadian officials warned it could be a marathon fire season and welcomed the help of firefighters arriving from other countries.
A contingent of 100 French firefighters landed in Canada and was en route to the fire region Friday. Hundreds more are expected to arrive from the U.S., Portugal and Spain in the coming days. About 1,200 people will be fighting fires in the province of Quebec by Monday, said Public Security Minister François Bonnardel.
The thick wildfire smoke that loomed over daily life this week for millions of people in Canada and parts of the U.S. East Coast has mostly dissipated, U.S. and Canadian officials said.
"We're doing a lot better," U.S. National Weather Service meteorologist Bryan Putnam said. "It looks like there is less smoke being produced in Canada."
He said the weather pattern seems to be the same, but there is less smoke.
Maïté Blanchette Vézina, Quebec's minister of forests and natural resources, said the situation in the province remains critical but is improving.
The province's forest fire prevention agency said the additional firefighters are a sign "the sprint phase has ended and we're now in the marathon phase," she told a Quebec City briefing.
Blanchette Vézina said efforts in the coming days will permit firefighters to contain and begin extinguishing some of the roughly 140 fires that remained active across Quebec on Friday, including some that have been allowed to burn freely due to a lack of personnel.
She said the improved situation is also allowing the province to lift the ban on activities in the woods in most of the Côte-Nord and parts of the Saguenay-Lac-St-Jean regions, although forestry work and all forms of fires are still prohibited.
As of Friday, the fires had forced more than 13,500 Canadians from their homes, many of them in the northern municipalities of Chibougamau and Lebel-sur-Quévillon. About 50 people were also evacuated from a detention center in Amos, Quebec, as a preventive measure, Bonnardel said.
Quebec's forest fire prevention agency has described the current wildfire season as the worst on record. The province has reported a total of 444 wildfires so far this year, compared to an average of 207 at the same date during prior years.
Experts say the wildfires have been fueled by an unusually dry and warm period in spring, and no rains are expected until next week.