Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting smoke from Canadian wildfires, covering the northern region of the U.S. at a time when people want to ...

The Dragon Bravo Fire has destroyed dozens of structures and a water treatment facility, and the White Sage Fire, located in ...

A massive wildfire near Arizona 's Grand Canyon National Park erupted overnight, growing more than 20 times in the past 24 ...

Canadian wildfire smoke returned to Wisconsin this weekend, with unhealthy levels for people with asthma and heart disease.

Most of Minnesota and parts of Montana, North Dakota and Wisconsin were ranked “unhealthy” for air quality on a U.S. Environmental Protection Agency map.

Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air due to drifting smoke from Canadian wildfires.

Wildfire smoke returns, hazing skies and raising air quality concerns for outdoor activities.

Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality advisory through Monday.

The 'Fire & Smoke' map provides you with real-time fire hotspots and 2-day forecasted smoke concentrations due to active wildfires across North America.

Dry conditions in Canada start a chain of events that exacerbates wildfires, injects plumes of smoke in the air and affects air quality in Milwaukee.

The Alaska Department of Environmental Conservation (DEC) issued an air quality advisory Tuesday afternoon for much of Central and Eastern Alaska as smoke from Canadian wildfires continues to ...

Smoke poured over the Canadian border into eastern Alaska this weekend, bringing poor air quality to communities from Southeast to the Interior. The smoke is from wildfires in Canada including the ...